LG 42PM1M Service Manual
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LG 42PM1M Service Manual

LG 42PM1M Service Manual

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PLASMA MONITOR
SERVICE MANUAL
CHASSIS : RF-052A
MODEL : 42PM1M/MA
42PM1M/MA-ZA
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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  • Page 1 All manuals and user guides at all-guides.com website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html PLASMA MONITOR SERVICE MANUAL CHASSIS : RF-052A MODEL : 42PM1M/MA 42PM1M/MA-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com CONTENTS SAFETY PRECAUTIONS ..................3 DESCRIPTION OF CONTROLS ................4 SPECIFICATIONS ....................8 ADJUSTMENT INSTRUCTIONS ...............10 TROUBLE SHOOTING GUIDE ................15 PRINTED CIRCUIT BOARD ................24 BLOCK DIAGRAM .....................26 EXPLODED VIEW ....................28 EXPLODED VIEW PARTS LIST ................29 REPLACEMENT PARTS LIST................30 SCHEMATIC DIAGRAM..................

  • Page 3: Safety Precautions

    All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS MUTE POWER MUTE POWER switches the sound on or off. switches the set on from standby or off to standby. INPUT MULTIMEDIA I/II MULTIMEDIA selects the Component, RGB or DVI I/II (option) modes.
  • Page 5 All manuals and user guides at all-guides.com <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. Memorizes menu changes. 3. Power Standby Indicator Illuminates red in standby mode, Illuminates green when the set is turned on Selects a menu option.
  • Page 6 All manuals and user guides at all-guides.com <Back Panel> AUDIO COMPONENT INPUT 2 MONITOR OUPUT REMOTE RGB OUTPUT CONTROL COMPONENT INPUT 1 A/V INPUT AC INPUT (MONO) (MONO) RS-232C INPUT HDMI/ EXTERNAL SPEAKER VARIABLE AUDIO OUT AUDIO INPUT RGB INPUT (CONTROL/SERVICE) DVI(VIDEO) VIDEO...
  • Page 7 All manuals and user guides at all-guides.com MUTE POWER INPUT MULTIMEDIA I/II LIST/ MENU SPLIT ZOOM TEXT/ SLEEP REVEAL MODE SIZE UPDATE Q.VIEW TIME HOLD INDEX Owner’s Manual Remote Control handset 1.5V Alkaline batteries Power Cord Optional Extras Optional extras can be changed or modified for quality improvement without any notification new optional extras can be added.

  • Page 8: Specifications

    All manuals and user guides at all-guides.com SPECIFICATIONS NOTE : Specifications and others are subject to change without notice for improvement. Application Range This spec is applied to the PDP TV used RF-052A Chassis. Specification Each part is tested as below without special appointment. 1) Temperature : 25±5°C (77±9°F), CST : 40±5 2) Relative Humidity: 65 ±...
  • Page 9 RGB-PC, RGB-DTV RGB Output RGB-PC, RGB-DTV HDMI Input HDMI-PC, HDMI-DTV Audio Input (3EA) PC Audio, Component (1EA), AV(1EA) 42PM1M/MA, 50PM1M/MA, 42PM3MV/MVA PC Audio Audio Input (1EA) 42PM1MB, 50PM1MB, 42PM3MVB Audio Output (2EA) Variable Audio out (1EA) External audio out (1EA)

  • Page 10: Adjustment Instructions

    All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS 1. Application Object 3-2. Channel memory Method 1) Select “PDP” and “Hurricane” on Model dialog. And check These instructions is applied all of the PDP TV, RF-052A your connection in Communication dialog. (If your Chassis.
  • Page 11 All manuals and user guides at all-guides.com 5-2. Setting of device Each PCB assembly must be checked by check JIG set. (Because power PCB Assembly damages to PDP Module, especially be careful) 4. POWER PCB Assy Voltage Adjustments (Va, Vs Voltage Adjustments) 4-1.
  • Page 12 All manuals and user guides at all-guides.com 7. Adjustment of White Balance 7-1. Required Equipment 1) Remote controller for adjustment 2) Color Analyzer (CA-100 or same product) 3) Auto W/B adjustment instrument(only for Auto adjustment) 4) AV Pattern Generator 7-2. Connecting diagram of equipment for measuring (For Auto Adjustment) COLOR ANALYZER...
  • Page 13 All manuals and user guides at all-guides.com 6) Stick sensor to center of the screen and select each items (Red/Green/Blue Gain and offset) using (CH +/-) key on R/C. 7) Adjust Only High Light with R Gain/ B Gain using (VOL+/-) key on R/C.
  • Page 14 All manuals and user guides at all-guides.com 10. Default value in adjustment mode 10-1. Auto Color Balance (Component/RGB) Auto Color Balance(HEX) Auto-RGB To Set Source Cortez Offset1 Green Offset1 Blue Offset1 Offset2 Green Offset2 Blue Offset2 Gain Green Gain Blue Gain Reset To Set...

  • Page 15: Trouble Shooting Guide

    All manuals and user guides at all-guides.com TROUBLE SHOOTING GUIDE 1. Power Board 1-1. The whole flowchart which it follows in voltage output state Start check Doesn't the Is it identical Is the Interface screen whole come with Power Off signal operated? out? condition?
  • Page 16 All manuals and user guides at all-guides.com 1-2. Sony Power Board Structure T502: Vs Trans T702: Va Trans T101: St-by Trans T103: Low Voltage Trans - 16 -...
  • Page 17 All manuals and user guides at all-guides.com 1-3. Sanken, LGIT Power Board Structure T221: Vs Trans T271: Va Trans T121: St-by Trans T201: Low Voltage Trans - 17 -...
  • Page 18 All manuals and user guides at all-guides.com 2. No Power (1) Symptom Does’t minute discharge at module. Ø Non does not come in into the front LED. Ø (2) Check following Is plug in power cord? Plug in power cord. Is the Line Filter and Power Connect the Cable.
  • Page 19 All manuals and user guides at all-guides.com 3. Protect Mode (1) Symptom After once shining, it does not discharge minutely Ø from module The Rely falls(The sound is audible “click”) Ø It is converted with the color where the front LED Ø...
  • Page 20 All manuals and user guides at all-guides.com 4. No Raster (1) Symptom Does’t minute discharge at module. Ø It maintains the condition where the front LED is green. Ø (2) Check following Is the Power Board Is output the normality Low/High Replace the normal? voltage except Stand-by 5V?
  • Page 21 All manuals and user guides at all-guides.com 5. In case of occurring strange screen into specific mode 5-1. In case the OSD does not displayed (1) Symptom LED is green Ø The minute discharged continuously becomes Ø accomplished from module (2) Check following Is the LVDS cable Is the LVDS cable...
  • Page 22 All manuals and user guides at all-guides.com 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 Ø (RF, AV, Component, RGB, DVI). (2) Check following Check the all input mode should become normality display.
  • Page 23 All manuals and user guides at all-guides.com 6. In case of no sound (1) Symptom LED is green Ø Screen display but sound is not output Ø (2) Check following Is the SPK cable Is the SPK cable Replace SPK cable normal? connected well? Cable inserts well.

  • Page 24: Printed Circuit Board

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD MAIN(TOP) MAIN(BOTTOM) - 24 -...
  • Page 25 All manuals and user guides at all-guides.com RCA(TOP) RCA(BOTTOM) CONTROL POWER SWITCH - 25 -...

  • Page 26: Block Diagram

    All manuals and user guides at all-guides.com BLOCK DIAGRAM - 26 -...
  • Page 27 All manuals and user guides at all-guides.com - 27 -...

  • Page 28: Exploded View

    All manuals and user guides at all-guides.com EXPLODED VIEW - 28 -...

  • Page 29: Exploded View Parts List

    Descriptions 5900V06008B FAN, G6015S12B2-RG DONGYANG 60*60*15 7V 1900RPM 6/12V L=500MM 4980V00D43B SUPPORTER, FAN SECC(EGI) MZ-42PM10 PRESS 5900V12006C FAN, B1232S12B2-AA DONGYANG 120*120*32 12V 7.8CFM 950RPM DC9-14V LG CONNECTOR 4980V00E47A SUPPORTER, FAN SECC(EGI) SUPP.BLOWER FAN 6348Q-E123P PDP, 42” 1024*768 PDP42X30000.ADLGB 6871QCH077A PWB(PCB) ASSEMBLY,DISPLAY CTRL ASSY HAND INSERT 42”HD 42X3 CTRL ASSY HAND 6871QDH117A PWB(PCB) ASSEMBLY,DISPLAY YDRV ASSY HAND INSERT 42”HD 42X3 YDRV HAND INSERT...

  • Page 30: Replacement Parts List

    All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q1200 0TR387500AA CHIP 2SC3875S(ALY) BK KEC CHIP 2SC3875S(ALY) BK KEC Q1401 0TR387500AA IC1000 0IPRPML001A MIC39100 MICREL 3P SOT223 R/TP Q1402 0TR387500AA CHIP 2SC3875S(ALY) BK KEC IC1001...
  • Page 31 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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 34 All manuals and user guides at all-guides.com LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L516 6200J000013 MLB-321611-0500P-N2 R/TP 500 OHM 6200J000013 MLB-321611-0500P-N2 R/TP 500 OHM L517 L604 6200J000013 MLB-321611-0500P-N2 R/TP 500 OHM L901 6200J000013 MLB-321611-0500P-N2 R/TP 500 OHM L902 6200J000013 MLB-321611-0500P-N2 R/TP 500 OHM...
  • Page 35 All manuals and user guides at all-guides.com...
  • Page 36 All manuals and user guides at all-guides.com...
  • Page 37 All manuals and user guides at all-guides.com...
  • Page 38 All manuals and user guides at all-guides.com...
  • Page 39 All manuals and user guides at all-guides.com Feb., 2006 P/NO : 3828VD0223W Printed in Korea...

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42pm1ma42pm1 m a-za

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