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| multiscanning color monitor technical service manual F770D (c17f05071) http://monitor.hei.co.kr http://hyundaiq.com
F770D technical service manual --1-- safety precaution warning service should not be attempted by anyone unfamiliar with the necessary precautions on this monitor. the followings are the necessary precautions to be observed before servicing. 1. always discharge the high voltage to the crt conductive coating before handling the crt. the picture tube is highly evacuated and if broken, glass fragments will be violently exploded. use shatter proof goggles and keep picture tube away from the bare body while handling. 2. when replacing a chassis in the cabinet, always be certain that all the protective devices are put back in place, such as nonmetallic control knobs, insulating covers, shields, isolation resistor capacitor network etc. 3. before returning the monitor to the customer, always perform an ac leakage current check on the exposed metallic parts of the cabinet, such as signal connectors, terminals, screw heads, metal overlays, control shafts etc, to be sure the monitor is safe to operate without danger of electrical shock. plug the ac line cord directly into a ac outlet (do not use a line isolation trasformer during this check.). use an ac voltmeter having 1500 ohm per volt or more sensitivity in the following manner : connect ground(water pipe, conduit, etc.) and the exposed metallic parts, one at a time. measure the ac voltage across the combination of 1500 ohm resistor and 0.15 capacitor. reverse the ac plug at the ac outlet and repeat ac voltage measurements for each exposed metallic part. the voltage must not exceed 0.3 volts rms. this corresponds to 0.2 milliamp ac. any value exceeded this limit constitutes a potential shock hazard and must be corrected immediately. instructions to user this equipment generates and uses radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer's instruction, may cause interference to radio and television. it has been tested and found to comply with the limits for the specifications in subpart j of part 15 fcc rules, which are designed to provide reasonable protection against such interference in a residential installation. however, there is no guarantee that interference will not occur in a particular installation. if this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures. reorient the receiving antenna relocate the computer with respect to the receiver plug the computer into a different outlet so that computer and receiver are on different branch circuits. ac voltmeter good earth ground such as the water pipe, conduit, etc 1500 ohm 10 watt 0.15f place this probe on each exposed metallic part. 0.15f roduct safety notice many electrical and mechanical parts in this monitor have special safety-related characteristics. these characteristics are often not evident from visual inspection. replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features identified by " ! " in the replacement parts list and schematic diagram. for continued protection, replacement parts must be identical to those used in the original circuit. the use of substitute replacement parts which dose not have the same safety characteristics as the factory recommended replacement parts shown in this service manual, may create shock, fire, x-ray radiation or other hazards. --2-- x-ray radiation precaution 1. excessive high voltage can produce potentially hazardous x-ray radiation. to avoid such hazards, the high voltage must be under the specified limit. the nominal value of the high voltage of this monitor is 26kv 1.0kv at zero beam current(minimun brightness) under a 120v ac power source. the high voltage must not(under any circumstances) exceed30kv. each time a monitor requires servicing, the high voltage should be checked. it is recommended the high voltage be recorded as a part of the service record. it is important to use an accurate and reliable high voltage meter. 2. this monitor is equipped with a protection circuit which prevents the monitor from producing excessively high voltage. each time the monitor is serviced, the protection circuit must be checked to determine that the circuit is properly functioning. 3. the only source of x-ray radiation in this monitor is the picture-tube. for continued x-ray radiation protection, the replacement tube must be exactly the same type tube as specified in the parts list. 4. some parts in this monitor have special safety-related characteristics for x-ray radiation protection. for continued safety, parts replacement should be undertaken only after referring to the product safety notice. product cdrh notice electrical potentiometers which is marked as caution " ! " in parts list are crititial components of safety & cdrh. therefore, for continued protection, replacements parts must be used it which is used in original pcb ass?y. F770D technical service manual --3-- general inforormation 1. description this 17" (16" viewable) color display monitor is operated in r, g, b, drive mode input. 2. operating instructions 2-1. front menu, select,down dpms(power)led, soft power. 2-2. rear input connection ac & signal cable 2-3 service instruction(internal controls) h-center , h/v focus 2-4. osd controls brightness/contrast, h/v-position, h/v-size, pincushion/trapezoid, pin balance, parallel, rotation, h/v moire, degauss, color control, information, language, osd h/v position ,recall 3. electrical characteristics 3-1. power supply input voltage : 100-240 v ac input current : 1.5a max. input frequency : 50 - 60hz power consumption : 75w max. 3-2. video input signal input : 0.7 vp-p analog signal(at 75 ohm terminated to ground) polarity : positive rise/fall time : < 5ns 3-3. horizontal synchronization signal level : ttl high : 2.4v min low : 0.4v max polarity : negative or positive frequency : 30khz - 70khz timing limits : pulse width (0.1s thp 6s) 3-4. vertical synchronization signal level : ttl high : 2.0v min low : 0.4v max polarity : negative or positive frequency : 50hz - 150hz timing limits : pulse width (8s tvp 2.048ms) --4-- video input signal recommended signals are shown below. ?video signal video level : 0 to 700mv polarty : positive video input : rgb separated analog level sync input : h-sync ; ttl level v-sync ; ttl level ?waveform video input(r, g, b) ?h-sync ?v-sync 0 1 2 3 4 59 60 61 62 63 700mv signal: 64 level gray scale linear stepping: (11.1mv-64 steps) active (4) front porch (t5) period (t1) sync width (t2) back porch (t3) active (4) front porch (t5) period (t1) sync width (t2) back porch (t3) power led power switch control desciption front view F770D technical service manual --5-- timing table horizontal dot 720 31.469 31.778 3.813 1.907 25.422 0.636 640 43.269 23.111 1.556 2.222 17.778 1.556 640 50.625 19.752 1.580 1.975 15.802 0.395 800 46.875 21.333 1.616 3.232 16.162 0.323 800 53.674 18.631 1.138 2.702 14.222 0.569 800 63.920 15.645 1.185 2.015 11.852 0.593 1024 60.023 16.660 1.219 2.235 13.003 0.203 1024 68.677 14.561 1.016 2.201 10.836 0.508 400 70.080 14.268 0.064 1.080 12.711 0.413 1.557 - + frequency khz period(t1) s sync width(t2) s back porch(t3) s active(t4) s front porch(t5) s vertical line frequency hz period(t1) ms sync width(t2) ms back porch(t3) ms active(t4) ms front porch(t5) ms interlaced sync polar ms n 480 85.008 11.764 0.069 0.570 11.093 0.023 0.671 - - n 480 100.05 9.995 0.059 0.435 9.481 0.020 0.514 - - n 600 75.000 13.333 0.064 0.448 12.800 0.021 0.553 + + n 600 85.061 11.756 0.056 0.503 11.179 0.019 0.577 + + n 600 100.03 9.997 0.063 0.501 9.387 0.047 0.610 + + n 768 75.029 13.328 0.050 0.466 12.795 0.017 0.533 + + n 768 84.997 11.765 0.044 0.524 11.183 0.015 0.582 + + n interlaced y/n h v the monitor is compatible with additional modes within the specified frequency ranges provided that they are different at least for one of the following : horizontal freq.: 1.0khz vertical freq.: 1hz note: even if the monitor detects the input timing as a factory preset mode, the size and position may not be able to be set as desired. check the input timings are under the specifications and adjust the image as you want. for better quality of display image, use the timing and polarity shown in the table above. please see your video card user's guide to ensure compatibility. note: even if the monitor detects the input timing as a factory preset mode, the size and position may not be able to be set as desired. check the input timings are under the specifications and adjust the image as you want. for better quality of display image, use the timing and polarity shown in the table above. please see your video card user's guide to ensure compatibility. --6-- composite sync 1 video input terminal a 15 pin d-sub male connector is used as the input signal connector. pin and input signals are shown in the table below. pin description d-sub male connector 123 4 5 678 9 11 12 13 14 10 15 signal pin no. seperate sync red 2 green 3 blue 4 n.c 5 ddc return 6 red ground 7 green ground 8 blue ground 9 +5(not used) 10 logic ground 11 n.c 12 sda 13 h-sync(ttl) 14 v-sync(vclk) 15 scl red green blue n.c ddc return red ground green ground blue ground +5(not used) logic ground n.c sda (h+v) sync vclk scl F770D technical service manual --7-- connecting with external equipment cautions be sure to turn off the power of your computer before connecting the monitor. --8-- 3. signal processing and mcu control the x-tal resonates at 12mhz. when the h and v sync or ttl composite sync are input to mcu, mcu can measures the h and v frequency to detect the video mode. mcu has digital to analog converter(dacs) control function like abl, h-lin rotation, brightness. and mcu can control , recall, h/v-size, h/v-position, pincushion/trapezoide, parallel/pin balance, h/v moire, color control, information, language, soft power by i2c bus line. the operation of mcu is shown in the table below. normal selftest stand-by suspend off theory of operation 1. power supply the ac line voltage range is from 100v to 240v. the smps has +80v, +55v, -12v, +7.0v, +14v, +5v the conducted noise is filtered by x(cp01, cp04) and y (cp02, cp03, cp11)capacitors and a common mode line filter (lp02). the input rectifier (dp01 dp04) converts the ac line voltage into a dc voltage to power the smps. the uc3843 (icp01) drives the power fet(qp04) according to the pwm signals generated by the r t and c t (rp07, cp10) connected pin 4 of icp01. the icp01 is an integrated current mode pwm. it consists of an oscillator, error amplifier, current sense comparator, under voltage lock-out and an mosfet drive stage. the switching frequency is locked to horizontal scan frequency by horizontal flyback pulse. when the monitor is in off mode with no pulsed syncs. qp05 and qp07 is turned off. the total power consumption must be less than 5w in off mode. 2. dpms and self test mode the power supply supports the dpms function. its operation is shown in the table below. mode h-sync v-sync bri mcu pin35 mcu pin 9 mcu pin 10 qp07 14v 7.0v remark o x x o x o x o x x control 5 v 0 v 0 v 0 v h h l l l h h h h l on on off off off 14v 14v 0v 0v 0v 7.0v 7.0v 7.0v 7.0v 2.3v h-freq (khz) h-lin1 pin 30 h-lin2 pin 29 h-lin3 pin 28 remark 31 < h 33 33.1 < h 36 36.1 < h 41 41.1 < h 45 45.1 < h 52 52.1 < h 59.0 59.1< h 62.0 62.1< h 66.0 66.1< h 69.0 l l l h h h h h h l l h l l l h h h l h h l l h l h h F770D technical service manual --9-- 4. horizontal deflection tda9116 is an i 2 c autosync deflection controller for h/v sync and drive processing. all functions are controlled by i2c bus. when h-sync is applied, the internal oscillator is automatically locked. the duty-cycle of h-output pulse pin 8/26 is variable by frequency. qh08 and th01 are used to drive the h-output transistor (qh09). qh09 is turned on, it conducts current through the deflection yoke on the right hand side of the screen. this current comes from the s correction capacitors (ch27, ch29, ch32, ch34), which have a charge equal to the effective supply voltage. when the qh09 is opened up, the damper diode(dh12) allows current for left hand side of the screen to flow back through the deflection yoke to the s capacitors. the flyback capacitor (ch23) determines the size and length of the flyback pulse. the s capacitors correct outside versus center linearity in horizontal scan. there fets (qh11, qh12, qh13) select the value of s capacitors. h-centering is controlled by a switch(swh01). the switch selects dc offset current flow through the yoke. a diode modulator is used to control the e-w correction and h-size. ich01 generates the e-w parabora wave using vertical amp. a power buffer (qh02, qh03) drives the diode modulator. in order to keep the high voltage constant independent of the horizontal scan frequency, the supply voltage of fbt must increase with increasing scan frequency proportionally. a step-up mode dc-dc converter with pwm is used to realize this demand. ich01 compares high-voltage feedback with reference voltage. its output pulse switches a fet(qh07). to adjust the high voltage, tda9116(ich01) has a control terminal (pin14). 5. vertical deflection in vertical section of tda9116/tda9302h there is auto-sync processing. the vertical output stage consists of a power op-amp with extra flyback grnerator. tda4866/tda9302(icv01) is used as vertical output stage. 6. x-ray protection and beam current limiting. a failure in the horizontal scan control section could cause a dangerous situation; the high voltage might rise to an unacceptable high level. when the flyback voltage rise to unacceptable level, the pin25 of ich01 detects these states over 6.2v tda9116/over 8.6v tda9116 it causes the h-drive stage and oscillator to be turned off. then high voltage is shut down until the power switch is on. the average anode current is measured at lower side of the high voltage winding of the fbt. the anode current flows through connectors(con04.cnc01) connected icc01(ka2500) and through rm07 connected icm01 pin38. and abl is controlled by icc01. 7. video amplifier and osd interface ka2500(icc01) is a very high freguncy video amplifier with three matched video amplifiers, osd contrast control sda, scl,osd interface, osd blk drive controls, blanking gate and clamp gate. h-blank signal is applied to pin 19. during blanking all three outputs are thrown to the pedestal level. an inserted h-sync is used to a clamp signal. the signal is applied to icc01 pin 18. three osd inputs (pin 1,2,3 of icc01) are ttl compatible and typical bandwidth is 80mhz. a fast commutate pin is provided to select either the video or the osd inputs as a source for amplification. osd contrast control is made by controlling simultaneously the gain of three internal variable gain amplifiers through the i2c bus interface. mtv021 is designed for monitor application to display built-in characters or fonts on to monitor screen. the display operation occurs by transferring data and control information from the mcu to ram through a serial data interface. the output stage is made of 3-channel power amplifier (icc03, lm2437). the output is capable of 40 volts swing in less than 11 sec? the three cathodes are ac coupled to the video amplifiers. the dc level on each cathode is set by a cut-off amplifier and clamp diode. the value of the dc voltage is adjusted by dacs. --10-- [ly-ry] 2.0mm data area hor.ax. ly ry visual characteristics 1. test condition resolution : any of preset modes input level : 700mv pattern : central white box covering 20% of the data area brightness control : default position (cut off) contrast control : adjust to 100 cd/m2 of luminance (center of the white field) image duty cycle : 10% to 90% magentic field : horizontal = 0.3 gauss vertical = 0.4 gauss supply voltage : 100 240 vac operating condition temperature (0 to 40)c humidity (35 to 80)% (w/o condensation) altitude (0 to 3000)m stroage condition temperature (-20 to 60)c humidity (5 to 85)% (w/o condensation) altitude (0 to 15,000)m 2. display centering the following describes the pattern for this test. basically it is composed by a single pixel white line around the perimeter of the data area, with marks for the horizontal and vertical axes, the background is black. the display centering shall be met as following specification at adjustied centering function (user?s control) [l-r] 4mm [u-d] 4mm display centering u r d l 3. tilt the maximum variation of the display rotation(tilt) shall be with in 2.0 mm based on the following formula. F770D technical service manual --11-- 4. geometric distortion all kind of geometric distortion (pincushion, barallel, parallelogram and trapezoid) shall be with in 2mm boundary (to tolerance frame) refer to belows tolerance frame. a 2mm b 2mm the tolerance frame sides are parallel to the window of enclosure axes. b a data area 5. linearity the linearity of an image displayed on the crt must meet the following requirements, with reference to figure for both x and y axis. formula : 100 = 6% overall where : x1=x2=....x16 y1=y2=....y12 xmax- xmin xmax+xmin y1 x1 . . . . . . . . x16 . . . . . . . . y12 100 = 5% adjacent cells xmax- xmin xmax+xmin 6. misconvergence the display must confirm to all following requirements: maximum convergence error. area horiz. direction vert. direction a central circle field of(229) mm diameter 0.3mm 0.3mm b all screen area (305 229) except area a 0.4mm 0.4mm --12-- the maximum convergence error shall be measures for a white spot of line, and represents the maximum distance between the energy centers of any two primary colors. power management system the automatic power management function saves electricity and reduces heat. used in conjunction with a pc having power management function, or a pc running screen blanking software, this monitor automatically reduces its power consumption when the pc is not in use. this monitor runs in four states:on(normal operating), stand-by(no video signal), suspend(minimum power for quick recovery) and off(non-operating). this monitor is in complaince with u.s epa energy star and nutek requirements. please refer to the following specifications. state signals power consumption recovery time led description h-sync v-sync video on pulses pulses active 75w - green stand by no pulse pulses blanked less than 5w within 3 sec suspend pulses no pulse blanked less than 5w within 3 sec off sw off no pulse no pulse blanked less than 5w within 3 sec no pulse no pulse blanked less than 1w within 3 sec orange off 305 mm 229 mm b b a b b active area F770D technical service manual --13-- trouble shooting 1. introduction this trouble shooting guide is arranged by fault conditions. following each fault condition is a check for a signal on condition to be answered yes or no. for no answer proceed to the right and continue until the fault is located. for a yes answer continue in the left column to the next numbered check. again followed this procedure until the fault is located. 2. trouble shooting procedure when troubleshooting this monitor, some precaution should be observed. use a high quality isolation tranformer is capable of providing 3 amps or more. never connect primary ground and secondary ground together including use with an isolation transformer. measure high voltage with respect to chassing ground only, and with a high impedance prove of 1000 mega-ohm or higher and rated for 30kv dc or higher. measure qh09 collector pulse with a high quality 100:1 probe rated for 1500 volts or higher. 3. troubleshooting procedure symptom a) image is scrolling. b) image is unstable. check(yes) 1) check for vsync at pin 40 of icm01 2) check for positive going vsync at pin 2 of ich01. 3) will v-oscillator is locked with input signal? (pin 22 of ich01) 4) check v-amp at pin 23 of ich01. 5) check v-out at pin 5 of icv01. 1) check for hsync at pin 39 of icm01 2) check for positive going hsync at pin 1 of ich01. 3) will h-oscillator is locked with input signal? (pin 6 of ich01) 4) check h-out at pin 26 of ich01 5) check for flyback pulse at pin 12 of ich01. action(no) check 15 pin d-sub connector, cable, zdm02. check icm01, ich01 check ch01, ch02, rh05 replace ich01. check b+ at pin 4,6 of icv01. check 15 pin d-sub connector, cable, zdm01. check icm01, ich01 check ch06, rh06 replaceich01 check rh10 --14-- symptom c) screen is black but high voltage is present. d) screen is black with no high voltage. e) no power check(yes) 1) check for g2, pin4 of crt. around 500 volts? 2) check for heater voltage at pin 6 of crt. (about 6.3v) 3) can screen be lit with brightness control at max? 4) check for video at pin 5, 8, 10 of icc01 5) check for positive pulse for clamp at pin 18 of icc01. 6) check if contrast controls video level at pin 21, 24, 26 of icc01. 7) check for video at pin 1, 2, 3 of icc03. 8) check if r, g, b cut-off control the video dc level at pin 6, 8, 11 of crt. 9) check crt. 1) is the led01 lighting in green color. 2) check for 14v at collector of qp07. 3) check output pulse at pin 6, 8 of ich01. 4) check hor-drive pulse at base of qh09. 5) check b+ at pin 2 of th04. 1) check icp01 pin 4, 7 2) check switch pulse at drain of qp04. 3) check voltage for, 55v at cathode of dp11 and for 7v at cathode of dp13 and for 14v at cathode of dp15 check qp01, qp02, dp05, dp09, tp02 check pin 6, 3 of icp01. recheck above item(d). action(no) check dh28, rh94, rh92, ch53, crt socket. g2 wire check dp13, rp24, rp25, qp05, qp06 crt socket. rc55, bc04, cnc01 check dh21, dh25, qh18, qh19, rh85 crt socket. rh82, rh83 check 15 pin d-sub connector, cable, dc13, dc14, dc15 check icm01, ich01 check icm01, rh24, icc01 check icc03,80 75v dc (pin 4) 12v dc (pin 8) check qc03 to qc08 check h.v sync at pin39, 40 of icm01. check pin 7, 8 of icm01. check icm01, icm02,icc03 check qp07, qp08. check pin 9 of icm01. check for vcc at pin 29 of ich01. check oscilation pulse at pin 29 of ich01. check x-ray voltage below 6.2v at pin 2 of ich01. check rh11, rh12, rh13 check qh08, th01. check dh07, lh01, qh07, qh04, qh05, qh06, qh51, rh41, rh42, rh39, rh18, ich01 F770D technical service manual --15-- adjustment method 1. caution extremely high voltage are present in the area around the fbt(th04) and the anode high voltage lead. 2. equipment required digital voltmeter frequency counter : about 40 hz to 100 khz color analyzer video signal generator high voltmeter : up to 30 kv alignment templete : attachment 1 3. before adjustment verify that the video output level is 0.7 vpp at 75 ohm termination and the video timmings are same as standard timming given in specification. place the ac power switch to the on position. allow the monitor to stabillize thermally for 15 minutes at least before any adjustment about the image parameters. the electron optics of the crt and electronics of system require time of stabillize. 4. adjustment procedure 4-1 horizontal raster center setting - video signal : back raster pattern in 60khz, 768 mode - measuring point : swh01, main board - place the raster in center of the bezel. 4-2 factory mode setting - turn off the power. - keep pressing the menu select key until the power turns on. - press the menu select key one more time. - you can see the ?f? message in 5the bottom on the right of the osd main menu. - this is the factory mode. - turn off the power to save the adjusted state. - select the "mode information" menu after you exit the factory mode. 4-3 rotation setting - video signal : cross hatch pattern in 31.5khz, 400 mode - adjust the rotation of screen by using the menu select key and adjustment dial. 4-4 color setting - adhere color analyzer sensor closely to crt center. - set factory mode. - video mode : 68.677khz, 768 mode --16-- 1 color temperature 9300k setting - select " 93 " by using the menu select key and adjustment up/down key. back raster setting video signal : back raster pattern adjust the brightness of back raster by rotating the adjustment up/down key in ?bright? limits : 2.5 0.5 cd/m 2 cut-off setting video signal : back raster pattern select ?cut-off? by using the menu select key and adjustment up/down key. press the menu select key to get the desired r, g or b cut-off. rotate the adjustment dial to limit the x and y color coordinate. limits : x=0.283 0.01, y=0.297 0.01 drive setting video signal : 20% white box select the "9300" by using the menu select key and adjustment up/down key. adjust the brightness go to 150 cd/m 2 press the menu select key to get the desired r or b rotate the adjustment up/down key to limit the x and y color coordinate. limits : x=0.283 0.01, y=0.297 0.01 contrast setting video signal : 20% white box adjust the brightness go to 0.1 cd/m2 by using the adjustment up/down key in ?bright? adjust the brightness of 20% white box by rotating the adjustment in ?contra? limits : 150 2.5cd/m 2 back raster setting again the method of adjustment is same to section 2) color temperature 6500k setting - select " 65 " by using the menu select key and adjustment up/down key. back raster, cut-off setting the method of adjustment is same to 9300k the color coordinate is x=0.313 0.01, y=0.329 0.01 drive, contrast setting the method of adjustment is same to 9300k the color coordinate is x=0.313 0.01, y=0.329 0.01 4-5 geometry setting - adhere template closely to the crt surface - video signal : cross hatch pattern in 31.5khz to 69khz expectively. - adjust the all items by using the menu/select key and adjustment . 1) horizontal position setting - place the screen in center of the horizontal direction. 2) horizontal size setting -adjust the horizontal size of the screen to 305 5 mm 3) vertical position setting - ?place the screen in center of the vertical direction. 4) vertical size setting -adjust the vertical size of the screen to 229 5 mm 5) pincushion setting - make the straight line to the vertical right and left line of screen. 6) trapezoid setting - make the same size to the horizontal up and bottom size of screen. 7) parallelogram & pin balance - adjust parallerogram until vertical lines are parallel to the vertical vezel. 8) corner pin - adjust corner pin until 4 corners are parallel to the vertical vezel. 9) rotation setting - adjust rotate until horizontal lines are parallel to the vezel. F770D technical service manual --17-- 4-6 focus - video signal : " full h " character pattern in 69khz 1024 mode - adjust h/v focus vr on the top and middle of the fbt so that the image of whole screen looks clear 5. x-ray protection test - in any signal input condition, short rh11 (main board) by using the jig. - at this moment, check out whether raster disappears. - remove the jig. - after the power switch of the set off and on, check out proper working 6. aging and self test mode the monitor has an enhanced level of self-diagonostics. when the signal cable is removed or signal isn't detected, the monitor is operated to off-mode. if menu/select key is pushed on off-mode, the system has the ability to generate an r.g.b test pattern and the following osd image is displayed on screen. picture a (mode for end user) 1. picture a on screen firstly, connect signal cable and power on, and then remove signal cable again secondly, push the select key and the image of ? sync off ? will be displayed on screen. about 3 second later. and last, power off and on again. and then picture a on screen. 2. transit picture a to picture b power off and push the ?select? key. and later power on again. about 3 second later picture b on screen. this mode for aging 3. transit picture b to picture a firstly, power off, and connect signal cable, and then push menu key. choose ?information? from menu on screen. secondly remove signal cable, and later power off on again. and then picture a on screen again. (osd message is moving around the screen) picture b (mode only for aging operation) (osd message is fixed at the center of the screen) no signal no signal 1024 768/ 75hz r g b no signal no signal 1024 768/ 75hz r no signal gb --18-- 229 240 351 305 320 404 attachment 1. alignment template F770D technical service manual --19-- specification crt size 17"(16" viewable) diagonal dot pitch 0.25 mm type non-glare, anti-static & tco coated input signal r.g.b analog cable 15 pin d-type male connector sync h-f 30 khz 70 khz(automatic) v-f video bandwidth 50 hz 150 hz(automatic) 108 mhz (-3db) display area(h v) color 305 229mm (max. over scan) infinite resolution 1280 1024(64khz/60hz) user controls & osd controls max. recall, brightness/contrast, h/v-position, h/v-size, pincushion/trapezoid, rotation, h/v-moire, degauss, color control, parallel, information, language, osd h/v poistion, pin balpance power management as per vesa standard, lower than epa's recommendation compatibility vesa ddc 1/2b basic vesa, 8514/a, xga, evga, mac ii power source 100-240 vac(universal power) 1.5a 75w safety & regulation tco emc safety tco?95/99 fcc class b, ce,emc culus, tv-gs, fimko, semko, dhhs, pcbc, gost-r, vcci temperature storage 0 to 40 degree celsius operating -20 to 60 degree celsius humidity operating 35% to 80% (non-condensing) storage 5% to 85% weight unit : 16.0kg gross weight :19.0kg(with carton) dimension(w h d mm) specification is subject to change without notice for performance improvement. 404 408 414mm --20-- general description the wt62p1 is a microcontroller for digital controlled monitor with universal serial bus(usb)interface. it contains an 8-bit cpu, 32k bytes flash memory, 512 bytes ram, 14 pwms, parallel i/os, sync signal processor, time, ddc 1/2b interface, master/slave i2c interface, low speed usb device module, 6-bit a/d converter and watch-dog timer. features 8-bit 6502 compatible cpu with 6mhz operating frequency 32768 bytes flash memory, 512 bytes sram. 12 mhz crystal oscillator 4 channels processor with h+v separation , h/v frequency counter, h/v polarity detection/control and clamp pulse output sync signal processor with h+v separation, h/v frequency counter, h/v polarity detection/control and clamp pulse output six free-running sync signal outputs(horizontal frequency up to 106khz) self-test pattern ddc 1/2b supported fast mode master slave i 2 c interface(up to 400khz) embedded usb function with endpoint 0 and endpoint 1 built-in 3.3v regulator for usb tranceiver orderinf ing ormation watch-dog timer maximum 28 progammable i/o pins one 8-bit programmable timer 6-bit a/d converter with 4 selectable inputs one external interrupt request input low v dd reset mc68hc705bd7b wt62p1 package type 42-pin pdip 42-oin shrink pdip 40-pin pdip 28-pin skinny pdip 44--pin sop part number wt62p1-n42 wt62p1-k42 wt62p1-n40 wt62p1-n28 wt62p1-s44 critical parts specification F770D technical service manual --21-- pin configuration pwm2 pwm1 pwm0 reset/3v3 vdd gnd osco osci pb5/sda2 pb4/scl2 pb3/pat pb2 pc7/sogin pc6 pc4 pc5 pc3/ad3 pb1/hfi pb0/hfo irq 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 vin hin pwm3 pd5/pwm4 pd4/pwm5 pd2/pwm7 pd3/pwm6 pd1/hout pd0/vout pa7/pwm13/clamp pa6/pwm12 pa5/pwm11 pa4/pwm10 pa3/pwm9 pa2/pwm8 pa1/scl1 pa0/sca1 pc1/ad1 pc0/ad0 pc2/ad2 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 28 pa5/pwm11 pa6/pwm12 pa7/pwm13/clamp pdo/vout pd1/hout hin vin reset/3v3 vdd gnd osco osc1 pb5/sda2 pb4/scl2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pa4/pwm10 pa3/pwm9 pa2/pwm8 pa1/scl1 pa0/sda1 pc0/ad0 pc1/ad1 pc2/ad2 pc3/ad3 pc4 pc5 pc6 pc7 irq 28 27 26 25 24 23 22 21 20 19 18 17 15 16 40- pin pdip wt62p1-n40 pwm2 pwm1 pwm0 reset/3v3 vdd gnd osco osci pb5/sda2 pb4/scl2 pb3/pat pb2 pc7/sogin pc6 pc4 pc5 pc3/ad3 pb1/hfi pb0/hfo irq 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 vin d - d + hin pwm3 pd5/pwm4 pd4/pwm5 pd2/pwm7 pd3/pwm6 pd1/hout pd0/vout pa7/pwm13/clamp pa6/pwm12 pa5/pwm11 pa4/pwm10 pa3/pwm9 pa2/pwm8 pa1/scl1 pa0/sca1 pc1/ad1 pc0/ad0 pc2/ad2 41 42 40 39 38 37 36 35 34 33 32 31 30 28 27 26 25 24 23 22 29 42- pin pdip 42- pin spdip wt62p1-k42 wt62p1-n42 pwm2 pwm1 pwm0 reset/3v3 vdd gnd osco osci pb5/sda2 pb4/scl2 pb3/pat pb2 pc7/sogin pc6 pc4 pc5 pc3/ad3 pb1/hfi pb0/hfo irq 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 vin d - d + hin pwm3 pd5/pwm4 pd4/pwm5 pd2/pwm7 pd3/pwm6 pd1/hout pd0/vout pa7/pwm13/clamp pa6/pwm12 pa5/pwm11 pa4/pwm10 pa3/pwm9 pa2/pwm8 pa1/scl1 pa0/sca1 pc1/ad1 pc0/ad0 pc2/ad2 42 43 44 41 40 39 38 37 36 35 34 33 32 31 29 28 27 26 25 24 23 30 44 - pin sop 28-pin skinny pdip wt62p1-s44 wt62p1-n28 --22-- 4k 2.5v cmos serial eeproms features single supply with operation down to 2.5v low power cmos technology - 1 ma active current typical - 10a standby current typical at 5.5v - 5 a standby current typical at 3.0v organized as two or fore blocks of 256 bytes (2 256 8) and (4 256 8) two wire serial interface bus, 12ctm schmitt tigger, filtered inputs for noise suppression output slope control to eliminate ground bounce 100khz (2.5v) and 400khz (5v) compatibility self-timed write cycle (including auto-erase) page-write buffer for up to 16 bytes 2 ms typical write cycle time for page-write hardware write cycle time for page-write can be operated as a serial rom factory programming (otp) available esd protection > 4,000v 1,000,000 erase/write cycles (typical) data retention > 40 years 8-pin dip, 8-lead or 14-lead soic packages available for extended temperature ranges - commercial : 0c to +70c - industrial : -40c to +85c ks24c08 F770D technical service manual --23-- description the microchip technology inc. 24lc04b/08b is a 4k-or 8k-bit electrically erasable prom. the device is organized as two or four blocks of 256 8 bit memory with a two wire serial interface. low voltage design permits operation down to 2.5 volts with standby and active currents of obly 5a and 1ma respectively. the 24lc04b/08b also has a page-write capability for up to 16 bytes of data. the 24lc04b/08b is available in the standard 8-pin dip and both 8-lead and 14-lead surface mount soic packages. block diagram i/o control logic sda scl wp vcc vss memory control logic xdec eeprom array (2 256 8) or (4 256 8) page latches hv generator ydec sense amp r/w control pin configuration pc is a trademark of philips corporation a0 a1 a2 1 2 3 4 wp v ss v ss scl sda 8 7 6 5 a0 a1 a2 1 2 3 4 wp v ss v ss scl sda 8 7 6 5 nc a0 a1 1 2 3 4 5 6 7 vcc nc nc wp nc 14 13 12 11 10 9 8 a2 v ss nc scl sda nc 8-soic package 14-soic package dip package --24-- current mode pwm controller optimized for off-line and dc to dc converters low start-up current (<1ma) automatic feed forward compensation pulse-by-pulse current limiting enhanced load response characteristics under-voltage lockout with hysteresis double pulse suppression high current totem pole output internally trimmed bandgap reference 500khz operation low ro error amp pin connections uc3843 minidip comp isense v fb v ref c t r / t 1 2 3 4 vcc output ground 8 7 6 5 block diagram + + + + + vcc vcc vcc uvlo v rel 8 4 2 1 r1 c1 voltage input output/ compensation feedback error amplifier 1.0 ma 2r r s pwm latch r q ground current sense comparator 10 v r r 3.6 v vref uvlo vc 7 output power ground current sense input 6 5 3 5 r 5 q 1 oscillator + 2.5v reference regulator internal bias 36 v 7 vin uc3842 uc3843 F770D technical service manual --25-- mc68hc705bd7b tda9116 features general advanced i 2 c bus controlled deflection processor dedicated for high-end crt monitors single supply voltage 12v very low jitter dc/dc converter controller advanced ew drive advanced asymmetry corrections automatic multistandard synchronization vertical dynamic correction waveform output x-ray protection and soft-start & stop on horizontal and dc/dc drive outputs i 2 c bus status register horizontal section 150 khz maximum frequency corrections of geometric asymmetry: pin cushion asymmetry, parallelogram tracking of asymmetry corrections with vertical size and position fully integrated internal horizontal moir cancellation and moir cancellation output vertical section 200 hz maximum frequency vertical ramp for dc-coupled output stage with adjustments of: c-correction, s-correction for super-flat crt, vertical size, vertical position vertical moir cancellation through vertical ramp waveform compensation of vertical breathing with eht variation ew section symmetrical geometry corrections: pin cushion, keystone, top/bottom corners separately horizontal size adjustment tracking of ew waveform with vertical size and position and adaptation to frequency compensation of horizontal breathing through ew waveform dynamic correction section output with vertical dynamic correction waveform for dynamic corrections like focus, brightness uniformity, ... fixed on screen by means of tracking system dc/dc controller section step-up and step-down conversion modes external sawtooth configuration bus-controlled output voltage synchronization on hor. frequency with phase selection selectable polarity of drive signal description the tda9116 is a monolithic integrated circuit as- sembled in a 32-pin shrink dual-in-line plastic package. this ic controls all the functions related to horizontal and vertical deflection in multimode or multi-frequency computer display monitors. the internal sync processor, combined with the powerful geometry correction block, makes the tda9116 suitable for very high performance mon- itors, using few external components. combined with other st components dedicated for crt monitors (microcontroller, video preampli- fier, video amplifier, osd controller) the tda9116 allows fully i 2 c bus-controlled computer display monitors to be built with a reduced number of ex- ternal components. shrink 32 (plastic package) order code: tda9116 --26-- pin function reference pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 name h/hvsyn vsyn hlckvbk hoscf hpll2c co hgnd ro hpll1f hpos1f hdycor hfly refout bcomp bregln bisense hehtln vehtln voscf vagccap vgnd vcap vout ewout x-ray hout gnd bout vcc scl sda vdycor function ttl compatible horizontal / horizontal and vertical sync. input ttl compatible vertical sync. input horizontal pll1 lock datection and vertical early blanking composite output high horizontal oscillator sawtooth threshold level filter input horizontal pll2 loop capacitive filter input horizontal oscillator capacitor input horizontal section ground horizontal oscillator resistor input horizontal pll1 loop filter input horizontal position filter and soft-start time constant capacitor input horizontal dynamic correction output horizontal flyback input reference voltage output b+ dc/dc error amplifier(comparator)output regulation feedback input of the b+ dc/dc converter controller b+ dc/dc converter current(1) sense input input for compensation of horizontal amplitude versus eht variation input for compensation of vertical amplitude versus eht variation vertical oscillator sawtooth low threshold filter(capacitor to be connected to vgnd) input for storage capacitor for automatic gain control loop in vertical oscillator vertical section ground vertical sawtooth generator capacitor vertical deflection drive output for a dc-coupled output stage e/w output x-ray protection input horizontal drive output main ground b+ dc/dc converter controller output supply voltage i 2 c bus serial clock input i 2 c bus serial data input/output vertical dynamic correction output F770D technical service manual --27-- tda9302h heptawatt (plastic package) order code : tda9302h flyback generator thermal protection 3 6 2 1 7 5 4 yoke +v s power amplifier tda9302h block diagram . power amplifier . flybackgenerator . thermal protection 7 6 5 4 3 2 1 tab connected to pin 4 outputstage supply output ground flybackgenerator supply voltage inverting input non-invertinginput pinconnections(top view) description the tda9302h is a monolit hic integrated circuit in heptawatt tm package.it is a high effi ciency powerbooster fordirectdriving ofvertical win dings of tvyokes. it is intended foruse incolor and b & w televisionas wellas in monitors and displays. --28-- absolute maximumratings at t a =25 o c o c symbo l parameter value unit v s supplyvoltage (pin2) 35 v v 5 ,v 6 flyback peak voltage 60 v v 3 voltage at pin3 + v s v 1 ,v 7 amplifier inputvoltage + v s 0.5 v i o deflectionoutputcurrent + 1.8 a i 3 pin 3 dc currentat v 5 --30-- information furnished is believed to be accurate and reliable. however, sgs-thomsonmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no licence is granted by implication or otherwise under any patent or patent rights of sgs-thomsonmicroelectronics. specifications mentione d in this publication are subject to change without noti ce. this publication supersedes and replaces all information previously supplied. sgs-thomsonmicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of sgs-thomsonmicroelectronics. purchase of i 2 c components of sgs-thomsonmicroelectronics, conveys a license under the philips i 2 c patent. rights to use these components in a i 2 c system, is granted provided that the system confo rms to the i 2 c standard specifications as defined by philips. sgs-thomsonmicroelectronics group of companies australia- brazil- china- france - germany- hong kong - italy- japan - korea - malaysia - malta- morocco the netherlands- singapore - spain - sweden - switzerland- taiwan- thailand- unitedkingdom- u.s.a. l2 l3 l5 l7 l6 dia. a c d e d1 h3 h2 f g g1 g2 l1 l mm 1 f1 package mechan ical data : 9 pins- plastic heptawatt dimensions millimeters inches min. typ. max. min. typ. max. a 4.8 0.189 c 1.37 0.054 d 2.4 2.8 0.094 0.110 d1 1.2 1.35 0.047 0.053 e 0.35 0.55 0.014 0.022 f 0.6 08 0.024 0.031 f1 0.9 0.035 g 2.41 2.54 2.67 0.095 0.100 0.105 g1 4.91 5.08 5.21 0.193 0.200 0.205 g2 7.49 7.62 7.8 0.295 0.300 0.307 h2 10.4 0.409 h3 10.05 10.4 0.396 0.409 l 16.97 0.668 l1 14.92 0.587 l2 21.54 0.848 l3 22.62 0.891 l5 2.6 3 0.102 0.118 l6 15.1 15.8 0.594 0.622 l7 6 6.6 0.236 0.260 m 2.8 0.110 m1 5.08 0.200 dia. 3.65 3.85 0.144 0.152 F770D technical service manual --31-- iic bus controlled r/g/b video amplifier the ka2500 is a very high frequency video amplifier system with iic bus controlled used in monitor with high resolution up to 1280x1024 it contains 3 matched r/g/b video amplifiers with osd interface and provides a flexible interfacing to iic bus controlled adjustment system. functions r/g/b video amplifier osd interface iic bus control contrast/osd control brightness control cut-off brightness control r/g/b sub contrast / cut off control blank / clamp gate half tone brightness uniformity features 3channel r/g/b video amplifier, 150mhz @f-3db iic bus control items - contrast control - sub contrast control for each channel - brightness control - osd contrast control - cut-off brightness control - cut-off control for each channel - switch registers for sblk and video half tone and cut-off int/ext sub contrast control range : 11db capable of 7.0v p-p output swing range video / osd high speed switch clamp gate with anti osd sagging b/u(brightness uniformity) interface video input clamp, brt clamp video half tone function on osd picture osd interface, osd blk abl ttl r/g/b osd inputs, 800mhz bandwidth contrast control range : 38db osd contrast control range : 38db pin configurations ka2500b r_osd_in bu 28 1 g_osd_in r_clamp_cap 27 2 r_osd_in r_video_out 26 3 osd_blank g_clamp_cap 25 4 r_vidoe_in g_video_out 24 5 vcc1 vcc3 23 6 gnd1 gnd3 22 7 g_vidoe_in b_video_out 21 8 vcc2 b_clamp_cap 20 9 b_vidoe_in blank_gate 19 10 gnd(l) clamp_gate 18 11 abl r_cut_off 17 12 scl g_cut_off 16 13 sda b_cut_off 15 14 ka2500 --32-- to-220ab type no. kia7805p/pi function typ vo(v) 5 max. i o (a) vin(v) 35 p d (w) 20.8 package kia7806p/pi 6 kia7808p/pi 8 kia7809p/pi 9 kia7810p/pi 10 kia7812p/pi 1.0a 3-terminal regulator 12 1.0 kia7815p/pi 15 kia7818p/pi 18 40 kia7820p/pi 20 kia7824p/pi 24 output common input i c o mc68hc705bd7b type no. function operating voltage (v) package kia7019p/f 7045p/f cpu reset, low voltage detector 1.9 4.5 to - 92 kia7419p/f 7445p/f cpu reset, high voltage detector 1.9 4.5 mc68hc705bd7b voltage detector ics mc68hc705bd7b voltage regulator ics 8 7 6 5 1 2 3 4 output a inverting input a non inverting input a gnd v output b inverting input b non inverting input b lm358 F770D technical service manual --33-- horizontal deflection output for high resolution display, color tv high speed switching applications high voltage : v cbo =1500v low saturation voltage : v ce(sat) =3v(max.) high speed : tf=0.15s(typ.) collector metal (fin) is fully covered with mold resin maximum ratings (ta=25 c) tt2062 characteristic symbol rating unit collector-base voltage v cbo 1500 v collector-emitter voltage v ceo 800 v emitter-base voltage v ebo 5v collector current i c dc pulse 18 a i cp 35 base current i b 4a collector power dissipation (tc=25c) p c 85 w junction temperature t j 150 c storage temperature range t stg symbol rating a 600 600 b 1500 1500 5.0 50 12.5 -40 +150 -40 +150 unit -55 150 c fmp-2fur characteristic v rsm v transient peak reverse voltage v rm v peak reverse voltage i f(av) v average forward current i fsm a peak surge forward current i 2 ta 2 s i 2 t limiting value t j c junction temperature t stg c storage temperature --34-- general description the lm2437 is an integrated high voltage crt drive circuit designed for use in color monitor applications. the ic con-tains three high input impedance. wide band amplifiers which directly drive the rgb cathodes of a crt. each chan-nel has its gain intemally set to-14 and can drive crt ca-pacitive loads as well as resistive loads present in other ap-plications, limited only by the package?s power dissipation. the ic is packaged in an industry standard 9-lead to-220 molded plastic power package.see thermal considerations section. features well matched with lm1279 video preamp 0v to 4.5v input range stable with 0-20 pf capacitive loads and inductive peaking networks convenient to-220 staggered lead package style srandard lm243x family pinout which is designed for easy pcb layout applications 1024 x 768 displays up to 85hz refresh pixel clock frequencies up to 100mhz monitors using video blanking mc68hc705bd7b lm2437 simplified schematic diagram (one channel) top view F770D technical service manual --35-- features horizontal sync input up to 120 khz. on-chip pll circuitry up to 96mhz programmable horizontal resolutions up to 1524 dots per display row full-screen display consists of 15(rows) by 30(columns) characters. 12 x 18 dot matrices per character. total of 272 characters and graphic fonts, including 256 standard and 16 multi-color mark rom fonts. 8 color-selectable maximum per display character. 7 color-selectable maximum for charater background. double character height and/or width conrrol. programmable positioning for display screen center. bordering, shadowing and blinking effect. programmable character height(18 to 71 nl lines)control. row to row spacing register to manipulate the constant display height. 4 programmable background windows with multi-level operation and shadowing on window effect. software clears bit for full-screen erasing. half tone and fast blanking output. fade-in fade-out effect. 8-channel/8-bit pwm d/a converter output. compatible with spi bus or i 2 c interface with slave address 7ah(slave address is mask option) 16-pin,20-pin or 24-pin pdip package. general description mtv021 is designed for monitor applications to display built-in characters or fonts onto monitor screen. the display operation occurs by transferring data and control information from the micro- controller to ram through a serial data interface. it can execute full-screen display automatically, as well as specific functions such as character background color, bordering, shadowing, blinking, double height and width, font by font color control, frame positioning, frame size control by character height and row-to-row spac-ing, horizontal display resolution, full-screen erasing, fade-in.fade-out effect, windowing effect and shad-owing on window. mtv021 provides 256 standard and 16 multi-color characters and graphic fonts for more efficacious applications. the full osd menu is formed by 15 rows x30 columns, which can be positioned any- where on the monitor screen by changing vertical or horizontal delay moreover, mtv021 also provides 8 pwm dac channels with 8-bit resolution and a pwm clock out put for external digital-to-analog control. mc68hc705bd7b mtv021 --36-- block diagram ssb serial data interface display&row control registers character rom user font ram lumince & borger generator windows & frame control address bus administrator vertical display control color encoder power on reset pwm d/a converter horizontal display conrtol phase lock loop sck sda vflb rp vco hflb arwdb horen voren nrow 8 data 8 craddr lpn cws data 8 data 8 data 8 8 data 9 row.col ack rcaddr daddr fontaddr winaddr pwmaddr vsp hsp ch 7 vdren arwdb horen volkx nrow chs verto 8 hord 8 5 lpn 8 vertd 8 hord 7 ch pwm 0 pwm 1 pwm 2 pwm 3 pwm 4 pwm 5 pwm 6 pwm 7 cws chs vclks lumag lumar lumab blink border luma besn hsp shadow vsp osdenb wr wb wg fbkgc bcank lumar lumar lumar lumar lumar pr8 rout bout gout fbkg htone vdd vss vdda vssa F770D technical service manual --37-- pin connection name vssa vco rp vdda hflb ssb sda sck pwm0 pwm1 pwm2 pwm3 i/o - i/o i/o - i i i i o o o o pin no. n16 n20 n24 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 - 9 9 - 10 10 - - 11 - - 12 descriptions analog ground. this ground pin is used to internal analog circuitry. voltage control oscillator. this pin is used to control the internal oscil- lator frequency by dc voltage input from external low pass filter. bias resistor. the bias resistor is used to requlate the appropriate bias current for internal oscillator to resonate at specific dot frequency. analog power supply. positive 5v dc supply for internal analog cir- cuity, any a 0.1uf decoupling capacitor shouid be connected across to vdda and vssa. horizontal input. this pin is used to input the horizontal synchronizing signal. it is a leading edge triggered and has an internal pull-up resistor. serial interface enable. it is used to enable the serial data and is also used to select the operation of i 2 c or spi bus. if this pin is left floating, i2c bus is enabled, otherwise the spi bus is enabled. serial data input . the external data transfer through this pin to internal display registers and control registers. lt has an internal pull-up resistor. serial clock input. the clock-input pin is used to synchronize the data transfer. it has an internal pull-up resistor. open-drain pwm d/a converter 0. the output pulse width is program- mable by the register of row 15, column 23. open-drain pwm d/a converter 1. the output pulse width is program- mable by the register of row 15, column 24. open-drain pwm d/a converter 2. the output pulse width is program- mable by the register of row 15, column 25. open-drain pwm d/a converter 3. the output pulse width is program- mable by the register of row 15, column 26. vssa vss rout gout bout fbkg htone/pwmck vflb vdd pwm 7 pwm 6 pwm 5 pwm 4 vco rp vdda hflb ssb sda sck pwm0 pwm1 pwm2 pwm3 1 2 3 4 5 6 7 8 9 10 12 24 23 22 21 20 19 18 17 16 15 14 13 11 mtv021n24 vssa vss rout gout bout fbkg htone/pwmck vflb vdd pwm 7 pwm 6 vco rp vdda hflb ssb sda sck pwm0 pwm1 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 mtv021n20 vssa vss rout gout bout fbkg htone/pwmck vflb vdd vco rp vdda hflb ssb sda sck 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 mtv021n21 pin descriptions --38-- first byte last byte name pwm4 pwm5 pwm6 pwm7 vdd vflb htone/ pwmck fbkg bout gout rout vss i/o o o o o - i o o o o o o pin no. n16 n20 n24 - - 13 - - 14 - 11 15 - 12 16 9 13 17 10 14 18 11 15 19 12 16 20 13 17 21 14 18 22 15 19 23 16 20 24 descriptions open-drain pwm d/a converter 4. the output pulse width is program- mable by the register of row 15, column 27. open-drain pwm d/a converter 5. the output pulse width is program- mable by the register of row 15, column 28. open-drain pwm d/a converter 6. the output pulse width is program- mable by the register of row 15, column 29. open-drain pwm d/a converter 7. the output pulse width is program- mable by the register of row 15, column 30. digital power supply. positive 5v dc supply for internal digital circuitry and a 0.1uf decoupling capacitor should be connected across to vdd and vss. vertical input. this pin is used to input the vertical synchronizing signal. it is leading triggered and has an internal pull-up resistor. half tone output /pwm clock output. this is a multiplexed pin selected by pwmck bit. this pin can be a pwm clock or used to attenuate r.g.b gain of vga for the transparent windowing effect. fast blanking output. it is used to cut off external r,g,b signals of vga white this chip is displaying characters or windows. blue color output. it is a blue color video signal output. green color output. it is a green color video signal output. red color output. it is a red color video signal output. digital ground. this ground pin is used to internal digital circuity. functional descriptions serial data interface the serial data interface receives data transmitted from an external controller. and there are 2 types of bus can be accessed through the serial data interface, one is spi bus and other is i 2 c bus. spi bus while ssb pin is pulled to ? high? or ? low? level, the spi bus operation is selected. and a valid transmission should be starting from pulling ssb to ?low? level, enabling mtv021 to receiving mode, and retain ?low?level until the last cycle for a complete data packet transfer. the protocol is shown in figure 1. msb lsb ssb sck sda transistors F770D technical service manual --39-- type no. max. ratings v ce(set) max package v ceo (v) i c (ma) p c (mw) (v) i c (ma) i b (ma) 123 ksp45 350 300 1.5w 0.5 10 1 e b c to-92 c kta1273y -30 -2.0 1w -2.0 -1.5 -30 e b to-92l ksa928y -30 -2.0a 1w -2.0 -1.5a -30 e c b to-92l ksa1013 -160 -1.0a 0.9w -1.5 -500 -50 e c b to-92l ksd1616y 50 1 0.75w 0.3 1a 50 e c b to-92 ksa733cy -50 -150 250 -0.3 -100 -10 e c b to-92 irf630a 200v 9a 72w 0.4 (max) rds(on) 30v (vgss) g ds to-220ab 50 150 625 0.25 100 10 e c b to-92 ktc3198y 50 150 250 0.15 100 10 e c b to-92 ksc945cy 30 2a 1w 2.0 1.5a 30 e b c to-92l ktc3205y 300 500 0.625 0.5 20 2 e b c to-92 ksp92 50 100 400 -0.3 -100 -0.88 e c b to-92m ksp42 -300 -500 0.625 -0.5 -20 -2 b b c to-92 krc102m 2sk2545 600v (v dss ) 6a(i d ) 40w (p t ) 1.2 (max) r ds(on ) 30v (v gss ) gd s to-220is yta630 200v (v dss ) 10a(i d ) 75w (p t ) 0.8 (max) r ds(on ) 20v (v gss ) gd s to-220ab to-92 123 to-92l 123 to-92m 123 to-220is to-3p to-220ab --40-- product safety notice : components marked with have special characteristics important to safety. abbreviations : rd r-carbon ck c-ceramic, hk rs r-metal oxide ce c-electrolytic rx r-cement cc c-ceramic, temp rn r-metal( 1%) cq c-polyester, c-polypropylene cf c-metal polyester c-metal polypropylene note : components of this parts list can be changed for quality improvement without information. ! replacement parts list ! " #"# ## " " $ % $ " & '" '( " '( ( " $)% $)% $)% $)% $ )% $)% * " +( ( * ( !* * + ( *( " ) ( * ( * , * +! 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Price & Availability of F770D
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