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viewsonic VA1912W-2 va1912wb-2 model no. vs1 0866 19? color tft lcd display (va1912 w -2_va1912wb-2_sm rev. 1b aug. 2006) viewsonic 381 brea canyon road, walnut, california 91789 usa - (800) 888-8583 service manual www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation copyright copyright ? 2006 by viewsonic corporation. all rights reserved. no part of this publication may be reproduced, transmitted, tran scribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, el ectronic, mechanical, magnetic, optical, chemical, manual or ot herwise, without the prior wri tten permission of viewsonic corporation. disclaimer viewsonic makes no representations or warranties, either expresse d or implied, with respect to the contents hereof and specifically disclaims any warranty of merc hantability or fitness for any particular purpose. further, viewsonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of viewsonic to notify any person of such revision or changes. revision history revision sm editing date ecr number description of changes editor 1b 8/09 /2006 vs-e060210 add va1912wb-2 from VA1912W-2 jamie chang 1a 04/14/2006 init i al release jamie chang i va1912w- 2 _va1912wb-2 confidential - do not copy trademarks optiquest is a registered trademar k of viewsonic corporation. viewsonic is a registered trademar k of viewsonic corporation. all other trademarks used within this document ar e the property of their respective owners. www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation table of contents 1. precautions and safety notices 1 2. specification 3 3. front panel function control description 10 4. circuit description 1 6 5. adjustment procedure 17 6. troubleshooting flow chart 3 7 7. recommended spare parts list 45 8. exploded diagram and expl oded parts list 50 9. block diagram 52 10. schematic diagrams 53 11. pcb layout diagrams 60 ii va1912w- 2 _va1912wb-2 confidential - do not copy www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation 1. precautions and safety notices 1 confidential - do not copy 1. appropriate operation (1) turn off the product before cleaning. (2) use only a dry soft cloth when cleaning the lcd panel surface. (3) use a soft cloth soaked with mild detergent to clean the display housing. (4) use only a high quality, safety approved ac/dc power cord. (5) disconnect the power plug from the ac outlet if the product will not be used for a long period of time. (6) if smoke, abnormal noise, or strange odor is present, immediately switch the lcd display off. (7) do not touch the lcd panel surf ace with sharp or hard objects. (8) do not place heavy objects on the lcd di splay, video cable, or power cord. (9) do not use abrasive cleaners, waxe s or solvents for your cleaning. (10) do not operate the product under the following conditions: - extremely hot, cold or humid environment. - areas containing excessive dust and dirt. - near any appliance generating a strong magnetic field. - in direct sunlight. 2. caution no modification of any circuit should be attempted. servi ce work should only be performed after you are thoroughly familiar with all of the following safety checks and servicing guidelines. 3. safety check care should be taken while servicing this lcd display. because of the high voltage used in the inverter circuit, the voltage i s exposed in such areas as the a ssociated transformer circuits. 4. lcd module handling precautions 4.1 handling precautions (1) since front polarizer is easily damaged, pay attention not to scratch it. (2) be sure to turn off power supply when connecting or disconnecting input connector. (3) wipe off water drops immediately. long contact with water may cause discoloration or spots. (4) when the panel surface is soiled, wipe it with absorbent cotton or other soft cloth. (5) since the panel is made of glass, it may break or crack if dropped or bu mped on hard surface. (6) since cmos lsi is used in this module, take care of static electricity and ensure human earth when handling. (7) do not open or modify the module assembly. (8) do not press the reflector sheet at th e back of the module in any direction. (9) in the event that a module must be put back into the packing container slot after it was taken out of the container, do not press the center of the ccfl reflector edge. instead, press at the far ends of the cfl reflector edge softly. otherwise the tft module may be damaged. (10) at the insertion or removal of th e signal interface connector, be sure not to rotate or tilt the in terface connector of the tft module. (11) after installation of the tft module into an enclosure (lcd monitor housing, for example), do not twist or bend the tft module even momentarily. when designing the enclosure, it should be taken into consideration that no bending/twisting forces may be applied to the tft module from outside. otherwise the tft module may be damaged. (12) the cold cathode fluorescent lamp in the lcd contains a small amount of mercury. please follow local ordinances or regulations for disposal. (13) the lcd module contains a small amount of materials having no flammability grade. the lcd module should be supplied with power that complies with the requirements of limited power source (iec60950 or ul1950), or an exemption should be applied for. (14) the lcd module is designed so that the ccfl in it is supplied by a limited current circuit (iec60950 or ul1950). do not connect the ccfl to a hazardous voltage circuit va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation correct methods : incorrect methods : only touch the metal-frame of the panel or the front cover of the monitor. do not touch the surface of the polarizer . surface of the panel is pressed by fingers & this may cause ? mura ? take out the monitor with cushion take out the monitor by grasping the lcd panel. that may cause ? mura?. place the monitor on a clean & soft foam pa d . place the monitor on foreign objects . that could scratch the surface of panel 2 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation 2. specification 2.1 instruction features VA1912W-2 / va1912wb-2 size 19? wide luminance (typ, cd/ O ) 300 cd/ O contrast ratio (typ) 500:1 colors ( 6 bit + 2 bit frc) 16.2 m colors response time (typ) 8 ms viewing angle (h/v) 150 / 130 tftlcd panel recommend resolution 1440 x 900@60hz analog (75ohms, 0.7/1.0 vp-p) yes input signal digital no separate sync yes composite sync no sync compatibility sync on green no pc yes power mac yes compatibility tv box (nextvision 6) yes power voltage ac 100-240v, 50/60hz yes on mode(max / typ) 36w(max) / 32w(typ) power consumption active off mode (max) 2w audio amplifier / speaker 1.5 w / 2.5w x 2 tilt ( 20 to -5 ) yes swivel no pivot no ergonomics height adjust no osd control [ ; x] [ 1 ] [ ] [ ] [ 2 ] [ ] yes physical (w x h x d mm) 451 x 391 x 197 (mm) 17.8 x 15.4 x 7.8 (in) dimension package (w x h x d mm) 538 x 470 x 158 (mm) 21.2 x 18.5 x 6.2 (in) physical (net kg/lb) 4.5kg (9.9lb) weight package (gross kg/lb) 6.2kg (13.7lb) temperature ( H / ) 41 H -95 H /+5 -+35 operating condition humidity (%) 20 % - 80 % temperature ( H / ) -4 H -131 H /-20 -55 storage condition humidity (%) 20 % - 85 % regulation cb / tco99 / ul/cul / fcc-b / ices 003 / argentina-tuv/s / nom / epa energy star / tuv/ergo / iso13406-2 / tuv/gs / ce / gost-r / sa so / bsmi / psb / c-tick / korea (mic) / ccc 3 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation 2.2 general spection test resolution & frequency 1440 x 900 @ 60hz test image size full size contrast and brightness controls factory default: contrast = 70%, brightness = 100% 2.3 video interface analog input connector db-15 (analog), refer the appendix a digital input connector n/a default input connector defaults to the first detected input video cable strain relief equal to twice the weight of the monitor for five minutes video cable connector db-15 pin out compliant ddc 2b video signals video rgb (analog) separate video impedance 75 ohms (analog) maximum pc video signal 950 mv with no damage to monitor maximum mac video signal 1250 mv with no damage to monitor sync signals ttl ddc 2b compliant with revision 1.3 sync compatibility separate sync video compatibility shall be compatible with all pc type computers, macintosh computers, and after market video cards resolution compatibility 640 x 350*, 640 x 480, 720 x 400* (640 x 400*), 800 x 600, 832 x 624, 1024 x 768, 1152 x 864, 1280 x 768, 1280 x 960, 1280 x 1024, 1440 x 900 * the image vertical size might not be full screen. but the image vertical position should be at the center. exclusions not compatible with interlaced video 4 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation 2.4 power supply power supply (adapter) part number: 27-d003247 input voltage range 90 to 264 vac input frequency range 47 to 63 hertz short circuit protection output can be shorted without damage over current protection fuse 3.15 a typical at 250 va c leakage current 75 ma (max) at 240vac / 50hz efficiency 80 % typical at 100vac @60hz fuse internal and not user replaceable power dissipation 36 wat ts max input ac current 1.6 arms @ nominal range inrush current (cold start) 80 a @ 240vac , 50hz power supply cold start shall start and function properly when under full load, with all combinations of input voltage, input frequency, and operating temperature power supply transient immunity shall be able to withstand an en61000-4-4 2kv transient test with no damage power supply line surge immunity shall be able to withstand 2kv (l-l) and 2.3kv (l-pe) with no damage power supply missing cycle immunity shall be able to function properly, without reset or visible screen artifacts, when ? cycl e of ac power is randomly missing at nominal input power supply acoustics the power supply shall not produce audible noise that would be detectable by the user. audible shall defined to be in compliance with iso 7779 (din en27779:1991) noise measurements of machines acoustics. power switch noise shall not be considered us type power cable separate 3-prong nema 5-15p type plug. length = 1.8m. connects to display. color = black european type power cable schuko cee7-7 type plug. length = 1.8m, connects to display. color = black ccc type power cable separate 3-prong type plug. length = 1.8m. connects to display. color = black pse type power cable separate 2-prong nema 1-15p type plug. length = 1.8m. connects to display. color = black power saving operation(method) vesa dpms signaling power consumption on mode < 36 w (max) / 32 w (typ) active off < 1 w recovery time on mode = n/a, active off < 5 sec 5 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation 2.5 electrical requirement horizontal / vertical frequency horizontal frequency 30 ? 82 khz vertical refresh rate 50 ? 85* hz. maximum pixel clock 135 mhz (edid file is 140mhz) sync polarity independent of sync polarity. primary presets 1440 x 900 @ 60hz user presets number of user presets (recognized timings) ava ilable: 10 presets total in fifo configuration changing modes maximum mode change blank time for image stability : 3 seconds (max), excluding ?auto adjust? time under dos mode (640 x 350, 720 x 400 & 640 x 400), there is no ?auto adjust? feature. the monitor needs to do ?auto adjust? the first time a new mode is detected but except the dos mode 640 x 350, 720 x 400 & 640 x 400.(see section ?0-touch? function actions?) while running change mode, auto adjust or memory recall, the image shall blank 6 confidential - do not copy va1912w- 2 _va1912wb-2 timing table item timing analog digital 1 640 x 350 @ 70hz, 31.5khz yes no 2 640 x 400 @ 60hz, 31.5khz yes* no 3 640 x 400 @ 70hz, 31.5khz yes no 4 640 x 480 @ 60hz, 31.5khz yes no 5 640 x 480 @ 67hz, 35.0khz yes no 6 640 x 480 @ 72hz, 37.9khz yes no 7 640 x 480 @ 75hz, 37.5khz yes no 8 640 x 480 @ 85hz, 43.27khz yes no 9 720 x 400 @ 70hz, 31.5khz yes no 10 800 x 600 @ 56hz, 35.1khz yes no 11 800 x 600 @ 60hz, 37.9khz yes no 12 800 x 600 @ 75hz, 46.9khz yes no 13 800 x 600 @ 72hz, 48.1khz yes no 14 800 x 600 @ 85hz, 53.7khz yes no 15 832 x 624 @ 75hz, 49.7khz yes no 16 1024 x 768 @ 60hz, 48.4khz yes no 17 1024 x 768 @ 70hz, 56.5khz yes no 18 1024 x 768 @ 72hz, 58.1khz yes no 19 1024 x 768 @ 75hz, 60.0khz yes no 20 1024 x 768 @ 85hz, 68.67khz yes no 21 1152 x 864@ 75hz, 67.5khz yes no 22 1280 x 1024 @ 60hz, 63.4khz yes no 23 1280 x 1024 @ 75hz, 79.97khz yes no 24 1280x 768 @ 60hz, 47.78khz yes no 25 1280 x 960 @60hz, 60khz yes no 26 1440 x 900 @ 60hz, 55.96khz yes no *the image vertical size might not be full screen. www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation 2.6 front panel controls and indicators front panel hardware controls power switch (front head) power control, soft power switch. power led (front head) green ? on orange ? active off dark = soft power switch off front panel controls (head) [ ; x] [ 1 ] [ ] [ ] [ 2 ] [ ] [ ] power [ 1 ] button 1 [ 2 ] button 2 [ ] up arrow button [ ] down arrow button [ ; x] audio mute on/off note: power button, button 1 and button 2 and mute button must be one-shot logic operation. (i.e. there should be no cycling) reaction time osd must fully appear within 0.5s after pushing button 1 short cuts function from the button(s) [1] main menu [2 ] adjust contrast / brightness [ ] or [ ] to immediately activate contrast menu. it should be change to brightness osd by push button [2] [ ] + [ ] recall both of contrast and brightness to default [1] + [2] toggle 720x400 and 640x400 mode when input 720x400 or 640x400 mode [1] + [ ] + [ ] white balance. (not shown on user?s guide) [1] + [ ] power lock [1] + [ ] osd lock [ ; x] audio mute on /off remark : all the short cuts function are only available while osd off 7 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation main menu controls auto image adjust * 1 contrast/brightness * 2 * 4 audio adjust vo l u m e * 4 , mute* 4 color adjust srgb, 9300k, 6500k(default), 5400, 5000, user color [r, g, b] information h frequency, v frequency, resolution, pixel clock, serial number, model number, ?www.viewsonic.com ? manual image adjust h. size* 1 , h./v. position* 1 , fine tune* 1 , sharpness* 3 setup menu language [english, french, german, spanish, italian, fi nnish, japanese, traditional chinese, simplified chinese], resolution notice, osd position, osd timeout, osd background memory recall * 1 these functions are not available in digital mode * 2 these functions are not available under srgb mode * 3 these functions are not available under native resolution mode * 4 these functions setting can be recalled to default by [ ]+[ ] [remark] please refer to the detail in the appendix c function descriptions osd lock short cuts function for the buttons the osd lock will be activated by pressing the front panel control buttons "(1), & ( )" for 10 seconds. if the user then tries to access the osd by pressing any of the buttons "1", " ", " ", "2" a message will appear on the screen for 3 seconds showing "osd locked". the os d lock will be deactiv ated by pressing the front pa nel control buttons "(1), & ( )" again for 10 seconds. note1: when the osd is locked will lock all functions, including ?volume? and ?mute? note 2: status bar indicating osd lock or unlock is in progress and when complete it will indicate ?osd locked? note 3: osd lock should not lock power button and power lock function power lock short cuts function for the buttons the power button lock will be activated by pressing the front panel control buttons "(1), & ( )" for 10 seconds. locking the power button means that the user won't be able to turn off th e lcd while the power button is locked. if the user presses the power button while it is locked, a message will appear on the sc reen for 3 seconds showing "power button locked". it also means that with the power button locked, the lcd would automati cally turn back "on" when power is restored after a power failure. if the power button is not in the locked mode, then powe r should return to it's previous state when power is restored after a power failure. the power button lo ck will be deactivated by pressing th e front panel contro l buttons "(1), & ( )" again for 10 seconds. note 1: status bar indicating power button lock or unlock is in progress and when complete it will indicate ?power button locked? note 2: power should only be lockable in the ?on state? memory recall actions memory recall action on the analog and digital mode as below 1. set the factory defaults as shown in section 4-8 2. clean all the mode setting buffer 3. execute auto image adjust note: memory recall should have no effect for langua ge, power lock, user color settings or input priority resolution notice actions 1. resolution notice osd should show on screen after changing to non-native mode for 30 sec 2. the osd should disappear after 10 sec or by pushing button [1] or [2] resolution notice function should be disabled when push button [2] under resolution notice osd 0-touch? function actions 1. execute auto image adjust when new mode detected, and save the settings to buffer for further use 2. it should be reset by memory recall function (should not reset by power off, power unplug and others) 8 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation osd auto save the osd shall save new settings when it is turned off by the user or when it times out. there shall not be a separate save 2.7 audio interface (speaker specification) line input connection 3.5 mm stereo jack line input signal 1 vrms line input impedance 20k ohms maximum power output (electric) 1.5w / ch signal to noise ratio 72 db frequency response 300 to 20khz distortion 8%@1khz vibration there should be no audible vibration with volume at 100%. (input signal within 1 vrms) screen image there should be no affect on the screen image stability under any conditions connector pc99 requirement audio in lime green pantone # 577c cable type / length 3.5mm stereo cable / 1.8m length audio dpms note: there is no guarantee <1 w power consumption in active off mode, when the audio cable is connected 9 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation 3. front panel function control description adjusting the screen image use the buttons on the front control panel to display and adjust the osd controls which display on the screen. the osd controls are explained at the top of the next page and are defined in ?main menu controls? on page 10. 10 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation do the following to adjust the display setting: 1. to display the main menu, press button [1]. note: all osd menus and adjustment screens disa ppear automatically after about 15 seconds. this is adjustable through the osd timeout setting in the setup menu. 2. to select a control you want to adjust, press or to scroll up or down the main menu. 3. after the control is selected, press button [2]. a control screen like the one shown below appears. the command line at the bottom of the control screen tells what to do next from this screen. you can toggle between control screens, adjust the selected option, or exit the screen. 4. to adjust the setting, press the up or down buttons. 5. to save the adjustments and exit the menu, press button [1] twice . the following tips may help you optimize your display: ? adjust the computer's graphics card so that it outputs a 1440 x 900 @ 60hz video signal to the lcd display. (look for instructions on ?changing the refresh rat e? in the graphics card's user guide.) ? if necessary, make small adjustments usi ng h. position and v. position until the screen image is completely visible. (the black border around the edge of the screen should barely touch the illu minated ?active area? of the lcd display.) 11 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation main menu controls adjust the menu items shown below by using the up and down buttons. control explanation auto image adjust sizes and centers the scr een image automatically. contrast adjusts the difference between the image backgrou nd (black level) and the foreground (white level). brightness adjusts background black level of the screen image. audio adjust volume increases the volume, decreases the volume, and mutes the audio. mute temporarily silences audio output. color adjust provides several color adjustment modes, including preset color temperatures and a user color mode which allows independent adjustment of red (r), green (g), and blue (b). the factory setting for this product is 6500k (6500 kelvin). 9300k- adds blue to the screen image for cooler white (used in most office settings with fluorescent lighting). 6500k- adds red to the screen image for warmer white and richer red. 5400k- adds green to the screen image for a darker color. 5000k- adds blue and green to the screen image for a darker color. user color individual adjustments for red (r ), green (g), and blue (b). 1. to select color (r, g or b) press button [2]. 2. to adjust selected color, press and . . important: if you select recall from the main menu wh en the product is set to a preset timing mode, colors return to the 6500k factory pr eset. 12 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation control explanation information displays the timing mode (video signal input) coming from the graphics card in the computer, the lcd model number, the serial number, and the viewsonic? website url. see your graphics card?s user guide for instructions on changing the resolution and refresh rate (vertical frequency). note: vesa 1440 x 900 @ 60hz (recommended) means that the resolution is 1440 x 900 and the refresh rate is 60 hertz. manual image adjust sub-menu h. size (horizontal size) adjusts the width of the screen image. h./v. position (horizon tal/vertical position) moves the screen image left or right and up or down. 13 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation control explanation fine tune sharpens the focus by aligning text and/or graphics with pixel boundaries. note: try auto image adjust first. sharpness adjusts the clarity and focu s of the screen image. setup menu displays the menu shown below: language select allows the user to choose the language used in the menus and control screens. resolution notice allows the user to enable or disable this notice. if you enable the resolution notice shown above and your computer is set at a resolution other than 1440 x 900, the following screen appears. 14 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation control explanation osd position allows the user to move the osd menus and control screens. osd timeout sets the length of time the osd screen is di splayed. for example, with a ?30 second? setting, if a control is not pushed within 30 seconds, the display screen disappears. osd background allows the user to turn the osd background on or off. memory recall returns the adjustments back to factory settings if the display is operating in a factory preset timing mode listed in the specifications of this manual. 15 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation 4. circuit description 16 confidential - do not copy va1912w- 2 _va1912wb-2 the tsum17ak is total solution graphics processing ic for lcd mon itors with panel resolutions up to sxga. it is configured with a high-speed integrated triple-adc/pll,, a high quality display processing engine, and an integrated output display interface t hat can support rsds panel interface format. to further reduce system co sts, the tsum17ak also integrates intelligent power management control capability for green-mode requirements an d spread- spectrum support for emi management. the tsum17ak incorporates the wo rld?s first coherent oversampled rgb graphics adc in a monitor controller system. the oversampling adc samples the input rgb signals at a frequency that is much higher than the signal source pixel rate. this can preserve details in the video signal that ordinarily would be lost due to input signal jitter or bandwidth limitations in non-o versampled systems. the tsum17ak also incorporates a new dynamic frame rate (dfr) generator for the digital output video to the display panel that preserves the advantages of a fixed output clock rate, while eliminating the output end of frame short-line. www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation 5. adjustment procedure a. function test and alignment procedure 1. all modes reset you should do ?all model reset? (refer to chap 3. hot ke ys for function controls) first. this action will allow you to erase all end-user?s settings and restore the factory defaults. 2. auto image adjust the auto adjust is aimed to offer a best screen quality by built-in asic. for optimum screen quality, the user has to adjust each function manually. a.turn the computer and lcd monitor on. b. press the ? auto ? button on monitor keypad to auto adjust. c. the lcd monitor will start the auto adjust process automatically and run for 10 consecutive seconds, during which time you will notice the image change. 3. firmware test patten: burn in model (refer to chap3. hot keys for function control) -make sure the f/w is the latest version. 4. dcc test patten: edid program -make sure it can pass test program. 5. window shut down test signal: 1280*1024@60hz test pattern: checkered pattern every one pixel (50%green & 50%blue) inspection item: flicker, mura 6. window bg test signal: 1280*1024@60hz test pattern: window standard pattern inspection item: line defect, function defect & mura 7. 25 gray test signal: 1280*1024@60hz test pattern: full screen 25% white (gray) inspection item: particle, line defect & mura 8. 50 gray test signal: 1280*1024@60hz test pattern: full screen 50% white (gray) inspection item: bright dot, pa rticle, line defect & mura 9. white box test signal: 1280*1024@60hz test pattern: window standard pattern inspection item: particle, line defect, power, image remain & mura 17 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation 10. black box test signal: 1280*1024@60hz test pattern: window standard pattern inspection item: bright dot, line defect & power 11. red test signal: 1280*1024@60hz test pattern: full screen red inspection item: bright dot, partial & line defect 12. green test signal: 1280*1024@60hz test pattern: full screen green inspection item: bright dot, partial & line defect 13. blue test signal: 1280*1024@60hz test pattern: full screen green inspection item: bright dot, partial & line defect 14. gray_scale_0-100_v64 test signal: 1280*1024@60hz test pattern: vertical 64 (256) gray scale (right left from 0 to 100% white) inspection item: line defect & function defect 15. function test display pattern item pattern description remark 1 gray_scale_0-100_v vertical 64 (256) gray scale (right left from 0 to 100% white) figure 1 2 gray_scale_0-100_h horizontal 64 (256) gray scale (up down from 0 to 100% white) figure 2 3 black full screen black figure 3 4 red full screen 50% red figure 4 5 green full screen 50% green figure 5 6 blue full screen 50% blue figure6 7 white full screen white figure7 8 black_tile black tile under white background figure 8 18 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation figure 1 figure 2 figure 3 figure 4 figure 5 figure 6 figure 7 figure 8 19 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation bios update procedure mstar isp tool user manual setp1: take the cable of print port to connect print port of pc and print port of fixture(and edid burn in the same fixture) to connec t vga cable between d-sub of fixture and d-sub of ad board of monitor the monitor must be turned on the power step 2 : open isp tool 20 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation step 3 : press ?connect? into isp mode display the model of flash the dialog of figure is displayed ?device type is pm25lv512? then press ? _ ? step 4: press ?read? then enter as below figure then press to down load the program of bios (*.bin) if down load bios that is succe ssful as below figure then press? _ ? 21 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation step 5 : press ?auto? into below figure that display the value of bios checksum below figure is displayed ?0x1626? then press ?run? to execute the bios procedure the bios procedure is displayed the message ?v erify ok? that the bios procedure is successful step 6 : press ?dis con? then leave the mode of isp 22 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation step 7 when select ?reconnect? and press ?run? th en repeat to connect the mode of isp into next the action of bios procedure 23 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation packing for shipping and disassembly procedure packing for shipping 1. packing procedure 1.1 paste protection film to protect the monitor. (figure 1) 1.2 put the monitor in the pe bag and seal the bag with tape. (figure 2) 1.3 put the cushions on the monitor. (figure 3) 1.4 place the monitor into the carton and then put all the accessories into the carton. as last, close the carton and seal it with tape. (figure 4) figure 1 figure 2 figure 3 figure 4 24 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
monitor assembly and disassembly 1 separate s tand assy 1.1 remove stand cover step 2 : remove the stand cover. step 5 : completed. step 3 : loose and remove 4 screws step 1 : remove the seat assy step4 : remove the stand assy viewsonic corporation 25 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
2 separate rear cover (rear case assy) separate bezel hooks to take bezel and rear cover apart. step 1 : loose and remove 2 screws. step 2 : separate bezel hooks to take beze l and rear cover apart. step 3 : remove rear cover. step 4 : completed. viewsonic corporation 26 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
3 remove power board and ad board 3.1 remove metal cover step 1 : remove ffc from osd board. step 2 : loose and remove 4 screws. step 4 : remove 2 pieces of backlight wires. step 3 : lift up lcd module and remove bezel. step 5 : remove 2 pieces of backlight wires. viewsonic corporation 27 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
step 6 : loose and remove 2 screws. step 7 : loose and remove 2 screws. step 8 : loose and remove 4 screws. step 9 : remove the pcba cover viewsonic corporation 28 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
3.2 remove power board and ad board step 1 : loose and remov e 4 screws. step 2 : remove lips board step 3 : remove 2 pieces of ffcs. step 4 : remove the ffc. step 5 : loose and remove 4 screws. viewsonic corporation 29 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
4 change new ad board and power board step 1 : place new ad board. and fasten 4 fixed screws. step 3 : insert ffc. step7 : completed. step 4 : insert 2 pieces of ffcs . step 6 : remove ad pcba. step 2 : fasten 4 fixed screws. viewsonic corporation 30 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
step 5 : insert new lips board . step 6 : fasten 4 fixed screws. step 7 : completed. viewsonic corporation 31 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
5. remove osd board step 1 : separate both audio cable. step 2 : take osd board apart. step 3: completed. viewsonic corporation 32 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
6.change new osd board 7. add cover to ad pcb heatsink step 1 : place new osd board. step 2 : insert audio cable to connectors of new osd board. step 1 : join the pcb cover. step 2 : fasten 4 fixed screws. step 3: completed. viewsonic corporation 33 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
step 3 : fasten 2 fixed screws step 4 : fasten 2 fixed screws. step 5 : insert 2 pieces of backlight wires. step 6 : insert 2 pieces of backlight. wires. step 7 : join lcd module and remove bezel. viewsonic corporation 34 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
8. rear assy & stand assembly step 10 : completed. step 1 : place rear cover. step 2 : fasten 2 fixed screws. step 3 : place the stand assy. step 8 : fasten 4 fixed screws. step 9 : insert ffc. viewsonic corporation 35 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
step 5 : join the stand cover. step 6 : join the seat assy step 7 : completed. step 4 : fasten 4 fixed screws. viewsonic corporation 36 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
37 viewsonic corporation confidential - do not copy va1912w- 2 _va1912wb-2 6. troubleshooting flow chart defect mode failure analysis repair testing flash dots bright dot dark dot backlight light leakage mura image sticking brightness spot particle dot defect check panel light on test next ste p ? panel change? should be performed to level 3 repair abnormal display test ng a completed image remain group bright dots others cosmetics defect panel change www.datasheet.net/ datasheet pdf - http://www..co.kr/
defect mode failure analysis repair testing check pcb a power on display abnormal flicker next ste p test ng a completed ad/b change cnt/b change inverter/b change power/b change check panel display noise beat display shut down beat display flicker no backlight display wave b panel change adapter change check adapter ? panel change? should be performed to level 3 repair check pcb a ad/b change power/b change cnt/b change check panel panel change viewsonic corporation 38 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
failure analysis repair testing gray scale display abnormal r.g.b display abnormal no signal display white out brightness even abnormal next ste p test ng completed b booting delay c beat display no backlight check pcb a ad/b change inverter/b change power/b change check panel check pcb a panel change power/b change inverter/b change cnt/b change ad/b change check pcb a vga cable dvi cable check wire check panel panel change osd/b change check pcb a adapter change check adapter ? panel change? should be performed to level 3 repair viewsonic corporation 39 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
defect mode failure analysis repair testing horizontal line defect vertical weak line peculiar smell check pcb a check panel horizontal weak line next ste p test ng ad/b change panel change horizontal band defect c vertical band defect power saving display abnormal check pcb a ad/b change inverter/b change power/b change check pcb a ad/b change ? panel change? should be performed to level 3 repair complete viewsonic corporation 40 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
defect mode failure analysis repair testing led of f no powe r led dark led abnormal led flicke r power on/off abnormal led display abnormal check pcba check wire ad/b change cnt/b change osd cable inverter/b power/b change osd/b change ac power change dc power cnt cable chan g e adapter change check adapter check pcba check wire osd cable inverter/b power/b change osd/b change dc power cnt cable chan g e adapter change ad/b change led loss turn off abnormal check pcba check wire next ste p test ng completed ? panel change? should be performed to level 3 repair viewsonic corporation 41 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
defect mode failure analysis repair testing abnormal bios &osd check pcb check wire ad/b change cnt/b change osd cable osd no display osd key unavailable osd can?t input osd can?t read osd jiggle osd display abnormal check bios inverter/b power/b change osd/b change d-sub cable vga cable dvi cable bios update abnormal louds p eake r check pcba check wire ad/b change cnt/b change no voice voice loss abnormal loud l/r abnormal l/r same volume check loudspeaker inverter/b change power/b change osd/b change osd cable change loudspeaker change loudspeaker noise ? panel change? should be performed to level 3 repair completed next ste p test ng viewsonic corporation 42 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
defect mode failure analysis repair testing display shut down check pcb a check panel display flicker ((tapping ) check pcba check panel ad/b change ad/b change power/b change panel change cnt/b change cnt/b change other abnormal display next ste p test ng complete tv function display abnormal ? panel change? should be performed to level 3 repair panel change check pcba check wire tv /b change av cable change remote controller change check controller dvi signal display abnormal check pcb check edid code ad/b change edid update viewsonic corporation 43 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
trouble shooting analysis check the information in this section to see if th e problems can be solved before requesting repair. note the consumers are only allowed to solve the problems described as below. any unauthorized product modification, or failure to follow instructions supplied with the product will end the warranty immediately. z no image ? make sure power button is on. ? check whether the lcd monitor and computer pow er cords are plugged and whether there is a supply of power. z no signal input ? check the signal connection between the computer and lcd monitor. z ?out of range? ? check the computer image output resolution a nd frequency and compare the value with the preset values (please refer to [appendix-display mode]). z fuzzy image ? adjust phase. z image too bright ? adjust brightness and contrast by osd. z image too dark ? adjust brightness and contrast by osd. z irregular image ? check the signal connection between the computer and lcd monitor. ? perform auto adjust. z distorted image ? reset the lcd monitor ? take off extra accessories (suc h as signal extension cord). z image is not centered ? use osd image menu to adjust h_position and v_position. ? check image size setting. ? perform auto adjust. z size is not appropriate ? use osd image menu to adjust h_position and v_position. ? check image size setting. ? perform auto adjust. z uneven color ? use osd color menu to adjust color setting. z color too dark ? use osd color menu to adjust color setting. z dark area distorted ? use osd color menu to adjust color setting. z white color is not white ? use osd color menu to adjust color setting. viewsonic corporation 44 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation 7. recommended spare parts list rev: 1b ite m ecr/ecn viewsonic p/n ref. p/n location universal number # q't y 1 accessories: power code, ul, svt#18/3c, 75c, lp-30b+ls-13, l=1830+/- 50mm, black, linetek, 18awg, no ba g , green i a-00000458 32e1818015 ( aj0a2t3a25 ) 1 2 pcba for , a190a2-a02-t, a190a2-a02-h-s1, 1206-04, rev.04, odm, green ii b-00005599 35-d005694 1 3 pcba for , a190a2-h, a190a2-h-k3, 106-02, rev.02, usi/itc, odm, green ii b-00005600 35-d005166 1 4 lips with audio, dac-12m030 a, ver:0f, 5 v/3 a, 12 v/0.7 a, i type, 7 ma, 1710 v, delta dongguan_inverter/delta jian g su _ ada p tor, rohs b-00006040 27-d003247 1 5 bezel assy, a190a2-h05, abs pa757n, silver(pantone877c), fukin g c-00004281 40-d004255 1 6 rear assy, a190a2-h05, abs pa757n, black(j91a11b5), fuking c-00004282 40-d004257 1 7 cover hinge, a190a2-h05, abs pa757n, black(j91a11b5), fukin g c-00004284 40-d004250 1 8 seat assy, a190a2-h05, abs pa757n, black(j91a11b5), hontech precisio n c-00004285 40-d004259 1 9 audio cable, a150x2, 18awg, 180cm, black, jce, green i cb-00000544 32f2818004 1 10 accessory cable, d-sub, black, johnson components & e q ui p ments, a150x2, green i cb-00004287 32f3018003 1 11 ffc, a190a2-h05, 15 pins, tennsure/young shin, l=108.5 cb-00004288 32-d004533 1 12 ffc, ffcx816, 36 pins, tennsure, package al_foil, green i i cb-00005742 32-d005773 1 13 label, pallet barcode label, 75x40, a190e2-h03, vsc, non green dc-00000586 7741999141 1 14 safety label for , a190a2-h05, 120 mmx50 mm, chang huang, vsc _ VA1912W-2, green i i dc-00005602 77-d008324 1 15 carton label for , a190a2-h05, 76.2 mmx76.2 mm, chang huang, vsc _ VA1912W-2, green i i dc-00005604 77-d008326 1 16 menu for a190e2-h05, complex, 1c, yi ching, vsc_va1912w- 2+caution card, green i i dc-00005606 76-d008373 ( aj0a2t3a25 ) 1 17 screw, m3, p=0.5 mm, l=4 mm, pan head, phillips cross recess, green i hw-00000554 42a9930008 2000 18 screw, m3*p1.27*12, 5.5*2, steel, green i hw-00000556 42a9990005 2000 19 screw, m4, p=0.7 mm, l=15 mm, pan head, phillips cross recess, green i hw-00000590 42a9930013 2000 20 screw, m4, p=0.7 mm, l=8 mm, round head, phillips cros s recess, plate color zn, screw_with_washer, shye ching/hama naka moto g awa, head d8, green i hw-00004042 42-d000649 2000 21 screw, m4, p=0 mm, l=11.8 mm, hexagon stand off, socket, green i hw-00006042 42a9940007 2000 22 miscellaneous: tape, security tape, opp, l900xw50x0.045mm, vsc, non green m-00000560 7345511002 1 23 bag, 570 mmx600 mmx0.13 mm, white, non gree n p-00000595 7841919921 1 24 cushion, a190a2-t05, eps, white, 450 mmx160 mmx145 mm, sin g home, ps foam ( left ) , green i i p-00004295 78-d004392 1 25 cushion, a190a2-t05, eps, white, 450 mmx160 mmx145 mm, sin g home, ps foam ( ri g ht ) , green i i p-00004296 78-d004388 1 26 carton, a190a2-h05, 538 mmx158 mmx470 mm, chen ti paper, vsc _ VA1912W-2, green i i p-00005607 78-d008325 1 remark 1: above listed items are examples, supplier can expand the rows to add more necessary items. remark 2: all revised rspls with newly added items or any change made should be highlighted and correlated with the ecn/ecr approved by viewsonic corporation. cabinets: cables: documentation: hardware: packing material: recommended spare parts list (VA1912W-2) description serial no. prefix: q90 pc board assembly: viewsonic model number: vs10866 45 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic model number: vs10866 serial no. prefix: qbm rev: 1a item description ecr/ecn viewsonic p/n ref. p/n location universal number# q'ty 1 accessories: power cord 0.75mm2, 3c, a-00002058 32e1818013 1 2 audio board (rev.02) b-00005600 35-d005166 1 3 power supply board, ver:0f b-00006039 27-d003247 1 4 main board - a190a2-a02-t, a190a2-a02-t-s1,rev.04 b-00006727 35-d008185 1 5 front panel, bezel assy c-00004276 40-d004254 1 6 back cover c-00004277 40-d004253 1 7 cover hinge c-00004279 40-d004258 1 8 base assembly c-00004280 40-d004256 1 9 audio cable, a150x2, 18awg, 180cm, black cb-00000544 32f2818004 1 10 accessory cable, d-sub cb-00004287 32f3018003 1 11 flat cable, (ffc, a190a2-h05) cb-00004288 32-d004533 1 12 flat cable ffcx816,36 cb-00005742 32-d005773 1 13 safety label 120 mmx50 mm ver.3 dc-00008016 77-d012194 1 14 carton label 76.2 mmx76.2 mm dc-00008020 77-d011732 1 15 sn label 50 mmx25 mm dc-00008021 77-d011737 1 16 user's guide menu complex, 1c dc-00008022 76-d011747 1 17 screw, m3, p=0.5 mm, l=4 mm hw-00000553 42a9930008 2000 18 screw, m3*p1.27*12, 5.5*2, steel hw-00000556 42a9990005 2000 19 screw, m4, p=0.7 mm, l=15 mm hw-00000590 42a9930013 2000 20 screw, m4, p=0.7 mm, l=8 mm hw-00004042 42-d000649 2000 21 screw, m4, p=0 mm, l=11.8 mm hw-00006041 42a9940007 2000 22 miscellaneous: tape, security tape, opp, l900xw50x0.045mm m-00000560 7345511002 1 23 pe bag, 570 mmx600 mmx0.13 mm p-00000595 7841919921 1 24 foam (left) p-00004295 78-d004392 1 25 foam (right) p-00004296 78-d004388 1 26 generic foam set p-00001347 30833 27 generic box p-00002515 20653 28 craft box 538 mmx158 mmx470 mm p-00008015 78-d011688 1 remark 1: remark 2: documentation: hardware: packing material: all revised rspls with newly added items or any change made should be highlighted and correlated with the ecn/ecr approved by v iewsonic corporation. this is to eliminate repeated cross checks of each item between this version and prior versions. above listed items are examples, supplier can expand the rows to add more necessary items. recommended spare parts list (va1912wb-2) pc board assembly: cabinets: cables: 46 confidential - do not copy va1912w- 2 _va1912wb-2 viewsonic corporation www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic model number: vs10866 rev: 1b serial no. prefix: q90 item viewsonic p/n ref. p/n description location universal number# q'ty 1 e-00005747 mj0a10ak01 19" wide semi product,a190a2,1440x900,tn 1 2 n/a 36x8636401 driver ic,scan,hx8636apd400(tsmc),300channel,,rohs,green i 3 3 n/a l3j009xxxx 19" wide ps tn asahi 0.7mm glass cr bm(panel base) 1 4 n/a 74-d002212 polarizer,tft,degree 135,414 mmx259.7 mmx0.215 mm,nwf-leseg,m190a1,green i 1 5 n/a 74-d002213 polarizer,cf,degree 135,415.84 mmx262.15 mmx0.215 mm,nwf- lesegags1,m190a1,green i 1 6 n/a 73-c000047 acf,cog,ac-8405z-23 1.5mmx100m,100000 mmx1.5 mm,cog-acf,green i 0.00168 7 n/a 7344191017 acf,ac-4251fy-16,100m/rl,green i 0.0044 8 n/a 36-d002378 driver ic,cof,data,m190a1-l01,hx8018-a050cbak,reel,6 bit,432channel,rohs,green i 10 9 n/a 73-d002676 acf,pcb,ac-9825r-35,100000 mmx1.5 mm,pcb-acf,green i 0.0044 10 n/a 35-d004361 pcba for ,a190a2-h,a190a2-a02-h-x,1206-01,rev.01,green i 1 11 n/a 7349951002 silicone,toray/-9187l,330g 0.4 12 hw-00000533 42a9930008 screw,m3,p=0.5 mm,l=4 mm,pan head,phillips cross recess,green i 16 13 hw-00006041 42a9940007 screw,m4,p=0 mm,l=11.8 mm,hexagon stand off,socket,green i 2 14 n/a 41-d000643 metal frame front,m190a1-l01/a190a2/m190a1-l03,secc 0.6t,19"wide 1 15 hw-00004042 42-d000649 screw,m4,p=0.7 mm,l=8 mm,round head,phillips cross recess,plate color zn,screw_with_washer,head d8,green i 1 16 n/a 73-d002886 conductive tape,pet+adhesive,409 mmx58.55 mmx0.05 mm,mylar_cover_pcbax_a190a2,green i 1 17 b-00006039 27-d003247 lips with audio,dac-12m030 a,ver:0f,5 v/3 a,12 v/0.7 a,i type,7 ma,1710 v,rohs 1 18 n/a 44-d003584 backlight unit,a190a2,green i 1 19 c-00005686 41-d003772 cover ad assy,a190a2,secc,without dvi-d hole,green ii 1 20 b-00005599 35-d005694 pcba for ,a190a2-a02-t,a190a2-a02-h-s1,1206-04,rev.04,odm,green ii 1 21 cb-00005742 32-d005773 ffc,ffcx816,36 pins,package al_foil,green ii 2 22 cb-00000544 32f2818004 audio cable,a150x2,18awg,180cm,black,jce,green i 1 23 cb-00004287 32f3018003 accessory cable,d-sub,black,a150x2,green i 1 24 a-00002058 32e1818013 power cord,ccc,300/500v,0.75mm2,3c,pc-323+coc-01,l=1830+/- 50mm,black,linetek,18awg,no bag,green i 1 25 hw-00000590 42a9930013 screw,m4,p=0.7 mm,l=15 mm,pan head,green i 4 26 hw-00000555 42a9930014 screw,m3*p0.5*6,green i 4 27 hw-00000556 42a9990005 screw,m3*p1.27*12, 5.5*2,steel,green i 2 28 c-00004284 40-d004250 cover hinge,a190a2-h05,abs pa757n,black(j91a11b5) 1 29 c-00004282 40-d004257 rear assy,a190a2-h05,abs pa757n,black(j91a11b5) 1 30 c-00004281 40-d004255 bezel assy,a190a2-h05,abs pa757n,silver(pantone877c) 1 31 cb-00004288 32-d004533 ffc,a190a2-h05,15 pins,l=108.5 1 32 b-00005600 35-d005166 pcba for ,a190a2-h,a190a2-h-k3,106-02,rev.02,odm,green ii 1 33 c-00004283 40-d004252 stand assy,a190a2-h05,abs pa757n,black(j91a11b5) 1 34 pl-00006048 73-d005900 panel protector film,a190a2-h05,xg-536 t=0.1,with_print,green ii 1 35 dc-00005602 77-d008324 safety label for ,a190a2-h05,120 mmx50 mm,vsc_VA1912W-2,green ii 1 36 n/a 77-d008330 sn label for ,a190a2-h05,50 mmx25 mm,vsc_VA1912W-2 for china,green ii 1 37 hw-00002076 7841595111 corner protector,paper,50 mmx50 mmx1850 mm,green i 1 38 n/a 7841595191 separator, (aa),1120*820*11mm,a150x2-t01,non green 0.025 39 p-00000595 7841919921 bag,570 mmx600 mmx0.13 mm,white,non green 1 40 dc-00000586 7741999141 label,pallet barcode label,75x40,a190e2-h03,vsc,non green 0.021 41 m-00000560 7345511002 tape,security tape,opp,l900xw50x0.045mm,vsc,non green 0.3 42 n/a 77-d000114 customer label,a170e1-h0g,180 mm,100 mm,green i 1 43 n/a 77-d000118 customer label,a170e1-h0g,130 mm,80 mm,green i 1 44 n/a 78-d000275 warranty card,a170e1-h0g,143 mmx210 mm,vsc_va712,green i 1 45 dc-00005603 77-d000576 carton label for ,a190e2-h06,20 mmx20 mm,vsc_va912_for europe,green i 1 46 n/a 77-d001323 customer label for ,a170e1-h0g,15 mmx15 mm,qc pass label_vsc_for china,green i 1 47 n/a 78-d001492 pallet,a150x2-t01,wooden,1150 mmx840 mmx138 mm,green i 0.02 48 c-00004285 40-d004259 seat assy,a190a2-h05,abs pa757n,black(j91a11b5) 1 49 p-00004295 78-d004392 cushion,a190a2-t05,eps,white,450 mmx160 mmx145 mm,ps foam (left),green ii 1 50 p-00004296 78-d004388 cushion,a190a2-t05,eps,white,450 mmx160 mmx145 mm,ps foam (right),green ii 1 51 n/a 79-d004425 shipping package information for ,a190a2-h05,viewsonic 1 52 dc-00005604 77-d008326 carton label for ,a190a2-h05,76.2 mmx76.2 mm,vsc_VA1912W-2,green ii 1 53 p-00005607 78-d008325 carton,a190a2-h05,538 mmx158 mmx470 mm,vsc_VA1912W-2,green ii 1 54 dc-00005605 76-d008375 menu for a190e2-h05,complex,1c,vsc_VA1912W-2,cd-rom,green ii 1 bom list (VA1912W-2) 47 confidential - do not copy va1912w- 2 _va1912wb-2 viewsonic corporation www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic model number: vs10866 rev: 1a serial no. prefix: qbm item viewsonic p/n ref. p/n description location universal number# q'ty 1 e-00005747 mj0a10ak01 19" wide semi product, a190a2, 1440x900, tn 1 2 n/a 36x8636401 driver ic, scan, hx8636apd400(tsmc), 300channel, , rohs, green i 3 3 n/a l3j009xxxx 19" wide ps tn asahi 0.7mm glass cr bm(panel base) 1 4 n/a 74-d002212 polarizer, tft, degree 135, 414 mmx259.7 mmx0.215 mm, nwf-leseg, m190a1, green i 1 5 n/a 74-d002213 polarizer, cf, degree 135, 415.84 mmx262.15 mmx0.215 mm, nwf-lesegags1, m190a1, green i 1 6 n/a 73-c000047 acf, cog, ac-8405z-23 1.5mmx100m, 100000 mmx1.5 mm, cog-acf, green i 0.00168 7 n/a 7344191017 acf, ac-4251fy-16, 100m/rl, green i 0.0044 8 n/a 36-d002378 driver ic, cof, data, m190a1-l01, hx8018- a050cbak, reel, 6 bit, 432channel, rohs, green i 10 9 n/a 73-d002676 acf, pcb, ac-9825r-35, 100000 mmx1.5 mm, hitachi chemical( ), pcb-acf, green i 0.0044 10 n/a 35-d004361 pcba for , a190a2-h, a190a2-a02-h-x, 1206-01, rev.01, green i 1 11 n/a 7349951002 silicone, toray/-9187l, 330g 0.4 12 n/a pj0aft0q04 olympic, 19"w, function bom, d-sub+audio, morning star, tsum17ak 1 13 hw-00000553 42a9930008 screw, m3, p=0.5 mm, l=4 mm, pan head, phillips cross recess, green i 16 14 hw-00006041 42a9940007 screw, m4, p=0 mm, l=11.8 mm, hexagon stand off, socket, green i 2 15 n/a 41-d000643 metal frame front, m190a1-l01/a190a2/m190a1- l03, secc 0.6t, 19"wide 1 16 hw-00004042 42-d000649 screw, m4, p=0.7 mm, l=8 mm, round head, phillips cross recess, plate color zn, screw_with_washer, head d8, green i 1 17 n/a 73-d002886 conductive tape, pet+adhesive, 409 mmx58.55 mmx0.05 mm, mylar_cover_pcbax_a190a2, green i 1 18 b-00006039 27-d003247 lips with audio, dac-12m030 a, ver:0f, 5 v/3 a, 12 v/0.7 a, i type, 7 ma, 1710 v, rohs 1 19 n/a 44-d003584 backlight unit, a190a2, green i 1 20 c-00005686 41-d003772 cover ad assy, a190a2, secc, without dvi-d hole, green ii 1 21 b-00006727 35-d008185 pcba for , a190a2-a02-t, a190a2-a02-t-s1, 1208- 05, rev.04, green ii 1 22 cb-00005742 32-d005773 ffc, ffcx816, 36 pins, package al_foil, green ii 2 23 n/a pj0eacs000 olympic, 19", accessory bom, d-sub+audio, china 3 pin, black, power built-in;rohs 1 24 cb-00000544 32f2818004 audio cable, a150x2, 18awg, 180cm, black, jce, green i 1 25 cb-00004287 32f3018003 accessory cable, d-sub, black, a150x2, green i 1 26 a-00002058 32e1818013 power cord, ccc, 300/500v, 0.75mm2, 3c, pc- 323+coc-01, l=1830+/-50mm, black, linetek, 18awg, no bag, green i 1 27 n/a pj0ai15100 olympic, 19"w, id bom, d-sub+audio, china, black, vsc, va1912wb-2 1 28 hw-00000590 42a9930013 screw, m4, p=0.7 mm, l=15 mm, pan head, green i 4 29 hw-00000555 42a9930014 screw, m3*p0.5*6, green i 4 30 hw-00000556 42a9990005 screw, m3*p1.27*12, 5.5*2, steel, green i 2 31 c-00004279 40-d004258 cover hinge, a190a2-h05, abs pa757n, green i 1 32 c-00004277 40-d004253 rear assy, a190a2-h05, abs pa757n, green i 1 33 c-00004276 40-d004254 bezel assy, a190a2-h05, abs pa757n, green i 1 34 cb-00004288 32-d004533 ffc, a190a2-h05, 15 pins, l=108.5 1 35 b-00005600 35-d005166 pcba for , a190a2-h, a190a2-h-k3, 106-02, rev.02, odm, green ii 1 36 c-00004278 40-d004251 stand assy, a190a2-h05, abs pa757n, green i 1 37 pl-00006048 73-d005900 panel protector film, a190a2-h05, xg-536 t=0.1, with_print, green ii 1 38 dc-00008016 77-d012194 safety label for , a190a2-h05, 120 mmx50 mm, va1912wb ver.3, green ii 1 39 dc-00008021 77-d011737 sn label for , a190a2-h05, 50 mmx25 mm, _va1912wb-2 for analog for china, green ii 1 40 hw-00002076 7841595111 corner protector, paper, 50 mmx50 mmx1850 mm, green i 1 41 n/a 7841595191 separator, (aa), 1120*820*11mm, a150x2-t01, non green 0.025 42 p-00000595 7841919921 bag, 570 mmx600 mmx0.13 mm, white, non green 1 bom list (va1912wb-2) 48 confidential - do not copy va1912w- 2 _va1912wb-2 viewsonic corporation www.datasheet.net/ datasheet pdf - http://www..co.kr/
item viewsonic p/n ref. p/n description location universal number# q'ty 43 dc-00000586 7741999141 label, pallet barcode label, 75x40, a190e2-h03, vsc, non green 0.021 44 m-00000560 7345511002 tape, security tape, opp, l900xw50x0.045mm, vsc, non green 0.3 45 n/a 77-d000114 customer label, a170e1-h0g, 180 mm, 100 mm, green i 1 46 n/a 77-d000118 customer label, a170e1-h0g, 130 mm, 80 mm, green i 1 47 n/a 78-d010933 warranty card, a170e1-h0g, 143 mmx210 mm, va712 ver.2, green ii 1 48 dc-00008020 77-d011732 carton label for , a190a2-h05, 76.2 mmx76.2 mm, va1912wb-2 for analog, green ii 1 49 n/a 77-d000114 customer label for , a170e1-h0g, , green iva712 ver.2, green ii 1 50 n/a 78-d001492 pallet, a150x2-t01, wooden, 1150 mmx840 mmx138 mm, green i 0.02 51 c-00004280 40-d004256 seat assy, a190a2-h05, abs pa757n, green i 1 52 p-00004295 78-d004392 cushion, a190a2-t05, eps, white, 450 mmx160 mmx145 mm, ps foam (left), green ii 1 53 p-00004296 78-d004388 cushion, a190a2-t05, eps, white, 450 mmx160 mmx145 mm, ps foam (right), green ii 1 54 n/a 79-d004425 shipping package information for , a190a2-h05, viewsonic 1 55 p-00008015 78-d011688 carton, a190a2-h05, 538 mmx158 mmx470 mm, va1912wb-2 for analog, green ii 1 56 dc-00008022 76-d011747 menu for a190a2-h05, complex, 1c, va1912wb-2, green ii 1 49 confidential - do not copy va1912w- 2 _va1912wb-2 viewsonic corporation www.datasheet.net/ datasheet pdf - http://www..co.kr/
model title date rev: viewsonic corporation 8. exploded diagram and exploded parts list viewsonic corporation viewsonic model number: vs10866 rev: 1b serial no. prefix: q90 item viewsonic p/n ref. p/n description q'ty 1 n/a 44-d003584 backlight unit 1 2 n/a l3j009xxxx panel assy 1 3 n/a 41-d000643 backlight front cover 1 4 hw-00000533 42a9930008 screw m3*4l 2 5 b-00006039 27-d003247 power pcb assy 1 6 b-00005599 35-d005694 ad pcb assy 1 7 hw-00000533 42a9930008 screw m3*4l 7 8 c-00005686 41-d003772 ad cover 1 9 c-00004281 40-d004255 bezel assy 1 10 c-00004282 40-d004257 rear assy 1 11 n/a 42a9230001 screw d3*8l 4 12 c-00004283 40-d004252 stand assy 1 13 c-00004284 40-d004250 cover hinge 1 14 c-00004285 40-d004259 seat assy 1 exploded parts list (VA1912W-2) exploded parts list (va1912wb-2) viewsonic model number: vs10866 rev: 1a serial no. prefix: qbm item viewsonic p/n ref. p/n description q'ty 1 n/a 44-d003584 backlight unit 1 2 n/a l3j009xxxx panel assy 1 3 n/a 41-d000643 backlight front cover 1 4 hw-00000553 42a9930008 screw m3*4l 2 5 b-00006039 27-d003247 power pcb assy 1 6 b-00005599 35-d005694 ad pcb assy 1 7 hw-00000553 42a9930008 screw m3*4l 7 8 c-00005686 41-d003772 ad cover 1 9 c-00004281 40-d004255 bezel assy 1 10 c-00004282 40-d004257 rear assy 1 11 n/a 42a9230001 screw d3*8l 4 12 c-00004283 40-d004252 stand assy 1 13 c-00004284 40-d004250 cover hinge 1 14 c-00004285 40-d004259 seat assy 1 50 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation viewsonic model number: vs10866 rev: 1b item viewsonic p/n ref. p/n location q'ty 1 n/a VA1912W-2 lcd monitior 1 2 p-00000595 7841919921 pe foam bag 1 3 p-00004295 78-d004392 ps foam (left) 1 4 p-00004296 78-d004388 ps foam(right) 1 5 n/a different region (refer to bom) carton 1 6 n/a different region (refer to bom) power cord 1 7 n/a different region (refer to bom) power cord 1 8 cb-00004287 32f3018003 monitor cable 1 9 cb-00000544 32f2818004 audio cable 1 10 n/a n/a dvi cable (n/a) 1 11 n/a different region (refer to bom) menu (quick setup) 1 12 n/a different region (refer to bom ) menu (cd-rom) 1 13 n/a different region (refer to bom) warranty registration card 1 14 c-00004285 40-d004259 seat 1 15 n/a different region (refer to bom) customer label 1 packing part list ( VA1912W-2 ) viewsonic model number: vs10866 rev: 1a item viewsonic p/n ref. p/n description q'ty 1 n/a VA1912W-2 lcd monitior 1 2 p-00000595 7841919921 pe foam bag 1 3 p-00004295 78-d004392 ps foam (left) 1 4 p-00004296 78-d004388 ps foam(right) 1 5 n/a different region (refer to bom) carton 1 6 n/a different region (refer to bom) power cord 1 7 n/a different region (refer to bom) power cord 1 8 cb-00004287 32f3018003 monitor cable 1 9 cb-00000544 32f2818004 audio cable 1 10 n/a n/a dvi cable (n/a) 1 11 n/a different region (refer to bom) menu (quick setup) 1 12 n/a different region (refer to bom ) menu (cd-rom) 1 13 n/a different region (refer to bom) warranty registration card 1 14 c-00004285 40-d004259 seat 1 15 n/a different region (refer to bom) customer label 1 packing part list ( va1912wb-2 ) 51 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation 9. block diagram osd key pad / audio out d-sub analog video speaker ac power ldo main board lips backlight lcd module dc-5v 5v signal audio in dc-12v 12v 3.3v 52 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
v18c right clk+ auto clk- panel_on/off v33c inv_on/off v5a_esd inv_on/off bsth stb pol cpv stv oe gvoff bg2n bg2p bg1n bg1p bg0n bg0p bb2n bb2p bb1n bb1p bb0n bb0p fr2n fr2p br2n fr1n br2p fr1p br1n fr0n br1p fr0p fg2n br0n fg2p br0p fg1n fg1p fg0n fg0p fb2n fb2p fb1n fb1p fb0n fb0p fckn fckp fsth bckn bckp inv_adj vol_adj audio_on audiol+ audiol- audior+ v5a led_gl power left turbo led_or menu audior- v12a dcdc_on/off dcdc_on/off v12a v5a panel_on/off vcm_pwm v33p v33p aud_det inv_adj b- b+ g- g+ r- r+ ddcd_dat ddcd_clk vsync hsync gndb bin gndg gin gndr rin ddca_dat ddca_clk vcm_pwm vol_adj aud_det sog vga_5v dvi_5v dsub_det v12a vref b8 panel_interface stb pol gvoff stv oe cpv v33p v12a v5a br2n br2p br1n br1p br0n br0p bg2n bg2p bg1n bg1p bg0n bg0p bb2n bb2p bb1n bb1p bb0p bb0n fr2n fr2p fr1n fr1p fr0n fr0p fg2n fg2p fg1n fg1p fg0n fg0p fb2n fb2p fb1n fb1p fb0n fb0p fckn fckp fsth bckn bckp bsth vcm_pwm dcdc_on/off panel_on/off inverter i/f b2 v12a inv_adj inv_on/off v33c v5a vol_adj audio_on audior- audior+ audiol- audiol+ aud_det led_gl b3 vga rin gin bin vsync gndr gndg gndb ddca_dat ddca_clk hsync v5a v5a_esd sog vga_5v dsub_det b6 scaler r- br1n rin gndr gin gndg bin gndb hsync vsync g+ r+ g- b+ b- clk+ clk- inv_adj vol_adj v18c v33c br2p br1p br0n br0p bg2n bg2p bg1n bg1p bg0n bg0p bb2n bb2p bb1n bb1p bb0n bb0p fr2n fr2p br2n led_or led_gl turbo menu left right auto power ddcd_dat ddcd_clk ddca_dat ddca_clk bsth audio_on inv_on/off dcdc_on/off panel_on/off vcm_pwm aud_det stb v5a fr1n fr1p fr0n fr0p fg2n fg2p fg1n fg1p fg0n fg0p fb2n fb2p fb1n fb1p fb0n fb0p fckn bckp bckn fsth fckp pol cpv stv oe gvoff sog dsub_det dvi_5v vctrl v12a vref b5 power v5a v18c v33c v33p dvi_5v vga_5v vctrl vref b4 dvi g+ r+ b- r- b+ g- clk+ clk- v5a v5a_esd ddcd_dat ddcd_clk dvi_5v osd b1 led_gl power auto left right menu turbo led_or audior- audior+ audiol- audiol+ v33c viewsonic corporation model title date rev: viewsonic corporation 53 confidential - do not copy va1912w- 2 _va1912wb-2 s y s t e m d i a g r a m www.datasheet.net/ datasheet pdf - http://www..co.kr/
fb0n fb0p fb1n fb1p fb2n fb2p fg0n fg0p fg1n fg1p fg2n fg2p fr0n fr0p fr1n fr1p fr2n fr2p bb0n bb0p bb1n bb1p bb2n bb2p bg0n bg0p bg1n bg1p bg2n bg2p br0n br0p br1n br1p br2n br2p fckp fckn bckp bckn bsth fsth gvoff stb stv cpv oe pol sar1 sar2 led_gl led_or dcdc_on/off gndr rin gndg gin gndb bin sog vsync hsync ddca_clk r+ r- g+ g- b+ b- clk+ clk- ddcd_dat sar2 sar2 sar1 ddca_dat ddcd_clk wp wp wp dvi dsub dsub dvi fb0n fb0p fb1n fb1p fb2n fb2p fg0n fg0p fg1n fg1p fg2n fg2p fr0n fr0p fr1n fr1p fr2n fr2p bb0n bb0p bb1n bb1p bb2n bb2p bg0n bg0p bg1n bg1p bg2n bg2p br0n br0p br1n br1p br2n br2p fckp fckn bckp bckn bsth fsth gvoff stb stv cpv oe pol aud_det vcm_pwm panel_on/off inv_on/off inv_adj led_gl led_or vol_adj dcdc_on/off gndr rin gin gndg bin gndb sog vsync hsync ddca_dat ddca_clk r+ r- g+ g- b+ b- clk+ clk- ddcd_dat ddcd_clk v33c v18c v5a audio_on right power auto left menu turbo vctrl auto power menu left right turbo v12a dvi_5v dsub_det vref avdd vddc vdpp avdd vpll vdvi vmpll gnd gnd gnd vdpp vmpll vdvi gnd vpll gnd avdd gnd vddc vcc18 vcc33 vcc33 vcc33 vcc33 vcc33 vcc33 v5a v5a gnd vcc33 gnd vcc33 gnd gnd vcc33 gnd gnd gnd gnd gnd gnd gnd gnd gnd gnd vcc33 gnd vcc33 gnd gnd gnd close to respective power pins close to respective power pins close to respective power pins close to respective power pins close to respective power pins close to respective power pins menu turbo right +left +power 1.77v 1.24v 0.47v auto voltage pin 0.47v power 1.77v left right 1.24v sr1(1.77) sr2(0.93) need to modify, the sar is 6 bits and the max voltage is 1.8v c89 0603/100n/25v/7 c89 0603/100n/25v/7 r114 0603/10k/5% r114 0603/10k/5% y1 14.31818mhz y1 14.31818mhz c74 1206/10u/16v/x/pbf c74 1206/10u/16v/x/pbf c59 0603/100n/25v/7 c59 0603/100n/25v/7 r108 0603/10k/5% r108 0603/10k/5% tp 1 vddc1 vddc1 c87 0603/100n/25v/7 c87 0603/100n/25v/7 r112 0603/10k/5%/open r112 0603/10k/5%/open r118 r0603/open r118 r0603/open c55 1206/10u/16v/x/pbf c55 1206/10u/16v/x/pbf c66 0603/100n/25v/7 c66 0603/100n/25v/7 c75 0603/100n/25v/7 c75 0603/100n/25v/7 1 2 l13 l13 c91 0603/100n/25v/7 c91 0603/100n/25v/7 r214 0603/0r/5%/open r214 0603/0r/5%/open c84 1206/4.7u/16v/y c84 1206/4.7u/16v/y c90 0603/100n/25v/7 c90 0603/100n/25v/7 c81 0603/100n/25v/7 c81 0603/100n/25v/7 r113 0603/10k/5% r113 0603/10k/5% c78 1206/10u/16v/x/pbf c78 1206/10u/16v/x/pbf r213 0603/0r/5%/open r213 0603/0r/5%/open c80 1206/10u/16v/x/pbf c80 1206/10u/16v/x/pbf rin0p 59 gin0p 56 sogin0 57 bin0p 54 rin0n 58 gin0n 55 bin0n 53 hsync0 63 vsync0 64 rext 51 refp 62 refm 61 sdo 70 sck 72 scz 71 sdi 73 gpio_p27/pwm1 79 pwm1/gpio_p25 21 nc/lvackm/nc 108 xin 32 xout 33 ra1p/lva2p/ra2 109 ra1n/lva2m/ra3 110 ra2p/lva1p/ra4 111 ra2n/lva1m/ra5 112 ra3p/lva0p/ra6 113 ra3n/lva0m/ra7 114 clkap/lvb3p/lhsync 118 clkan/lvb3m/lvsync 119 clkbp/lvbckp/lck_odd 120 clkbn/lvbckm/lde 121 nc/lvb2p/nc 122 nc/lvb2m/nc 123 bb1p/lvb1p/bb2 124 bb1n/lvb1m/bb3 125 bb2p/lvb0p/bb4 126 bb2n/lvb0m/bb5 127 nc/lvackp/nc 107 ga3n/lva3m/ga7 106 ga3p/lva3p/ga6 105 gnd 41 gnd 47 rx2p 39 rx2n 40 rx1p 42 rx1n 43 avdd_dvi 44 rx0p 45 rx0n 46 rxckp 48 rxckn 49 gnd 38 gnd 96 gnd 116 vddp 67 vddc 12 mode[1] 104 mode[0] 102 vctrl 11 vddp 14 vdd_otp 68 ddca_sda/rs232_tx 65 ddca_scl/rs232_rx 66 ddcd_sda 36 ddcd_scl 37 pwm0/gpio_p26 29 avdd_dvi 50 vddc 97 gpio_p15/pwm0 69 pwm2/gpio_p24 78 gpio_p12 20 rstn 22 gpio_p00/sar1 23 gpio_p01/sar2 24 gpio_p06 27 gpio_p07 28 gpio_p13 30 gpio_p14 31 gpio_p16/pwm2 35 ddcrom_sda 76 ddcrom_scl 77 rst 19 ga2p/nc/ga4 100 ga2n/nc/ga5 101 ga1p/nc/ga2 98 ga1n/nc/ga3 99 ba3p/nc/ba6 93 ba3n/nc/ba7 94 ba2p/nc/ba4 91 ba2n/nc/ba5 92 ba1p/nc/ba2 89 ba1n/nc/ba3 90 rb1p/nc/rb2 9 rb1n/nc/rb3 10 rb2p/nc/rb4 15 rb2n/nc/rb5 16 rb3p/nc/rb6 17 rb3n/nc/rb7 18 gb1p/nc/gb2 2 gb1n/nc/gb3 3 gb2p/nc/gb4 5 gb2n/nc/gb5 6 gb3p/nc/gb6 7 gb3n/nc/gb7 8 bb3p/nc/bb6 128 bb3n/nc/bb7 1 esp 80 osp 81 gpo0 88 gpo1 87 gpo2 86 gpo3 85 gpo4 84 gpo5 83 gpo6 82 gpio_p02/sar3 25 gpio_p03 26 gpio_p22 75 gpio_p23 74 avdd_pll 52 avdd_mpll 34 avdd_mpll 4 vddp 95 vddp 103 vddp 115 vddc 117 avdd_adc 60 gnd 13 tsum57ak u1 tsum57ak u1 c92 0603/100n/25v/7 c92 0603/100n/25v/7 r201 0603/10m/5%/rohs/open r201 0603/10m/5%/rohs/open r200 0603/10m/5%/rohs/open r200 0603/10m/5%/rohs/open c56 0603/100n/25v/7 c56 0603/100n/25v/7 c77 0603/100n/25v/7 c77 0603/100n/25v/7 r110 0603/100r/5% r110 0603/100r/5% c79 0603/100n/25v/7 c79 0603/100n/25v/7 tp 1 vpll1 vpll1 c68 0603/100n/25v/7 c68 0603/100n/25v/7 1 2 l10 l10 r105 0603/100r/5% r105 0603/100r/5% r107 0603/10k/5% r107 0603/10k/5% c152 0805/10u/6.3v/5/open c152 0805/10u/6.3v/5/open r124 0603/390r/1% r124 0603/390r/1% c93 0603/22p/50v/n c93 0603/22p/50v/n r209 open/r0603 r209 open/r0603 c70 0603/10n/25v/7/rohs c70 0603/10n/25v/7/rohs tp 1 vdpp1 vdpp1 tp 1 gpo51 gpo51 r109 0603/10k/5% r109 0603/10k/5% r115 0603/10k/5% r115 0603/10k/5% r116 0603/10k/5% r116 0603/10k/5% r127 0603/20k/1%/open r127 0603/20k/1%/open r138 0603/23.2k/1%/open r138 0603/23.2k/1%/open c94 0603/22p/50v/n c94 0603/22p/50v/n r111 0603/10k/5% r111 0603/10k/5% c85 0603/100n/25v/7 c85 0603/100n/25v/7 r67 0603/12.1k/1%/open r67 0603/12.1k/1%/open 1 2 l12 hcb2012kf-420t40 l12 hcb2012kf-420t40 r212 0603/1k/5% r212 0603/1k/5% 1 2 l14 l14 c65 1206/10u/16v/x/pbf c65 1206/10u/16v/x/pbf c76 1206/10u/16v/x/pbf c76 1206/10u/16v/x/pbf r140 0603/3.3k/1%/open r140 0603/3.3k/1%/open c58 0603/100n/25v/7 c58 0603/100n/25v/7 c86 0603/100n/25v/7 c86 0603/100n/25v/7 1 2 3 q7 mmbt3904-f q7 mmbt3904-f c88 0603/100n/25v/7 c88 0603/100n/25v/7 r117 0603/100r/5% r117 0603/100r/5% tp 1 vmpll1 vmpll1 ce# 1 sdo 2 wp# 3 vss 4 sdi 5 sck 6 hold# 7 vdd 8 u2 pm25lv512 u2 pm25lv512 r101 0603/100r/5% r101 0603/100r/5% tp 1 sar11 sar11 tp 1 avdd1 avdd1 r100 0603/100r/5% r100 0603/100r/5% r128 0603/23.2k/1%/open r128 0603/23.2k/1%/open c67 0603/100n/25v/7 c67 0603/100n/25v/7 r137 0603/20k/1%/open r137 0603/20k/1%/open c150 0805/10u/6.3v/5/open c150 0805/10u/6.3v/5/open vcc 8 a1 2 wp 7 scl 6 sda 5 gnd 4 a2 3 a0 1 u7 at24c16an-10su-2.7/rohs u7 at24c16an-10su-2.7/rohs tp 1 vdvi1 tp vdvi1 tp r119 r0603/open r119 r0603/open r103 0603/100r/5% r103 0603/100r/5% r210 0603/30k/5% r210 0603/30k/5% c60 0603/100n/25v/7 c60 0603/100n/25v/7 r120 0603/10k/5% r120 0603/10k/5% c57 0603/100n/25v/7 c57 0603/100n/25v/7 1 2 l11 l11 r102 0603/4.7k/0.1%/rohs r102 0603/4.7k/0.1%/rohs r122 0603/10k/5%/open r122 0603/10k/5%/open r104 0603/100r/5% r104 0603/100r/5% r79 0603/20k/1%/open r79 0603/20k/1%/open out 1 vdd 2 vss 3 nc 4 cd 5 u5 rn5vd40aa/rohs u5 rn5vd40aa/rohs r139 0603/12.1k/1%/open r139 0603/12.1k/1%/open r106 0603/10k/5% r106 0603/10k/5% tp 1 sar21 sar21 1 2 l17 l17 r121 0603/100r/5% r121 0603/100r/5% r134 0603/3.3k/1%/open r134 0603/3.3k/1%/open viewsonic corporation model title date rev: viewsonic corporation 5 4 confidential - do not copy va1912w- 2 _va1912wb-2 s c a l a r www.datasheet.net/ datasheet pdf - http://www..co.kr/
v5a vin_12v inv_adj inv_on/off vol vol mute mute aud_det mute aud_shutdown aud_shutdown inv_adj inv_on/off v33c v5a v12a vol_adj audior- audior+ audiol- audiol+ audio_on aud_det led_gl gnd_inv v33c v33c gnd gnd gnd gnd gnd gnd gnd vin_12v gnd v5a gnd v5a v5a v12a gnd v5a gnd v5a gnd gnd gnd [gnd_inv] low: mute off r181 0603/10k/5%/rohs r181 0603/10k/5%/rohs c8 0603/0.1u/25v/open c8 0603/0.1u/25v/open r16 0603/1k/5%/rohs r16 0603/1k/5%/rohs r10 0603/4.7k/5%/rohs r10 0603/4.7k/5%/rohs c161 0603/100n/25v/y/rohs c161 0603/100n/25v/y/rohs r183 0603/1k/5%/rohs r183 0603/1k/5%/rohs 1 2 lp5 fbmj2125hs420/pbf lp5 fbmj2125hs420/pbf c7 0603/1u/10v/y/open c7 0603/1u/10v/y/open + cp1 uwt1e101mcl1gs/rohs + cp1 uwt1e101mcl1gs/rohs fp1 3216ff/1206/3a/rohs fp1 3216ff/1206/3a/rohs cp2 1206/10u/16v/5/rohs cp2 1206/10u/16v/5/rohs r14 0603/4.7k/5%/rohs r14 0603/4.7k/5%/rohs 1 3 2 q18 2n7002/rohs q18 2n7002/rohs tp 1 v5a1 v5a1 r12 0603/1k/5%/rohs r12 0603/1k/5%/rohs lp4 fbmj2125hs420/pbf lp4 fbmj2125hs420/pbf 1 3 2 q2 2n7002/rohs q2 2n7002/rohs 1 vol_adj1 vol_adj1 lp2 fbmj2125hs420/pbf lp2 fbmj2125hs420/pbf cp5 1210/4.7u/25v/5/rohs cp5 1210/4.7u/25v/5/rohs r13 0603/4.7k/5%/rohs r13 0603/4.7k/5%/rohs r11 0603/10k/5%/open r11 0603/10k/5%/open lp3 fbmj2125hs420/pbf lp3 fbmj2125hs420/pbf r182 0603/10k/5%/rohs r182 0603/10k/5%/rohs r19 0603/1k/5%/rohs r19 0603/1k/5%/rohs 1 vol1 vol1 c3 0603/100n/25v/y/rohs c3 0603/100n/25v/y/rohs cp6 1210/4.7u/25v/5/rohs cp6 1210/4.7u/25v/5/rohs lp1 fbmj2125hs420/pbf lp1 fbmj2125hs420/pbf 1 2 cp4 lv470m025e055r cp4 lv470m025e055r r9 0603/10k/5%/rohs r9 0603/10k/5%/rohs 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 cn4 header2x8fr2.54 cn4 header2x8fr2.54 r22 0603/0r/5%/rohs/open r22 0603/0r/5%/rohs/open cp3 1210/4.7u/25v/5/rohs cp3 1210/4.7u/25v/5/rohs tp 1 inv_on/off1 inv_on/off1 c4 open/0603 c4 open/0603 c6 1206/10u/16v/5/rohs c6 1206/10u/16v/5/rohs tp 1 inv_adj1 inv_adj1 1 3 2 q16 tp0610k/pbf q16 tp0610k/pbf 1 3 2 q3 tp0610k/pbf q3 tp0610k/pbf 1 3 2 q4 2n7002/rohs q4 2n7002/rohs 1 3 2 q5 2n7002/rohs q5 2n7002/rohs r18 0603/10k/5%/rohs r18 0603/10k/5%/rohs r15 0603/10k/5%/rohs r15 0603/10k/5%/rohs 1 3 2 q1 2n7002/rohs q1 2n7002/rohs c5 0603/100n/25v/7/rohs c5 0603/100n/25v/7/rohs r17 open/0603 r17 open/0603 r20 0603/0r/5%/rohs/open r20 0603/0r/5%/rohs/open tp 1 vin_12v1 vin_12v1 viewsonic corporation model title date rev: viewsonic corporation 5 5 confidential - do not copy va1912w- 2 _va1912wb-2 i n v e r t e r i n t e r f a c e www.datasheet.net/ datasheet pdf - http://www..co.kr/
v33p v33c v33c v5a v33p v5a dvi_5v vga_5v vctrl v18c vref gnd gnd v18c gnd (scaler vcc) (power for scaler) (panel vcc) heat-sink l9 fbmj2125hs420/pbf l9 fbmj2125hs420/pbf b 1 c 2 e 3 gnd 4 q8 h2907as q8 h2907as c160 0805/4.7u/16v/y c160 0805/4.7u/16v/y tp 1 v33c1 v33c1 r202 0603/51r/1% r202 0603/51r/1% gnd 1 vout 2 vin 3 vout 4 u4 lm1117mpx-3.3/rohs u4 lm1117mpx-3.3/rohs l18 fbmj2125hs420/pbf l18 fbmj2125hs420/pbf c44 1206/22u/16v/y/rohs c44 1206/22u/16v/y/rohs r203 0603/2k/1% r203 0603/2k/1% 1 2 3 d7 bav70w/open d7 bav70w/open c43 0603/100n/25v/7/rohs c43 0603/100n/25v/7/rohs 1 2 d9 b240a-f d9 b240a-f gnd 1 vout 2 vin 3 vout 4 u6 lm1117mpx-3.3/rohs u6 lm1117mpx-3.3/rohs c45 0603/100n/25v/7/rohs c45 0603/100n/25v/7/rohs c53 0603/100n/25v/7/rohs c53 0603/100n/25v/7/rohs c52 1206/22u/16v/y/rohs c52 1206/22u/16v/y/rohs r1 0603/0r/5%/open r1 0603/0r/5%/open tp 1 v33p1 v33p1 c51 0603/100n/25v/7/rohs c51 0603/100n/25v/7/rohs c50 1206/22u/16v/y/rohs c50 1206/22u/16v/y/rohs tp 1 v18v1 v18v1 1 2 d35 1n4148ws-f d35 1n4148ws-f r5 0603/0r/5%/open r5 0603/0r/5%/open c42 1206/22u/16v/y/rohs c42 1206/22u/16v/y/rohs r204 0603/100r/1% r204 0603/100r/1% viewsonic corporation model title date rev: viewsonic corporation 5 6 confidential - do not copy va1912w- 2 _va1912wb-2 p o w e r www.datasheet.net/ datasheet pdf - http://www..co.kr/
vsi hsync vsync vga_5v vga_5v hsi rin gin bin vsync gndr gndg gndb ddca_clk hsync ddca_dat v5a_esd v5a ddca_dat ddca_clk sog vga_5v dsub_det v5a_esd gnd gnd gnd gnd gnd gnd gnd gnd gnd gnd gnd v5a gnd gnd gnd gnd gnd 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 cn7 89263-6762 cn7 89263-6762 1 2 d33 udzsf-5.6b/pbf d33 udzsf-5.6b/pbf r66 0603/0r/5%/rohs r66 0603/0r/5%/rohs r24 0603/470r/1% r24 0603/470r/1% 1 3 2 d25 bav99w/rohs d25 bav99w/rohs r144 0603/0r/5%/open r144 0603/0r/5%/open 1 3 2 d24 bav99w/rohs d24 bav99w/rohs c11 0603/47n/16v/7/rohs c11 0603/47n/16v/7/rohs c158 0603/100n/25v/x/rohs c158 0603/100n/25v/x/rohs r129 0603/2.2k/5%/rohs r129 0603/2.2k/5%/rohs r21 0603/56r/1% r21 0603/56r/1% d10 0603220kv05t/rohs d10 0603220kv05t/rohs r27 0603/100r/1% r27 0603/100r/1% r55 0603/2.2k/5%/rohs r55 0603/2.2k/5%/rohs 1 2 d32 udzsf-5.6b/pbf d32 udzsf-5.6b/pbf c129 0603/100n/25v/x/rohs c129 0603/100n/25v/x/rohs r135 0603/10k/5%/rohs r135 0603/10k/5%/rohs c9 0603/47n/16v/7/rohs c9 0603/47n/16v/7/rohs c10 0603/47n/16v/7/rohs c10 0603/47n/16v/7/rohs c128 0603/33p/50v/n/rohs c128 0603/33p/50v/n/rohs r133 0603/10r/5%/rohs r133 0603/10r/5%/rohs r30 0603/75r/1% r30 0603/75r/1% c125 0603/47n/16v/7/rohs c125 0603/47n/16v/7/rohs c157 0603/100n/25v/x/rohs c157 0603/100n/25v/x/rohs d1 0603/10p/varistor/open d1 0603/10p/varistor/open c15 0603/1n/16v/7 c15 0603/1n/16v/7 l20 0603/0r/5%/rohs l20 0603/0r/5%/rohs c123 0603/47n/16v/7/rohs c123 0603/47n/16v/7/rohs r34 0603/56r/1% r34 0603/56r/1% r78 0603/75r/1% r78 0603/75r/1% d29 0603220kv05t/rohs d29 0603220kv05t/rohs r131 0603/100r/5%/rohs r131 0603/100r/5%/rohs c124 0603/47n/16v/7/rohs c124 0603/47n/16v/7/rohs r23 0603/56r/1% r23 0603/56r/1% r35 0603/0r/5%/open r35 0603/0r/5%/open tp 1 vsync1 vsync1 r68 0603/10k/5%/rohs r68 0603/10k/5%/rohs r57 0603/1k/1%/rohs r57 0603/1k/1%/rohs 1 3 2 d5 bav99w/rohs d5 bav99w/rohs c23 0603/100n/25v/7/rohs c23 0603/100n/25v/7/rohs c127 0603/33p/50v/n/rohs/open c127 0603/33p/50v/n/rohs/open r25 0603/100r/1% r25 0603/100r/1% c100 0603/220p/50v/n c100 0603/220p/50v/n tp 1 hsync1 hsync1 r54 0603/1k/1%/rohs r54 0603/1k/1%/rohs r64 0603/100r/5%/rohs r64 0603/100r/5%/rohs c126 0603/33p/50v/n/rohs/open c126 0603/33p/50v/n/rohs/open nc 1 nc 2 nc 3 gnd 4 sda 5 scl 6 vclk 7 vcc 8 u15 at24c02-10tu-1.8/rohs u15 at24c02-10tu-1.8/rohs 1 2 3 d31 bav70w/rohs d31 bav70w/rohs d2 0603/10p/varistor/open d2 0603/10p/varistor/open d6 0603220kv05t/rohs d6 0603220kv05t/rohs r29 0603/75r/1% r29 0603/75r/1% 1 2 d30 bzt52-c5v6s/rohs d30 bzt52-c5v6s/rohs c159 0603/100n/25v/x/rohs c159 0603/100n/25v/x/rohs r60 0603/47k/5%/rohs r60 0603/47k/5%/rohs r136 0603/3.9k/5%/rohs r136 0603/3.9k/5%/rohs l8 bk1608ll121/pbf l8 bk1608ll121/pbf r26 0603/100r/1% r26 0603/100r/1% viewsonic corporation model title date rev: viewsonic corporation 5 7 confidential - do not copy va1912w- 2 _va1912wb-2 v g a www.datasheet.net/ datasheet pdf - http://www..co.kr/
led_o led_g led_o led_g led_or right turbo auto menu left power led_gl audiol- audiol+ audior- audior+ v33c v33c v33c v33c v33c gnd gnd gnd gnd gnd gnd v33c bead array lp8,lp9,lp11=>modified rohs 1 3 2 q15 2n7002/rohs/open q15 2n7002/rohs/open 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 cn3 header 10_2/rohs cn3 header 10_2/rohs c1 0603/100n/25v/y/rohs/open c1 0603/100n/25v/y/rohs/open r2 0603/1k/5%/rohs/open r2 0603/1k/5%/rohs/open 7 8 5 3 1 2 4 6 lp6 bk32164m121 lp6 bk32164m121 1 2 l4 mpz1608s221/rohs l4 mpz1608s221/rohs 1 2 l3 mpz1608s221/rohs l3 mpz1608s221/rohs r63 0603/10k/5%/rohs r63 0603/10k/5%/rohs 1 3 2 q12 tp0610k/pbf q12 tp0610k/pbf 1 2 l2 mpz1608s221/rohs l2 mpz1608s221/rohs r3 0603/249r/1%/rohs r3 0603/249r/1%/rohs 1 2 l1 mpz1608s221/rohs l1 mpz1608s221/rohs r4 0603/249r/1%/rohs r4 0603/249r/1%/rohs 7 8 5 3 1 2 4 6 lp7 bk32164m121 lp7 bk32164m121 1 3 2 q14 tp0610k/pbf q14 tp0610k/pbf 7 8 5 3 1 2 4 6 rp46 0603*4/10k/5%/rohs rp46 0603*4/10k/5%/rohs 4 5 3 6 2 7 1 8 cp8 0603*4/100n/25v/rohs cp8 0603*4/100n/25v/rohs c2 0603/100n/25v/y/rohs/open c2 0603/100n/25v/y/rohs/open r36 0603/1k/5%/rohs/open r36 0603/1k/5%/rohs/open 7 8 5 3 1 2 4 6 rp47 0603*4/10k/5%/rohs rp47 0603*4/10k/5%/rohs 4 5 3 6 2 7 1 8 cp7 0603*4/100n/25v/rohs cp7 0603*4/100n/25v/rohs 1 3 2 q13 2n7002/rohs/open q13 2n7002/rohs/open r8 0603/0r/5%/rohs r8 0603/0r/5%/rohs r7 0603/0r/5%/rohs r7 0603/0r/5%/rohs r62 0603/10k/5%/rohs r62 0603/10k/5%/rohs viewsonic corporation model title date rev: viewsonic corporation 5 8 confidential - do not copy va1912w- 2 _va1912wb-2 o s d www.datasheet.net/ datasheet pdf - http://www..co.kr/
vcc oe stv cpv stb pol vcc stv cpv oe pol stb fsth panel_on/off dcdc_on/off vcm_pwm gvoff panel_on/off dcdc_on/off vcm_pwm gvoff bsth fsth bsth v33p stv cpv oe fb0n fb0p fb1n fb1p fb2n fb2p pol stb fckn fckp fg2p fg1p fg0p fg1n fg0n fg2n fr0p fr1n fr1p fr2n fr2p fr0n fsth v12a v5a panel_on/off dcdc_on/off vcm_pwm gvoff bsth br1n br2n br2p br0p br0n br1p bg0n bg2n bg1p bg2p bg1n bg0p bckp bckn bb1p bb2n bb0p bb1n bb0n bb2p v12a v33p gnd gnd v5a gnd gnd gnd s board x board ra n/p --> ba p/n ga n/p --> ga p/n ba n/p --> ra p/n 1 oe1 oe1 1 pol1 pol1 1 stv1 stv1 c121 1206/4.7u/35v/y/e c121 1206/4.7u/35v/y/e c118 0603/100n/25v/x/rohs c118 0603/100n/25v/x/rohs 1 fsth1 fsth1 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 cn1 il-fhr-f36s-hf/rohs cn1 il-fhr-f36s-hf/rohs 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 cn2 il-fhr-f36s-hf/rohs cn2 il-fhr-f36s-hf/rohs 1 dcdc_on/off1 dcdc_on/off1 c122 0603/100n/25v/x/rohs c122 0603/100n/25v/x/rohs 1 stb1 stb1 1 vcm_pwm1 vcm_pwm1 l7 fbmj2125hs420/pbf l7 fbmj2125hs420/pbf c120 0603/100n/25v/7/rohs c120 0603/100n/25v/7/rohs 1 bsth1 bsth1 c119 1206/22u/16v/y/rohs c119 1206/22u/16v/y/rohs 1 cpv1 cpv1 1 gvoff1 gvoff1 1 panel_on/off1 panel_on/off1 1 vcc1 vcc1 viewsonic corporation model title date rev: viewsonic corporation 5 9 confidential - do not copy va1912w- 2 _va1912wb-2 p a n e l i n t e r f a c e www.datasheet.net/ datasheet pdf - http://www..co.kr/
60 v i ew sonic corporatio n confidenti al - do not cop y v a 1912w -2 _va1912wb-2 11. pcb la y o ut diagrams www.datasheet.net/ datasheet pdf - http://www..co.kr/
61 v i ew sonic corporatio n confidenti al - do not cop y v a 1912w -2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
6 2 v i ew sonic corporatio n confidenti al - do not cop y v a 1912w -2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/
viewsonic corporation * reader?s response* dear readers: thank you in advance for your feedback on our servic e manual, which allows continuous improvement of our products. we would appreciate your completion of the assessment matrix below, for return to viewsonic corporation. assessment a. what do you think about the cont ent of this service manual? unit excellent good fair bad 1. precautions and safety notices 2. specification 3. front panel function control description 4. circuit description 5. adjustment procedure 6. troubleshooting flow chart 7. recommended spare parts list 8. exploded diagram and exploded parts list 9. block diagrams 10. schematic diagrams 11.pcb layout diagrams b. are you satisfied with this service manual? item excellent good fair bad 1. service manual content 2. service manual layout 3. the form and listing c. do you have any other opinions or sugge stions regarding this service manual? reader?s basic dada: name: title: company: add: tel: fax: e-mail: after completing this form, please return it to viewsonic quality assurance in the usa at facsimile 1-909-839-7943. you may also e-mail any suggestions to the director, quality systems & processes (marc.maupin@viewsonic.com) 62 confidential - do not copy va1912w- 2 _va1912wb-2 www.datasheet.net/ datasheet pdf - http://www..co.kr/

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