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LG 42PG3000 Service Manual
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LG 42PG3000 Service Manual

Chassis: pd83a
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PLASMA TV
SERVICE MANUAL
CHASSIS : PD83A
MODEL : 42PG3000
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Internal Use Only
website:http://biz.LGservice.com
42PG3000-ZA

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Summary of Contents for LG 42PG3000

  • Page 1 Internal Use Only website:http://biz.LGservice.com PLASMA TV SERVICE MANUAL CHASSIS : PD83A MODEL : 42PG3000 42PG3000-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    SPECIFICATION ..................4 ADJUSTMENT INSTRUCTION ..............6 TROUBLE SHOOTING ................15 BLOCK DIAGRAM...................24 EXPLODED VIEW .................. 26 SVC. SHEET ....................PRINTED CIRCUIT DIAGRAM ..............Copyright©2008 LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes...

  • Page 3: Safety Precautions

    An other abnormality exists that must be corrected before the receiver is returned to the customer. Copyright©2008 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...

  • Page 4: Specification

    LGE SPEC. 2)Humidity : 20~80% Storage Environment 3)Temp. : -20~60deg 4)Humidity : 10~90% Input Voltage 100-240V~, 50/60Hz Maker : LG Copyright©2008 LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
  • Page 5 Component Input (1EA) Y/Cb/Cr, Y/Pb/Pr RGB Input RGB-PC HDMI Input(3EA) HDMI-DTV & SOUND Audio Input (3EA) PC Audio, Component, AV Copyright©2008 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 6: Adjustment Instruction

    Adjust Mode In’, Carry the command. Adjust Mode Out - Baud : 115200bps, RS232 Host : PC, Echo : none. Copyright©2008 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 Service Mode by pushing “ADJ” key, execute “ADC Adjust” by pushing “ “ key at “ADC CALIBRATION : RGB-C”. (Fig.3) Connection diagram of power adjustment for measuring Copyright©2008 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 00 00 00 FC 00 34 32 50 47 33 30 30 30 0A 20 20 20 20 5. [5]-Checksum -> Changeable by total EDID data Copyright©2008 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only...
  • Page 9 (2) Enter White Pattern off of service mode, and change off -> (3) Enter “W/B ADJUST” by pushing “ ” key at “3. W/B ADJUST”. Copyright©2008 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10 (3) Serial number D/L must be conformed when it is produced in production line, because serial number D/L is mandatory by D-book 4.0. Copyright©2008 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 0 : TV 40,60,90 10 : DTV 20 : SCART1 30 : SCART2 40 : Component 60 : RGB 90 : HDMI Copyright©2008 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 Factory Reset LOCK Lock System Set Password * * * * Confirm * * * * Block Program TV/DTV/Radio Parental Guidance Copyright©2008 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
  • Page 13 Click the Icon. (3) Click “Connect” Button, and check the below message. (If display “Can’t ”, Check connect computer, jig, and set.) Copyright©2008 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
  • Page 14 * IF you don’t have ADJ R/C, enter ‘Factory Reset’ in OPTION MENU. (8) When TV turn on, check the Updated version on Diagnostics MENU. Copyright©2008 LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes...

  • Page 15: Trouble Shooting

    9. Check the Power Manufacture enterprise Module output circuit Module output circuit Board Output high meaning of a passage tension circuit Copyright©2008 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
  • Page 16 1-2. 42” Power Board Structure Copyright©2008 LG Electronics. Inc. All right reserved. - 16 - LGE Internal Use Only Only for training and service purposes...
  • Page 17 After the cable connect is removed to Power Board, authorized the AC voltage marking on manual. When ST-BY 5V is not operated, replace Power Board. Copyright©2008 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...
  • Page 18 After crisis COF of each board, check the normality operates. normal ? If in case normality operates, correspondence COF Fail is replace the module. Copyright©2008 LG Electronics. Inc. All right reserved. - 18 - LGE Internal Use Only Only for training and service purposes...
  • Page 19 Check the PDP Module Reconnect the LVDS Is the LVDC cable normal? cable in P400 Is the IC100(LGE7383C) Replace the VSC. Output normal? Copyright©2008 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...
  • Page 20 Replace hte VSC B/D Operates ?(LGE7383C) normal? Replace IC100 (LGE7383C) Is the Ctrl Board of Replace Ctrl B/D. Module normal? Copyright©2008 LG Electronics. Inc. All right reserved. - 20 - LGE Internal Use Only Only for training and service purposes...
  • Page 21 (5) In the case of becomes unusual display from Component, RGB mode Is theR,G,B input and H,V Sync Check the input source of the JK701,703 normal? Same as Block A Copyright©2008 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes...
  • Page 22 (8) In the case of becomes unusual display from SCART2 mode Is the Video input od A/V Check the input source Jack(J600) normal? Same as Block A Copyright©2008 LG Electronics. Inc. All right reserved. - 22 - LGE Internal Use Only Only for training and service purposes...
  • Page 23 Only AV/component/PC the Sound IN/OUT input is no sound? IC1000 operates Replace the IC1000 normal? (NTP3000A) Replace the VSC B/D Copyright©2008 LG Electronics. Inc. All right reserved. - 23 - LGE Internal Use Only Only for training and service purposes...

  • Page 24: Block Diagram

    BLOCK DIAGRAM AC_DET, MUTE, /SW_RESET, CLK SW_I2C_3.3V PCM_CD_ON TS_Parallel PCM_ADD PCM_DATA TS_Serial TV Tuner Copyright©2008 LG Electronics. Inc. All right reserved. - 24 - LGE Internal Use Only Only for training and service purposes...
  • Page 25 Copyright©2008 LG Electronics. Inc. All right reserved. - 25 - LGE Internal Use Only Only for training and service purposes...

  • Page 26: Exploded View

    EXPLODED VIEW Copyright©2008 LG Electronics. Inc. All right reserved. - 26 - LGE Internal Use Only Only for training and service purposes...
  • Page 27 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 28 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. PRINTED CIRCUIT BOARD MAIN(BOTTOM) MAIN(TOP) Control B/D(TOP) Control B/D(BOTTOM) PREAMP B/D(TOP) PREAMP B/D(BOTTOM) Copyright©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 30 Apr., 2008 P/NO : MFL42222702 Printed in Korea...

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42pg3000-za