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LG 42PC1DA Service Manual
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LG 42PC1DA Service Manual

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PLASMA TV
SERVICE MANUAL
CHASSIS : PD61A
MODEL : 42PC1DA
42PC1DA-EC
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 : PD61A MODEL : 42PC1DA 42PC1DA-EC 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 ....................10 ADJUSTMENT INSTRUCTIONS ...............12 TROUBLE SHOOTING GUIDE ................17 PRINTED CIRCUIT DIAGRAM ................22 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 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 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...
  • Page 5 All manuals and user guides at all-guides.com 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.
  • Page 6 All manuals and user guides at all-guides.com Front Panel Controls INPUT MENU INPUT Button Power/Standby OK Button PROGRAMME Buttons Indicator POWER Button • illuminates red in standby mode. MENU Button VOLUME Buttons • illuminates white when the set is switched on. - 6 -...
  • Page 7 All manuals and user guides at all-guides.com Back Connection Panel AV IN 4 AUDIO Input AUDIO AUDIO L/MONO VIDEO Input VIDEO VIDEO AC IN COMPONENT IN VIDEO AUDIO S-VIDEO COMPONENT IN MONO AV IN 3 VIDEO AUDIO VARIABLE AUDIO OUT AV 1 AV 2 DTV OUT...
  • Page 8 All manuals and user guides at all-guides.com 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. - 8 -...
  • Page 9 All manuals and user guides at all-guides.com 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

    Chassis Model Name Market Brand Remark PD61A 42PC1DA-EC The United Kingdom 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 11 All manuals and user guides at all-guides.com 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)

  • Page 12: 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 42” PLASMA TV, your connection in Communication dialog. (If your PD61A Chassis.
  • Page 13 All manuals and user guides at all-guides.com 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.
  • Page 14 All manuals and user guides at all-guides.com 8-2. Required Equipment 1) Remote controller for adjustment. 2) AV Pattern Generator. : 802F Pattern Generator, Master(MSPG-925FA), etc. (Which has PAL Composite Video format output with standard(1.0 Vpp) Vertical 100% Color Bar Pattern as Fig7) 8-3.
  • Page 15 2) As below Fig.9, Supply 216Level (85 IRE) full screen 2) 802F Pattern Generator. pattern to Video input. (Which has 720p Ypbpr output with Standard(0.7Vpp) (Input 50Hz, 42PC1DA : AV3/AV4 Input) Vertical 100% Color Bar Pattern as Fig.10) 216 Level (85 IRE) 216 Level (85 IRE) 10-3.
  • Page 16 All manuals and user guides at all-guides.com 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.

  • Page 17: 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 18 All manuals and user guides at all-guides.com 1-2. 42” Power Board Structure T801: Vs Trans T901: Va Trans T112: Low Voltage Trans T501: ST-BY Trans T601: PFC Inductor - 18 -...
  • Page 19 All manuals and user guides at all-guides.com 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...
  • Page 20 All manuals and user guides at all-guides.com 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.
  • Page 21 All manuals and user guides at all-guides.com 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.

  • Page 22: Printed Circuit Diagram

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD MAIN(TOP) - 22 -...
  • Page 23 All manuals and user guides at all-guides.com MAIN(BOTTOM) - 23 -...
  • Page 24 All manuals and user guides at all-guides.com AV (TOP) AV (BOTTOM) - 24 -...
  • Page 25 All manuals and user guides at all-guides.com CONTROL SIDE A/V PRE-AMP - 25 -...

  • Page 26: Block Diagram

    All manuals and user guides at all-guides.com HY5DU281622E IR/TX R/C IN DDRRAM (128MB X2) RS232_Rx/T x_Cortez R/C OUT Cortez 74LCX157 AM 29LV RS232_Rx/T x_STi RGB H/V Rx0/1, T x0/1 F-ROM (2MB) RS232 ICL3232C ( Main CH. RS232_Rx/T x_Hud Hudson LVDS_31P Decoding / RGB_PC/DTV RGB H/V...
  • Page 27 All manuals and user guides at all-guides.com MEMO - 27 -...

  • Page 28: Exploded View

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

  • Page 29: Exploded View Parts List

    PCB Assembly, Display ZSUS ASSY HAND INSERT 42”HD 42X3 VER.B 4980900366C Supporter, CASTING ALDC NON AL NON 4980900366D Supporter, CASTING ALDC NON AL NON 30919E0075D Cover Assembly, 42PC1DA-EC PD61A 42” MA,LOCAL 4980900367A Supporter, ASSY AL FILTER TOP,42PC1,LGEMA 4980900368A Supporter, ASSY AL FILTER BOTT, 42PC1,LGEMA 4980900369A...

  • 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 IC506 0ISTLPH003B 74LVC541APW 1.2TO3.6V 0.01mA BUFFER/LINE IC507 0ISTL00029A MC33078DR2G +-5TO+-18V 2mV 0.002% IC100 0IPRP00703A STI5100GUB 3.3V - - PBGA TR 336P IC600 0IPRP00009A ICL3232CBNZ 3VTO5500MV - SSOP...
  • 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 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 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 40 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 41 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 42 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 43 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 44 All manuals and user guides at all-guides.com LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L105 6210TCE001G HH-1M3216-501JT 500OHM 3.2X1.6X1.3MM L200 6210VC0006A FBMH3216 HM501NT 500OHM 3.2X1.6X1.6mM L106 6210TCE001G HH-1M3216-501JT 500OHM 3.2X1.6X1.3MM L201 6210VC0006A FBMH3216 HM501NT 500OHM 3.2X1.6X1.6mM L107 6210TCE001G HH-1M3216-501JT 500OHM 3.2X1.6X1.3MM L202...
  • Page 45 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 L514 6210TCE001G HH-1M3216-501JT 500OHM 3.2X1.6X1.3MM 366-036B Conector,Wafer 53014-1210 12P 2.00MM L516 6210TCE001G HH-1M3216-501JT 500OHM 3.2X1.6X1.3MM...
  • Page 46 All manuals and user guides at all-guides.com Control Pre-AMP...
  • Page 47 All manuals and user guides at all-guides.com...
  • Page 48 All manuals and user guides at all-guides.com May., 2006 P/NO : 38289S0028D Printed in Korea...

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