LG Flatron M228WD Service Manual

LG Flatron M228WD Service Manual

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COLOR MONITOR
SERVICE MANUAL
CHASSIS NO. : LD73D
MODEL:
*(
) **Same model for Service
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Website:http://biz.LGservice.com
M228WD (M228WD-BZH.A**OLF)
Internal Use Only

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Summary of Contents for LG Flatron M228WD

  • Page 1 Internal Use Only Website:http://biz.LGservice.com COLOR MONITOR SERVICE MANUAL CHASSIS NO. : LD73D MODEL: M228WD (M228WD-BZH.A**OLF) ) **Same model for Service CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
  • Page 2: Table Of Contents

    DISASSEMBLY ..................12 ADJUSTMENT ..................14 TROUBLE SHOOTING ................19 BLOCK DIAGRAM...................26 EXPLODED VIEW ...................27 REPLACEMENT PARTS LIST ............... 29 SVC. SHEET ....................LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 2 - Only for training and service purposes...
  • Page 3: Precaution

    CAUTION Please use only a plastic screwdriver to protect yourself from shock hazard during service operation. LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 3 - Only for training and service purposes...
  • Page 4: Servicing Precautions

    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. LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 4 - Only for training and service purposes...
  • Page 5 IC. circuit board to prevent excessive component temperatures. LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 5 - Only for training and service purposes...
  • Page 6 Solder the overlapped area and clip off any excess jumper wire. LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 6 - Only for training and service purposes...
  • Page 7: Specification

    Storage Environment Temp : -10 C ~ 60 Non condensing Humidity : 5% ~ 90% Non condensing Display LCD Module LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 7 - Only for training and service purposes...
  • Page 8 Operating Mode Normally White Back light Unit 4 CCFL (4 lamps) R.T : 1.3ms + R.T : 3.7ms Typ. LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 8 - Only for training and service purposes...
  • Page 9 33.72 59.94 74.176 1080i 1920*1080 33.75 60.00 74.250 1080i 1920*1080 28.125 50.00 74.250 1080i 1920*1080 67.50 60.00 74.250 1080p LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 9 - Only for training and service purposes...
  • Page 10 1920 x 1080 67.43 59.94 148.352 HDTV 1080P 60Hz HDCP 1920 x 1080 67.50 148.500 HDTV 1080P 60Hz HDCP LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 10 - Only for training and service purposes...
  • Page 11 0x00 Serial No 0x01 Month/Year 0x02 0x03 0x04 0x05 0x06 0x07 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 11 - Only for training and service purposes...
  • Page 12: Disassembly

    Hold the stand base. Disassembly Stand base. Remove base body Like a picture. Push 2 letches Like a picture. LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 12 - Only for training and service purposes...
  • Page 13 1. Remove the screws. 2. Disassembly Hinge Cover. # 10 Remove the screws. Disassembly back cover. # 11 Pull the connector. LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 13 - Only for training and service purposes...
  • Page 14: Adjustment

    Year 2007 Version Analog : 1 Digital : 1 Revision Analog : 3 Digital : 3 Model Name M228WD-BZ LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 14 - Only for training and service purposes...
  • Page 15 925FS model : 215, pattern : 65) signal into Component. 2) Set the PSM to Dynamic mode in the Picture menu LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 15 - Only for training and service purposes...
  • Page 16: White Balance

    LCD module surface. 3) Double click In-start key on Controlling R/C and get in ‘white balance’. LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 16 - Only for training and service purposes...
  • Page 17 AGC-L BlkLine Detector Audio Delay Power-off History DVI EQ Panel Control EQ Gain Fan Control 10% Dimming Channel Recover LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 17 - Only for training and service purposes...
  • Page 18 Click “ Write” button c) Remove all default number d) Add 300-3FF e) Click Start button. f) Click Exit button. LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 18 - Only for training and service purposes...
  • Page 19: Troubleshooting

    11. Check the Y B/D 9. Check the Power Manufacture’s model Module output circuit Module output circuit Board Output high passage tension circuit LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 19 - Only for training and service purposes...
  • Page 20: No Power

    SC101 connection cable), and change the AC voltage marking to manual. When ST-BY 5V does not operate, replace the Power Board. LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 20 - Only for training and service purposes...
  • Page 21: Protect Mode

    After a COF crisis for each board, check the normal operation. For normal operation, normal ? corresponding COF failure means the module should be relaced. LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 21 - Only for training and service purposes...
  • Page 22 Is the LVDC cable Reconnect the LVDS cable in P800 normal? Is the IC700(FLI8548) Replace the VSC. Output normal? LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 22 - Only for training and service purposes...
  • Page 23 Replace the VSC B/D normal? IC(IC700) operate? Replace the FIL8548 IC(IC700) Is the Ctrl Board of Replace the Ctrl B/D. Module normal? LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 23 - Only for training and service purposes...
  • Page 24 (6) In case of an unusual display in SCART1 mode Is the Video input of the Check the input source A/V Jack(J1200) normal? Same as Block A LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 24 - Only for training and service purposes...
  • Page 25 Replace the IC1300 for specific input? CAX2069 refer to circuit diagram operating normally? (STA335BW) (except HDMI,DTV,RF) Replace the VSC B/D LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 25 - Only for training and service purposes...
  • Page 26: Block Diagram

    BLOCK DIAGRAM LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 26 - Only for training and service purposes...
  • Page 27: Exploded View

    EXPLODED VIEW LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 27 - Only for training and service purposes...
  • Page 28: Exploded View Parts List

    Cover, MOLD ABS HF-380 MKJ339814 ABS, HF-380 TX BATTERY COVER 6631900109E Harness,Single, LVDS CABLE(LG) Locking type FI-X30HL SMH200 150mM 1.25MM 30P-28P UL1571 AWG30 TWI N 60 BRAND LCD MNT 17"19" UNIXTAR TECHNOLOGY INC. LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved.
  • Page 29: Replacement Parts List

    "Capacitor,Ceramic,ChipC2012Y5V22" C1106 0CC101CK41A "Capacitor,Ceramic,ChipC1608C0G1H" C1301 0CE476WH6DC "Capacitor,AL,ChipMVK8.0TP25VC47M" C111 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" C1302 0CK474CH94A "Capacitor,Ceramic,Chip0603F474Z2" C1112 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" C1303 0CK474CH94A "Capacitor,Ceramic,Chip0603F474Z2" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 29 - Only for training and service purposes...
  • Page 30 "Capacitor,Ceramic,ChipC1005C0G1H" C1352 0CK104CK56A "Capacitor,Ceramic,Chip0603B104K5" C146 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" C1353 0CK105DK94A "Capacitor,Ceramic,Chip0805F105Z5" C147 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" C1354 0CK105DK94A "Capacitor,Ceramic,Chip0805F105Z5" C148 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 30 - Only for training and service purposes...
  • Page 31 "Capacitor,Ceramic,ChipC1005X7R10" C190 0CK103BH56A "Capacitor,Ceramic,ChipC1005X7R1E" C243 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" C191 0CK103BH56A "Capacitor,Ceramic,ChipC1005X7R1E" C301 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" C192 0CK103BH56A "Capacitor,Ceramic,ChipC1005X7R1E" C302 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 31 - Only for training and service purposes...
  • Page 32 "Capacitor,Ceramic,ChipC1005X7R10" C530 0CE227WF6DC "Capacitor,AL,ChipMVK8.0TP16VC220" C612 0CE476WC6DC "Capacitor,AL,ChipMVK5.0TP6.3VC47" C531 0CK105CF94A "Capacitor,Ceramic,Chip0603F105Z1" C613 0CE107WF6DC "Capacitor,AL,ChipMVK6.3TP16VC100" C532 0CE226WJ6DC "Capacitor,AL,ChipMVK6.3TP35VC22M" C615 0CK104CK56A "Capacitor,Ceramic,Chip0603B104K5" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 32 - Only for training and service purposes...
  • Page 33 "Capacitor,Ceramic,ChipC1005X7R10" C737 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" C791 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" C738 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" C792 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" C739 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" C793 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 33 - Only for training and service purposes...
  • Page 34 "Diode,TVSCDS3C05GTA 5.6V 6.4V 19" C872 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" ZD2001 0DZ560009GB "Diode,ZenerBZT52C5V6S-(F) 5.6V 5" C873 0CK104BF56A "Capacitor,Ceramic,ChipC1005X7R10" ZD2002 0DZ560009GB "Diode,ZenerBZT52C5V6S-(F) 5.6V 5" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 34 - Only for training and service purposes...
  • Page 35 "Filter,BeadHU-1H4532-121JT 120OH" IC700 EAN33595901 "IC,Video ProcessorsFLI8548H-LF-B" L516 6200J00005E "Filter,BeadHH-1M2012-601JT 600OH" IC701 0IMP242560A "IC,EEPROM24LC256T-I/SM 256KBIT 2" L517 6200J00005E "Filter,BeadHH-1M2012-601JT 600OH" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 35 - Only for training and service purposes...
  • Page 36 0TRIH80004A "TR,BipolarRT1P141C-T112 PNP -10V" AR304 0RZZH033273 "Resistor,ArrayMNR04M0ABJ330 33OH" Q1204 0TRIY80001A "TR,Bipolar2SC3052 NPN 6V 50V 50V" AR305 0RZZH033273 "Resistor,ArrayMNR04M0ABJ330 33OH" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 36 - Only for training and service purposes...
  • Page 37 R1024 0RJ0101C678 "Resistor,ChipMCR01MZPJ1R0 1OHM 5" R1127 0RJ4701C678 "Resistor,ChipMCR01MZPJ472 4.7KOH" R1025 0RJ0101C678 "Resistor,ChipMCR01MZPJ1R0 1OHM 5" R1129 0RJ0000C678 "Resistor,ChipMCR01MZPJ000 0OHM 5" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 37 - Only for training and service purposes...
  • Page 38 "Resistor,ChipMCR01MZPJ000 0OHM 5" R1225 0RJ1001C678 "Resistor,ChipMCR01MZPJ102 1KOHM" R1291 0RJ0000C678 "Resistor,ChipMCR01MZPJ000 0OHM 5" R1226 0RJ1001C678 "Resistor,ChipMCR01MZPJ102 1KOHM" R1292 0RJ0000C678 "Resistor,ChipMCR01MZPJ000 0OHM 5" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 38 - Only for training and service purposes...
  • Page 39 0RJ0472C678 "Resistor,ChipMCR01MZPJ470 47OHM" R1404 0RJ1001C678 "Resistor,ChipMCR01MZPJ102 1KOHM" R164 0RJ1202C678 "Resistor,ChipMCR01MZPJ123 12KOHM" R1405 0RJ1001C678 "Resistor,ChipMCR01MZPJ102 1KOHM" R165 0RJ1002C678 "Resistor,ChipMCR01MZPJ103 10KOHM" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 39 - Only for training and service purposes...
  • Page 40 0RJ1000C678 "Resistor,ChipMCR01MZPJ101 100OHM" R1759 0RJ0222C678 "Resistor,ChipMCR01MZPJ220 22OHM" R210 0RJ1000C678 "Resistor,ChipMCR01MZPJ101 100OHM" R1760 0RJ0222C678 "Resistor,ChipMCR01MZPJ220 22OHM" R211 0RJ1000C678 "Resistor,ChipMCR01MZPJ101 100OHM" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 40 - Only for training and service purposes...
  • Page 41 0RJ1802C478 "Resistor,ChipMCR01MZPF183 18KOHM" R310 0RJ0472C678 "Resistor,ChipMCR01MZPJ470 47OHM" R529 0RJ1002C678 "Resistor,ChipMCR01MZPJ103 10KOHM" R311 0RJ0472C678 "Resistor,ChipMCR01MZPJ470 47OHM" R530 0RJ1002C678 "Resistor,ChipMCR01MZPJ103 10KOHM" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 41 - Only for training and service purposes...
  • Page 42 "Resistor,ChipMCR01MZPJ472 4.7KOH" R702 0RJ0000C678 "Resistor,ChipMCR01MZPJ000 0OHM 5" R767 0RJ1000C678 "Resistor,ChipMCR01MZPJ101 100OHM" R705 0RJ1000C678 "Resistor,ChipMCR01MZPJ101 100OHM" R769 0RJ0222C678 "Resistor,ChipMCR01MZPJ220 22OHM" LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 42 - Only for training and service purposes...
  • Page 43 0RJ0682C678 "Resistor,ChipMCR01MZPJ680 68OHM" R884 0RJ0682C678 "Resistor,ChipMCR01MZPJ680 68OHM" 3890TKD002P BoxLB500J(PCB) BRAND 542*397*445 R885 0RJ0682C678 "Resistor,ChipMCR01MZPJ680 68OHM" 3890TKD002P BoxLB500J(PCB) BRAND 542*397*445 LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 43 - Only for training and service purposes...
  • Page 44 X100 6212AC2002B Crystal9H03200164 32.768KHZ 20PP X101 6212AB2883A CrystalHC-49SM 27.00000MHZ 27MHZ X1300 156-A02R CrystalEUA18.4320F16E33L 18.432M X700 6212AB2015J CrystalHC-49SM 19.66080HZ 19.660 LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 44 - Only for training and service purposes...
  • Page 45: Schematic Diagram

    0.01uF 8.2nF 8.2nF 47pF C199 C201 0.1uF R183 C200 R182 R181 0.01uF READY READY C100 47pF R184 R101 1/16W LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 45 - Only for training and service purposes...
  • Page 46 0.01uF C218 0.01uF C219 0.01uF C220 0.01uF C221 0.01uF C222 0.01uF C231 0.01uF C233 0.01uF C232 0.01uF C224 LDA[0-12] LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 46 - Only for training and service purposes...
  • Page 47 TP374 0.1uF TP375 TP376 TP377 TP378 TP379 TP380 TP382 TP383 R329 C309 0.1uF 0.1uF C310 C311 0.1uF T_ADDR[0-16] FMIBE1,FMI_A[1-16] LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 47 - Only for training and service purposes...
  • Page 48 LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 48 - Only for training and service purposes...
  • Page 49 R529 R513 8.2K 4.7K1% 10K 1% 1/16W R524 R525 R527 C545 R519 R520 9.31K 4.7K1% 10K 1% R522 R523 LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 49 - Only for training and service purposes...
  • Page 50 0.01uF R647 R646 HH-1M3216-501 L602 R650 10pF C604 C603 1/16W R657 C610 270pF 1/16W READY C613 100uF L606 HH-1M3216-501 LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 50 - Only for training and service purposes...
  • Page 51 R1723 4.7K R1786 4.7K R776 OCMADDR[0-21] FSADDR[0-12] LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 51 - Only for training and service purposes...
  • Page 52 OCMADDR[0] R843 READY R820 C853 100uF 0.01uF 0.01uF C856 C855 0.01uF C850 100uF 16V C852 C854 0.01uF FSADDR[0-12] FSDATA[0-31] LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 52 - Only for training and service purposes...
  • Page 53 JP1003 TP1033 C1112 0.1uF ZD1111 5 . 6 B ZD1113 5 . 6 B ZD1112 5 . 6 B LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 53 - Only for training and service purposes...
  • Page 54 220K 4.7K R1282 R1206 220K R1278 470K 470K R1235 R1236 R1218 220K R1283 220K R1277 R1233 R1276 Q1203 RT1P141C-T112 LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 54 - Only for training and service purposes...
  • Page 55 10uF 22uH L1306 22uH L1307 R1317 4.7K 6800pF C1308 R1318 4.7K C1309 C1310 4.7uF 4.7uF Q1305 RT1P141C-T112 C1311 0.1uF LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 55 - Only for training and service purposes...
  • Page 56 SUB/OUT MONITOR/OUT TRAP1 R1416 R1415 YOUT1 VGND S2-4 COUT1 C1439 0.47uF DTV_LOUT C1440 2.2uF SP_CVBS 0.47uF C1441 DTV_ROUT S2-3 LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 56 - Only for training and service purposes...
  • Page 57 LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 57 - Only for training and service purposes...
  • Page 58 LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 58 - Only for training and service purposes...
  • Page 59 LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 59 - Only for training and service purposes...
  • Page 60: Printed Circuit Board

    PRINTED CIRCUIT BOARD MAIN (TOP) LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 60 - Only for training and service purposes...
  • Page 61 MAIN (BOTTOM) LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 61 - Only for training and service purposes...
  • Page 62 CONTROL KEY LED & P/SW (TOP) LED & P/SW (BOTTOM) IR (TOP) IR (BOTTOM) LGE Internal Use Only Copyright 2007 LG Electronics. Inc. All right reserved. - 62 - Only for training and service purposes...
  • Page 63 Sep. 2007 P/NO : MFL38456772 Printed in Korea...

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Flatron m228w

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