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lcd-monitor chassis : ls19myn model : 943nw / 943NWX service manual tft-lcd monitor contens 943nw / 943NWX refer to the service manual in the gspn (see the rear cover) for the more information. 1. precaution s 2. product specifcation s 3. disassembly and reassembl e 4. troubleshootin g 5. exploded view & part lis t 6. wiring diagra m 7. schematic diagra m free datasheet http://
contents 1. precautions .............................................................................................................. 1- 1 1-1. safety precautions ......................................................................................................... 1- 1 1-2. servicing precautions ..................................................................................................... 1- 2 1-3. static electricity precautions .......................................................................................... 1- 2 1-4. installation precautions .................................................................................................. 1- 3 2. product specifcations ............................................................................................ 2- 1 2-1. feature & specifcations ................................................................................................. 2- 1 2-2. spec comparison to the old models .............................................................................. 2- 2 2-3. accessories .................................................................................................................... 2- 3 2-4. accessories (sold separately) ........................................................................................ 2- 3 3. disassembly and assembly ................................................................................... 3- 1 3-1. simple stand disassembly ........................................................................................ 3- 1 3-2. has stand disassembly .............................................................................................. 3- 4 4. troubleshooting ...................................................................................................... 4- 1 4-1. troubleshooting .............................................................................................................. 4- 1 4-2. when the power does not turn on ............................................................................... 4- 2 4-3. when the screen is blank (analog) ................................................................................. 4- 4 4-4. error examples and actions ........................................................................................... 4- 7 4-5. adjustment ...................................................................................................................... 4- 8 5. exploded view & part list ...................................................................................... 5- 1 5-1. simple stand exploded view ..................................................................................... 5- 1 5-2. simple stand parts list .............................................................................................. 5- 3 5-3. has stand exploded view ................................................................................................. 5- 9 5-4. has stand parts list .................................................................................................. 5-1 1 6. wiring diagram ........................................................................................................ 6- 1 6-1. wiring diagram - main board ......................................................................................... 6- 1 6-2. wiring diagram - ip board .............................................................................................. 6- 2 6-3. connector functions ...................................................................................................... 6- 3 6-4. cables ............................................................................................................................ 6- 3 7. schematic diagram ................................................................................................. 7- 1 7-1. circuit descriptions ......................................................................................................... 7- 1 7-2. schematic diagrams (scaler part) ................................................................................. 7- 2 7-3. schematic diagrams (power flowchart) ........................................................................ 7- 2 7-4. schematic diagrams (ip board) ..................................................................................... 7- 3 7-5. schematic diagrams (main pba) .................................................................................. 7- 3 free datasheet http://
gspn (global service partner network) area web site north america http://service.samsungportal.com latin america http://latin.samsungportal.com cis http://cis.samsungportal.com europe http://europe.samsungportal.com china http://china.samsungportal.com asia http://asia.samsungportal.com mideast & africa http://mea.samsungportal.com this service manual is a property of samsung electronics co.,ltd. any unauthorized use of manual can be punished under applicable international and/or domestic law. ? 2007 samsung electronics co.,ltd. all rights reserved. printed in korea p/n: bn82-00288a-00 free datasheet http://
3-1 3. disassembly and assembly 3. disassembly and assembly this section describes the disassembly and reassembly sequences for this monitor. warning: as this monitor has parts that are sensitive to static electricity, be careful when handling them. 3-1. simple stand disassembly caution: 1. turn the monitor off before beginning the disassembly process. 2. disassemble the monitor carefully as directed in the following procedures. 3. when disassembling the monitor, do not use any metal tools except for the provided jig. description photo screws 1. place a soft cloth on the table and place the monitor onto it with the front part facing downwards. hold the monitor set with one hand and hold and pull the stand body backwards with the other hand to remove the stand body from the monitor set. caution : : if you do not tilt the stand and use too much force to remove it, the connection pin may break. 2. turn the monitor over and insert your hands into the top of the monitor at the center and separate the front cover in the direction of the arrow as shown in the fgure. separate the sides of the front cover up to the directed line as shown in the fgure. 3. turn the monitor over again to remove the back cover. free datasheet http://
3-2 3. disassembly and assembly description photo screws 4. remove the shield-lamp using the provided jig. caution: the shield-lamp is sharp. 5. remove the lvds, lamp wire, function cable, and speaker cable, and then remove the shield-cover. lamp wire lvds function 6. remove the lcd panel.. 7. remove the four (4) screws shown in the fgure. 8. remove the four (4) screws shown in the fgure and remove the bracket support. free datasheet http://
3-3 3. disassembly and assembly description photo screws 9. remove the main pcb and ip boards from the shield-cover. the assembly is in the reverse order of disassembly. free datasheet http://
3-4 3. disassembly and assembly 3-2. has stand disassembly description photo screws 1. if the stopper pin at the back of the stand is not removed, place a soft cloth on the table and place the monitor on it, and then hold the monitor set and remove the stopper pin at the back of the stand. 2. turn the monitor over. remove the two (2) screws that hold the stand in place and then remove the stand. caution: when removing the screws, hold the stand body with one hand so that the stand does not fall. 3. the following steps are the same as steps 2 to 9 for disassembling the simple stand. the assembly is in the reverse order of disassembly. free datasheet http://
5-1 5. exploded view & part list 5. exploded view & part list 5-1. simple stand exploded view (ls19mynkfz/xbm) t0003 m0215 m0174 m0081 m0081 t0514 m0006 m0013 m0003 m0027 bn63-03965a free datasheet http://
5-2 5. exploded view & part list 5-1-1. ls19mynkfz/xbm parts list (943NWX) location no. code no. description & specifcation qty sa/sna remark t0003 bn96-07592b assy cover p-front;[mckinley]ls19myw,abs 1 s.a m0215 bn07-00462a lcd-panel;m190a1-l07 1 s.a m0174 bn44-00121k ip board;pwi1904sj(j),mckinley 943nw/bw, 1 s.a m0081 6003-000115 screw-taptite;bh,+,b,m3,l6,zpc(blk),swrc 2 s.a m0081 6003-001439 screw-taptite;bh,+,-,s,m4,l8,zpc(wht),sw 1 s.n.a t0514 bn61-03557a bracket-support;2043bw/nw[mckinley],spte 1 s.n.a m0006 bn96-06381r assy shield p-cover;943nw(cmo panel),sec 1 s.n.a bn63-03965a shield-lamp;943bw/nw,spte,t0.3,(wide) 1 s.n.a m0013 bn96-06380n assy cover p-rear;ls19myn,hips hb,bk26,s 1 s.a m0003 bn96-06388a assy stand p;-,943bw,-,secc t2.0,-,- 1 s.a m0027 bn96-06672a assy stand p-base;ls17my,abs hb,bk26,h/g 1 s.a free datasheet http://
5-3 5. exploded view & part list 5-2. ls19mynkfz/xbm parts list service bom ( sa : service available, sna : service not available) level location no. code no. description & specifcation qty sa/sna remark ls19mynkfz/xbm 943NWX,sal1/s19b8-lmy,19,lcd- mo,ecuador 0.1 m0002 bn90-01584a assy cover rear;ls19mynkbz/xsf,cmo panel 1 s.n.a ..2 m0013 bn96-06380n assy cover p-rear;ls19myn,hips hb,bk26,s 1 s.a ...3 m0113 bn61-01581a bracket-vesa;bi17/19bs,secc,t1.0 2 s.n.a ...3 m0006 bn63-03940a cover-rear sub;2043bw/nw,hips hb,bk26 1 s.n.a ...3 m0006 bn63-03982g cover-rear;943bw/nw,hips hb,bk26,cmo,sim 1 s.n.a ...3 m0126 bn73-00162a rubber-panel;943bw/ nw,rubber,black,(wide 6 s.n.a ...3 m0126 bn73-00164a rubber-panel;ls19myw,rubber,black 3 s.n.a 0.1 m0001 bn90-01631a assy cover front;ls19mynkfz/xbg,cmo pane 1 s.n.a ..2 t0003 bn96-07592b assy cover p-front;[mckinley]ls19myw, abs 1 s.a ...3 ccm1 bn63-02183d cover-sheet;rhcm,pe vinyl,t0.05,680mm,20 0.5 s.n.a ...3 m0112 bn63-04551b cover-front;[mckinley]ls19myw,abs hb,t2. 1 s.n.a ...3 m0130 bn67-00209a lens led;mckinley,pc clear,tp15(tp-1020) 1 s.n.a ...3 m0175 bn96-06485b assy board p-touch function;mckinley,ct5 1 s.a ....4 m0014 bn94-01772c assy pcb main-function pcb,bn9;ls17my* 1 s.n.a .....5 m2893 bn39-01007a lead connector;mckinley,ul1571#30,5 to 5 1 s.a .....5 bn61-03552a guide-control;2043bw/nw,abs hb,gr70 1 s.n.a .....5 bn74-00011a tape-function tape;double face tape,poly 1 s.n.a .....5 bn74-00012a tape-function tape;double face tape,poly 1 s.n.a .....5 t0174 bn97-02132l assy smd;ls17my* 1 s.n.a ......6 cd1 0406-001172 diode-tvs;cds3c30gth,48/-/50v,smd 1 s.a ......6 cd2 0406-001172 diode-tvs;cds3c30gth,48/-/50v,smd 1 s.a ......6 l0405 0601-002461 led;smd,ingan blue,1.6x3.2x1.1mm,468nm,1 1 s.a ......6 u1 1209-001706 ic-sensor;ts08n,mlf,32p,5x5mm,plastic ,5v 1 s.a ......6 r110 2007-000081 r-chip;2.7kohm,5%,1/10w,tp,1608 1 s.a ......6 r110 2007-000081 r-chip;2.7kohm,5%,1/10w,tp,1608 1 s.a ......6 r110 2007-000105 r-chip;200kohm,5%,1/10w,tp,1608 1 s.a ......6 r110 2007-000107 r-chip;470kohm,5%,1/10w,tp,1608 1 s.a ......6 r110 2007-000123 r-chip;1.5kohm,5%,1/10w,tp,1608 1 s.a ......6 r110 2007-000123 r-chip;1.5kohm,5%,1/10w,tp,1608 1 s.a ......6 c120 2203-000257 c-cer,chip;10nf,10%,50v,x7r,tp,1608 1 s.a ......6 c120 2203-005065 c-cer,chip;1000nf,+80-20%,10v,y5v,1608 1 s.a ......6 c120 2203-005065 c-cer,chip;1000nf,+80-20%,10v,y5v,1608 1 s.a ......6 cn906 3711-006471 connector-header;box,5p,1r,1mm,smd- a,au, 1 s.a free datasheet http://
5-4 5. exploded view & part list ......6 pcb bn41-00947a pcb sub-funcition;mckinley function,fr-4 1 s.n.a 0.1 m0112 bn91-01877a assy shield;mckinley 19,ls19myw 1 s.n.a ..2 bn63-03965a shield-lamp;943bw/nw,spte,t0.3,(wide) 1 s.n.a 0.1 m0107 bn91-02069a assy lcd-ctz;ls19myn* 1 s.n.a ..2 m0215 bn07-00462a lcd-panel;m190a1-l07 1 s.a 0.1 m0017 bn91-02070a assy chassis-ctz;ls19mynkb/xsf 1 s.n.a ..2 m0081 6003-000115 screw-taptite;bh,+,b,m3,l6,zpc(blk),sw rc 2 s.a ..2 m0081 6003-000115 screw-taptite;bh,+,b,m3,l6,zpc(blk),sw rc 1 s.a ..2 m0081 6003-001439 screw-taptite;bh,+,- ,s,m4,l8,zpc(wht),sw 1 s.n.a ..2 m0174 bn44-00121k ip board;pwi1904sj(j),mckinley 943nw/ bw, 1 s.a ..2 t0514 bn61-03557a bracket-support;2043bw/ nw[mckinley],spte 1 s.n.a ..2 m0014 bn94-01702a assy pcb main-ctz;ls19mynkb/xsf 1 s.a ...3 t0245 0202-001608 solder-wire flux;lfc7-107,d0.8,99.3sn/0. 0.003 s.n.a ...3 cn101 3701-001219 connector-dsub;15p,3r,female,angle, auf 1 s.a ...3 cn600 3711-004261 header-board to board;box,12p,1r,2mm,ang 1 s.a ...3 t0174 bn97-02079a assy smd;ls19mynkb/xsf 1 s.n.a ....4 sub05 0202-001477 solder-cream;lst309-m,- ,d20~45um,96.5sn/ 0.457 s.n.a ....4 d108 0401-001056 diode-switching;mmbd4148se,100v,200m a,so 1 s.a ....4 d109 0401-001056 diode-switching;mmbd4148se,100v,200m a,so 1 s.a ....4 d110 0401-001056 diode-switching;mmbd4148se,100v,200m a,so 1 s.a ....4 d600 0402-001614 diode-rectifier;s1g,400v,1a,do-214ac,tp 1 s.a ....4 d601 0402-001614 diode-rectifier;s1g,400v,1a,do-214ac,tp 1 s.a ....4 zd104 0403-001411 diode-zener;-,5.49-5.73v,200mw,sod- 323,t 1 s.a ....4 zd105 0403-001411 diode-zener;-,5.49-5.73v,200mw,sod- 323,t 1 s.a ....4 zd202 0403-001411 diode-zener;-,5.49-5.73v,200mw,sod- 323,t 1 s.a ....4 zd203 0403-001411 diode-zener;-,5.49-5.73v,200mw,sod- 323,t 1 s.a ....4 zd204 0403-001411 diode-zener;-,5.49-5.73v,200mw,sod- 323,t 1 s.a ....4 zd601 0403-001411 diode-zener;-,5.49-5.73v,200mw,sod- 323,t 1 s.a ....4 zd201 0406-001061 diode-tvs;mmqa5v6t3,5.32/5.6/5.88v,24w,s 1 s.a ....4 q203 0501-000445 tr-small signal;ktc3875s- y,npn,150mw,sot 1 s.a ....4 q204 0501-000445 tr-small signal;ktc3875s- y,npn,150mw,sot 1 s.a ....4 q601 0501-000445 tr-small signal;ktc3875s- y,npn,150mw,sot 1 s.a ....4 q202 0501-002080 tr-small signal;2sc2412k,npn,200mw,s c-59 1 s.a free datasheet http://
5-5 5. exploded view & part list ....4 q205 0501-002080 tr-small signal;2sc2412k,npn,200mw,s c-59 1 s.a ....4 q207 0501-002080 tr-small signal;2sc2412k,npn,200mw,s c-59 1 s.a ....4 q409 0505-001165 fet-silicon;si3443bdv,p,-20v,+-4.4a,65mo 1 s.a ....4 ic112 1103-001410 ic-eeprom;s-24cs08afj-tb- 1ge,8kbit,1kx8, 1 s.a ....4 t0087 1203-003695 ic-posi.fixed reg.;ncp1117st33t3g,sot- 22 1 s.a ....4 t0087 1203-003696 ic-posi.fixed reg.;ncp1117dt18t5g,dpa k,3 1 s.a ....4 ic109 1205-003364 ic-lcd controller;se717m- lf,pqfp,128p,20 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000074 r-chip;100ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000080 r-chip;2kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000080 r-chip;2kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000082 r-chip;3.3kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000082 r-chip;3.3kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000083 r-chip;3kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000083 r-chip;3kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000084 r-chip;4.7kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000084 r-chip;4.7kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000088 r-chip;7.5kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a free datasheet http://
5-6 5. exploded view & part list ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000090 r-chip;10kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000102 r-chip;100kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000124 r-chip;2.2kohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000309 r-chip;10ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000309 r-chip;10ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-000821 r-chip;390ohm,1%,1/10w,tp,1608 1 s.a ....4 r110 2007-000821 r-chip;390ohm,1%,1/10w,tp,1608 1 s.a ....4 r110 2007-001044 r-chip;56ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-001044 r-chip;56ohm,5%,1/10w,tp,1608 1 s.a ....4 r110 2007-001164 r-chip;75ohm,1%,1/10w,tp,1608 1 s.a ....4 r110 2007-001164 r-chip;75ohm,1%,1/10w,tp,1608 1 s.a ....4 r110 2007-001164 r-chip;75ohm,1%,1/10w,tp,1608 1 s.a ....4 c120 2203-000236 c-cer,chip;0.1nf,5%,50v,c0g,1608 1 s.a ....4 c120 2203-000236 c-cer,chip;0.1nf,5%,50v,c0g,1608 1 s.a ....4 c120 2203-000236 c-cer,chip;0.1nf,5%,50v,c0g,1608 1 s.a ....4 c120 2203-000257 c-cer,chip;10nf,10%,50v,x7r,tp,1608 1 s.a ....4 c120 2203-000257 c-cer,chip;10nf,10%,50v,x7r,tp,1608 1 s.a ....4 c120 2203-000257 c-cer,chip;10nf,10%,50v,x7r,tp,1608 1 s.a ....4 c120 2203-000384 c-cer,chip;0.015nf,5%,50v,c0g,1608 1 s.a ....4 c120 2203-000626 c-cer,chip;0.022nf,5%,50v,c0g,1608 1 s.a ....4 c120 2203-000626 c-cer,chip;0.022nf,5%,50v,c0g,1608 1 s.a ....4 c120 2203-000626 c-cer,chip;0.022nf,5%,50v,c0g,1608 1 s.a ....4 c120 2203-000888 c-cer,chip;4.7nf,10%,50v,x7r,1608 1 s.a ....4 c120 2203-000888 c-cer,chip;4.7nf,10%,50v,x7r,1608 1 s.a ....4 c120 2203-000888 c-cer,chip;4.7nf,10%,50v,x7r,1608 1 s.a ....4 c120 2203-000888 c-cer,chip;4.7nf,10%,50v,x7r,1608 1 s.a ....4 c120 2203-000888 c-cer,chip;4.7nf,10%,50v,x7r,1608 1 s.a ....4 c120 2203-000888 c-cer,chip;4.7nf,10%,50v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a free datasheet http://
5-7 5. exploded view & part list ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005005 c-cer,chip;100nf,10%,16v,x7r,1608 1 s.a ....4 c120 2203-005065 c-cer,chip;1000nf,+80-20%,10v,y5v,1608 1 s.a ....4 c120 2203-005065 c-cer,chip;1000nf,+80-20%,10v,y5v,1608 1 s.a ....4 c120 2203-005065 c-cer,chip;1000nf,+80-20%,10v,y5v,1608 1 s.a ....4 c120 2203-005437 c-cer,chip;10000nf,+80-20%,10v,y5v,3216 1 s.a ....4 c231 2402-001128 c-al,smd;100f,20%,16v,-,tp,6.3x5.7mm 1 s.a ....4 c629 2402-001128 c-al,smd;100f,20%,16v,-,tp,6.3x5.7mm 1 s.a ....4 c639 2402-001128 c-al,smd;100f,20%,16v,-,tp,6.3x5.7mm 1 s.a ....4 x202 2801-003667 crystal-smd;14.31818mhz,30ppm,28- aan,16p 1 s.a ....4 t0568 3301-001407 bead-smd;30ohm,1608,300ma,tp,,,0.4ohm 1 s.n.a ....4 t0568 3301-001407 bead-smd;30ohm,1608,300ma,tp,,,0.4ohm 1 s.n.a ....4 cn400 3708-001150 connector-fpc/ffc/pic;30p,1mm,smd- a,sn,y 1 s.a ....4 t0077 bn41-00877a pcb main;mckinley,cem-3 silver,2,mp1.0,1 1 s.n.a ....4 m0018 bn97-02035a assy micom;mckinley,lmy19ns,mx25l1005 ,20 1 s.n.a .....5 ic115 1107-001614 ic-flash memory;mx25l1005,1mbit,1mx1bit, 1 s.n.a ..2 m0251 bn96-02854n assy cable p;fininfarina,flat cable,-,15 1 s.a ..2 m0006 bn96-06381r assy shield p-cover;943nw(cmo panel),sec 1 s.n.a ...3 t0073 aa63-01141c gasket-emi;42d5,t1.5,10,40,fabric 4 s.n.a ...3 t0527 aa65-00011c clamper core-wire;all model,nylon 66,v2, 1 s.n.a ...3 bn61-02429d stud-pem;pnb,m2.8,d7,l20,zpc(sil),sum2 4l 1 s.n.a ...3 bn61-03573f bracket-support stand;ls19myw,secc,t1.6, 1 s.n.a ...3 bn61-03594a spring etc-stand;mckinley,sus304,t0.3,si 1 s.n.a ...3 m0107 bn63-03962d shield-cover;ls19myw,secc,t0.8,boe panel 1 s.n.a 0.1 m0113 bn92-02621z assy p/material;ls19mywkba/xsf* 1 s.n.a ..2 t0376 6902-000061 bag air;ldpe,t0.2,l1000,w500,trp,,, 0.005 s.n.a ..2 t0524 6902-000241 bag pe;nitron/hdpe,t0.5/t0.012,w600,l600 1 s.n.a free datasheet http://
5-8 5. exploded view & part list ..2 t0376 6902-000379 bag air;ldpe,t0.2,w1000,l1800,trp,-,-- 0.001 s.n.a ..2 t0003 6902-000604 bag wrapping;ldpe,t0.02,w500,l10000,t rp, 0.79 s.n.a ..2 m0081 6902-000609 bag roll;ldpe,t0.05,w2400,l1000,trp,-,- 0.017 s.n.a 0.1 m0019 bn92-03163n assy label;ls17myakb/xaz 1 s.n.a 0.1 m0003 bn92-03351e assy box;ls19mynkfz/xbm 1 s.n.a ..2 bn69-02296a box-02,monitor;943NWX-simple,cb,sy- 01,a1 1.02 s.n.a 0.1 m0045 bn92-03437b assy accessory;ls19mynkfz/xbm 1 s.n.a ..2 m0003 bn96-06388a assy stand p;-,943bw,-,secc t2.0,-,- 1 s.a ...3 bn63-03985a cover-stand front;ls19myw,hips hb,bk26,s 1 s.n.a ...3 bn63-03992a cover-stand rear;ls19myw,hips hb,bk26,si 1 s.n.a ...3 t0022 bn96-06383a assy hinge p-simple;943bw,spcc, hgi,t2.0 1 s.n.a ...3 t0524 6902-000675 bag pe;ldpe,t0.05,w200,l250,pink,28,-,3 1 s.n.a ...3 m0081 6003-000282 screw-taptite;bh,+,- ,b,m3,l8,zpc(blk),sw 4 s.a ..2 m0027 bn96-06672a assy stand p-base;ls17my,abs hb,bk26,h/g 1 s.a ...3 t0524 6902-000110 bag pe;ldpe,t0.05,w250,l400,trp,28,2 1 s.n.a ...3 cis4 bn61-01717a holder-stand;bizet,ni plt,ch,+,m4,l11(5) 1 s.n.a ...3 ccm1 bn63-02183k cover-sheet;rhcm,pe vinyl,t 0.05,250mm,2 0.25 s.n.a ...3 t0004 bn63-04210a cover-stand base;943bw,743b,743bm,ab s,hb 1 s.n.a ...3 bn96-06529a assy holder p-wire;mckinley,abs hb,bk26 1 s.n.a ....4 6902-000336 bag zipper;ldpe,t0.05,w70,l80,trp,-,-- 1 s.n.a ....4 m0114 bn61-03555a holder-wire;mckinley,abs hb,bk26 1 s.n.a ...3 t0132 bn73-00077a rubber foot;matisse,bumpon,13.5,t2. 0,6 4 s.n.a ..2 bn96-07639b assy accessory- cable&manual;ls19mynkfz/x 1 s.a ...3 t0268 3903-000085 cbf-power cord;dt,us,bp3/yes,i(iec c13/c 1 s.a ...3 t0524 6902-000110 bag pe;ldpe,t0.05,w250,l400,trp,28,2 1 s.n.a ...3 t0175 aa68-03727a manual flyer-01,warranty card;all,samsun 1 s.n.a ...3 bn63-02368a cloth;ls07btt,suede,0.6,160,120 1 s.n.a ...3 m0215 bn96-06906a assy manual p- ib+qsg;943nw,943NWX,mojo 8 1 s.n.a ....4 ccm1 bn59-00666a s/w driver-02,ib;943nw,943nws,w/ w,syncma 1 s.n.a ....4 qsg bn68-01377a manual flyer-qsg;2043bw,syncmaster,w/ w,m 1 s.n.a ..2 m0114 bn39-00244g cbf signal;d-sub cable,15p/15p,20276n,15 1 s.a free datasheet http://
1-1 1. precautions 1. precautions 1-1. safety precautions follow these safety, servicing and esd precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1-1. warnings for continued safety, do not attempt to modify the circuit board. disconnect the ac power and dc power jack before servicing. 1-1-2. servicing the lcd monitor when servicing the lcd monitor, disconnect the ac line cord from the ac outlet. it is essential that service technicians have an accurate voltage meter available at all times. check the calibration of this meter periodically. 1-1-3. fire and shock hazard before returning the monitor to the user, perform the following safety checks: inspect each lead dress to make certain that the leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the monitor. inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and compartment covers or shields, isolation resistorcapacitor networks, mechanical insulators, etc. leakage current hot check (figure 1-1): warning : do not use an isolation transformer during this test. use a leakage current tester or a metering system that complies with american national standards institute (ansi c101.1, leakage current for appliances), and underwriters laboratories (ul publication ul1410, 59.7). with the unit completely reassembled, plug the ac line cord directly into a 120v ac outlet. with the units ac switch frst in the on position and then off, measure the current between a known earth ground (metal water pipe, conduit, etc.) and all exposed metal parts, including: metal cabinets, screwheads and control shafts. the current measured should not exceed 0.5 milliamp. reverse the power-plug prongs in the ac outlet and repeat the test. 1-1-4. product safety notices some electrical and mechanical parts have special safetyrelated characteristics which are often not evident from visual inspection. the protection they give may not be obtained by replacing them with components rated for higher voltage, wattage, etc. parts that have special safety characteristics are identifed by on schematics and parts lists. a substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fre and/or other hazards. product safety is under review continuously and new instructions are issued whenever appropriate. 1. 2. 1. 2. 1. 2. 3. 4. device under test (reading should) not be above 0.5ma leakage current tester test all exposed metal surfaces 2-wire cord *also test with plug reversed (using ac adapter plug as required) earth ground figure 1-1. leakage current test circuit free datasheet http://
1-2 1. precautions 1-2. servicing precautions warning: an electrolytic capacitor installed with the wrong polarity might explode. caution: before servicing units covered by this service manual, read and follow the safety precautions section of this manual. note: if unforeseen circumstances create confict between the following servicing precautions and any of the safety precautions, always follow the safety precautions. 1-2-1 general servicing precautions always unplug the units ac power cord from the ac power source and disconnect the dc power jack before attempting to: (a) remove or reinstall any component or assembly, (b) disconnect pcb plugs or connectors, (c) connect a test component in parallel with an electrolytic capacitor. some components are raised above the printed circuit board for safety. an insulation tube or tape is sometimes used. the internal wiring is sometimes clamped to prevent contact with thermally hot components. reinstall all such elements to their original position. after servicing, always check that the screws, components and wiring have been correctly reinstalled. make sure that the area around the serviced part has not been damaged. check the insulation between the blades of the ac plug and accessible conductive parts (examples: metal panels, input terminals and earphone jacks). insulation checking procedure: disconnect the power cord from the ac source and turn the power switch on. connect an insulation resistance meter (500 v) to theblades of the ac plug. the insulation resistance between each blade of the ac plug and accessible conductive parts (see above) should be greater than 1 megohm. always connect a test instruments ground lead to the instrument chassis ground before connecting the positive lead; always remove the instruments ground lead last. 1-3. static electricity precautions some semiconductor (solid state) devices can be easily damaged by static electricity. such components are commonly called electrostatically sensitive devices (esd). examples of typical esd are integrated circuits and some feld-ef fect transistors. the following techniques will reduce the incidence of component damage caused by static electricity. immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your body by touching a known earth ground. alternatively, wear a discharging wrist-strap device. to avoid a shock hazard, be sure to remove the wrist strap before applying power to the monitor. after removing an esd-equipped assembly, place it on a conductive surface such as aluminum foil to prevent accumulation of an electrostatic charge. do not use freon-propelled chemicals. these can generate electrical charges suffcient to damage esds. use only a grounded-tip soldering iron to solder or desolder esds. use only an anti-static solder removal device. some solder removal devices not classifed as anti-static can generate electrical charges suffcient to damage esds. do not remove a replacement esd from its protective package until you are ready to install it. most replacement esds are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or other conductive materials. immediately before removing the protective material from the leads of a replacement esd, touch the protective material to the chassis or circuit assembly into which the device will be installed. caution: be sure no power is applied to the chassis or circuit and observe all other safety precautions. minimize body motions when handling unpackaged replacement esds. motions such as brushing clothes together, or lifting your foot from a carpeted foor can generate enough static electricity to damage an esd. 1. 2. 3. 4. 5. 6. 1. 2. 3. 4. 5. 6. 7. 8. free datasheet http://
1-3 1. precautions 1-4. installation precautions for safety reasons, more than two people are required for carrying the product. keep the power cord away from any heat emitting devices, as a melted covering may cause fre or electric shock. do not place the product in areas with poor ventilation such as a bookshelf or closet. the increased internal temperature may cause fre. bend the external antenna cable when connecting it to the product. this is a measure to protect it from being exposed to moisture. otherwise, it may cause a fre or electric shock. make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. also check the antenna cable or the external connectors if they are fully unplugged. damage to the cord may cause fre or electric shock. keep the antenna far away from any high-voltage cables and install it frmly . contact with the highvoltage cable or the antenna falling over may cause fre or electric shock. when installing the product, leave enough space (10cm) between the product and the wall for ventilation purposes. a rise in temperature within the product may cause fre. 1. 2. 3. 4. 5. 6. 7. free datasheet http://
1-4 1. precautions memo free datasheet http://
2-1 2. product specifcations 2. product specifcations 2-1. feature & specifcations model 943nw / 943NWX feature panel specifcations: 300 cd/m2, 5 ms, cr 1000:1, 170/160 (cr>10) dpms : <1w tco03 off-timer function for reducing standby power usages windows vista authentication picture;a screen size desire supported color effect: black and white/sepia/aqua/green ? ? ? ? ? ? ? specifcations item description lcd panel tft-lcd panel, rgb vertical stripe, normally white transmissive, 19 wide viewable 0.258(h) mm x 0.258(v) mm pixel pitch scanning frequency horizontal : 30 khz ~ 81 khz (automatic) vertical: 56 hz ~ 75 hz(wsxga+ : 60hz) display colors 16.7 million colors maximum resolution horizontal: 1440 pixels vertical: 900 pixels input signal analog input sync signal seperate h/v sync, composite h/v, sync-on-green level: ttl level maximum pixel clock rate 137 mhz active display (horizontal/vertical) 408.24(h) x 255.15(v) ac power voltage & frequency ac 110v~130v, 60hz & ac, 200v~240v 50hz power consumption 38 w (max) dimensions set (w x d x h) simple stand 439 x 68.4 x 290 mm [without stand] 439 x 185 x 368 mm [with stand] has stand 439 x 65.5 x 290 mm [without stand] 439 x 190 x 357.3mm [with stand] weight (set/package) simple stand set : 3.5 kg [without stand], 3.8 kg [with stand] package : 5.1 kg has stand set : 3.5 kg [without stand], 5.0 kg [with stand] package : 6.55 kg environmental considerations operating temperature: 10?c ~ 50?c(50?f ~ 122?f) operating humidity : 10% ~ 90% operating temperature: -20?c ~ 45?c(-4?f ~ 113?f) operating humidity: 5% ~ 90% note: designs and specifcations are subject to change without prior notice. free datasheet http://
2-2 2. product specifcations 2-2. spec comparison to the old models model mckinley(943nw / 943NWX) mendel(931bw) design size 19 19 resolution 1440 x 900 1440 x 900 input analog / dvi digital with hdcp analog / digital with hdcp response time 5ms(w to b) 4ms(g to g) viewing angle 170/160(cr>10) 160/160(cr>10) brightness 300cd/m2 300cd/m2 contrast 1000:1 700:1 magicbright 7 step 7 step feature magic color color effect magic bright3 magic tune (premium) magic color magic bright3 magic tune (premium) *color effect - grey scale: images are displayed in a grey tone on the screen. - green: images are displayed in a green tone on the screen. - aqua: images are displayed in a blue tone on the screen. - sepia: images are displayed in a brown tone on the screen. image size : if the resolution is not wide resolution, this option allows the screen size to be selected as normal or wide. free datasheet http://
2-3 2. product specifcations 2-3. accessories product description ccde. no remark quick setup guide bh68-00376l samsung electronics service center warranty card (not available in all locations) bh68-00633b users guide, monitor driver, natural color pro software bn59-00585a d-sub(15 pin) cable bn39-00244g power cord 3903-000082 2-4. accessories (sold separately) product description ccde. no remark dvi cable bn39-00246k samsung electronics service center free datasheet http://
2-4 2. product specifcations memo free datasheet http://
7-1 7. schematic diagram 7. schematic diagram 7-1. circuit descriptions location function remark scaler ic200 besides the adc, lvds, and scaling part, an mcu is embedded as well. all of them are integrated into one chip. se556m-lf flash memory ic201 stores the mcu program embedded in the scaler. it is of a fash type and rewritable. mx25lv512 ic203 stores the osd and various timing values. 24c08 ic202 the memory to which digital ddc data is input 24c02 regulator an ic that receives dc voltage inputs. it is used in circuits that stabilize the dc voltage. ncp117dt18t5g apl1117-33vc free datasheet http://
7-2 7. schematic diagram 7-2. schematic diagrams (scaler part) p a n e l 2 4 c 0 8 e e p r o m 1 m b f l a s h i n t e r f a c e e n g i n e i n v e r t e r 3 . 3 v r e g u l a t o r 1 . 8 v r e g u l a t o r 1 4 . 3 1 8 m h z x t a l ( p c ) a n a l o g r g b h s y n c v s y n c f u n c t i o n k e y d i s p l a y p r o c e s s i n g e n g i n e l v d s p a n e l i n t e r f a c e o s d c l o c k g e n e r a t o r m c u s e 7 1 7 m - l f + 5 + 5 + 5 + 5 8 b i t 8 b i t + 5 + 5 i s p i s p 7-3. schematic diagrams (power flowchart) i c 6 0 1 ( n c p 1 1 1 7 s t 3 3 t 3 g ) i c 6 0 2 ( n c p 1 1 1 7 d t 1 8 1 5 g ) i p b o a r d i p b o a r d i c 2 0 3 ( a t 2 4 c 0 8 ) i c 2 0 0 s c a l e r 5 v 3 . 3 v 1 . 8 v i c 2 0 1 ( m x 2 5 l 1 0 0 5 m c ) p a n e l 5 v 3 . 3 v 3 . 3 v free datasheet http://
7-3 7. schematic diagram 7-4. schematic diagrams (ip board) smps part ? free datasheet http://
7-4 7. schematic diagram inverter part ? free datasheet http://
7-3 7. schematic diagrams 7-5. schematic diagrams (main pba) this document can not be used without samsungs authorization. 105'c 105'c 105'c sdr3.3 vddc vddp avdc1.8 vddc vddp vdvi sdr3.3 avdc3.3 avdc3.3 avdc1.8 vdvi chk_dsub 56ohm 100pf +3.3v_diode r111 390ohm c110 4.7nf 4.7nf 4.7nf 10nf 4.7nf 4.7nf red+ red- blu+ hsync vsync +3.3v_diode 15pf bav99 100ohm c108 4.7nf 2sc2412k-q ddc_sda_vga ddc_scl_vga 56ohm c106 c107 grn+ c111 2 blu- c112 r122 grn- 100ohm 100ohm agnd agnd q205 100kohm r225 10kohm r222 2 1 c116 1 r121 2 1 bd102 2 1 bd101 2 1 zd104 2 1 zd105 mgnd2 mgnd1 9 8 7 6 5 4 3 2 12 11 10 1 cn600 2 1 c230 2 1 c610 1 +3.3v 1 +14v 2 1 r226 c632 c631 r233 r215 3 2 1 q201 r234 r216 c228 c213 c229 r223 c209 r217 c207 c211 x201 c210 r232 r273 c212 99 98 97 96 95 94 93 92 91 90 9 89 88 87 86 85 84 83 82 81 80 8 79 78 77 76 75 74 73 72 71 70 7 69 68 67 66 65 64 63 62 61 60 6 59 58 57 56 55 54 53 52 51 50 5 49 48 47 46 45 44 43 42 41 40 4 39 38 37 36 35 34 33 32 31 30 3 29 28 27 26 25 24 23 22 21 20 2 19 18 17 16 15 14 13 128 127 126 125 124 123 122 121 120 12 119 118 117 116 115 114 113 112 111 110 11 109 108 107 106 105 104 103 102 101 100 10 1 ic200 2 1 c220 1 +5v_panel tp1 +1.8v +5v_ip_3 key1_out key2_out led_g gnd_7 gnd_6 gnd_5 bl_en bl_adj_analog +5v_ip_2 +5v_ip_1 gnd_9 gnd_8 bl_adj_pwm gnd_4 gnd_3 r229 r270 r230 3 2 1 q203 r235 c208 r218 r219 3 2 1 q204 r271 r211 r210 c234 r253 r252 r212 r213 sda scl wc vcc vss e2 nc_2 nc_1 gnd_10 wp so cs vcc_f si sclk hold c622 c621 c620 c619 c618 c617 c614 c613 c612 c641 c636 c635 c638 c627 c626 c623 c600 c605 c601 c604 c603 c630 c628 c640 c637 c206 r214 r255 r612 lvb0m lvb0p lvb1m lvb1p lvb2m lvb2p lvbckm lvbckp lvb3m lvb3p lva0m lva0p lva1m lva1p lva2m lva2p lvackm lvackp lva3m lva3p 8 7 6 5 4 3 2 1 ic203 8 7 6 5 4 3 2 1 ic201 r236 2 1 c231 mgnd2 mgnd1 9 8 7 6 5 4 30 3 29 28 27 26 25 24 23 22 21 20 2 19 18 17 16 15 14 13 12 11 10 1 cn400 r224 q202 6 5 4 3 2 1 q206 2 1 c629 mgnd1 3 2 1 ic601 d601 d600 3 2 1 ic602 2 1 c639 zd601 r209 r208 r245 r250 r251 zd204 zd203 zd202 c205 c221 c204 c218 3 2 1 q601 r601 r602 r600 r126 c202 c201 c115 c117 c125 c124 d108 d110 d109 r131 r130 r125 c109 r123 r119 r115 r112 r116 r207 r113 r114 r117 r118 r120 r206 zd201 mgnd2 mgnd1 9 8 7 6 5 4 3 2 15 14 13 12 11 10 1 cn101 100ohm edid_protect lvbckp lvbckm lvb2p lvb2m 3kohm 1uf panel_en 5.6v 100uf ncp1117dt18t5g 100nf 16v 100uf 16v 10kohm 16v 100nf 16v s1g 400v 400v s1g 100uf 100nf 16v 100nf ncp1117st33t3g 100nf 100nf 16v 16v 16v 16v 16v 100nf 100nf 50v ddc_scl_vga 10kohm rx2- 3kohm mcl 5.6v 100ohm 3.3kohm 50v 50v s-24cs08afj-tb-1ge 3.3kohm 100pf 14.31818mhz lva3m 2sc2412k-q 10kohm ktc3875s-y 1uf chk_dvi panel_en ktc3875s-y 10v key1 hdcp_hotplug key2 bl_adj_pwm 10kohm 100ohm 4.7kohm lvb3m lvb0p bl_en 50v 10ohm 100ohm 100nf 100nf 16v 10kohm si3443bdv 1uf sdo bl_adj_analog 10kohm 4.7kohm ktc3875s-y 16v 16v 100nf 100nf 100nf 16v 16v 10v 10v ddc_scl_dvi ddc_sda_dvi sog grn+ 10kohm 10kohm 10kohm 100nf 16v 100nf 75ohm 100ohm 100nf 10kohm f_protect ktc3875s-y 2kohm lvb1p 100nf 10kohm 100nf 16v lvackm lvackp lva3m lva3p f_protect mda led_green ddc_sda_vga vsync hsync red+ red- grn- blu+ blu- rxc- rxc+ rx0- rx0+ rx1- rx1+ rx2+ wr_protect chk_dsub sdi sck csz lvb0m lvb0p lvb1m lvb2m lvb2p lvbckm lvbckp lvb3m lvb3p lva0m lva0p lva1m lva1p lva2m lva2p sdo 16v lva0p 2kohm 100nf lvackm lva1p lva1m 10kohm 5.6v 75ohm 75ohm csz 5.6v 5.6v 10kohm 100ohm 100ohm 16v 100nf 16v 16v 100nf 16v 100nf lva2m 50v lvackp 390ohm 4.7kohm 22pf lva0m lvb3p 50v sog lvb1p lvb1m lva2p lva3p lvb0m 16v 100nf 16v 100nf 16v 16v 16v 16v 100nf 16v 16v 100nf 16v 100nf 16v 16v 100nf 100nf 16v 100nf 100nf 16v 100nf 16v 100nf 22pf 100pf 10v 10uf sck sdi mx25l1005mc-12g 100ohm 100ohm 100ohm 10kohm 10kohm 10kohm 10kohm 10ohm 16v 100nf 100ohm 16v 100nf bl_adj_analog 100ohm led_green 50v 10nf 100ohm key1 key2 10kohm 100nf bav99 50v 22pf 100nf 16v bav99 5.6v 100nf 16v bl_adj_pwm 16v bl_en 50v 10nf mda mcl wr_protect 100ohm cn_s_012_g2 smaw200a-12p 100nf 7.5kohm +5v_edid agnd agnd agnd agnd agnd agnd agnd +1.8v agnd +5v_ip agnd +5v_ip agnd agnd agnd agnd agnd agnd +5v_ip agnd +1.8v +3.3v agnd agnd +3.3v +5v_ip agnd agnd agnd +3.3v +5v_panel +5v_ip agnd +1.8v +3.3v +3.3v +1.8v agnd agnd +3.3v agnd agnd +14v agnd agnd +1.8v agnd agnd +3.3v agnd +3.3v +5v_ip +3.3v agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd +1.8v +3.3v +5v_panel agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd agnd +5v_ip agnd +3.3v agnd agnd agnd agnd agnd out out c4 a2 c3 c2 a1 c1 out out out out out out out out out out in in out out out in out out out e b c in in in in in in in in in in in in in in in in in in in in in out out out out in out out in in out out out out out out out out out out out out out out out out out out out out gpio_p01/sar2 gpio_p02/sar3 gpio_p06 gpio_p07 gpio_p26/pwm2 vddc xout xin gpio_p00/sar1 gpio_p17/sar0 nc nc nc nc vddp gnd vddp gpio_p25 gpio_p43 gpio_p12/pwm3 rst vddp gnd gnd vddc vctrl bypass gnd lvackm lvackp lva3m lva3p gpo[6] gpo[7] vddc gpo_p03/pwm3 gnd vddp nc gnd gnd nc vddp vddp nc gnd gnd nc vddp i2c_mcl/gpio_p10 i2c_mda/gpio_p11 mode gpio_p23/pwm1 ddca_scl ddca_sda vsync0 hsync0 refp refm gnd rin0p rin0m sogin0 gin0p gin0m bin0p bin0m avdd_18 avdd_33 rxckn rxckp gnd rx0n rx0p avdd_33 rx1n rx1p gnd rx2n rx2p avdd_33 rext ddcd_scl ddcd_sda gpio_p16 gpio_p15 gpio_p14/pwm0 vddp vddp vddp gpo[0] gpo[2] gpo[4] vddp vddc gnd gpio_p27/pwm2 gpio_p24 gpio_p42 gpio_p41 gpio_p04 gpio_p05 gpio_p22 sdi sck csz lvb0m lvb0p lvb1m lvb1p lvb2m lvb2p lvbckm lvbckp lvb3m lvb3p nc nc gnd vddp lva0m lva0p lva1m lva1p lva2m lva2p sdo gnd out e b c out e b c in in in in in in sda vss /wc vcc scl e2 nc nc si gnd hold# vcc sclk wp# so cs# in in in in in in in in in in in in in in in in in in in in in e b c e b c d d s g d d out gnd out in vin vout adj in out out in in in e b c out 4&.-' scaler : se657mrh-lf scaler : se757mh-lf analgo part inverter & function connector free datasheet http://
4-1 4. troubleshooting 4. troubleshooting 4-1. troubleshooting set custom mode as follows before beginning a repair. ? resolution: 1440 x 900 ? v-frequency: 60 hz if the screen is blank, check whether the power cord is connected correctly. the circuits to check: ? when the raster does not appear: the function pcb, main pcb, i/p pba ? when 5v is generated but a blank screen is displayed: main pcb ? when 5v is not generated: i/p pba press the menu button and hold down the, (enter, source) button for more than fve (5) seconds to return the monitor to factory mode. 1. 2. 3. 4. free datasheet http://
4-2 4. troubleshooting 4-2. when the power does not turn on symptom - when turning on the power button after connecting the power cable, the led at the front of the monitor does not operate. major checkpoints - when turning on the power button after connecting the power cable, the led at the front of the monitor does not operate. - check the ip board power fuse and the ip board output power. - check the connections for the ip board and the main board inside the monitor. - check the main board power part and also check whether there is any abnormal output at any of the other output terminals. cn 600 ic 602 ic 601 diagnostics yes check the connection status for the function assy. yes replace the ip board. no is dc 5v measured at pins 5, 6 of the cn600 connector when pins 3, 4 are 0v? iis dc 3.3v measured at pin 3 of ic601 when pin 1 is dc 5v? check the circuits related to ic601. no yes check the circuits related to ic602. no is dc 1.8v measured at pin 2 of ic602 when pin 3 is dc 5v? yes check and replace the ip board. caution make sure to disconnect the power before working on the ip board. free datasheet http://
4-3 4. troubleshooting 4-2-1. circuit diagrams when the power does not turn on free datasheet http://
4-4 4. troubleshooting 4-3. when the screen is blank (analog) symptom - leven though the led power turns on, the screen is blank when connecting the vga cable. major checkpoints - even though the led power turns on, the screen is blank when connecting the vga cable. - check the d-sub cable connections. - check whether the lvds cable is connected correctly to the panel. - check whether the lamp connector of the panel is connected correctly to the ip board. cn 400 x 201 ic 200 r111, r114, r118 diagnostics yes check the signal cables and their connections. yes no check the r111, r114, and r118 input terminals. no check the circuits related to ic200. no check the circuits related to cn400. do output signals appear at pins 8 to 30 of cn400? no is dc 5v measured at pins 1, 2, and 3 of the cn400? do the hsync and vsync waveforms appear at pins 32, 33 of ic200, respectively? do the rgb inputs appear at r111, r114, and r118? is x201 oscillating correctly? check and replace the panel. no check and replace the circuits related to x201. yes yes yes check the +5v_panel signal and the bl_en signal. yes caution make sure to disconnect the power before working on the ip board. free datasheet http://
4-5 4. troubleshooting 4-3-1. when a blank screen is displayed (analog) 3 4 free datasheet http://
4-6 4. troubleshooting 4-3-2. waveforms when no screen is displayed (analog) free datasheet http://
4-7 4. troubleshooting 4-4. error examples and actions error appearance symptoms and actions remarks symptom: dvi signals are not recognized. cause: this error occurs because the pc cannot recognize the mode information since the dvi ddc is not input to the monitor. action: input the dvi ddc. *on how to input ddc, refer to the training manual. symptom: a full white screen is displayed regardless of the signals when turning on the monitor. cause: this error occurs when only lamp power is supplied and the video signals are not input to the panel due to an lvds cable connection error. action: replace the lvds cable or connect the cable correctly so that the video signals can be supplied to the panel. * a full white pattern is a feature of a tn panel when no video signals are supplied. free datasheet http://
4-8 4. troubleshooting 4-5. adjustment 4-5-1. service adjustment conditions precautions before a service adjustment 1) check whether the devices for the service adjustment are operating normally. 2) secure a space that is suffciently wide for disassembling the monitor. 3) prepare a soft mat on which the monitor will be disassembled. entering service mode entering: menu brightness 0 contrast 0 hold down the enter button for fve (5) seconds. exiting: power off power on basic service items to perform after replacing a board 1) check the pc color adjustment status. 2) input ddc (input both of analog and digital). 3) check whether the appropriate mcu code for the model is input. 4) hard power the monitor off after entering service mode and performing a reset. ddc edit data input 1) use when updating the ad board code. 2) download the winddc program, ddc input program, and hex and ddc fles appropriate to the model through the quality control department of samsung electronics. install the jig and input the data, as shown in the fgure. monitor needing adjustment parallel connector (25p cable) connect monitor (signal cable) mti-2031 ddc manger 1. 2. 3. 4. free datasheet http://
4-9 4. troubleshooting 4-5-2. service function specifcations checking the code version 1. check the mcu code version and checksum after entering svc mode. 2. entering svc mode - adjust the brightness and contrast values to 0. - hold down the enter button for fve (5) seconds. - the svc function osd is displayed. - to exit the svc function, turn the power off. 3. safe mode - when the input signal is higher than the supported frequency of the product, safe mode gives users some time (one minute) to change the video card settings to the recommended mode settings. service mode (moving around) 1. press the + button to move to other items. ? ? panel information micom version micom checksum select the auto auto option select the pixelshift option. country scaler vender free datasheet http://
4-10 4. troubleshooting 2. press the - button to change the setting to on or off. when replacing the panel after replacing the panel, move to the panel item and hold down the menu button for fve (5) seconds. the ch. no is incremented by 1 and then both the on time and cycle are set to 0. ? this number is incremented by 1. free datasheet http://
4-11 4. troubleshooting inputting the ddc data use the ddc manager mti-2050 version or later. 1) click the open [f5] icon. 2) select a port. 3) open a ddc fle. 4) select a date and click the ok [save] button. 5) click the next [ok] button. 6) enter the serial number and then press the enter button when inputting digital data after inputting analog data, repeat steps 2 to 5. ? 1 2 3 4 5 6 free datasheet http://
4-12 4. troubleshooting inputting the mcu data 1) check the following options. - manufacture: mstar - device type:tsum16_rom128k_ext_fash - communication port: dsub15 (analog) - external memory: pmc25lv010e 2) click the loadfile button, select an mcu code fle, and then click the open [o] button. ? 1 2 free datasheet http://
4-13 4. troubleshooting 3) click the auto program button. 4) when programming and verifcation are complete, hard power the monitor off and then on again. 3 free datasheet http://
4-14 4. troubleshooting memo free datasheet http://
6-1 6. wiring diagram 6. wiring diagram 6-1. wiring diagram - main board lamp wire for panel lvds for panel vga input free datasheet http://
6-2 6. wiring diagram 6-2. wiring diagram - ip board function connector (connect to ip-board) rgb connector (pconnect to pc) lvds connector (connect to panel) ip board eeprom 3708-001150 scaler se717m-lf 3711-003847 3701-001219 flash memory free datasheet http://
6-3 6. wiring diagram 6-3. connector functions connector functions cn600 supplies 5v from the power board to the main board and transmits the pwm output from the power board to the inverter. *when a problem occurs: the no power and blank screen errors may occur. cn1 ~ cn4 in transmits the lamp current (6ma ~ 7ma) generated in the inverter to the lamp of the panel. * when a problem occurs: the blank screen error may occur. cn101 connects the function board. * when a problem occurs: the no led screen and function failure errors may occur. cn400 transmits the lvds signals from the main board to the panel. * when a problem occurs: the blank screen and no power errors may occur. 6-4. cables use lvds 30p ffc cable code bn96-02854j photo free datasheet http://
6-4 6. wiring diagram memo free datasheet http://

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