LG 50PC5DC Service Manual
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LG 50PC5DC Service Manual

LG 50PC5DC Service Manual

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See also: Owner's Manual , Setup Manual
PLASMA TV
SERVICE MANUAL
CHASSIS :PA-73E
MODEL : 50PC5DC
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CANADA : http//biz.lgservice.com
USA
50PC5D
: http//www.lgservice.com
: http//biz.lgservice.com
50PC5DC-UC
50PC5D-UC

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  • Page 1 CANADA : http//biz.lgservice.com : http//www.lgservice.com : http//biz.lgservice.com PLASMA TV SERVICE MANUAL CHASSIS :PA-73E MODEL : 50PC5DC 50PC5DC-UC MODEL : 50PC5D 50PC5D-UC CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Safety Precautions

    An other abnormality exists that must be corrected before the receiver is returned to the customer. CANADA: LG Electronics Canada, Inc. 550 Matheson Boulevard East Mississauga, Ontario L4Z 4G3 : LG Customer Interactive Center P.O.Box 240007, 201 James Record Road Huntsville,...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS DESCRIPTION OF CONTROLS ...........4 SPECIFICATIONS..............8 ADJUSTMENT INSTRUCTIONS ..........9 TROUBLESHOOTING GUIDE ..........19 PRINTED CIRCUIT BOARDS ..........24 BLOCK DIAGRAM...............27 EXPLODED VIEW...............32 EXPLODED VIEW PARTS LIST .........33 REPLACEMENT PARTS LIST ..........34 SCHEMATIC DIAGRAM............

  • Page 4: Description Of Controls

    DESCRIPTION OF CONTROLS FRONT PANEL INFORMATION Here shown may be somewhat different from your TV. Front Panel Controls Plasma TV Model Remote Control Sensor Power Standby Indicator Illuminates red in standby mode. When the TV is turned on, the indica- tor blinks green and then illuminates green before the picture is displayed.

  • Page 5: Back Panel Information

    DESCRIPTION OF CONTROLS BACK PANEL INFORMATION Back Connection Panel Plasma TV Model AV IN 2 S-VIDEO Input Provides better picture quality than the video input. AUDIO Input VIDEO Input Connects the video signal from a video device. SERVICE VIDEO AUDIO RGB IN (PC) HDMI IN...

  • Page 6: Remote Control Functions

    DESCRIPTION OF CONTROLS REMOTE CONTROL FUNCTIONS When using the remote control, aim it at the remote control sensor on the TV. INPUT TV INPUT Select the remote’s operating mode. Defaults to LG MODE POWER codes, refer to page 70 to reprogram. MODE VCR/DVD Control video cassette recorders or DVD players.
  • Page 7 DESCRIPTION OF CONTROLS POWER Turns your TV or any other programmed equipment on or off, depending on the mode. TV INPUT In AV 1-2, Component 1-2, RGB-PC, HDMI1/DVI, and HDMI2 input sources, screen returns to the last TV channel. INPUT External input modes rotate in regular sequence: TV, AV1-2, Component 1-2, RGB-PC, HDMI1/DVI and HDMI2.

  • Page 8: Specifications

    SPECIFICATIONS 42PC5D 50PC5D MODELS (42PC5D-UC) (50PC5D-UC) 41.3 x 30.2 x 12.2 inches 48.9 x 34.9 x 14.6 inches Including stand 1048.0 x 766.0 x 310.0 mm 1242.0 x 887.6 x 370.0 mm Dimensions 41.3 x 28.1 x 3.3 inches 48.9 x 32.6 x 3.5 inches (Width x Height x Depth) Excluding stand 1048.0 x 713.0 x 83.5 mm...

  • Page 9: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object If you turn on a still screen more than 20 minutes (Especially These instructions are applied to all of the PDP TV, PA73E. Digital pattern(13 CH), Cross Hatch Pattern), an afterimage may occur in the black level part of the screen. 2.
  • Page 10 ADJUSTMENT INSTRUCTIONS (3) Click the first icon shown in fig.9. The window seen in fig.10 should appear. (3) Click the Send. (4) When you see (ISP COMPLETE) the download is complete. 3-4. Set Method (1) MCU Select: MTV512M64 (2) Option R/W Option: Auto Write(Verity) Jig Option: Myson Transmit Speed: Medium...
  • Page 11 ADJUSTMENT INSTRUCTIONS 4. USB S/W Download (Option) (5) Once the download is completed, remove the USB memory stick from the USB port. Press IN-START on the remote controller to check the upgraded S/W version at the 4-1. Overview top of the screen while the display is turned on. USB Download enables quick response to S/W upgrading and helps to configure the panel to the latest updates.
  • Page 12 ADJUSTMENT INSTRUCTIONS 5-3. Adjustment(42”/50”) Each PCB Assy must be checked by Check JIG Set before assembly. (Especially, be careful Power PCB Assy which can (1) Va Adjustment cause Damage to the PDP Module.) 1) Connect + terminal of D.M.M to Va pin of P812(50”: P805) and connect –...
  • Page 13 Top/Right of the panel. (Deviation : ±0.5V) [ADC adjustment (MSPG-925Fx series) Model No. & Pattern No.] - Model No.: #209(480i adjustment), #223(1080i adjustment) - Pattern No.: #65(7ColorBar Pattern) <Fig. 1-4> 50” PSU(LG IT: EAY32957901) <Fig. 2> Adjustment Mode <Fig. 3> Adjustment Pattern: 480i/1080i 60Hz HozTV31Bar Pattern...
  • Page 14 ADJUSTMENT INSTRUCTIONS 6-3. Adjustment 7-2. EDID DATA for PA-73E (1) Select Component1 as the input with 100% Horizontal Color Bar Pattern(HozTV31Bar) in 480i Mode [42PC5D-UC] (2) After receiving signal for at least 1 second, press the ADJ EDID for HDMI-1 (DDC (Display Data Channel) Data) Key on the Service R/C to enter the ‘Ez - Adjust’...
  • Page 15 ADJUSTMENT INSTRUCTIONS EDID Block 1 table = EDID for RGB-PC EDID Block 0 table = ____________________________________________________ 0 | 02 03 15 F1 46 84 05 03 02 20 22 23 15 07 50 65 ___________________________________________________ 10 | 03 0C 00 20 00 8C 0A D0 8A 20 E0 2D 10 10 3E 96 0 | 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 20 | 00 C4 8E 21 00 00 18 8C 0A D0 8A 20 E0 2D 10 10 10 | 00 10 01 03 68 73 41 96 0A CF 30 A3 57 4C B0 23...
  • Page 16 ADJUSTMENT INSTRUCTIONS 8. Adjustment of White Balance [ Requirements for Automatic Adjustment 8-1. The Purpose and Principal of Color (1) The illuminance of surroundings 10 lux or less; preventing light in surroundings as much as Temperature Adjustment possible (1) Purpose: to reduce the difference in color temperature (2) The location of the Probe among modules 1) For PDP: place the color analyzer (CA-100, CA-100+,...
  • Page 17 ADJUSTMENT INSTRUCTIONS [ RS-232C Command [ Color temperature: Cool, Medium, Warm (Automatic Adjustment) [42PC5D-UC] & [50PC5D-UC] (1) When R Gain is fixed at 192, Control G Gain and B Gain by reducing them from 192. RS-232C COMMAND CENTER [CMD ID DATA] (DEFAULT)(Decimal) (Deci (2) When B Gain is fixed at 192,...
  • Page 18 ADJUSTMENT INSTRUCTIONS [ White Balanc High Level : 216gray [The standard coordinates and color temperature for CS-1000] Color Coordination ∆ uv Mode Temp Cool 0.276 0.283 11000K 0.0000 0.285 0.293 Medium 9300K 0.0000 Warm 0.314 0.324 6500K 0.0000 [The standard coordinates and color temperature for CA-100/100+ (CH 10)] Color Coordination ∆...

  • Page 19: Troubleshooting Guide

    TROUBLESHOOTING GUIDE TV/CATV doesn’t display Could you measure voltage of TU4001 & IIC Check TU4001 Pin9(Video output) You should check power line lines? Can you see the normal signal? & IIC lines. Are they all normal? You should replace TUNER. Check the input(Pin63) of AV switch(IC5003).
  • Page 20 TROUBLESHOOTING GUIDE Video doesn’t display Check J5007 Pin3C J5007 may have problem. Replace this Jack. Can you see the normal waveform? Check the input(Pin1 or Pin8) of AV switch(IC5003). Pin1 is for video1,Pin8 is for After checking the Power of AV switch you should video 2.
  • Page 21 TROUBLESHOOTING GUIDE Component doesn’t display Check J5004,J5005. J5004,J5005 may have problem. Replace this Jack. Can you see the normal waveform? Check the input of Component After checking the input TR of component, you should switch(IC5001,IC5002). decide to replace component switch or not. Can you see the normal waveform? Check the output of Component After checking the Power of component switch you...
  • Page 22 TROUBLESHOOTING GUIDE RGB_PC doesn’t display Check input connect P7004. P7004 may have problem. Replace this Jack. Can you see the normal waveform? Check the input of Component switch(IC5002). After checking the input TR of RGBHV, you should Can you see the normal waveform? decide to replace these components or not.
  • Page 23 TROUBLESHOOTING GUIDE HDMI doesn’t display Check input connect P7007. P7007 may have problem. Replace this Jack. Can you see the normal waveform? After checking the Power of this chip, you should Check DDC communication lines(IC7013 Pin5,6) decide to replace this or not. After checking the Power of this chip, you should Check HDCP communication lines(IC7005 Pin5,6) decide to replace this or not.

  • Page 24: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS MAIN(TOP)
  • Page 25 PRINTED CIRCUIT BOARDS MAIN(BOTTOM)
  • Page 26 PRINTED CIRCUIT BOARDS CONTROL SIDE A/V(TOP) SIDE A/V(BOTTOM) PRE-AMP...

  • Page 27: Block Diagram

    BLOCK DIAGRAM CVBS...
  • Page 28 BLOCK DIAGRAM...
  • Page 29 BLOCK DIAGRAM...
  • Page 30 BLOCK DIAGRAM...
  • Page 31 BLOCK DIAGRAM...

  • Page 32: Exploded View

    EXPLODED VIEW...

  • Page 33: Exploded View Parts List

    PCB Assembly,Main PA73E 50PC5D-UC SUSLLJR 50PC5D-UC SKD Broadcom Model EBR36496504 PCB Assembly,Main PA73E 50PC5D-UC KUSPLMR X-Power CKD Broadcom Model EBR36496505 PCB Assembly,Main PA73E 50PC5DC-UC SUSLLJR SKD Broadcom Commercial Model EBR35526202 PCB Assembly,Sub PA63E 50PC5D-UE KUSLLMR CKD 50PC5D-UE (Broadcom) Local Key EBR35526203...

  • Page 34: Replacement Parts List

    SC2595STR 2.3TO5V 0 0W SOIC R Q7002 0TR102009AJ KRC102S NPN 30V 0V 50V 100MA EAN30744301 IC5001 MM1732XVBE 4.5TO9.5 50NSEC 50 “ 0TRIH80003A RT1N141C-T112-1 *50PC5DC IC5002 EAN30744401 MM1731XVBE 4.0TO9.5 50NSEC 50 Q7003 0TRIH80003A RT1N141C-T112-1 IC5003 0ISO206900A CXA2069Q 8.5TO9.5V - - 1.3W Q...
  • Page 35 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C1058 0CH2122K516 0805B122K500CT 1.2nF 10% 50V CAPACITOR C1059 0CH2122K516 0805B122K500CT 1.2nF 10% 50V C100 0CH5101K416 C2012C0G1H101JT 100pF 5% 50V C1060 0CH2122K516 0805B122K500CT 1.2nF 10% 50V C100 0CH5331K416 0805N331J500LT 330pF 5% 50V C C1061 0CH2122K516...
  • Page 36 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C2517 0CK103BH56A C1005X7R1E103KT- 10nF 10% 25V C3046 0CK102BK56A 0402B102K500CT 1nF 10% 50V X7 C2518 0CK103BH56A C1005X7R1E103KT- 10nF 10% 25V C3047 0CK104BF56A C1005X7R104KET 100nF 10% 16V C2519 0CK103BH56A C1005X7R1E103KT- 10nF 10% 25V C3048 0CK103BH56A...
  • Page 37 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C4040 0CK104BF56A C1005X7R104KET 100nF 10% 16V C4106 0CK104BF56A C1005X7R104KET 100nF 10% 16V C4041 0CH8106F691 MVK4.0TP16VC10M 10uF 20% 16V C4107 0CK103BH56A C1005X7R1E103KT- 10nF 10% 25V C4043 0CK104BF56A 100nF 10% 16V C4108 0CK103BH56A C1005X7R1E103KT- 10nF 10% 25V...
  • Page 38 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C5015 0CK105DH56A C2012X7R105KFT 1uF 10% 25V X7 C5074 0CH8106F691 MVK4.0TP16VC10M 10uF 20% 16V C5016 0CK105DH56A C2012X7R105KFT 1uF 10% 25V X7 C5075 0CH8106F691 MVK4.0TP16VC10M 10uF 20% 16V C5019 0CK103CK56A 0603B103K500CT 10nF 10% 50V X C5076...
  • Page 39 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C7024 0CK474DK56A UMK212BJ474KG-T 470nF 10% 50V C7075 0CK473CH56A C1608X7R1E473KT 47nF 10% 25V C7025 0CE107WF6DC MVK6.3TP16VC100M 100uF 20% 16 C7076 0CK473CH56A C1608X7R1E473KT 47nF 10% 25V C7026 0CK104CK56A 0603B104K500CT 100nF 10% 50V C7077 0CK153CK56A 0603B153K500CT 15nF 10% 50V X...
  • Page 40 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION EAD35682502 Harness,Single LVDS PDP STANDARD J5005 6612J10031A Jack,RCA PPJ209-02 14.0MM 6631900012E Harness,Single 2.50MM 10P J5006 6612F00024C Jack,DIN PSJ014-01 SOCKET 4P 6631900027E Harness,Single 2.50MM 13P J5007 6612J10006K Jack,RCA PPJ150-08 14.0MM 6631900065C Harness,Single 2.50MM 12P JK100...
  • Page 41 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R1016 0RJ0182D677 MCR03EZPJ180 18OHM 5% 1/10W 160 R1068 0RJ4700D677 MCR03EZPJ471 470OHM 5% 1/10W 16 R1017 0RJ0182D677 MCR03EZPJ180 18OHM 5% 1/10W 160 R107 0RH2002D622 MCR10EZHJ203 20KOHM 5% 1/8W 201 R1018 0RJ0562D477 MCR03EZPF560 56OHM 1% 1/10W 160...
  • Page 42 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R2600 0RJ0682C678 MCR01MZPJ680 68OHM 5% 1/16W 100 R3051 0RJ0222C678 MCR01MZPJ220 22OHM 5% 1/16W 100 R2601 0RJ0682C678 MCR01MZPJ680 68OHM 5% 1/16W 100 R3052 0RJ0222C678 MCR01MZPJ220 22OHM 5% 1/16W 100 R2602 0RJ0682C678 MCR01MZPJ680 68OHM 5% 1/16W 100...
  • Page 43 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R3115 0RJ0000C678 MCR01MZPJ000 0OHM 5% 1/16W 1005 R4070 0RJ0000D677 MCR03EZPJ000 0OHM 5% 1/10W 1608 R3116 0RJ0000C678 MCR01MZPJ000 0OHM 5% 1/16W 1005 R4071 0RJ4702D677 MCR03EZPJ473 47KOHM 5% 1/10W 16 R3121 0RJ0222C678 MCR01MZPJ220 22OHM 5% 1/16W 100...
  • Page 44 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R4139 0RJ4701C678 MCR01MZPJ472 4.7KOHM 5% 1/16W 1 R5030 0RJ6800D677 MCR03EZPJ681 680OHM 5% 1/10W 16 R4140 0RJ1000C678 MCR01MZPJ101 100OHM 5% 1/16W 10 R5031 0RJ2201D677 MCR03EZPJ222 2.2KOHM 5% 1/10W 1 R4141 0RJ4701C678 MCR01MZPJ472 4.7KOHM 5% 1/16W 1...
  • Page 45 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R5088 0RJ0000C678 MCR01MZPJ000 0OHM 5% 1/16W 1005 R6036 0RJ1000C678 MCR01MZPJ101 100OHM 5% 1/16W 10 R5089 0RJ1001C678 MCR01MZPJ102 1KOHM 5% 1/16W 100 R6037 0RJ0222C678 MCR01MZPJ220 22OHM 5% 1/16W 100 R5090 0RJ1002C678 MCR01MZPJ103 10KOHM 5% 1/16W 10...
  • Page 46 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R7043 0RJ3900D677 MCR03EZPJ391 390OHM 5% 1/10W 16 R7191 0RJ1001C678 MCR01MZPJ102 1KOHM 5% 1/16W 100 R7044 0RJ0332C678 MCR01MZPJ330 33OHM 5% 1/16W 100 R7192 0RJ0271D677 MCR03EZPJ2R7 2.7OHM 5% 1/10W 16 R7045 0RJ0332C678 MCR01MZPJ330 33OHM 5% 1/16W 100...
  • Page 47 Receiver Module,TSOP4438SO1 L3005 6210TCE001G Filter,Bead HH-1M3216-501JT 500OHM IC2001 SAA30670903 S/W,Firmware 3.00.0 F51E L3006 6210TCE001G Filter,Bead HH-1M3216-501JT 500OHM “ SAA30875502 S/W,Firmware 3.02.0 F096 *50PC5DC L3007 6210TCE001G Filter,Bead HH-1M3216-501JT 500OHM IC4015 SAA30671003 S/W,Firmware 3.02.0 0AAD L4003 6210TCE001E Filter,Bead HB-1M2012-800JT(H:1mm) “ SAA30875602 S/W,Firmware 3.06.0 A186 *50PC5DC...
  • Page 48 C1053 R1140 0.1uF TP1017 EDSAFE_VCM_0 TP1042 D3.3V_BCM R1141 R1142 IC1001 1.5M BCM3550KPB5G R1075 R1076 R1077 TP1058 R1085 SD_Y VDAC0_2 DEBUG_OUT_PB DEBUG_OUT_PB TP1061 SD_PR VDAC0_1 DEBUG_OUT_Y R1086 DEBUG_OUT_Y TP1066 DEBUG_OUT_PR SD_PB VDAC0_0 R1087 TP1009 R1015 TP1016 C1008 0.1uF TP1053 TP1054 R1069 DEBUG_OUT_PR MAIN_Y SD_L...
  • Page 49 P4004 ATSC TUNER D4008 D1.2V_BCM A1.2V_BCM P4005 KDS226 P4003 +12.0V TP4134 Q6002 TP4030 TP4033 L4022 L4023 TP4133 SI4925DY C4099 3.3uH MLB-201209-0120P-N2 +5.0V D3.3V_BCM SHILED 0.22uF TP4041 XDR_DATA_R[0-9] IC4003 LVDS Part IC4017 XDR_DATA_G[0-9] C4103 C4074 JP4021 TP6008 R4022 SC4519STRT C4102 C4104 0.1uF C4105 100uF...
  • Page 50 May, 2007 P/NO : MFL36737202 Printed in Korea CANADA: LG Electronics Canada, Inc. 550 Matheson Boulevard East Mississauga, Ontario L4Z 4G3 : LG Electronics Alabama, Inc. P.O.Box 240007, 201 James Record Road Bldg 3 Huntsville, AL 35824...

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