1. Manuals
  2. Brands
  3. LG Manuals
  4. TV
  5. 42PC1D Series
  6. Service manual

LG 42PC1D Service Manual

Plasma tv
Hide thumbs Also See for 42PC1D:
Table of Contents

Advertisement

Quick Links

See also: Owner's Manual
PLASMA TV

SERVICE MANUAL

CHASSIS : PD61A
MODEL : 42PC1D/DV
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
42PC1D/DV-EC
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

Advertisement

Table of Contents
loading

Related Manuals for LG 42PC1D

Summary of Contents for LG 42PC1D

  • Page 1: Service Manual

    PLASMA TV SERVICE MANUAL CHASSIS : PD61A MODEL : 42PC1D/DV 42PC1D/DV-EC CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ..................3 DESCRIPTION OF CONTROLS ................4 SPECIFICATIONS ....................10 ADJUSTMENT INSTRUCTIONS ...............12 TROUBLE SHOOTING GUIDE ................17 PRINTED CIRCUIT DIAGRAM ................22 BLOCK DIAGRAM .....................26 EXPLODED VIEW ..................28,30 EXPLODED VIEW PARTS LIST ..............29,31 REPLACEMENT PARTS LIST................32 SCHEMATIC DIAGRAM..................

  • 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

    DESCRIPTION OF CONTROLS POWER Switches the set between ON and STANDBY. D/A TV (Digital TV / Analogue TV) Selects digital or analogue mode. INPUT Selects the DTV, TV, AV, Component, RGB or HDMI INPUT D/A TV POWER modes. switches the set on from standby. TV, DVD, VCR Selects the remote operating mode: TV, VCR, DVD.
  • Page 5 MENU Displays on screen menus one by one. Exits the current menu. Memorizes menu changes. TELETEXT BUTTONS INPUT D/A TV These buttons are used for teletext. POWER Text button is used to enable teletext services while other buttons are for teletext functions. * For further details, see the ‘Teletext’...

  • Page 6: Front Panel Controls

    Front Panel Controls INPUT MENU INPUT Button OK Button PROGRAMME Buttons Power/Standby POWER Button Indicator MENU Button VOLUME Buttons • illuminates red in standby mode. • illuminates white when the set is switched on.

  • Page 7: Audio Input

    Back Connection Panel AUDIO Input AUDIO AUDIO L/MONO VIDEO Input VIDEO VIDEO AV IN 4 AC IN COMPONENT IN S-VIDEO COMPONENT IN VIDEO AUDIO MONO AV IN 3 VIDEO AUDIO VARIABLE AUDIO OUT AV 1 AV 2 DTV OUT AV 1/2 HDMI/DVI IN 42PC1DV/42PC1DVA DTV OUT...
  • Page 8 ACCESSORIES Owner’s Manual Power Cord 75Ω RF Coaxial Owner’s Manual Remote Control / Batteries For 42PC1D/DV/DVA, 42PC3D/DV, 50PC1D 2-Wall brackets 2-eye-bolts 2-bolts Polishing Cloth (42/50PC1D only) (42PC1D/DV/DVA, Polish the screen 42PC3D/DV only) with the cloth.
  • Page 9 STAND INSTALLATION (OPTION) Place the set with the screen facing down on a cushion or soft cloth as shown in Figures 1. Before unfolding the stand, please make sure two locks (A) on the bottom of the stand push outward. Pull the stand out as shown above in Figures 2 ~ 3.

  • Page 10: Specifications

    PDP Module 42PC1D = PDP42V3 42PC1DV = PDP42V8 RGB Closed Type, Film Filter Operating Environment 1)Temp. : 0~40deg LGE SPEC. 2)Humidity : 0~85% Storage Environment 3)Temp. : -20~60deg 4)Humidity : 0~85% Input Voltage 100-240V~, 50/60H Maker : Sony/ LG Innotek/ Sanken...
  • Page 11 2. Model General Specification Item Specification Remark Market The United Kingdom Broadcasting system 1) PAL-BG 2) PAL-DK 3) PAL-I, I’ 4) DVB-T(ID TV) 5) SECAM-L Receiving system Analog : Upper Heterodyne Digital : COFDM Scart Jack (3EA) PAL, SECAM Video Input (2EA) PAL, SECAM, NTSC 4 System : PAL, SECAM, NTSC, PAL60 S-Video Input (2EA)

  • Page 12: Adjustment Instructions

    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 42” PLASMA TV, your connection in Communication dialog. (If your PD61A Chassis. connection is ‘NG’, then set your PORT(COM1,2,3,...) correctly.) 2.

  • Page 13: Adjustment Method

    4. Sub Program Down Load (2) Vs Adjustment 1) Connect + terminal of D.M.M to Vs pin of P812, connect 1) Select “ PDP” and “Hurricane” on Model dialog. and check – terminal to GND pin of P812. your connection in Communication dialog. (If your 2) After turning VR951, voltage of D.M.M adjustment as connection is ‘NG’, then set your PORT(COM1,2,3,...) same as Va voltage which on label of panel right/top.

  • Page 14: W-Y-C-G-M-R-Blue-Black

    [Analog(RGB) : 42PC1D-EC.ANA] [Analog(RGB) : 42PC1DV-EC.ANA] (Fig. 7) Auto AV(CVBS) Color Balance Test Pattern (for VGA, XGA) [Digital(HDMI) : 42PC1D-EC.DVI] (VGA only) [Digital(HDMI) : 42PC1DV-EC.DVI] (VGA only) 9. Adjustment of White Balance [Digital(HDMI) : 42PC1D-EC.DVI] (XGA only) [Digital(HDMI) : 42PC1DV-ECI.DVI] (XGA only) 9-1.

  • Page 15: W-Y-C-G-M-R-Blue-Black

    10. Auto Component Color Balance Auto adjustment Map(RS-232C) Type PD61A : 42PC1DV-EC 10-1. Requirement Baud Rate Data bit Stop bit Parity - It is very import to use correct adjustment pattern like Fig.10. 115200 NONE Within the pattern, color sequence should be aligned : W-Y-C-G-M-R-BLUE-BLACK.

  • Page 16: White Balance

    11-3. Method of Auto RGB Color Balance 13. EEPROM Data Write 1) Input the PC 1024x768 60Hz 100%Color bar into RGB. 13-1. Signal TABLE 2) Set the PSM to Standard mode in Picture menu. 3) Press ADJ key on R/C for adjustment. CMD LENGTH ADH ADL DATA_1 DATA_N CS DELAY...

  • Page 17: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE 1. Power Board 1-1. The whole flowchart which it follows in voltage output state Start check Is it identical Doesn't the Is the Interface screen whole come with Power Off signal operated? out? condition? 1. Check the Power Off 2.
  • Page 18 1-2. 42” Power Board Structure T801: Vs Trans T901: Va Trans T112: Low Voltage Trans T501: ST-BY Trans T601: PFC Inductor...
  • Page 19 2. In case of occurring strange screen into specific mode 2-1. In case the OSD does not displayed (1) Symptom 1) LED is white. 2) The minute discharge continuously becomes accomplished from the module. (2) Check follow Is the LVDS cable Is the LVDS cable Replace the cable.
  • Page 20 2-2. 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. 2) Check the Video(Main)/Data(Sub), Video(Main)/Video(Sub) should become normality display from the PIP mode or DW mode.
  • Page 21 3. In case of no sound (1) Symptom 1) LED is white. 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. Is connected Cable inserts well.

  • Page 22: Printed Circuit Diagram

    PRINTED CIRCUIT BOARD MAIN(TOP)
  • Page 23 MAIN(BOTTOM)
  • Page 24 AV (TOP) AV (BOTTOM)
  • Page 25 CONTROL SIDE A/V PRE-AMP...

  • Page 26: Block Diagram

    BLOCK DIAGRAM...
  • Page 27 MEMO...

  • Page 28: Exploded View

    EXPLODED VIEW ( 42PC1D )

  • Page 29: Exploded View Parts List

    PLATE ASSEMBLY, AV 3301900098A 3300900017H(PRESS) 42PC I-DTV 3301900092M PLATE ASSEMBLY, ASSY 42PC1D-EC DIGITAL COVER ASSY 2HDMI 68719MMU84A PWB(PCB) ASSEMBLY, MAIN MAIN1 M.I PD61A 42PC1D-EC AEKLLEX IDTV ENGLAND XGA MANUAL 68719SMJ93A PWB(PCB) ASSEMBLY, SUB SUB M.I PD61A 42PC1D-FC AEKLLEX IDTV ENGLAND XGA MANUAL 68719SML96A PWB(PCB) ASSEMBLY, SUB SUB M.I PD61A 42PC1DV-EC SEKLLJP CONTROL KEY...
  • Page 30 EXPLODED VIEW ( 42PC1DV )
  • Page 31 EXPLODED VIEW PARTS LIST The components identified by mark critical for safety. Replace only with part number specified. Part No. Descriptions 6400WMCX03A SPEAKER, WOOFER G1560102 MACOM WOOFER 8OHM 15/20W 82DB OTHERS 100HZ 193*57MM 6400DTTX02B SPEAKER, TWEETER EN15D-6659 TOPTONE TWEETER(DOME) 8OHM 15/20W 78DB OTHERS PC1 MODEL 6348Q-E127T PDP, 42”...

  • Page 32: Replacement Parts List

    CM202100TR CAMD TSSOP38 IC201 692791090AC SOFT WARE, 1.05V ECD5 42PC1DV-EC IC1401 0IMCR02006A FLI8125BBLF GENESIS 208P/PQFP IC201 692791120AC SOFT WARE , 3.00V 186E 42PC1D-EC 0IKE704200J IC1403 KIA7042AF SOT89 TP 4.2V VOLTAGE DETECTOR IC703 692791147AA SOFT WARE, 1.05V . PDP 42PC1DV-EC IC200 0IPMG78391A...
  • Page 33 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 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 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 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 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 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 39 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 40 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 41 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 42 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 43 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 44 SKHMPW 5P CHIP TACT JALPS .V .A C949 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R SW101 140-313B TACT, , 2LEAD 160G(TA) LG C&D 5V 0.001A C950 0CE226WF6DC 22UF MVK 16V 20% R/TP(SMD) SMD SW102 140-313B TACT, 2LEAD 160G(TA) LG C&D 5V 0.001A...
  • Page 45 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L101 6210TCE001G HH1M3216501 CERATEC 3216MM R/TP L1132 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L101 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L1133 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L1010 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L1134 6210VC0006A FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP...
  • Page 46 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L403 6210TCE001G HH1M3216501 CERATEC 3216MM R/TP R1379 6210TCE0013 CERATEC R/TP HB1M1608121J,120 OHM L404 6200J000013 MLB3216110500PN2 MAG LAYERS R/TP T1002 6200JB8008S SCR470R500 NIIGATA R/TP SMD L405 6200J000013 MLB3216110500PN2 MAG LAYERS R/TP X101 6202TST001H CRYSTAL, SX1 SUNNY 27MHZ +/ 30 PPM...
  • Page 47 The components identified by mark critical for safety. Replace only with part number specified. LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION 6852TAZ012X CABLE,COAXIALCOAXIAL,LINK S/TS/T 3C 2V JK606 68719SMJ52A PWB(PCB) ASSEMBLY,SUBSUB M.I PD61A SPDIF TU201 6700MF0012C TUNER, TAFMW103P LGIT MULTI TU300 6700DF0002A TUNER, TDFBG236P LGIT DVBT...
  • Page 48 Control Pre-AMP...
  • Page 50 Feb., 2006 P/NO : 38289S0028A Printed in Korea...

This manual is also suitable for:

42pc1dv42pc1dv-ec42pc1d/dv42pc1d/dv-ec

Table of Contents