LG 50PC1R Service Manual
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LG 50PC1R Service Manual

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PLASMA TV
SERVICE MANUAL
CHASSIS : PP62A
MODEL : 50PC1R
50PC1R-ZH
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 TV SERVICE MANUAL CHASSIS : PP62A MODEL : 50PC1R 50PC1R-ZH 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 ....................9 ADJUSTMENT INSTRUCTIONS ...............11 TROUBLE SHOOTING GUIDE ................16 PRINTED CIRCUIT DIAGRAM ................24 BLOCK DIAGRAM .....................27 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 I M P O RTANT 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 Switches the set on from standby or off to standby. POWER INPUT POWER TV INPUT Returns from AV1 , AV2 , S-Video2 , AV3 , AV4 (except INPUT 42PC3RV * ), Component , RGB , HDMI1/DVI or to the TV mode.
  • Page 5 All manuals and user guides at all-guides.com MODE Selects the remote operating modes. INPUT POWER These buttons are used for teletext. TELETEXT INPUT BUTTONS For further details, see the ‘Teletext’ section. TEXT SIZE POSTION PIP PR- PIP PR+ PIP INPUT SWAP THUMBSTICK Allows you to navigate the on-screen menus and...
  • Page 6 All manuals and user guides at all-guides.com Front Panel Controls INPUT MENU Power/Standby Indicator • illuminates red in standby mode. • illuminates white when the set is switched on. INPUT MENU INPUT MENU INPUT Button OK Button PROGRAMME Buttons POWER Button MENU Button VOLUME Buttons - 6 -...
  • Page 7 All manuals and user guides at all-guides.com Back Connection Panel AUDIO Input AV IN 4 Connections are available for listen- ing stereo sound from an external device. AUDIO AUDIO L/MONO VIDEO Input VIDEO VIDEO Connects the video signal from a video device.
  • Page 8 Q.VIEW MUTE TIME REVEAL INDEX Polishing Cloth Owner’s Manual Batteries Remote Control Power Cord Polish the screen with the cloth (Option) For 42PC1R * , 42PC3R * , 50PC1R * 2-bolts for stand assembly 2-Wall brackets 2-eye-bolts - 8 -...

  • Page 9: Specifications

    Chassis Model Name Market Brand Remark PP62A 50PC1R-ZH 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±10% 3) Power Voltage: Standard Input voltage (100-240V~, 50/60Hz) * Standard Voltage of each product is marked by models.
  • Page 10 All manuals and user guides at all-guides.com 2. Model General Specification Item Specification Remark Market Broadcasting system PAL-BG/I/DK, SECAM BAND SECAM E2~E12 Available Channel E21~E69 CATV S1~S20 HYPER S21~S41 Receiving system Upper Heterodyne Scart Jack (2EA) PAL, SECAM, NTSC,NTSC4.43 4 System : PAL, SECAM, NTSC, PAL60 Video Input (2EA) PAL, SECAM, NTSC,NTSC4.43 4 System : PAL, SECAM, NTSC, PAL60...

  • Page 11: 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 are applied to all of the 50” PLASMA TV, your connection in Communication dialog. (If your PP62A Chassis.
  • Page 12 All manuals and user guides at all-guides.com 4. Auto AV(CVBS) Color Balance 5-3. Method of Auto RGB Color Balance 1) Input the Component 720p 100% Color Bar signal into Component1 or Component2. 4-1. Requirement 2) Set the PSM to Dynamic mode in Picture menu. It is very import to use correct adjustment pattern like (Fig.4).
  • Page 13 All manuals and user guides at all-guides.com 7. POWER PCB Assy Voltage 8-3. Preparation for Adjustment 1) As above Fig. 8, Connect the Set, EDID Download Jig, PC Adjustments (Va, Vs Voltage adjustments) & Cable. 2) Turn on the PC & EDID Download Jig. And Execute the 7-1.
  • Page 14 All manuals and user guides at all-guides.com 3) Enter the White Balance adjustment mode by pressing the 8-5. Sequence of Adjustment INSTART key twice(White Balance) on R/C. 1) Init the data. 4) Stick sensor to center of the screen and select each items 2) Load the EDID data.( Open File : Analog ,Digital) (CH +/-) key (Red/Green/Blue Gain and Offset) using...
  • Page 15 All manuals and user guides at all-guides.com 11-2. White Balance (89) (Fig. 12) Default Value on OSD 12. Power-off History 1) This function indicated Power off history. 2) You can go into this mode by ADJ key in ADJ remocon. (Fig.

  • Page 16: 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 17 All manuals and user guides at all-guides.com 1-2. 50” Power Board Structure T801: Vs Trans T901: Va Trans T902: Vs aux. Trans L851: Vs Inductor T112: Low Voltage Trans T501: ST-BY Trans T601: PFC Inductor - 17 -...
  • Page 18 All manuals and user guides at all-guides.com 2. No Power (1) Symptom 1) Doesn’t minute discharge at module. 2) Non does not come in into the front LED. (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 1) After once shining, it does not discharge minutely from module. 2) The Rely falls.(The sound is audible “click”) 3) It is converted with the color where the front LED is red from green.
  • Page 20 All manuals and user guides at all-guides.com 4. No Raster (1) Symptom 1) Doesn’t minute discharge at module. 2) It maintains the condition where the front LED is green. (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 1) LED is green. 2) The minute discharged continuously becomes 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 1) The screen does not become the display from specific input mode. (RF, AV, Component, RGB, DVI) (2) Check following 1) 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 1) LED is green. 2) Screen display but sound is not output. (2) Check following Is the SPK cable Is the SPK cable Replace SPK cable normal? connected well? Cable inserts well.

  • Page 24: Printed Circuit Diagram

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD MAIN(TOP) - 24 -...
  • Page 25 All manuals and user guides at all-guides.com MAIN(BOTTOM) - 25 -...
  • Page 26 All manuals and user guides at all-guides.com CONTROL PRE-AMP SIDE A/V - 26 -...

  • Page 27: Block Diagram

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

  • Page 28: Exploded View

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

  • Page 29: Exploded View Parts List

    Plate Assembly, AV 50PC1R-CH SKD 3301900094T Plate Assembly, ASSY 50PC1R-ZH SKD 68719MMV68B PCB Assembly, Main MAIN1 M.I PP62A 50PC1R-ZH AEULLHX H3 68719SMH44A PCB Assembly, Sub SUB M.I PP62A 42PC1R AMLLKX 68719SML93A PCB Assembly, Sub SUB M.I PP62A 42PC1R-ZH SETLLJP DMS SKD PREAMP...

  • Page 30: Replacement Parts List

    All manuals and user guides at all-guides.com R E P L ACEMENT PA RTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q200 0TR150400BA 2SA1504S(ASY) PNP -5V -50V -50V Q201 0TR387500AA 2SC3875S(ALY) NPN 5V 60V 50V 150MA IC1000 0IPRPML001A MIC39100 2.3TO26V SOT223 R/TP 5P...
  • 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 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 35 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 36 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 37 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 38 All manuals and user guides at all-guides.com The components identified by mark critical for safety. Replace only with part number specified. LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L1002 6200J000013 MLB-321611-0500P-N2 500OHM L1858 6200J000013 MLB-321611-0500P-N2 500OHM L1004 6200J000013 MLB-321611-0500P-N2 500OHM L1859...
  • Page 39 All manuals and user guides at all-guides.com LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION P401 6602T25008B Conector,Wafer SMW250-03P 3P 2.50MM P600 366-932B Conector,Wafer GIL-G-03P-S3T2-E 3P 2.50MM P800 6602T20008J Conector,Wafer SMW200-10P 10P 2.00MM P803 6602T12007D Conector,Wafer GT121-31P-TD 31P 1.25MM MISCELLANEOUS 68509A0004E Cable,Assembly RCA R/A TO RCA BLACK 100MM...
  • Page 40 All manuals and user guides at all-guides.com CORTEZ HDMI...
  • Page 41 All manuals and user guides at all-guides.com DDR MEMORY...
  • Page 42 All manuals and user guides at all-guides.com Mar., 2006 P/NO : 38289S0024D Printed in Korea...

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