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1. 1 1 1 00 OHM 1 4W C913 iiri 1903 Fa 14 5V 5916 222 0901 2 1 1 1uH C89 100E450V 18042 R909 B9 R924 JUMPER 5h 1500PF2KV 100K OMH 2W 5 00 OHM 1 4W 1000HM 2W Soa 0905 1 72 168 8 C917 9 1 M 2 1000UF25V R925 8 470R 1 10W 5 585150 79 loy 28 coos KTD1028 B25 1uF 450V T901 R926 a 67G215810915T 1 R908 C916 1K 1 10W 1 m 20K OHM 1 4W 12 0 001 T 111 R918 z D903 00 1 4W FR107 1904 5V 82 7 R919 21 11 Sas 8 00 OHM 1 4W 1 952 D902 5 FR103 R920 JUMPER R910 10 00 OHM 1 4W 4 OHM 1 4W 9 C918 C919 C920 HOOOUF16V t000UF46V ATOUF16V IF S0V D906 gt 8 POWER 31DQ06FC3 H 57 0904 20903 20902 99 D90 vzo NC RLZ5 6B gt IN4148 NC 4 4 936 398 24 T 1 BNO HV COMPNC E 05 VCC 11 FMAO7N65GX 25 5 GNDOUT T OR TAW 5 58 5 LD7577PS R912 Svea Sens C910 10K 1 28277529 0 1uF 25V FB901 BEAD R922 1K 1 10W 196 U902 PC123X2Y NR901 R913 NTCR 220 OHM 1 4W AAS ZOF R929 43 2K OHM 1 1 8W R928 3 65K OHM 1 1 10W 61G080510 F901 0 10 16 FUSE R923 1K 1 10W 1 U903 C901 C902 1000PF 250VAC 1000 250 C908 C900 0 01uF 3300pF 250V2. Q301 401 0301 NC AO4411 C302 5V 0 22uF 16V PANEL 5 TOM 5 TOP 5 5 TIP 5 T2M 5 T2P 5 TCLK1M 5 TCLKAP 5 T3M 5 5 5 T4P 5 T6M 5 TeP 5 TCLK2M 5 TCLK2P 5 T7M 5 CN301 LVB2M LVBOM RXOO 1 LVBOP RXOO 2 LVBIM RXO1 3 RXO2 LVB2P RXO2 LVBCKM__RXOC LVBCKP RXOC loc LVB3M RXO3 LVB3P LVAOP RXO3 11 LVA1M LVA2M RXE1 RXE2 LVA2P LVACKP RXEC RXE2 LVA3M RXE3 22 LVA3P RXE3 220 OHM 1 4W 4K7 1 16W 5 3D C303 R308 1uF 16V 10K 1 16W 596 gt 1 2 G S AO3401L gt Both CN403 CN404 and CN405 foot print VCC3 3 CN403 R436 NC ag 4 R437 4 3 6 5 R443 gt R444 gt R445 gt 1 7 5 e E CN401 5 5 6 x x 5 o E E 4 e 3 5227 22 41 2 CN404 R438 1 ORO5 1 16W 1 1 1 2 KEY2 3 11111 POWER_KEY NC CONN 4 LED GRN BLUE 5 LED ORANGE 1 d C431 C432 C433 C434 C435 ORO5 1 16W o NC CONN 2 gt gt 2 2 20401 20402 Both CN401 and CN402 foot print 5 5 5 5 S 2 E TT CN402 VCC3 3 7 6 4 1 3 CN405 2 FB402 2 5 NC
3. 13 14 E cm C D Rear cover and hinge ASS Y 15 16 Disassemble the hinge and stand Hinge top hinge and stand 10 BLOCK DIAGRAM gno jONUOD a2uanbas SUE 4 1 77777777777 GOEN jndjno SQAT x20 g sseujubug 01 07842 1ndu ASL corn ysel 2195 2 94 99891 dv 1955 uod ansq oada 70 5 dOLI2 007 0245 ndui 13M04 2 LOX 1815 00 LOLND 5 11 BLOCK DIAGRAM POWER EMI filter Rush Rectification Transformer Diode prevention rectifier Starting resistor ye Switching eedbac 5V 14 5V circuit PWM 2 control output OVP amp circuit MOSFER OVP protect circuit Inverter 7 14 5V Transformer LC resonance Push pull N circuit conversion N OVP circuit 2 CCFL lamps Feedback Sampling Lamp open circuit protection PWM IC OZ9938GN DIM DIM circuit 62 12 DESCRIPTION OF BLOCK DIAGRAM 1 Video Controller Part This part amplifies the level of video signal for the digital conversion and converts from the analog video signal to the digital video signal using a pixel clock The pixel clock for each mode is generated by the PLL The range of the pixel
4. C406 154 C442 0 10 16V 0 1UF 16V O 1UF 16V HEH C411 NC 0 22uF 16V R440 4 7 1 16W R441 NC 4K7 1 16W 5 39 E NC M24C 16 C438 AVCC DVDD CN406 1uF 16V CVDD 1 For BUZZER control board C413 ADC VAA PVCC BUZZER 2 0 1UF 16v 3 or Touch Panel R476 NC 5V NC CONN e else w le R475 Uu 21 SS SIPS NC 2K2 1 16W 5 VCC3 8 a 2 888 88 8 8888 100 REXT 5 555 5 SS 8 8888 DGND CGND gt 9 555 G 44 amp 26588 477 NC OROS 1 16W RX2 a E DGND CGND Ro DGND CGND Q403 RX1 DGND CGND 4 EM Peer NC 2N3906S RTK PS RXO DGND CGND RX0 DGND CGND LED LF BLUE LF BLUE 3 RXC DGND CGND DGND CGND LE ud NC 100R 1 10W 5 RSGB1P TOP 5 TOP 3 HSYNCI RSCLKBMT1M 8 TIM 3 Sy VSYNCI1 RSCLKBP TIP 1 82 3 8486 RSBB3M T2M T2M 3 BIN1 RSBB3P T2P T2P 3 RSBBAMTCLKIM LE A MS 2K2 1 16W 5 VCC3 3 RSBB2P TCLK1P gg TCLKIP 3 5061 RSBB1MT3M eine MM 79 Te R467 NC OROS 1 16W GIN1 RIN4 RSRA3M TAM RSRBOM TAM 3 r RIN1 RSRA3P T4P RSRBOP 4 RSRA2MTSM GSGBOM RSRA2P TSP RSGBOP TSP 3 LED ORANGE SS ien GRANGE RSRAIMT6M RSGBOM 3 ia RSRA1P T6P RSBBOP 3 ie ae RSGA3MTCLK2M TCLK2M 3 ENSEN RSGA3P TCLK2P TCLK2P 3 RSGA2M T7M 3 NC ORO5 1
5. Period E A 0 H Pixels 720 18 ARS S V Lines 400 12 ROD 2 vm NEN Heres CES 3 31 5 Wik t 4 40 0 N Vibes NL 5 gt 49 5 viuines Tp oe 57 283 H Pixels TT 48 363 1344 1024 te 7 Mines 3 H Pixels Tum 60 123 1312 1024 aje 78 75 H Pixels 1 1 47 712 1792 1360 96 64 128 80 64 136 96 122 Porch B 1 4 120 NO 160 H 224 39 160 29 176 28 256 18 Resol ution 720 X 400 640 x 480 640 x 480 800 x 600 800 x 600 832 x 624 1024 x 768 1024 768 1360 x 68 DISASSEMBLY Set 1 2 Put the monitor on a soft flat 3 4 Consequently pull the base directly 5 6 A e Put the front cover upward Then let the all latches are separated Revolve the release The base Put the front face down disassembly back cover 7 Pull the key board out of bezel Disassembly the bezel T 4 f N N 4 ALS 9 gt ZX Disassemble the connector Disassembly the LVDS cable 11 Fu XE T TE S90 2 4 7 FH i 2 te bcr 7 Main board and power board The panel
6. 27 08860402224 17 cac gt 08560603105171 1404 0656060310517 06560402104127 E oI Se c4 065GMo20M2T CHPOIUFTVXIR 065GM403042T C420 0698040222031 CHIP22PFSOVNPO _ 0656040222031 CHIP 22PF 50V NPO 422 06560402104121 CHIP 0 1UF 16V XTR caz 06560402104121 CHIP 0 1UF 16V XTR caso 06560402104121 CHIP 0 1UF 16V XTR cas 06560402104121 CHIP 0 1UF 16V XTR casa 06560402104121 CHIP 0 1UF 16V XTR 2927 65 095Go402104120 CHIPODAUFTVXIR C498 0656080810512 000 C439 656060310517 MLCC 0603 CAP 1UF Z 16V YSv 000 C440 065G0805475A7Z CAP CHIP 4 7UF 10V 20 80 642 065604020412T CHPOJUFISVX7R 0101 cms 065604020432T CHPOAUFISVXUIR 065604020412 CHPOAUFISVXUIR 0560004 0817T 0603 CAP 1UF Z 16V YSv 0 065604020412T CHPPOAUFTSVX7R 1011 croa 0679 2151014 ECIOQUFM2SVG3UIMM cor 0679 2151014 ECIOQUFM2SVG3UIMM 11 C708 065G040210412T CHIP 0 1UF 16V X7R C708 065G040210412T CHIP 0 1UF 16V X7R DIODE D102 0936 6442PP BAV70 SOT 23 ZD104 093G39GA01 RLZ5 6B IC 11 9102 05601133 34 1 M24C02 RMN6EP SO 8 01103 056G 662502 IC ESD AZC199
7. 06 3162 iSMMRVET R807 06161206220 7 RSTCHIPR22 OHM 5 1 4W R808 061G0805473 RST CHIPR 47K OHM 5 A 8W 6810 06160805105 RST CHIPR OHM 5 1 8W R812 061G0805103 RST CHIPR 10K OHM 5 1 8 R813 061G0805105 RST CHIPR 1 OHM 5 1 8W Ret 061G0805105 RST CHIPR 1M 5 gt 1 8W ___ R85 061G0805104 RST CHIPR 100K OHM gt 5 1 8W Rete 061G0805105 RST CHIPR OHM 5 1 8W Ret 061G0805200 2F RST CHIPR 20 1 1 8W R818 061G1206330 RST CHIPR 33 OHM 5 1 4W o R825 061G0805000 RST CHIP 0805 1 8W R82 061G0805150 1F RST CHIPR 1 5 KOHM 1 1 8W R829 061G1206330 RST CHIPR 33 OHM 5 1 4W R836 061G0805102 HRSTCHIPR 1K OHM 5 1 8W R887 06161206220 SRST CHIPR 22 5 1 4W R 06160805487 RST CHIPR 487 OHM 1 1 8W R82 061G1206220 RST CHIPR 22 5 1 4W R846 061080554 Rear __ 160805105 gt Rese 0616080575 08161206624 101206624 96161206624 R904 06161206335 06161206335 Re05 RST CHIPR 3 3M OHM 5 1 4W 29906 Roos 06161200200 RSTCHIPR20 KOHM 5 1 44 09 0616152M10492T RSTMOFRIOKKOHM SU2WS _______ R90 06101206249 Ron 0616120610 RSTCHIPR 10 5 14W R912 061G06031002F RST CHIPR 10
8. 5VCC FB102 R102 100R 1 16W 5 C102 ORO5 1 10W 5 BEAD 0 047uF H Sync 103 100R 1 16W 5 V Sync 104 C105 OOR 1 16W 5 5pF 50V 75R 1 16W 5 R106 R107 C10 C104 VGA B R109 100 1 16W 5 C106 2K2 1 16W 5 2 2 1 16W 5 22 22 0 047uF SV ESD ug 1L 0808 SDA amp T H Sync ATOR 1 16W 5 C107 R143 FB103 1000pF AKT 1 16W 5 DSUB SCL 4 3 V Sync 1 03 1 02 VGA G 1 yy Y 2 RIM A A100R 1 16W 5 C108 DSUB_5V BEAD 0 047uF C112 NC R112 C109 5 DDC1 SCLX BpF 50V R101 758 1 16W 5 100R 1 16W 5 VGA G 100R 1 16W 5 C110 20105 0 047uF DSUB SDA 12 5 DDC1 SDAC v NC RLZ5 6B 0103 5V_ESD 41 VGA _ 3 4 VGA B 100R 1 16W 5 2 5 FB101 VGA G 1 LA c 1 01 1 04 EN VGA R 1 MM 2 RIVA A100R 1 16W 5 RE eos BEAD 0 047uF R116 C113 p oF 758 1 16 50 R139 R141 VGA R 2 8117 1008 1 1641 5 114 1K 1 16W 5 1K 1 16W 5 0 047uF DSUB 5V 5VCC CN102 DVI 5V 8 dics 15 DVI_5V nom En DVI SCL RS 1 16W 5 DDC2 SCL 9 D103 7 DVI SDA 1 16W 5 _ DDC2 SDA DDC SDA z 14 120 1 IEW 5 5V IEC R133 NC 1 3shield 1 2 4shield O 5shield 3 ley g clk shield Q101 R135 R151 ao R126 1 16W 5 RXOP NC NC 4K7 1 16W 5 DAT EZ R127 10R 1 16W 595 RXON R148 R149 U108 9 2 9 9 DA EL R126 S 1 16W 5 NG A
9. 1 Turn off the power switch at the front side of the display 2 Wait for about 5 seconds and press MENU POWER switch with 1 second interval 3 The SVC OSD menu contains additional menus that the User OSD menu as described below a CLEAR ETI To initialize using time b Auto Color W B balance and automatically sets the gain and offset value c AGING Select Aging mode on off d PANEL used panel type e NVRAM INIT NO f R G B 9300K Allows you to set the R G B 9300K value manually g R G B 6500K Allows you to set the R G B 6500K value manually h R G B Offset Allows you to set the R G B Offset value manually Analog Only i R G B Gain Allows you to set the R G B Gain value manually Analog Only SI 8 Connect to the PC X Connect to the monitor Figure 1 Cable Connection for Micom uploading 17 TROUBLESHOOTING GUIDE 1 NO POWER No Power Power Indicator Off Check the Adapier Inverter section Please reinsert and make sure the AC of 100 240v is normal Measure C704 1 8V U703 PIN2 3 3V Check CN701 or replace 401 oscillate wavefornmis are normal NO Replace X401 YES Replace U401 18 2 NO RASTER OSD IS NOT DISPLAY LIPS No Raster OSD Is Not Displayed NO Check power boardan find out a Check CN701 short point as penning ach power PIN 6 5V line Y
10. 16W sy For LED Current RSGA2P T7P 3 R470 need modify R465 R466 R468 R419 DGND CGND ore NC 2K2 116596 PB7 DDC SDA1 NT68667FG C RSCLKAMV7 T n PB6 DDC SCL1 RSCLKAP V6 of PB5 DVI_SDAO RSBA3M V5 PB4 DVI_SCLO RSBA3P VA RSBA2M V3 72 PB3 ADC3 INTE1 RSBA2P V2 ciones purs PB2 ADC2 INTEO RSBAIM V1 PB1 ADC1 RSBAIP VO PBO ADCO LED GRN BLUE GRN BLUE DGND CGND gt BON NC 100R 1 10W 5 SPILCE GPOS AD1 7543 R418 120R 4 16W 5 VSO INT VSO GPO4 7114 RAT 100R 1 16W 5 HSO SPI SI INT HSO GPOS pie oa od adj_BACKLIGHT 4 PD4 PWMA GPO7 SWS adj e ene 1118 8404 A 100R THEW 5 4 RDE 103 vso PC7 6 1025 Re pes 425 1 1659 OWER KEY POWER KEY BACKLIGHT PC4 PWM1 55 1 NL OMS C TTB gt gt on BACKLIGHT 1 4 Whee PC3 PWMO 25 S PANEL 10 4 P34 2 1 151 P31 TXD Hisy DDC_WP 2 P30 RXD PCO gt HDCP_CTRL 2 RSTB 42 n _NC 10K 1 26W 5 BUZZER 1 osci PAG PWMB 1 8 gt gt on_BACKLIGHT_5v_1 4 PASIPWMI 37 R447 NC OROS 1 16 2406 NC 10k 1 16 5 LED A NES R TS 10K4 16W 5 LED 5 PA2IPWMA LS 1 16W 5 LED B T 506 a PAO PWM2 D D PPWR_ON 3 ADD R LG 9525558883 68688882242 8915
11. 74060101 0 00 REAR EAR COVER HINGE ASS Y 70560934028 ACQ74060102 REAR COVER HINGE ASS Y ACQ74060201 ASSY 090 095G8018 3XH55 30101401 LVDS CABLE NA WES CABLE DVI COMLINK 089G421A18N IS EAD37992101 POWER CORD 228 REPLACEMENT PARTS LIST CAUTION BEFORE REPLACING ANY OF THESE COMPONENTS READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL MAIN BOARD AND POWER BOARD PARTS ARE DIFFERENT NOTE SAFETY Mark AL ALTERNATIVE PARTS DATE 2009 3 6 TSRGNDNBMWLFHN MAIN BOARD CAPACITOR C102 065G0402473 12 CHIP 0 047UF 16V X7R 103 065G040222031 CHIP 22PF 50V 104 065G040222031 CHIP 22PF 50V 105 065G0402509 31 CHIP 5PF 50V NPO 106 06500402473 12 CHIP 0 047UF 16V X7R C107 065G040210232 1000PF 10 065G0402473 12 CHIP 0 047UE 46V X7R 06560402509 31 CHIP 5 50V NPO eto 065G0402473 12 0 047UE 18V X7R 111 065G0402473 12 CHIP 0 047UF 16V X7R e 065G0402509 31 50V NPO 065G0402473 12 CHIP 0 047UF 16V X7R C15 065G040210412T CHIP 0 1UF 16V X7R LE Il 06560402224 11 CER 0 22UF 20 80 065604021012 6302 56040222417 065500340512 o65Go40210412T cos oer 2isibPB
12. R415 06180402002 RSTCHIPRTKOHM 5 1 16W NE EM EN NE 21 NENNEN 21 MEN R RSTCHPSSKIHOWSE Rue 06160402000 RSTCHPMAXOROSIHBW SSS R462 06160405 RSTCHPRIMOHM 1 5 16W R465 061G0402222 RSTCHIPR 2 2 KOHM 5 1 16W R466 0618040200 7 RSTCHIPMAXOROS1 60W R468 06100603017 7 RSTCHIPR100OHM 5 1 10W 702 1061604021022 RST CHIPR 1 KOHM 5 1 16W R704 1061604022232 7 RST CHIPR 22 KOHM 5 1 16W R705 10616040212 RSTCHIPR1KOHM 5 1 16W Rzoe 061G0402101 RSTCHIPR 100 OHM 5 1 16W R708 06180402000 RST CHIPR 10 KOHM 5 1 16W 28101 071G59K190 B 19 OHM BEAD FB10 0716 59 190 B 19 OHM BEAD 25 FB103 071G59K190 19 OHM BEAD 3 FB105 071G 59B121 TB160808B FB30 071G 56K121 CHIP BEAD 401 0716 566301 EA BEAD 300 OHM 403 071G56V301 B CHIP BEAD FGiM2042VF 301T07 BULLWILL FB404 071G56G301EA BEAD 3010 77 FB406 _ 0716 56 301 B CHIP BEAD FCM2012VF 301T07 BULLWILL FB407 071G 56G301 EA BEAD 302 OTHER xa 093G 2251B J NXS12 000AC30F BT 2 101 088G 35315F XH 113 898 15PIN VERTICAL CONN WITH SCREW CN102 088G35424F N CONN F WITH SCREW 302 0336802730 HAS WAFER 2 0MM RIGHT ANGLE CN402 033038027 CON
13. fire or other hazard Do not modify original design without obtaining written permission from manufacturer or you will void the original parts and labor guarantee TAKE CARE DURING HANDLING THE LCD MODULE WITH BACKLIGHT UNIT e Must mount the module using mounting holes arranged in four corners Do not press on the panel edge of the frame strongly or electric shock as this will result in damage to the screen Do not scratch or press on the panel with any sharp objects such as pencil or pen as this may result in damage to the panel Protect the module from the ESD as it may damage the electronic circuit C MOS e Make certain that treatment person s body are grounded through wrist band e Do not leave the module high temperature and in areas of high humidity for a long time he module not be exposed to the direct sunlight e Avoid contact with water as it may short circuit within the module e f the surface of pane become dirty please wipe it off with a softmaterial Cleaning with adirty or rough cloth may damage the panel CAUTION Please use only a plastic screwdriver to protect yourself from shock hazard during service operation WARNING BE CAREFUL ELECTRIC SHOCK e f you want to replace with the new backlight CCFL or inverter circuit must disconnect the AC adapter because high voltage appears at inverter circuit about 650Vrms Handle with care wires or conn
14. the soldering iron tip as the solder melts 2 Draw away th melted gt solder with an anti static suction type solder removal device or with solder braid before removing the IC Replacement 1 Carefully insert the replacement IC in the circuit board 2 Carefully bend each IC lead against the circuit foil pad and solder it 3 Clean the soldered areas with a small wire bristle brush It is not necessary to reapply acrylic coating to the areas Small Signal Discrete Transistor Removal Replacement 1 Remove the defective transistor by clipping its leads as close as possible to the component body 2 Bend into a U shape the end of each of three leads remaining on the circuit board 3 Bend into a U shape the replacement transistor leads 4 Connect the replacement transistor leads to the corresponding leads extending from the circuit board and crimp the U with long nose pliers to insure metal to metal contact then solder each connection Power Output Transistor Device Removal Replacement 1 Heat and remove all scider from around the transistor leads 2 Remove the heatsink mounting screw if so equipped Carefully remove tne transistor from the heat sink of the circuit board 4 Insert new transisterin the circuit board 5 Solder each transistor lead and clip off excess lead 6 Replace heat sink Diode Removal Replacement 1 Remove defective diode by clipping its leads as close as possible to
15. 0 A C707 C706 NC7A P1117E33LA C709 0 1UF 16V 100UF25V NC 100UF25V C708 0 1UF 16V ADD R711 LG 20081029 AP1117D33L 13 Both 223 and 252 foot print 38 DVDD C401 CVDD 0 22uF 16V FB403 VCC1 8 3000HM FB401 406 300 3000HM 1 PAPA C440 c403 C404 4 7UF 10V AuF 16V 1 16V C0805 C0603 VCC3 3 FB404 300 OHM DVDD 4 C410 C412 C430 C423 16V 0 1UF 16v 16V 0 1UF 16v R401 _ AVCC 470 OHM 1 1 16W FB407 0402 16 300 OHM ADC_VAA 2 4 WI 2 RX2N 7 C439 0447 xen 1uF 16V 0 1UF 16V 13 2 13 2 RXCN 7 41 2 DSUB_H L 2 DSUB V 42 2 DSUB 19 2 DSUB_B 2 DSUB_SO 21 2 DSUB_G 2 2 DSUB_G R 2 DSUB_R 5V 2 DDC1_SDAY x 10K 1 16W 5 Recon 46 R407 20K OHM 1 16W DET 30 33 KEY1 1716W 5 77125 3 KEY1 55 KEY2 RAG 126 C446 0 1UF 16V 3 KEY2 1 16W 5 SPI CE 104 SPI SO 105 SPI SI 106 SPILCK 107 WP 108 2 VGA DET 2 2 DVI DET 5V CN407 MSDA NC B431 ANC RST CHIP 100RI9 1 MSCL NC NC 100R 1 16W 5 50 2 TX R41 NC 100R 1 16W 5981 3 R454 NC 10K 116W 5 32 DVDD 4 MUTE lt lt NC CONN R405 401 10K 1 16W 5 C422 T DUBUG 0 1UF 16V C420 zw 2MHz can 22pF 100R 1 16W 5
16. 0 min 75 Typ Bottom 70 min 85 Typ 2 2 Luminance 250Cd m min 300Cd 6500K 170Cd m min 9300K 2 3 Contrast Ratio 600 min 1000 typ 3 SIGNAL Refer to the Timing Chart 3 1 Sync Signal Type Separate Sync SOG Sync On Green Digital 3 2 Video Input Signal 1 Type R G B Analog 2 Voltage Level 0 0 7 Vp p 3 Input impedance 75 O 3 3 Operating Frequency Horizontal 30 61kHz Vertical 56 75Hz 4 Max Resolution D sub Analog 1360 x 766 60 Hz 5 POWER SUPPLY 5 1 Power 100 240 50 60 2 0 8A 5 2 Power Consumption On Mode 21 Sleep Mode x NW Off Moderns TW 6 ENVIRONMENT 8 1 Operating Temperature 10 C 35 C Humidity 10 9o to 80 96 non Condensing 6 2 Storage Temperature 20 C to 60 C Humidity 5 to 90 non Condensing 6 3 MTBF 70000 Hours Not include panel Lamp Life lt 50000 Khrs 7 DIMENSIONS with Stand Width 44 90 cm 17 68 inches Depth 18 30 cm 7 20 inches Height 29 05 cm 11 44 inches 8 WEIGHT excl packing Weight 3 3 kg 7 28 Ibs PRECAUTION WARNING FOR THE SAFETY RELATED COMPONENT here are some special components used in LCD monitor that are important for safety These parts are marked the schematic diagram and the replaced parts list is essential that these critical parts should be replaced with the manufacturer s specified parts to prevent electric shock
17. 04S SOT23 6L 0104 0566662502 IC ESD AZC199 04S SOT23 6L U105 0566662502 IC ESD AZC199 04S SOT23 6L U106 056G 662502 IC ESD AZC199 04S SOT23 6L uwo 056G 662502 ESD AZC199 04S SOT23 6L um 056G 562584 NE NT68667FG C QFP 128L 402 0566113381 SST25LF020A 33 4C SAE SMTCR U402 100GKNG8001N11 NMCU ASS Y 056G1133 81 0703 056G 563 52 IC AP1117D33L 13 TO252 3L DIODES TRANSISTOR NS 0301 057G 763 1 A03401 SOT23 BY AOS A1 0302 057G 417 12 T KEC 2N3904S RTK PS 0401 057G 417 13 T KEC 2N3906S RTK PS 054011 RESISTOR A y R10 06160402101 102 0610603000 R103 RST CHIPR 100 OHM 5 1 16W R104 RST CHIPR 100 OHM 5 1 16W ME sn NENNEN R108 06180402750 75 OHM 5 1160 EN NE 21 NENNEN 21 MEN RST CHIPR 75 OHM 5 1 16W 28 R115 061G0402101 RST CHIPR 100 OHM 5 1 16W R116 061G0402750 RST CHIPR 75 OHM 5 1 16W R117 061G0402101 RST CHIPR 100 OHM 5 1 16W R18 061G0402101 100 OHM 5 1 16W R119 10616040211 7 RSTCHIPR100OHM 5961 6W R120 10616040212 7 RSTCHIPR1KOHM 5 1160 R121 061G0402101 RST CHIPR 100 OHM 5 1 16W R122 0616040201003 RST CHIPR 100 OHM 5 116 Rf26 061604020100 RST CHIPR 10 OHM 5 1 16W R127 06160402100 RST C
18. 1 NC CONN 4 5 6 7 TOUCH POWER LED LF BLUE CONN C436 NC x37 ZD403 NC R302 220 OHM 1 4W C301 NC 0 1UF 16V 5 lt 25 lt 5 lt GRN BLUE 5 K LED ORANGE 5 LED BLUE 5 BKLT VBRI BKLT EN R710 C703 CONN C710 NC O 1UF 6 NC 1N 50V C712 lock type NC 1uF 16V NC VCC3 3 R705 1K 1 16W 5 BKLT VBRI R706 100R 1 16W 5 5VCC VCC3 3 5VCC R702 1K 1 16W 5 R708 BKLT EN 10K 1 16W 5 R711 NC Q701 22K 1 16W 5 2N3904S RTK PS 20081210 use Pin 123 control BL ON on BACKLIGHT 1 R446 0 Ohm R708 10K R704 22K R702 1K Q701 2N3904 C702 0 1uF R447 R711 NC use Pin 39 control BL ON on BACKLIGHT 5V 1 447 0 Ohm R711 10K R446 R708 R704 R702 Q701 C702 NC NC R703 10 1 16W 4 gt R707 NC AK7 1 16W 5 BACKLIGHT 1 5 BACKLIGHT 5v 1 5 5VCC Both 223 and 252 foot print R701 NC 10K 1 16W 5 NT60670B OPTION Volume 5 Mute 5 5 0704 NC APTTTETSUA SOT2 2 3 ze DVI 5 DSUB 5V U702 VCC1 8 TO252 NC AIC1117A 18PE D702 NC BAT54C Vout 1 C704 C705 lt C711 NC O 1UF 16V 100UF25V NC 0 1UF 16V lt adj_BACKLIGHT 5 a FB701 NC 300 OHM 5VCC 5VCC VCC3 3 U701 3
19. 15 065G0603104 12 0603 X7R 16V 100N P cete 065G0603102 32 1000 10 50V X7R C917 067G215P1024AV CAP 105 C 1000UF M 25V 067G215P1023AV 105 C 1000UF M 16V 919 067G215P1023AV 105 1000UF M 16V 920 067 215 471 105 470UF M 16V cen 065G0603104 12 CER2 0603 X7R 16V 100N P DIODE ARM 0936 5046028 Ds 0936 5433 082 0936 6433 D806 _ 0936 64 33 DIO SIG SM BAV99 PHSE R be 09367 64325 0986 52121521 0936 soserszT D904 09 0936 60325 0936300 1 1 91DQU6FCSNIHONINTER 6 zoo 211 2168 20002 09639524 T RZSSBlDS ei 05566010 ICOZOSSGNBSOIC SS 086 0576763 6 AOMBJBSOICBBYAOS 0576759 2 RKOOZFDSTM6 SOT23BYROHM ______ 2 086759 200000 RKIOZFDSTM6SOT23BYROHM 0901 057G66752 FET 2SK4100LS T 7A 650V TO 220FI LS 31 09660756 MOSFET7AGSOVFMAOTNGSGXTOZ2UF sTeonkeszre 066 31602 i15MMRVET 0 Qs TRAKTDIQSKEC Ue __ 379111 0 607577 GS sors Us 055G1393A 0 Ue 056615012 KMMMAATPTOS2 RESISTOR 0616 56107 RSTNTCRSOHM 1 20 4A 13MM THINKING _ NR
20. 20MM F 084G 41004 L 877SERIES 4A 250V 0066 NUE 0956 9023 8i 016 5529 08006084 i BOK os 9023 1802 0956 9023 1803 0955 9023 os 0956 9023 JUMPERWRE 0956 9028 JUMPERWRE 066 9025 JUMPERWRE 0956 9025 JUMPERWRE 0956 9025 JUMPERWRE os JUMPERWRE Je 06 9025 JUMPERWRE Jey 066 9025 JUMPERWRE 0956 9025 JUMPERWRE eo 073617465H2 LINEFLTERGOMHMN _ 434 1 1901 006G 31502 1 5MM RIVET 1903 073G 253191 H IND CHOKE 1 1UH DADON 1904 0736 253191 IND CHOKE 1 10 DADON 34 DIFFERENT PARTS LIST W1943TB 8 REARCOVERHINGEASSY _ QX4GOST3B63K0100 REARCOVERLIBNWSLG _ 7SGLUiBSXIOI2NOOD PANELMIBSXWONVOOSZAUO 785GQ8CBKLOM MAINBOARD CBPCRNDLGO _ MCU ASS Y 06661133 8 i35 SCHEMATIC DIAGRAM 1 SCALER C121 NC 0 22uF 16V
21. 4K7 146 5 NC 4K7 1 16W 5 ves asi mum R12 10R 1 16W 5 RXIN ue mL 1 R130 10R 1 16W 5 NC 100R 1 16W 5 25 R131 TOR 1 16W 5 FOON 0508 SDA NC 100R 1 16W 5 22 1 13 V 5 DAT3 5 X 5 WP bal 12 NC M24C02 WMN6TP DAT4 4 X a DAT4 754 X 7 15 23 R132 A TOR 1 16W 5 BAV70 clk 24 R134 1 16W 5 RXCN ESD 5V E JACK U107 U105 BSD ov U106 ESD_SV 2 1 03 1 02 3 1 1 01 1 04 8 1 1 04 hiss T 1 VDDGND GNDVDD GNDVDD 5 Cazo 101 H 1 02 1 03 lt 102 103 az 5 5 oer 192224 18 RE AZC 199 048 2 199 045 CAE L_ AZC199 04S diu Cale Qi 8 vcc ao H 7 2 ESD 5V NC NC 1168 5 68 W 3 RAC SDA Us 122 5 2 4 DOV 16W 5 SDA VSS R142 GND POWER DGND 36 M24C02 RMN6TP 120 OHM 0 OHM 5 1 16 CN302 LVB2M LVBCKM LVB3M LVAOM LVA1M LVA2M LVACKM LVB2P LVBCKP LVB3P LVAOP LVA1P LVA2P LVACKP RXE0 15 16 RXEO PANEL_VCC 5V 5 PPWR_ON gt gt 22K 1 16W 5 C304 R303 0 1UF 16V Q302 2N3904S RTK PS NC R305 10K 1 16W 596 R306 56K 1 16W 596 R307 PANEL VCC FB301 1 2 120 C305 100UF25V ES
22. E mail http www L GEservice com techsup html LG COLOR MONITOR MODEL FLATRON W1943TB w1943TB PFT A NAPH for LGD TLC1 W1943TB PFT A VAPH for AUO 00 Sales Market CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONSAN HS MANUAL To apply the Novatek Chip CONTENTS SPECIFICATIONS idunt duo don ns 2 SERVICE MODE ott cree PRECAUTIONS 3 TROUBLESHOOTING GUIDE TIMING CARR ERE 7 WIRING DIAGRAM 1 1 DESASSEIVIBDY A noti Rs 8 AP OD PDUVIENS ns BLOCK DIAGRAM 11 REPLACEMENT PARTS LIST DISCRIPTION OF BLOCK DIAGRAM 13 DIFFERENT PARTS ADJUSTMENT ae 15 SCHEMATIC SPECIFICATIONS 1 LCD CHARACTERISTICS Type matrix TFT Color LCD Module Active Display Area 18 51 inches Pixel Pitch 0 3 H x 0 3 V mm Color Depth 16 7M colors Size 430 4 H x 254 6 V x 13 0 D mm Typ Interface LVDS 1Port eurface Treatment Hard coating 3H Anti Glare Operating Mode Normally White Transmissive mode Backlight unit 2 CCFL 2 OPTICAL CHARACTERISTICS 2 1 Viewing Angle by Contrast Ratio gt 10 Left 70 min 85 Typ Right 70 min 85 Top 6
23. ES NO 1 Check 0703 Check U703 2 Chec gt LAA YES NO 1 Check C704 2 TROUBLE IN SCALER IC Check C704 27 Check CN704 Check BL ON OFF pulse PIN 6 5V contacting scope YES LIPS 19 3 NO RASTER OSD IS NOT DISPLAY MSTAR No Raster OSD Is Not Displayed SCALER PIN 127 128 OSCILLATES AS 12MHZ 1 Check C420 C421 2 Check X401 3 TROUBLE IN SCALER 1C CHECK CONNECTION NO LINE FROM D SUB SCALER IC PIN 41 H SYNC PIN 42 V SYNC YES TROUBLE IN CABLE OR LCD MODULE 20 4 TROUBLE IN DPM TROUBLE IN DPM SCALER IC PIN 41 H SYNC PIN 42 V SYNC CHECK SYNC LINE TROUBLE IN CABLE LCD MODULE 221 5 POWER No Power Power Indicator Off NO Check AC line volt ___________ gt Check AC line Check the Check F901 80901 voltage of C907 Check start voltage for the pin1 of U901 YES Check U901 pin 6 Check D902 C911 Vcc is 13v Check D901 R903 R904 R905 U901 XX YES Y XX NO Check U901 PIN5 Check D904 Q901 output is PWM Check U901 T901 D906 D905 ZD903 ZD902 U902 U903 299 6 RASTER NO Raster Lamp Off Check C811 Check power section 14 5 Check Interface section or main board NO Check 6807 C809 C810 YES Check ON OFF signal
24. HIPR 10 OHM 5 1 16W R1238 061604020100 RST CHIPR 10 OHM 5 1 16W R129 _ 06160402100 R130 06160402100 8131 061G0402100 R432 061G0402100 R434 _ 061G0402100 R136 061G0402472 R137 061G0402472 R138 061G0402472 _ 139 06160402102 RM 061G0402102 R4142 06160402000 Y R143 06160402472 R144 06160402472 R3 061G1206221 R30 06161206221 R303 06160402472 R304 06180402223 R805 061G0402103 gt R306 061G0402563 R808 061G0402103 R401 _ 06100402470 OF 403 lt 061G0402103 8404 7 1 06160402101 R405 R407 RST CHIPR 10 OHM 5 1 16W RST CHIPR 10 OHM 5 1 16W RST CHIPR 10 OHM 5 1 16W 7 RST CHIPR 10 OHM 5 4 46W RST CHIPR 10 OHM 594 1 16W RST 4 7 5 1 16W RST CHIPR 4 7 KOHM 5 1 16W RST CHIPR 4 7 5 1 16W RST CHIPR KOHM 5 1 16W RST 1 KOHM 5 1 16W RST 4 7 KOHM 5 1 16W ARST CHIPR 4 7 KOHM 5 1 16W RST CHIPR 220 OHM 5 1 4W RST CHIPR 220 OHM 5 1 4W RST CHIPR 4 7 KOHM 5 1 16W RST CHIPR 0402 470 OHM 1 1 16W 061G0402103 RST CHIPR 10 KOHM 5 1 16W 061G0402203 RST CHIP 20K 1 16W 5 R409 061G0402101 RST CHIPR 100 OHM 5 1 16W R413 061G0402103 RST CHIPR 10 KOHM 5 1 16W 29 21 sn
25. K OHM 1 1 10W 06161206221 RSTCHIPRZ20 OHM 5 UAW 4 0616192M60882T SY RST MOFR 0 68 OHM 5 ANS FUTABA 5 0616120000 RSTCHIPRI00 OHM 06161206000 100 OHM 5 14w 0 6 06162060 RSTCHIPR 100 OHM 5 14w x52 R921 06100805151 CHIPR 150 OHM 5 1 8W 87 1606031001 RSTCHIPR 1 KOHM 1 1104 061G06031004F RSTCHIPR 1 KOHM 1 1710W R924 0618152M10152T RST MOFR 1000HM 5 2WS FUTABA Reas 061060 471 RST CHIPR 470 OHM 5 1HOW 0616060310012 RSTCHIPR 1 KOHM 5 1 1104 Rex 05160805 RSTCHIPRIK OHM 5 1 8W R928 061G0603365 1F RSTCHIPR 3 65 KOHM 1 1 10W R929 061G08054322F RST CHIPR 43 2 KOHM 1 A 8W 930 061G0603243 RST CHIPR 2 43K OHM 1 1 10W TRANSFORMER PT801 080GL17T40 H XFMR INVERTER PT801 O80GL17T 40 DN X FMR TK 2001U 101 _ PT801 0066 31502 1 5 RIVET PT801 S80GL17T40V TRANSFORMER ASSY 7901 080 6117747 S X FMR 600 V V 1901 006G 31502 1 5MM RIVETS OTHER CN801 033G80212E U INVERT CONNECTOR CN802 033680212 INVERT CONNECTOR 01 087G50132 S RAC SOCKET CN901 0066 31500 NT EYELET CN902 0956 825 9 524 3 WIRE HARNESS 9P SCN 9P 2008 1
26. KIA431A AT P R930 2 43K OHM 1 1 10W m CN902 C921 CN901 0 1uF 16V SOCKET HS1 7 5V HEAT SINK Q901 GND1 6 5v GND 5 ND 4 ND x H ON OFF C 3 4 1 DIM n Wire Harness 14 5VO C811 C828 ATOUF25V 0 1 677215 4714 6560805 04 32 TT 33 OHM 1 4W 61G1206330 R829 470PF100V C833 65G060347141J Y 4 Q806 828L PT801 C825 12PF6KV 65G 6J1206ET 6826 3PF 3KV 65G 3J3096ET C820 0 0039uF 16V 65G0805392 31 D806 3 C839 3PF 3KV 65G 3J3096ET 93G 64 33 DRV1 PGND VDDA DRV2 TIMER GNDA DIM CT ISEN SSTCMP VSEN LCT OVPT ENA NC1 NC2 OZ9938GN 56G 608 10 6161206220 R837 22R 1 4W 5 R816 R817 1M 1 8W 596 20K OHM 616080510 CT SST 4 808 1 8W 5 0810 61G0805184 560PF 50V 65G080556131 C807 C808 0 01uF 047uF 65G0805103 32 65G0805473 4 1 1 8W 61G0805200 2F C841 0 0039uF 16V 93G 64 33 R836 1K 1 8W 5 61G0805102 750 OHM 1 8W 6160805751 CN801 CONN 33G8021 2E 0 CN802 CONN 33G8021 2E U CN803 NC 5V O R807 22R 1 4W 5 61G1206220 ON OFF ___ gt R808 47K 1 8W 5 DIM gt NC 61G0805473 R842 22R 1 4W 5 61G1206220 R812 10K 1 8W 5 61G0805103 C803
27. NECTOR 7P 2 0 DIP 701 10336380298 WAFER POWER BOARD gt CAPACITOR PE 065 080510522 CAP CHIP 0805 1UF 25V X7R C805 10500909222 31 C808 0655080910620 1 06590809103 32 C808 06160805184 C800 810 du mE C819 065608054733 CHIPOO4TUFBOVXTR 00000000 mE EE mE mE m 30 ces7 0656080539131 CHIP 390PF 509 cess 0656080547332 CHIP 0 047UF 50V X7R 0656 3 3000ET SPF 3KV Z5P C841 0656080539231 CHIP 3900PF 50 X7R 0805 0 O065G30M3322BP 0 10 coo 0666306 10228 100ppFYLCAP 0666306 10228 1000 063GI7KATAUS O O 00G 3102 154 coos 06762156100167 L LOWESRECIUFZSVME MLSMM C906 065120610 32 004091 C907 067G215210115P CAP 105 C 100UF M 450V 006G 31502 1 5MM RIVET 22 0908 065G0603103 12 CHIP 0 01UF 16V X7R C909 065G060347132 CHIP 470PF 50V X7R 910 065G0603104 22 CAP CHIP 0603 0 10 X7R 911 0676215 4707 X C912 0656 2616226921 CAP CER 1500PFK DKV 0913 065G1206102 72 CAP 1206 1000 500V X7R 914 065G1206102 72 CAP CHIP 1206 1000PF 500V X7R 9
28. R814 C806 NC 81 ibo 1M 1 8W 5 1uF 25V NC 2258 61608051 6560805105 22 C804 NO 5 qum C814 D gt 1uF 25V 1uF 25 6560805105 22 CT 65G080539131 C837 390pF50V D812 1N4148W 93G 64328 SST 0811 RK7002 R847 0 047u 1M 1 8W 5 32 61G0805105 41 CN804 NC LG Mar 2009 P NO Printed in China
29. YES ChecklC801 pin 2 5V YES Check 1 801 Pin1 pin15 have the output of sawtooth Check 801 pin 5 pin6 NO Replace 1 801 Check Q806 pind pin6 is 14 5 gt Cut all the pin connector of 0806 check C811 14 5V Check C807 C809 C810 Check PT801 pin7 pin8 650V Unplug backlight connector wire check PT801 pin7 pin8 650V YES NO Replace Q806 Replace backlight NO Replace PT801 23 WIRING DIAGRAM 095G8018 3XH55 095G 825 9 524 24 EXPLODED VIEW 25 EXPLODED VIEW PARTS LIST 705GQ9CS014 ACQ74060001 BEZEL ASSY KEPC8QG2 EBU60704501 KEY BOARD EAJ59066901 750GLU185X1012N000 EAJ59066901 ______ PANEL M185XW01 V00 SZ AUO EAJ59066902 EBU60705001 FOR LGD 750GLG185W1C12MOLG EAJ60134501 PANEL LM185WH1 TLC1 NJ LGD 0 756GQ8CB KLO10 MAIN BOARD CBPCRNDLGQ1 7 MODULE EBU60704601 FOR AUO 756GQ8CB KLO11 MAIN BOARD CBPCRNDLGQ1 MODULE PWPC8921MYE1 EBU60704301 POWER BOARD Q15G0414101 MDQ61891301 MAINFRAME 06 560414301 MDQ61891302 MAINFRAME 705GQ934026 74060101 0 00
30. absolutely necessary 2 carefully scratch away the solder resist and acrylic coating if used from the end of the remaining copper pattern 3 Bend a small U in one end of a small gauge jumper wire and carefully crimp it around the IC pin Solder the IC connection 4 Route the jumper wire along the path of the out away copper pattern and let it overlap the previously scraped end of the good copper pattern Solder the overlapped area and clip off any excess jumper wire At Other Connections Use the following technique to repair the defective copper pattern at connections other than IC Pins This technique involves the installation of a jumper wire on the component side of the circuit board 1 Remove the defective copper pattern with a sharp knife Remove at least 1 4 inch of copper to ensure that a hazardous condition will not exist if the jumper wire opens 2 Trace along the copper pattern from both sides of the pattern break and locate the nearest component that is directly connected to the affected copper pattern 3 Connect insulated 20 gauge jumper wire from the lead of the nearest component on one side of the pattern break to the lead of the nearest component on the other side Carefully crimp and solder the connections CAUTION Be sure the insulated jumper wire is dressed so the it does not toucii components or sharp edges TIMING CHART Front Frequency Total Display polarity CLOCK Porch kHz Hz
31. across line capacitor and of course the primary protection fuse 2 Input rectifier and filter This part function is for transfer the input AC v liage to DC voltage through a bridge rectifier and a bulk capacitor 3 Energy Transfer This part function is for transfer the primary energy to secondary through a power transformer 4 Output rectifier and filter This part function is to make puise width modulation control and to provide the driver signal to power switch to adjust the duty cycle during different AC input and output loading condition to achieve the dc output stabilized and also the over power protection is also monitor by this part 5 Photo Coupler isolation This part function is to feed back the DC output changing status through a photo transistor to primary controller to achieve the stabilized DC output voltage 6 Signal collection This part function is to collect the any change from the DC output and feed back to the primary through photo transistor 14 ADJUSTMENT Windows EDID V1 0 User Manual Operating System DOS windows98 2000 XP 1 Parallel port setting Enter your bios and do as followings a Integrated peripheral b Super IO Device c Parallel port mode you should set the parallel port mode to SPP for using the DOS EDID tool surely 2 EDID Write 1 Connect the signal line of monitor with DDC recorder 2 Choose the DDC RECORD program and it shows on the screen the choose t
32. clock is from 25MHz to 85 5MHz This part consists of the Scalar ADC converter TMDS receiver and LVDS transmitter The Scalar gets the video signal converted analog to digital interpolates input to 1360 X 768 resolution signal and outputs 8 bit R G B signal to transmitter 2 Power Part This part consists of the 3 3V and one 1 8V regulators to convert power which is provided 5V in Power board 14 5V is provided for inverter 5V is provided for LCD panel Also 5V is converted 3 3V and 1 8V by regulator Converted power is provided for IC in the main board The inverter converts from DC 14 5V to AC 700Vrms and operates bacn light lamps of module 3 MICOM Part This part is including video controller part And this part orisists of Reset and the Micom The Micom distinguishes polarity and frequencies of ihe sync are supplied from signal cable The controlled data of each mode is stored in Scalar 13 LIPS Board Block Diagram 2 50 60Hz INPUT RECTIFIER SWITCHING OUTPUT RECTIFIER COMPONENTS AND FILTER TRANSFORMER AND FILTER LINE 100 240V SIGNAL PHOTO COUPLER COLLENT ISOLATION ION PWM CONTROL CIRCUIT PRIMARY SECONDARY INVERTER CIRCUIT High Voltage Operation description APS 1 EMI components This part contains of EMI components to comply with global rnarketing standards like VCCI CISPR the circuit included a line filter
33. diode body 2 pend the two remaining leads perpendicular to the circuit board 3 Observing diode polarity wrap each lead of the new diode around the corresponding lead on the circuit board 4 Securely crimp each connection and solder it 5 Inspect on the circuit board copper side the solder joints of the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures Circuit Board Foil Repair Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board causing the foil to separate from or lift off the board The following guidelines and procedures should be followed whenever this condition is encountered At IC Connections To repair a defective copper pattern at IC connections use the following procedure to install a jumper wire on the copper pattern side of the circuit board Use this technique only on IC connections 1 Carefully remove the damaged copper pattern with a sharp knife Remove only aS much copper as
34. e by drawing an arc 3 Discharge the picture tube anode only by a first connecting one end of an insulated clip lead to the degaussing or kine aquadag grounding system shield at the point where the picture tube socket ground lead is connected and then b touch the other end of the insulated clip lead to the picture tube anode buttori using an insulating handle to avoid personal contact with high voltage 4 Do not spray chemicals on or near this receiver or any of its assemblies 5 Unless specified otherwise in this service manual clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner cotton tipped stick or comparable non abrasive applicator 1096 by volume Acetone and 9095 by volume isopropyl alcohol 9096 9956 strength CAUTION This is a flammable mixture Unless specified otherwise in his service manual lubrication of c ntects in not required 6 Do not defeat piug socket B voltage interlocks with which receivers covered by this service manual might be equipped 7 Do not apply AC power to this instrument and or any of its electrical assemblies unless all solid state device heat sinks are correctly installed 8 Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead Always remove the test receiver ground lead last 9 Use with this receiver only the test fixtures specified in this service
35. e electrical charges sufficient to damage ES devices 6 Do not remove a replacement ES device from its protective package until immediately before you are ready to install it Most replacement ES devices are packaged with leads electrically shorted together by conductive foam aluminum foil or comparable conductive material 7 Immediately before removing the protective material from the leads of a replacement ES device 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 8 Minimize bodily motions when handling unpackaged replacement ES devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device General Soldering Guidelines 1 Use a grounded tip low wattage soldering iron and appropriate tip size and shape that will maintain tip temperature within the range or 500 F to 600 F 2 Use an appropriate gauge of RMA resin core solder composed of 60 parts tin 40 parts lead 3 Keep the soldering iron tip clean and well tinned 4 Thoroughly clean the surfaces to be soldered Use a mall wire bristle 0 5 inch or 1 25cm brush with a metal handle Do not use freon propelled spray on cleaners 5 Use the following unsoldering techni
36. ectors of the inverter circuit If the wires are pressed cause short and may burn or take fire Leakage Current Hot Check Circvit AC Volt meier Good Earth Ground such as WATER PIPE To Instru merits CONDUIT etc exposed METALLIC PARTS 1 5 Kohm 10W SERVICING PRECAUTIONS CAUTION Before servicing receivers covered by this service manual and its supplements and addenda read and follow the SAFETY PRECAUTIONS on page 3 of this publication NOTE unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions on page 3 of this publication always follow the safety precautions Remember Safety First General Servicing Precautions 1 Always unplug the receiver AC power cord from the AC power source before a Removing or reinstalling any component circuit board module or any other receiver assembly b Disconnecting or reconnecting any receiver electrical plug or other electrical connection c Connecting a test substitute in parallel with an electrolytic capacitor in the receiver CAUTION A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard d Discharging the picture tube anode 2 Test high voltage only by measuring it with an appropriate high voltage meter or other voltage measuring device DVM FETVOM etc equipped with a suitable high voltage probe Do not test high voltag
37. he Correct source base on the monitor 3 Click LoadFile then key in the manufacturer modei Name product code then choose the correct model name base on the monitor as Fig 2 4 Scan serial No to DDC recorder by Bar Reader then read again in tne Verify SN 5 According to the message of DDC program when the picture as fig A appears it show DDC record has finished i SSS 8515 Help History Flush Analog DVI Analog and DVI Manufacturer Manufacturer Model Mame Model Monitor SM Monitor SM Input Checksum Input Time input independence Week 1508601 Flash Year Month Day ear 2009 10 i dependence Check 397 Eee E DVI D SUB PASS Read A Analog Read Both AnalogtDigital Read Digital State Input SH 12 v it must be the same as Bar Code Week of Manufacture Year of Manufacture Check sum It must be the same as the last byte of data table as follows picture shows Above of all must be right then if it shows the green PASS it means record succeeds red Fail means record fails then check the power supply and signal line and ensure they are connected well then do DDC record again from the third step Analog rs Manufacturer Digita j d KE r Model 16 SERVICE MODE
38. manual CAUTION Do not connect the test fixture ground strap to any heat sink in this receiver Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the incidence of component damage caused by static by static electricity 1 Immediately before handling any semiconductor component or semiconductor equipped assembly drain off any electrostatic charge on your touching a known earth ground Alternatively obtain and wear a commercially available discnarging wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrica assembly equipped with ES devices place thesassembly on a conductive surface such as aluminum foil to prevent electrostatic charge buil up or exo sure of the assembly Use only a grounded tip soldering iron to solder or unscider ES devices 4 Use eni an anti static type solder removal device Some soid r removal devices not classified as anti Static can generate electrical charges sufficient to damage ES devices 5 Do not use freon propelled chemicals These can generat
39. que a Allow the soldering iron tip to reach normal temperature 500 F to 600 F b Heat the component lead until the solder melts c Quickly draw the melted solder with an anti static suction type solder removal device or with solder braid CAUTION Work quickly to avoid overheating the circuitboard printed foil 6 Use the following soldering technique a Allow the soldering iron tip to reach a normal temperature 500 F to 600 F b First hold the soldering iron tip and solder the strand against the component lead until the solder melts c Quickly move the soldering iron tip to the junction of the component lead and the printed circuit foil and hold it there only until the solder flows onto and around both the component lead and the foil CAUTION Work quickly to avoid overheating the circuit board printed foil d Closely inspect the solder area and remove any excess or splashed solder with a small wire bristle brush IC Remove Replacement Some chassis circuit boards have slotted holes oblong through which the IC leads are inserted arid bent flat against the circuit foil When holes are thie sictted type the following technique should be used to remove and replace the IC When working with boards using the familiar round hole use the standard technique as outlined in paragraphs 5 and 6 above Removal 1 Desolder and straighten each 1C lead one operation by gently prying up ori theNead with
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