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LG 50PM10 - MU - 50" Plasma TV Service Manual

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PLASMA MONITOR

SERVICE MANUAL

CHASSIS : RF-04GA
MODEL : MT-50PM10/10H
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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  Summary of Contents for LG 50PM10 - MU - 50" Plasma TV

  • Page 1: Plasma Monitor

    website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html PLASMA MONITOR SERVICE MANUAL CHASSIS : RF-04GA MODEL : MT-50PM10/10H CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
  • Page 2: Table Of Contents

    CONTENTS CONTENTS ......................2 SAFETY PRECAUTIONS ..................3 ADJUSTMENT INSTRUCTIONS ................4 SPECIFICATIONS ....................10 ADJUSTMENT INSTRUCTIONS ................13 TROUBLE SHOOTING GUIDE ................15 BLOCK DIAGRAM ....................26 EXPLODED VIEW ....................28 EXPLODED VIEW PARTS LIST ................29 REPLACEMENT PARTS LIST................30 SCHEMATIC DIAGRAM ................... PRINTED CIRCUIT BOARD ..................- 2 -...
  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS IMPORT ANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by the Schematic Diagram and Replacement Parts List. 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 4: Description Of Controls

    SWAP WIN.SIZE Adjusts the sub picture size. SWAP SCAN- PLAY SCAN+ Alternates between main and sub pic- ture. SKIP- STOP SKIP+ POSITION Moves the sub picture to PAUSE POWER DVD BUTTONS direction. controls a LG DVD player. - 4 -...
  • Page 5 - Shown is a simplified representation of the set. - Here shown may be somewhat different from your set. <Front Panel Controls> ON/OFF ON/OFF 1. Main Power Button 5. MENU Displays on screen menus one by one. 2. Remote Control Sensor Exits the current menu.
  • Page 6: Back Panel

    <Back Panel> RS-232C INPUT REMOTE DVI INPUT AUDIO INPUT RGB INPUT RGB OUTPUT AC INPUT (CONTROL/SERVICE) CONTROL AUDIO (MONO) EXTERNAL SPEAKER COMPONENT INPUT AUDIO INPUT S-VIDEO AUDIO INPUT VIDEO INPUT Connection to PC Connection to AV equipment - 6 -...
  • Page 7 <Back Panel> RCA Type REMOTE RS-232C INPUT DVI INPUT AUDIO INPUT RGB INPUT RGB OUTPUT AC INPUT (CONTROL/SERVICE) CONTROL AUDIO (MONO) EXTERNAL SPEAKER COMPONENT INPUT AUDIO INPUT S-VIDEO AUDIO INPUT VIDEO INPUT Scart Type RS-232C INPUT REMOTE DVI INPUT AUDIO INPUT RGB INPUT RGB OUTPUT AC INPUT...
  • Page 8 Displayable Monitor Specification Displayable Monitor Specification RGB / DVI mode RGB / DVI mode Horizontal Vertical Horizontal Vertical Resolution Resolution Frequency(KHz) Frequency(Hz) Frequency(KHz) Frequency(Hz) 31.468 70.09 31.468 70.09 640x350 640x350 37.861 85.08 37.861 85.08 31.469 70.08 31.469 70.08 720x400 720x400 37.927 85.03 37.927...
  • Page 9 Accessories Accessories MUTE POWER PIP INPUT MULTIMEDIA INPUT SELECT EXIT MENU SPLIT ZOOM PIP/DW SLEEP WIN. SIZE POSITION SWAP 1.5V SCAN- PLAY SCAN+ SKIP- STOP SKIP+ PAUSE POWER Owner’s Manual Alkaline batteries Remote Control handset BNC-RCA adapter Power Cord (optional) Optional Extras Optional extras can be changed or modified for quality improvement without any notification new optional extras can be added.
  • Page 10 SPECIFICATIONS NOTE : Specifications and others are subject to change without notice for improvement. Application Range This spec is sheet is applide to the 42”,50” PDP TV used RF-04GA chassis. Brand Chassis Model Name Market Place MZ-42PM10 MZ-42PM12X MZ-50PM10 MZ-50PM20 RF-04GA MT-42PM10 MT-42PM20...
  • Page 11 Aspect Ratio 16:9 PDP Module PDP42V6000 Screen Filter 45% Total light transmittance (E- Mesh) Maker : NBK / Mitsui / LG Chemical Operating Environment 1) Temp : 0~40 deg LGE SPEC 2) Humidity : 0~85% Storage Environment 1) Temp : -20~60 deg...
  • Page 12 Model Specification 1. MZ-42PM10 / 42PM12X / 50PM10 / 50PM20 Item Specification Remark Market Scart Jack (2EA ) PAL, SECAM 4 System : PAL, B/G/I/D/K, SECAM L/, NTSC4.43, PAL60 S-AV Input (1EA ) PAL, SECAM, NTSC 4 System : PAL, B/G/I/D/K, SECAM L/, NTSC4.43, PAL60 Component Input (1EA ) Y/ Cb/ Cr, Y/ Pb/ Pr...
  • Page 13: Adjustment Instructions

    1. Application Object Vs ADJ This spec sjeet os applied all of the 42”, 50”, RF-04GA VR551 chassis bymanufacturing LG TV Plant or sort plant. P806 2. Specification (1) Because this is not a hot chassis, it is not necessary to use an isolation transformer.
  • Page 14: Required Test Equipment

    Adjustment of White Balance 5. DDC Data Input 5-1. Required Test Equipment (1) Required Equipment Color Analyzer( CA-100 or same product) (1) A jig for adjusting PC, DDC (PC serial to D-sub (2) Connecting diagram of equipment for measuring. Connection equipment) (2) S/W for writing DDC (EDID Data Write &...
  • Page 15: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE 1. Power Board 1-1. The whole flowchart which it follows in voltage output state Start check Doesn't the It is identical Is the Interface screen whole come with Power Off signal operated? out? condition? 1. Check the Power Off 2.
  • Page 16 1-2. Sony Power Board Structure T502: Vs Trans T702: Va Trans T101: St-by Trans T103: Low Voltage Trans - 16 -...
  • Page 17 1-3. Sanken Power Board Structure T221: Vs Trans T271: Va Trans T121: St-by Trans T201: Low Voltage Trans - 17 -...
  • Page 18: No Power

    2. No Power (1) Symptom Does’t minute discharge at module. ¯ Non does not come in into the front LED. ¯ (2) Check follow Is plug in power cord? Plug in power cord. Is connect the Line Filter and Power Connect Cable.
  • Page 19: Protect Mode

    3. Protect Mode (1) Symptom After once shining, it does not discharge minutely ¯ from module The Rely falls(The sound is audible “click”) ¯ It is converted with the color where the front LED ¯ is red from green. (2) Check follow Is normal the Power Is output the normality Low/High Replace Power...
  • Page 20 4. No Raster (1) Symptom Does’t minute discharge at module. ¯ It maintains the condition where the front LED is green. ¯ (2) Check follow Is normal the Power Is output the normality Low/High Replace Power Board? voltage except Stand-by 5V? Board.
  • Page 21 5. In case of occur strange screen into specific mode 5-1. In case of does’t display the OSD (1) Symptom LED is green ¯ The minute discharge continuously becomes ¯ accomplished from module (2) Check follow Is normal the LVDS Is the LVDS cable Replace cable.
  • Page 22 5-2. In case of does’t display the screen into specific mode (1) Symptom The screen does not become the display from specific input mode ¯ (RF, AV, Component, RGB, DVI). (2) Check follow Check the all input mode should become normality display. ¯...
  • Page 23 (5) In the case of becomes unusual display from RF, AV, Component 480i mode Is normal the Input voltage, IIC Is normal the Replace IC Communication and HV sync? VPC3230? Is normal the Input voltage, IIC Is normal the S2300? Replace IC Communication and HV sync? Is normal the Input voltage, IIC...
  • Page 24 (7) In the case of becomes unusual display from RGB DTV mode Is normal the Is normal the Input voltage, IIC Replace IC CXA2101? Communication and HV sync? Is normal the Is normal the Input voltage, IIC Replace IC M52758? Communication and HV sync? Is normal the Input voltage, IIC Is normal the Scaler?
  • Page 25 6. In case of no sound (1) Symptom LED is green ¯ Screen display but sound is not output ¯ (2) Check follow Is normal the SPK Is the SPK cable Replace SPK cable cable? connected well? Cable inserts well. Is normal the Is the Flat cable Operates the IC501?
  • Page 26: Block Diagram

    BLOCK DIAGRAM - 26 -...
  • Page 27 BLOCK DIAGRAM - 27 -...
  • Page 28: Exploded View

    EXPLODED VIEW - 28 -...
  • Page 29: Exploded View Parts List

    EXPLODED VIEW PARTS LIST Part No. Descriptions 5900V12003B FAN,DC D12025S SDS 120MM*120MM*25MM 12V/0.2A 1300 5V-13.2V RPM 4980V01018A SUPPORTER, FAN EGI LEFT PDP DN-50PY10 4980V01017A SUPPORTER, FAN EGI RIGHT PDP DN-50PY10 6348Q-C036H PDP, 50” 16:9 1365*768 PDP50X20562.AKLGG (MT-50PM10H) 6348Q-C037F PDP, 50” 16:9 1365*768 PDP50X20662.AKLGG (MT-50PM10) 6871QRH041C PWB(PCB) ASSEMBLY,DISPLAY XRRT ASSY HAND INSERT 50X2A COF RESISTOR 6871QCH045A...
  • Page 30: Replacement Parts List

    0TR387500AA CHIP 2SC3875S(ALY) KEC IC101 0IMMRAL014B AT24C02N-10SI-2.7 ATMEL 8P SOIC Q307 0TR387500AA CHIP 2SC3875S(ALY) KEC IC1100 0ICTMLG018A LGDP4410 LG IC 176P TQFP TRAY IEP Q308 0TR387500AA CHIP 2SC3875S(ALY) KEC IC1200 0IMCRTH002A THC63LVD103 THINE ELECTRONICS 64P Q309 0TR387500AA CHIP 2SC3875S(ALY) KEC...
  • Page 31 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 32 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 33 FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L1425 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP SWITCH L1426 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP SW001 140-313B TACT 2LEAD 160G(TA) LG C&D L1427 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP SW002 140-313B TACT 2LEAD 160G(TA) LG C&D L1428 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP SW003 TACT 2LEAD 160G(TA) LG C&D...
  • Page 39 PRINTED CIRCUIT BOARD MAIN (TOP) MAIN (BOTTOM ) A/V FIX B/D(TOP) A/V FIX B/D(TOP) POWER S/W(BOTTOM) POWER S/W(TOP) CONTROL...
  • Page 40 Jan., 2005 P/NO : 3828VD0198L Printed in Korea...

This manual is also suitable for:

Mt-50pm10Mt-50pm10h