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LG 50PZ950S Service Manual
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LG 50PZ950S Service Manual

LG 50PZ950S Service Manual

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PLASMA TV
SERVICE MANUAL
CHASSIS : PD12C
MODEL : 50PZ950S
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67083603(1103-REV00)
50PZ950G
North/Latin America
Europe/Africa
Asia/Oceania
50PZ950S-ZA
50PZ950G-ZA
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

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Summary of Contents for LG 50PZ950S

  • Page 1 North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com PLASMA TV SERVICE MANUAL CHASSIS : PD12C MODEL : 50PZ950S 50PZ950S-ZA MODEL : 50PZ950G 50PZ950G-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. Printed in Korea P/NO : MFL67083603(1103-REV00)

  • Page 2: Table Of Contents

    CONTENTS ..........................2 SAFETY PRECAUTIONS ......................3 SPECIFICATION.........................4 ADJUSTMENT INSTRUCTION ....................6 BLOCK DIAGRAM........................11 EXPLODED VIEW ........................12 SCHEMATIC CIRCUIT DIAGRAM ....................Copyright ©2011 LG Electronics Inc. All rights 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 ©2011 LG Electronics Inc. All rights reserved. - 3 - LGE Internal Use Only Only for training and service purposes...

  • Page 4: Specification

    4) Humidity : 10 % ~ 90 % Input Voltage AC 100 V ~ 240 V, 50 / 60 Hz Maker LG Copyright ©2011 LG Electronics Inc. All rights reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
  • Page 5 RGB/DVI Audio, Component, AV L/R Input SPDIF Out(1 EA) SPDIF Out USB(2EA) For SVC, S/W Download, X-Studio, DivX Ethernet LAN Copyright ©2011 LG Electronics Inc. All rights reserved. - 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 6: Adjustment Instruction

    (1) Start Program and Click ‘start’ Button to connect TV and (2) When download succeed, you can see “OK” on the screen. 3) Adjust by commanding AUTO_COLOR_ADJUST Copyright ©2011 LG Electronics Inc. All rights reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 - Never connect HDMI & D-sub Cable when the user [AV1]Scart_RGB Color Test download EDID . [TV]USB1 Audio Test LAN Port Check 3D Check Copyright ©2011 LG Electronics Inc. All rights reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 2) After turning VR951, voltage of D.M.M adjustment as same as Vs voltage which on label of panel right/top ( R-GAIN deviation ; ±0.5V) G-GAIN B-GAIN Copyright ©2011 LG Electronics Inc. All rights reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
  • Page 9 3) Detach Cable of Wireless Dongle Tool option 5 14921 14921 14920 Tool option 6 Area option / Code Copyright ©2011 LG Electronics Inc. All rights reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10 - Pattern Generator : 3D-GT002, MSHG-600, Diagnostics MENU. MSPG-6100 [SUPPORT HDMI1.4]) MODE : HDMI mode NO. 872 Pattern No.83 Copyright ©2011 LG Electronics Inc. All rights reserved. - 10 - LGE Internal Use Only Only for training and service purposes...

  • Page 11: Block Diagram

    BLOCK DIAGRAM Copyright ©2011 LG Electronics Inc. All rights reserved. - 11 - LGE Internal Use Only Only for training and service purposes...

  • Page 12: 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 13 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN & NAND FLASH Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 14 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN POWER Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 15 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN AUDIO/VIDEO Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 16 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN DDR Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 17 EAX63525101 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. POWER Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 18 EAX63525101 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM/IR Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 19 EAX63525101 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. HDMI Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. COMMON JACK Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 21 EAX63525101 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR SCART THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 22 EAX63525101 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. WIRELESS Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 23 EAX63525101 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. USB/Ethernet/LVDS Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 24 EAX63525101 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR M_REMOCON THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 25 EAX63525101 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. AUDIO[ST] Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 26 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS EAX63525101 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 27 EAX63525101 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. TUNER Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 28 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS EAX63525101 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 29 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR LG8300 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 30 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR LG8300_POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 31 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR LG8300_DDR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 33 PDP TV Repair Guide < Applicable Model > - PD12A/B/C...
  • Page 34 PDP TV Repair Process Index 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 35 Repair Process A. Picture Problem 2010. 12 . 24 Making 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,,,) ☞A1 ☞A2 Check Module pattern...
  • Page 36 Repair Process A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom No Picture/No Sound Revision ☞A1 ☞A2 Check Module pattern Check Check Sound Picture by using “TILT” key Normal Close Sound LVDS Cable on SVC R/C ☞A6 Check Move Video No Picture/ Sound Ok...
  • Page 37 Repair Process A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Mal-discharge/Noise/dark picture Revision Check ☞A15 Picture problem Check CTRL ROM Ver. Type Replace Replace Normal Normal Control board Module type Picture? Picture? Rom Upgrade ☞A14 Mal-discharge Close Close ☞A16 ☞A5...
  • Page 38 Repair Process A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Picture broken/Freezing Revision . By using Digital signal level meter ☞A21 . By using Diagnostics menu on OSD Check RF Signal level ( Menu→SUPPORT→Signal TEST) - Signal strength (Normal : over 50%) - Signal Quality (Normal: over 50%) Check whether other equipments have problem or not.
  • Page 39 Repair Process A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Vertical bar/ Horizontal Bar Revision ☞A19 ☞A1 Check Check Module pattern defect type Regular Replace Normal Vertical by using “TILT” key Module Pattern? Line / Bar on SVC R/C ☞A13 1.Check CTRL B/D ※CTRL B/D: Control board...
  • Page 40 Repair Process B. Power Problem 2010. 12 . 24 Making PDP TV Symptom No Power (Not turn on) Revision ☞A26 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 41 Repair Process B. Power Problem 2010. 12 . 24 Making PDP TV Symptom Turn off (Instant, under watching) Revision ☞A8~A11 ※ 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 42 Repair Process C. Sound Problem 2010. 12 . 24 Making PDP TV Symptom No sound/ Sound distortion Revision 1.No sound( If HDMI Input only have no sound, upload EDID data) Close ☞A25 Check Check Speaker Apply Normal Normal Normal “Speaker ON/Off” setting jack connection SVC Bulletin Sound?
  • Page 43 Repair Process D. General Function Problem 2010. 12 . 24 Making PDP TV Symptom Remote control & Local Key checking Revision 1. Remote controller (R/C) operating error Replace Main B/D ☞A26 ☞A26 ☞A26 Check & Repair Check R/C itself Normal Normal Check B+ 5V Normal...
  • Page 44 PDP TV Repair Process Reference data Index Symptom Detail Page Remark Check Module pattern by Tilt key Audio check method Check Va, Vs on Power Board PDP Module Label Information Check & Adjust –VY,VSC,VZB voltage - 50H3 –VY,VSC(Y-Sus) / VZB(Z-Sus) Video Check Method Fuse Checking Method Y-Sus Board Checking Method(50H3)
  • Page 45 PDP TV Repair Process Reference data Index Symptom Detail Page Remark Defect type cause by PDP Module Picture Problem Connector Type on PDP Module RF Signal level Checking method Check voltage on Power board Power board Checking Method Power Problem Check Power off History Sound Problem Speaker cable checking method...
  • Page 46 Repair Process-Reference data A. Picture Problem Symptom 전자 - 6-2 2010. 12 . 24 Making PDP TV Item Check Module pattern by Tilt key Revision Tilt Key You can see 20 types patterns by using TILT Key on SVC Remote controller (except Old model) <...
  • Page 47 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Audio check method Revision Jack for Speaker connection 1.Check Audio output by using oscilloscope 2.Check whether speaker jack was inserted properly or not. GND ↔ R- or R+ or L- or L+ Audio output waveform...
  • Page 48 Repair Process-Reference data 2010. 12 . 24 Making Input PDP TV All Input Audio Problem Block A2-1 Revision Make sure you can’t hear any audio Check speaker for damage. Replace the Speaker Check Connector Replace P1300 P1300 Check IC700 Power Check 17V (P500 #1,2), 17V(L1306), 3.3V(L1307) 3.3V (IC505)
  • Page 49 Repair Process-Reference data 2010. 12 . 24 Making Input PDP TV Digital TV / HDMI Audio Problem Block A2-2 Revision ◆ Digital TV Follow procedure digital TV Check video output video trouble shooting Follow procedure All source audio trouble shooting ◆...
  • Page 50 Repair Process-Reference data 2010. 12 . 24 Making Input PDP TV Analog TV Audio Problem Block A2-3 Revision Follow procedure analog TV video Check video output trouble shooting Check #3 for 5V, #13 for 1.25V, #14 Check IC506 for 5V, IC503 for 1.25V, for 3.3V on TU1500 L504 for 3.3V output Voltage Check SIF signal C1501...
  • Page 51 Repair Process-Reference data 2010. 12 . 24 Making Input PDP TV Component / AV/RGB Audio Problem Block A2-4 Revision Check Connector and cables JK803 (Component) Replace connector or JK900 (SCART) cable if found damaged P801 (RGB) JK800 (Side AV) Check signal JK803 (Component) : R843, R844 JK900 (SCART) : R1024, R1025 Replace the Resistor...
  • Page 52 Repair Process-Reference data 2010. 12 . 24 Making Input PDP TV Optical Audio Problem Block A2-5 Revision Check Signal (JK902 #3) Check 3.3V #2 on JK1003 Check IC505 Output Check SPDIF signal (R851) Replace BCM(IC101) < SPDIF waveform – sample > - Defend on the input signal.
  • Page 53 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Check Va, Vs on Power Board Revision ▶ Check Va & Adjust Va Voltage (Refer to the Module label for Va specification) PDP Module Label ▶ Check Vs & Adjust Vs Voltage (Refer to the Module label for Vs specification) Check Va, Vs Z-Sus Board...
  • Page 54 (Code 128, Contains the manugacture No.) ⑪ Model Name ③ Manugacture No. ⑫ Max. Watt ④ Adjusting Voltage(DC Va, Vs) ⑬ Max. Volts ⑤ Adjusting Voltage (Set up/-Vy/Vsc/Ve/Vzb) ⑭ Max. Amps ⑥ The trade name of LG Electronics ⑦ Manufactured date(Year & Month) ⑧ Warning...
  • Page 55 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Check & Adjust –V voltage(50R3) Revision Voltage Check & Adjustment : 50R3 YSUS board <Module Label> Fuses Vsc adjustment -Vy adjustment 1. Vsc (150V) on Y-Sus B/D - Check Point: R324 - Adjustment Point:...
  • Page 56 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Check & Adjust –V voltage(50R1) Revision Voltage Check & Adjustment : 50R3 ZSUS board <Module Label> Vzb adjustment 3. VZB (115V) on Z-Sus B/D . Check Point: R156 - Adjustment Point: VR204...
  • Page 57 Repair Process-Reference data 2010. 12 . 24 Making Input PDP TV Digital TV Video Problem Block A6-1 Revision Check RF Cable Check Voltage Check TU1500 #3 for 5V, #13 for 5V : IC506 Output 1.25V, #14 for 3.3V and #16 for 3.3V : IC505 Output 2.5V 2.5V : IC507 Output...
  • Page 58 Repair Process-Reference data 2010. 12 . 24 Making Input PDP TV Analog TV Video Problem Block A6-2 Revision Check RF Cable Check 5V voltage Check IC506 Output Voltage on TU1500(Pin3) Check CVBS signal Replace Tuner(TU1500) TU1500 #11 Pin Replace BCM(IC101) <...
  • Page 59 Repair Process-Reference data 2010. 12 . 24 Making Input PDP TV Component Video Problem Block A6-3 Revision Check input signal format Is it supported? Check Component Cable Check signal Check the damage of JK800 on L800, 801, 802 And Replace Connector Replace BCM(IC101) ※...
  • Page 60 Repair Process-Reference data 2010. 12 . 24 Making Input PDP TV RGB(D-Sub) Video Problem Block A6-4 Revision Check input signal format Is it supported? Check RGB Cable conductors for damage Check P801 Replace connector (P801). Check signal, Hsync, Vsync Check IC801 Input/Output R812, R813 Check signal Replace C320, C322, C327...
  • Page 61 Repair Process-Reference data 2010. 12 . 24 Making Input PDP TV AV Video Problem Block A6-5 Revision Check input signal format Is it supported? Check AV Cable for damage or open conductors Check AV port of JK800(Side), Replace connector JK900(Rear) Check signal line JK800-Video : R850 Replace L900,901,902(RGB),...
  • Page 62 Repair Process-Reference data 2010. 12 . 24 Making Input PDP TV HDMI Video Problem Block A6-6 Revision Check input signal format Is it supported? Check HDMI Cable for damage or open conductors Check EDID D/L Re-Download EDID Check JK701, 702, 703, 704 Replace Connector for proper connection or damage Check #56~63 on IC701...
  • Page 63 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Fuse Checking Method Revision < DMM mode > Pic. 1. Fuse check Pic. 1. Pic. 2. 1) Sound comes, the fuse is OK. 2) If Fuse is defects, it should check again voltage of 5V, Va, Va after replacing the fuse. 3) In case there are no voltage of 5V, Va, Vs, the board is failure, it need to replace the board.

  • Page 64: Specifications

    Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Y-Sus Board Checking Method(50H3) Revision ▣ Check Method YSUS board ① Check input voltages(5V, Va, Vs) at P103 connector. ② Check it is short or not between Vs and GND at P103 connector. ③...
  • Page 65 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Z-Sus Board Checking Method(50R1) Revision ① Check input voltages(5V, Va, Vs) at P203 connector. ② Check it is short or not between Vs and GND at P203 connector. ZSUS board ③...
  • Page 66 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Check 5V, 12V on Power B/D Revision PDP Module Label P811 Z-Sus Power Board Y-Sus Board Board P813 Main Control Board Board P813 ▣ Measure 5V voltage ▣...
  • Page 67 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Control Board Checking Method(50H3) Revision ▣ Checking Method ④ Check IC ( IC53, IC51 ) ① Check input voltages(5V of P105 / 18V of P2) at control IC53 IC51 board.
  • Page 68 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Mal discharge Symptom Revision ▣ Dot type Mal-discharge symptom ▣ Dark picture caused by Mal-discharge ▣ Scan type Mal-discharge symptom...
  • Page 69 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom PDP Module Rom Ver. Checking method Revision Rom ver. Label ▣ Check by using SVC Remote controller Press “In-start” →Press ”0413” ※Refer to the Module Rom upgrade manual →...
  • Page 70 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Y Drive B/D Checking method(50R3) Revision ▣ Y drive board Scan IC ※ DMM (Digital Multi-Meter) Input signal connector ※ Check all output pins of scan IC (connector) using DMM.
  • Page 71 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom (Half picture) X- B/D Checking method(50R3) Revision ▣ Half / partly display (or abnormal display) Picture 1. Picture 2. Picture 3. -. Check Va input voltage. abnormal (P121, P120, P220, P221, P320 : Power connector of the X board) Half...
  • Page 72 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Defect type cause by PDP Module Revision First of all, Check whether all of cable between board was inserted properly or not. Next, Check whether there is foreign material on connector. Symptom picture defects description To action...
  • Page 73 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom Connector Type on PDP Module Revision COF Type TCP Type FFC Type 96 Out Put 192 Out Put 1. Check foreign & Connection status TCP (Tape Carrier Package) is film Connector to connect between 2.
  • Page 74 Repair Process-Reference data A. Picture Problem 2010. 12 . 24 Making PDP TV Symptom RF Signal level Checking method Revision ◆ MENU SUPPORT Signal TEST 1. Check whether Signal Strength, Signal Quality is over 50% or not. 2. If Signal Strength, Signal Quality is under 50%,install the Booster to increase signal level.
  • Page 75 Repair Process-Reference data B. Power Problem 2010. 12 . 24 Making PDP TV Symptom Check voltage on Power board Revision P813 Pin Map Checking Order Checking Order Power B/D↔Main B/D Checking Spec Remark Point STBY AC DET High(3.3V~5V) RL_ON High(3.3V~5V) M_ON High(3.3V~5V)
  • Page 76 Repair Process-Reference data B. Power Problem 2010. 12 . 24 Making PDP TV Symptom Power board Checking Method Revision Power B/D↔ Y-Sus B/D(P811) ◆ Check 5V,Va,Vs voltage : For Voltage specification, Vs Adjustment refer to the PDP Module Label. (VR901) Va Adjustment (VR502) P813...
  • Page 77 Repair Process-Reference data B. Power Problem 2010. 12 . 24 Making PDP TV Symptom Check Power off History Revision ▣ Check Power off History by using SVC Remote controller Press “In-start” →Press” 0000” → Select “Power Off History” → Pop up Module Rom ver. Appear Power off history 5ea.
  • Page 78 Repair Process-Reference data C. Sound Problem 2010. 12 . 24 Making PDP TV Symptom Speaker cable checking method Revision Z-Sus Board Power Board Y-Sus Board Jack for Speaker connection Main Board Control Board Speaker 1.Check whether speaker jack was inserted properly on Main B/D side & speaker side or not. 2.
  • Page 79 Repair Process-Reference data D. General function defect 2010. 12 . 24 Making PDP TV Symptom Check Remote control IR operation Revision KEY1 KEY2 LED-RED Z-Sus Board Power Board Y-Sus Board BLUE_LED_ON +3.3V_ST +3.3V_Normal/ +5V_MULTI Main Board Control Board 3.3V Multi LED_Power_On TOUCH_Ver_CHECK IR Board...
  • Page 80 Repair Process-Reference data D. General function defect 2010. 12 . 24 Making PDP TV Symptom Check Local Key operation KEY1 KEY2 LED-RED Z-Sus Board Power Board Y-Sus Board BLUE_LED_ON +3.3V_ST +3.3V_Normal/ +5V_MULTI Main Board Control Board 3.3V Multi LED_Power_On TOUCH_Ver_CHECK IR Board 1.Check connector was inserted properly on Main board and local switch board.

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