LG 50PS8000 Service Manual

Chassis : pd91a

Hide thumbs Also See for 50PS8000:

Owner's manual (194 pages)

Table of Contents

Quick Links

Chapters

Table of Contents

Need help?

Do you have a question about the 50PS8000 and is the answer not in the manual?

Questions and answers

Summary of Contents for LG 50PS8000

Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com PLASMA TV SERVICE MANUAL CHASSIS : PD91A MODEL : 50PS8000 50PS8000-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Page 2: Table Of Contents
SAFETY PRECAUTIONS ......................3 SPECIFICATION.........................4 ADJUSTMENT INSTRUCTION ....................7 TROUBLESHOOTING GUIDE ....................12 BLOCK DIAGRAM ........................23 EXPLODED VIEW ........................34 SVC. SHEET ..........................PRINTED CIRCUIT DIAGRAM..................... Copyright©2008 LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes...
Page 3: Safety Precautions
An other abnormality exists that must be corrected before the receiver is returned to the customer. Copyright©2008 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...
Page 4: Specification
Kazakhstan, Latvia, Lithuania, Luxembourg, Morocco, Netherlands, : EN55020 Norway, Poland, Portugal, Romania, Russia, Serbia, Slovenia, Spain, Sweden, Slovakia, Switzerland, Turkey, Ukraine, UK Copyright©2008 LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
Page 5 Storage Environment 3) Temp. : -20 ~ 60deg 4) Humidity : 10 ~ 90% Input Voltage AC100-240V~, 50/60Hz Maker LG Copyright©2008 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
Page 7: Adjustment Instruction
- Caution: If you turn on a still screen more than 20 minutes (Especially digital pattern, cross hatch pattern), an after image may be made in the black level part of the screen. Copyright©2008 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only...
Page 8 - xb 00 60 [RGB Input (1024*768)] - ad 00 10 [Adjust 1024*768 RGB] - aa 00 90 End Adjust mode Copyright©2008 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
Page 9 [ Caution: Set up “RF mode” before launching products. 9-1. Color Temperature Standards According to CSM and Module PLASMA Cool 11000K Medium 9300K Warm 6500K °°°° Copyright©2008 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
Page 10 (illumination is less than 10ux). (4) Measure and adjust after sticking the Color Analyzer (CA- 100+, CA210 ) to the side of the module. Copyright©2008 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
Page 11 : Write data : CMD + LENGTH + ADH + ADL + Data_1 + ... + Data_n Delay : 20ms Copyright©2008 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
Page 34: Exploded View
EXPLODED VIEW IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and EXPLODED VIEW. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Page 47 Right LED(TOP) Right LED(BOTTOM) Center LED(TOP) Center LED(BOTTOM) BLUETOOTH(TOP) BLUETOOTH(BOTTOM) CONTROL(TOP) CONTROL(BOTTOM) Copyright©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 48 Feb., 2009 P/NO : MFL58921602 Printed in Korea...
Page 49 Block Diagram DATA SC1_CVBS_IN / SC1_RGB Serial Flash for Boot Scart 1 SPI_CK/DI/DO FE_VOUT video ADDR2_D[15:0] SC1_L/R IN DDR2 TV_L/R OUT Audio ADDR2_A[12:0] HYB18TC1G160CF BDDR2_D[15:0] SC2_CVBS_IN DDR2 DTV/MNT_VOUT BDDR2_A[12:0] Scart 2 HYB18TC1G160CF SC2_L/R IN DTV/MNT_L/R OUT NVRAM EEPROM_SCL/SDA M24512-WMW6 FE_VMAIN HDCP EEPROM EEPROM_SCL/SDA CAT24WC08W...
Page 50 Power Flow Diagram 5V_Stand-by [AVDD_MPLL] AIC1117A-33 Saturn 6 IC802 (1A) +3.3V_AVDD_MPLL +3.3V_ST HDMI CEC pull-up Stand-by +3.3V_HDMI_ST Bead AZ1117H-3.3 [AVDD_33_1~5] Saturn 6 120ohm 5A +3.3V_AVDD P_+5V IC801 (1A) [AVDD_AU] Bead AZ1117H-1.8 Tuner(TU1100) IC803 (1A) 120ohm 5A +1.8V_TU +3.3V AZ1085S-3.3 NAND flash(IC301) IC804 (3A) Serial flash(IC103) +3.3V_VDDP...
Page 51 Power Flow Diagram P_+5V +3.3V Audio AMP Bead 120ohm 5A +3.3V_CI +1.26V_VDDC Bead Bead Saturn 6 [VDDC_1~27] +5V_GENERAL 120ohm 5A 120ohm 5A Bead [Pin 17,51] CI slot 120ohm 5A +5V_CI ++5V_CI_ON PCM_5V_CTL [GPIO42/PCM2_CE_N] +5V_TU Bead Tuner(TU1100) [Pin4] 120ohm 5A Bead [scart 1,2 audio OPAMP block] P_12V 120ohm 5A...
Page 52 HW Power On Sequence (LGE3369A)
Page 53 PDP TV Repair Process Index - Trouble shooting by worst symptom Symptom (L) Symptom (M) Page Remark No Picture/Sound OK No Picture/No sound Mal-discharge/Noise/dark picture A. Picture Problem Picture broken/Freezing Vertical bar/ Horizontal Bar No Power (Not turn on) B. Power Problem Turn off (Instant, under watching) C.
Page 54 Repair Process A. Picture Problem Making 2009. 2 . 1 PDP TV Symptom No Picture/Sound OK Revision First of all, Check whether all of cable between board was inserted properly or not. (Main B/D Power B/D, Power B/D Y-sus B/D,Y-Sus B/D Z-Sus B/D,LVDS Cable,Speaker Cable,IR B/D Cable,,,) Check Module pattern Check...
Page 55 Repair Process A. Picture Problem Making 2009. 2 . 1 PDP TV Symptom No Picture/No Sound Revision Check Module pattern Check Check Sound by using “TILT” key Normal Normal Close Sound LVDS Cable on SVC R/C Replace Move Main B/D No Picture/ Sound Ok Section Repair/Replace...
Page 56 Repair Process A. Picture Problem Making 2009. 2 . 1 PDP TV Symptom Mal-discharge/Noise/dark picture Revision Check Picture problem Check CTRL ROM Ver. Type Replace Replace Normal Normal Control board Module type Picture? Picture? Rom Upgrade Mal-discharge Close Close Check Check voltage Scan Normal...
Page 57: Picture Broken/Freezing
Repair Process A. Picture Problem Making 2009. 2 . 1 PDP TV Symptom Picture broken/Freezing Revision . By using Digital signal level meter . By using Diagnostics menu on OSD Check RF Signal level ( Menu Setup Diagnostic) - Signal strength (Normal : over 50%) - Signal Quality (Normal: over 50%) Check whether other equipments have problem or not.
Page 58 Repair Process A. Picture Problem Making 2009. 2 . 1 PDP TV Symptom Vertical bar/ Horizontal Bar Revision Check Check Module pattern defect type Regular Replace Normal Vertical by using “TILT” key Module Pattern? Line / Bar on SVC R/C 1.Check CTRL B/D CTRL B/D: Control board Vertical...
Page 59 Repair Process B. Power Problem Making 2009. 2 . 1 PDP TV Symptom No Power (Not turn on) Revision DC Power on Check Check Repair/Replace Power LED by pressing Power Key Normal Normal IR B/D Power LED R/C IR Operation On Remote control .
Page 60: Turn Off (Instant, Under Watching)
Repair Process B. Power Problem Making 2009. 2 . 1 PDP TV Symptom Turn off (Instant, under watching) Revision To check Power B/D Protection 1. Check Y-Sus/ Z-Sus Board Instant Turn on after pull out connector Power LED (especially Short or Open) between Power B/D &...
Page 61: C. Sound Problem
Repair Process C. Sound Problem Making 2009. 2 . 1 PDP TV Symptom No sound/ Sound distortion Revision 1.No sound( If HDMI Input only have no sound, upload EDID data) Close Check Check Speaker Apply Normal Normal Normal “Speaker ON/Off” setting jack connection SVC Bulletin Sound?
Page 62 Repair Process D. General Function Problem Making 2009. 2 . 1 PDP TV Symptom Remote control & Local switch checking Revision 1. Remote controller (R/C) operating error Replace Main B/D Check & Repair Check R/C itself Normal Normal Check B+ 5V Normal Check IR Normal...
Page 63: Pdp Tv Repair Process Index
PDP TV Repair Process Index - Trouble shooting by input block (Component level check) Symptom (L) Input Block Page Remark Power Problem Power-up Boot fail Digital TV Analog TV Component Video Probelm RGB(D-SUB) AV(Scart / CVBS/ S-Video) HDMI All Input Digital TV / HDMI Audio Problem Analog TV...
Page 64 Making 2009. 2 . 1 PDP TV Symptom Power-Up Boot Fail 1/14 Revision Doesn’t the screen It is identical with Is the Interface whole come out? power off condition? signal operated? 2) Check the Interface signal condition 1) Check the Power off condition Doesn’t the VSC Doesn’t the low pressure Doesn’t the St-by 5V...
Page 65 Making 2009. 2 . 1 Input PDP TV Digital TV Video Problem Block 2/14 Revision Check RF Cable Check 3.3V and 1.8V and 1.2V Voltage Replace IC1103 or IC1104 on IC1103, IC1104(Chip Tuner) Maybe Tuner has problems Check TP Clock, Data, Sync : Replace IC1104 Check Demodulator Input Clock Replace it X1102...
Page 66 Making 2009. 2 . 1 Input PDP TV Analog TV Video Problem Block 3/14 Revision Check RF Cable Check 3.3V and 1.8V and 1.2V Voltage Replace IC1103 or IC1104 on IC1103, IC1104(Chiptuner) Check CVBS signal Replace Tuner(IC1104) IC1104 #16 Pin Replace Mstar(IC100) <...
Page 67 Making 2009. 2 . 1 Input PDP TV Component Video Problem Block 4/14 Revision Check input signal format Is it supported? Check Component Cable Check signal Check the damage of JK701 on C214, C215, C216 And Replace Connector Replace Mstar(IC100) Measured signals depend on the input signal.
Page 68 Making 2009. 2 . 1 Input PDP TV RGB(D-Sub) Video Problem Block 5/14 Revision Check input signal format Is it supported? Check RGB Cable conductors for damage Check JK1001 Replace connector (JK1001). Check signal, Hsync, Vsync Replace R245, R246 R245, R246 Check signal Replace R218, R219, R220 R218, R219, R220...
Page 69 Making 2009. 2 . 1 Input PDP TV AV Video Problem Block 6/14 Revision Check input signal format Is it supported? Check AV Cable / S-Video Cable for damage or open conductors Check AV port of JK902, JK906 Replace or reconnect cable Check signal C210 (SCART1 AV), C211 (SCART2 AV), Replace capacitor...
Page 70 Making 2009. 2 . 1 Input PDP TV HDMI Video Problem Block 7/14 Revision Check input signal format Is it supported? Check HDMI Cable for damage or open conductors Check JK600, JK601, JK602, JK603 Replace the Jack for proper connection or damage Check EDID EEPROM (IC600, 601, 602, 603) Replace IC600, 601, 602, 603...
Page 71 Making 2009. 2 . 1 Input PDP TV All Input Audio Problem Block 8/14 Revision Make sure you can’t hear any audio Check Mstar I2S Output Replace IC100. R231, 232, 233, 234 Check IC701 Power Check 17V (P800 #1,2), 17V(C721), 3.3V(R718) 3.3V (IC701 #21, 36) Check Check IC701 Status...
Page 72 Making 2009. 2 . 1 Input PDP TV Digital TV / HDMI Audio Problem Block 9/14 Revision Digital TV Follow procedure digital TV Check video output video trouble shooting Follow procedure All source audio Replace Mstar IC (IC100) trouble shooting HDMI Check EDID EEPROM (IC600, 601, Re-download EDID data...
Page 73 Making 2009. 2 . 1 Input PDP TV Analog TV Audio Problem Block 10/14 Revision Follow procedure analog TV Check video output video trouble shooting Check R1122,R1159 for 5V Check R1122,R1159 output Check SIF signal L1105 Replace IC1104 Check SIF signal (R1161) Check SIF line Follow procedure All source audio <...
Page 74 Making 2009. 2 . 1 Input PDP TV Component / AV/RGB Audio Problem Block 11/14 Revision Check Connector and cables JK901 (Component) Replace connector or JK900.JK903 (SCART) cable if found damaged JK1001 (RGB) JK902 (Side AV) Check signal R953 / R954 (Component) R1030 / R1031 (RGB) Replace the Resistor R906 / R911, R940 / R941 (SCART)
Page 75 Making 2009. 2 . 1 Input PDP TV Optical Audio Problem Block 12/14 Revision Check SPDIF signal (R230) Replace Mstar IC100 Check Signal (JK904 #3) Replace JK904 < SPDIF waveform – sample > - Defend on the input signal.
Page 76 Making 2009. 2 . 1 Input PDP TV USB Problem Block 13/14 Revision Check USB 2.0 Cable for damage or open conductors Check JK905 Replace JK905 Check IC900 #6 Replace IC900 Replace Mstar IC100 • Exception - USB power could be disabled by inrushing current - In this case, remove the device and try to reboot the TV (AC power off/on)
Page 77 Making 2009. 2 . 1 Input PDP TV No OSD Problem Block 14/14 Revision Check P800 Check GPIO Path of IC100 Disp_EN,VaVs ON, 5V_MNT Check Vs,Va, 5V,17V Replace Power Board on Powwer Board Check P403 Maybe Mstar has problems #17(CKM) , #16(CKP) , Replace IC100 #32(CKP) , #33(CKM) Check LVDS Cable damage...

This manual is also suitable for:

50ps8000-za

LG 50PS8000 Service Manual

Table of Contents

Pdp TV Repair Process Index

Quick Links

Chapters

Need help?

Questions and answers

Summary of Contents for LG 50PS8000

Page 2: Table Of Contents

Page 3: Safety Precautions

Page 4: Specification

Page 7: Adjustment Instruction

Page 12: Troubleshooting Guide

Page 23: Block Diagram

Page 34: Exploded View

Page 57: Picture Broken/Freezing

Page 60: Turn Off (Instant, Under Watching)

Page 61: C. Sound Problem

Page 63: Pdp Tv Repair Process Index

This manual is also suitable for:

LG 50PS8000 Service Manual

Table of Contents

Pdp TV Repair Process Index

Quick Links

Chapters

Need help?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for LG 50PS8000

Summary of Contents for LG 50PS8000

This manual is also suitable for:

Table of Contents