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LG DU-42PX12X Service Manual
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PLASMA TV
SERVICE MANUAL
CHASSIS :AF-044A
MODEL : DU-42PX12X DU-42PX12XC
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CANADA : http//biz.lgservice.com
USA
: http//www.lgservice.com
: http//lgservice.com/techsup.html

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Summary of Contents for LG DU-42PX12X

  • Page 1 All manuals and user guides at all-guides.com CANADA : http//biz.lgservice.com : http//www.lgservice.com : http//lgservice.com/techsup.html PLASMA TV SERVICE MANUAL CHASSIS :AF-044A MODEL : DU-42PX12X DU-42PX12XC CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
  • Page 2 An other abnormality exists that must be corrected before the receiver is returned to the customer. CANADA: LG Electronics Canada, Inc. 550 Matheson Boulevard East Mississauga, Ontario L4Z 4G3 : LG Customer Interactive Center P.O.Box 240007, 201 James Record Road Huntsville,...
  • Page 3: Table Of Contents

    All manuals and user guides at all-guides.com TABLE OF CONTENTS SPECIFICATIONS..............4 DESCRIPTION OF CONTROLS ...........5 ADJUSTMENT INSTRUCTIONS ..........8 BLOCK DIAGRAM...............12 EXPLODED VIEW............14,16 EXPLODED VIEW PARTS LIST ........15,17 REPLACEMENT PARTS LIST ..........18 SCHEMATIC DIAGRAM............PRINTED CIRCUIT BOARDS ..........- 3 -...
  • Page 4: Specifications

    All manuals and user guides at all-guides.com SPECIFICATIONS MODEL DU-42PX12X DU-50PX10 48.3 / 1226.2 41 / 1040 Width (inches / mm) 27.5 / 699.5 30.6 / 778 Height (inches / mm) 3.7 / 95 3.9 / 99 Depth (inches / mm) 98.1 / 44.5...
  • Page 5: Description Of Controls

    All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS Controls Controls - This is a simplified representation of front panel. Image may be somewhat different from your TV. - This manual explains the features available on the DU-50PX10 series TVs. Front Panel Controls Front Panel Controls ON/OFF...
  • Page 6 All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS Connection Options Connection Options Back Connection Panel Back Connection Panel S-VIDEO Input A connection available to provide better A/V 2 picture quality than the video input. VIDEO Input Connects the video signal from a video device.
  • Page 7 All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS Remote Control Key Functions Remote Control Key Functions - When using the remote control, aim it at the remote control sensor on the TV. LIGHT MODE Illuminates the remote control buttons. Selects the remote operating mode: TV, VCR, DVD, CABLE, HDSTB or AUDIO.
  • Page 8: Adjustment Instructions

    All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS 1. Application Object Each PCB Assy must be checked by Check JIG Set before These instructions are applied to all of the PDP TV, AF-044A. assembly. (Especially, be careful Power PCB Assy which can cause fatal Damage to PDP Module.) 2.
  • Page 9 All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS 4-3 Adjustment Method(42/50PY10) (1) Va Adjustment 1) Connect + terminal of D.M.M to Va pin of P805 and connect – terminal to GND pin of P805. 2) Adjust VR351 voltage to match that of the label on the Top/Right of the panel.
  • Page 10 All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS (2) EDID DATA(50PY10) 6. AD9883A-Set Adjustment EDID for DVI (DDC (Display Data Channel) Data) 6-1 Synopsis EDID table = AD9883A-Set adjustment to set the black level and the Gain 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F of optimum with an automatic movement from the analog =>...
  • Page 11 All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS 7. Adjustment of White Balance (8) After adjustment is complete, move to Ez - Adjust screen by pressing the ENTER(Y) KEY. Then exit the adjustment mode by press ADJ KEY. 7-1. Required Equipment (1) Color analyzer (CA-100 or similar product) 7-4.
  • Page 12: Block Diagram

    All manuals and user guides at all-guides.com BLOCK DIAGRAM - 12 -...
  • Page 13 All manuals and user guides at all-guides.com NOTES - 13 -...
  • Page 14: Exploded View

    All manuals and user guides at all-guides.com EXPLODED VIEW - 14 -...
  • Page 15: Exploded View Parts List

    6871VSMF50A PCB ASSEMBLY,SUB TUNER AF044A DU-42PX12X, RS, CKD ANALOG 6871VSMF17B PCB ASSEMBLY,SUB P/AMP AF044A DU-42PX10C CONTROL 6871VSMF17C PCB ASSEMBLY,SUB P/AMP AF044A DU-42PX12X/12XC CONTROL, SKD IN RS 68719SM004A PCB ASSEMBLY,SUB DU-42PX12X, RS, CKD KUSLLWR 3501V00181B BOARD ASSEMBLY,POWER DN-42PY10X AF044A MURATA MPF7413 3141VSNB49C CHASSIS ASSEMBLY,SUB RF03FA LINE FILTER ASSY.
  • Page 16 All manuals and user guides at all-guides.com EXPLODED VIEW(42X2A Module) - 16 -...
  • Page 17 SUPPORTER,MODULE AL RZ-42PY20 VERTICAL 3501V00171A BOARD ASSEMBLY,BASE RZ-42PY20 NON DESK TOP STAND 4980V01057A SUPPORTER,PCB EGI POWER SW. RZ-42PY20 68719MMT30A PCB ASSEMBLY,MAIN AF044A DU-42PX12X AUSYLA DIGITAL MAIN X2A MODULE 6871VSMZ74A PCB ASSEMBLY,SUB PSW AF044B DN/U-50PY/X10 5020V00915A BUTTON,POWER RZ-42PX20 ABS 1KEY NON 6871VSMFA1A...
  • Page 18: Replacement Parts List

    KIA78R09F KEC 5PIN IC111 0IKE704200J KIA7042AF SOT-89 TP 4.2V IC707 0IPMGKE032A KIA78R09F KEC 5PIN IC112 0IZZVA0100A M37272EFSP(OTP) DIP 42P IC800 0ICTMLG018A LGDT4410 LG IC 176P IC114 0IMCRAL006A AT24C16AN-10SI-2.7 8P IC801 0IPRPML001A MIC39100 3P SOT223 0IMCRMN027B MSP4440G-QA-C13-101 IC200 TRANSISTOR IC201 0IMCRPH026A...
  • Page 19 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q130 0TR387500AA CHIP 2SC3875S(ALY) KEC D203 0DD226239AA CHIP KDS226 SOT-23 0TR387500AA CHIP 2SC3875S(ALY) KEC 0DZRM00248A ZENERS,RLZ8.2B-TE11 Q131 D204 Q132 0TR387500AA CHIP 2SC3875S(ALY) KEC D301 0DD184009AA...
  • Page 20 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C148 0CE226SF6DC 22UF MVG 16V 20% C272 0CE476SF6DC 47UF MVG 16V M 0CE226SF6DC 22UF MVG 16V 20% 0CE226SF6DC 22UF MVG 16V 20% C149 C274 C150...
  • Page 21 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C370 0CE105SK6DC 1UF MVG 50V M C753 0CE476SF6DC 47UF MVG 16V M 0CE226SF6DC 22UF MVG 16V 20% 0CE476SF6DC 47UF MVG 16V M C379 C815 C380...
  • Page 22 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R801 0RKZVTA001L 1.0M OHM 1/2 W 5% L215 6210VC0006A FILTER,EMC FBMH3216 HM501NT 0RKZVTA001L 1.0M OHM 1/2 W 5% R802 L220 6210VC0006A FILTER,EMC FBMH3216 HM501NT VR301...
  • Page 23 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION X301 6202VDB007B RESONATOR,CRYSTAL HC49U 20.250MHZ X600 6212AB2015A RESONATOR,CRYSTAL HC-49/SM4H 4MHZ CONNECTOR 6631V25083C CONNECTOR ASSEMBLY,7P 2.5MM 200MM 6631V25084C CONNECTOR ASSEMBLY,12P 2.5MM 200MM 6631V39013Z CONNECTOR ASSEMBLY,8P 3.96MM 650MM 6631V39018B...
  • Page 24 All manuals and user guides at all-guides.com Aug., 2004 P/NO : 3828VD0177G Printed in Korea CANADA: LG Electronics Canada, Inc. 550 Matheson Boulevard East Mississauga, Ontario L4Z 4G3 : LG Customer Interactive Center P.O.Box 240007, 201 James Record Road Huntsville,...
  • Page 25 All manuals and user guides at all-guides.com...
  • Page 26 All manuals and user guides at all-guides.com...
  • Page 27 All manuals and user guides at all-guides.com...
  • Page 28 All manuals and user guides at all-guides.com DIGITAL(TOP) DIGITAL(BOTTOM) SIDE A/V(TOP) SIDE A/V(BOTTOM) POWER(TOP) POWER(BOTTOM) ANALOG(TOP) ANALOG(BOTTOM) CONTROL(TOP) CONTROL(BOTTOM)

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