Zenith P42W46X - 42" Flat Panel Plasma ED-Ready TV Service Manual
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Zenith P42W46X - 42" Flat Panel Plasma ED-Ready TV Service Manual

Service manual
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SERVICE MANUAL
Product Type:
Chassis:
Manual Series:
Manual Part #:
Model Line:
Product Year:
Description of Controls .................................................4
Product Specifications ..................................................7
Adjustment Instructions ................................................8
Diagrams ...................................................................23
Parts List ...................................................................27
Schematics ....................................................................
Printed in Korea
PLASMA
RF-043A
2004
CONTENTS
Published Oct. 2003
by Technical Publications
LG Electronics USA, Inc.
201 James Record Road,
Huntsville, Alabama 35824-1513
Copyright © 2003 by Zenith Electronics Corporation
http//www.zenithservice.com
Model Series:
P42W46X
P42W46XH

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Summary of Contents for Zenith P42W46X - 42" Flat Panel Plasma ED-Ready TV

  • Page 1 Product Specifications ..........7 Adjustment Instructions ..........8 Diagrams ..............23 Parts List ..............27 Schematics ..............Published Oct. 2003 by Technical Publications LG Electronics USA, Inc. 201 James Record Road, Huntsville, Alabama 35824-1513 Copyright © 2003 by Zenith Electronics Corporation Printed in Korea...
  • Page 2 When servicing this product, under no circumstances should the original design danger of electrical shock. DO NOT USE A LINE ISOLATION be modified or altered without permission from Zenith Electronics Corporation. TRANSFORMER DURING THIS TEST. Use an AC voltmeter having 5000...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS DESCRIPTION OF CONTROLS ...........4 SPECIFICATIONS..............7 ADJUSTMENT INSTRUCTIONS ..........8 TROUBLE SHOOTING GUIDE ...........12 BLOCK DIAGRAM...............23 EXPLODED VIEW...............26 EXPLODED VIEW PARTS LIST .........27 REPLACEMENT PARTS LIST ..........28 SCHEMATIC DIAGRAM............PRINTED CIRCUIT BOARD ........... - 3 -...

  • Page 4: Description Of Controls

    DESCRIPTION OF CONTROLS Controls Controls - This is a simplified representation of front panel. Here shown may be somewhat different from your TV. - This manual explains the features available on the P42W46X. Front Panel Controls Front Panel Controls ON/OFF TV/VIDEO MENU ON/OFF Button...
  • Page 5 DESCRIPTION OF CONTROLS Connection Options Connection Options S-VIDEO Input A connection available to provide better picture quality than the video input. VIDEO Input Connects the video signal from a video device. AUDIO Input Use to connect to hear stereo sound from an external device.

  • Page 6: Remote Control Key Functions

    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. MUTE MUTE POWER POWER Switches the sound on or off. Turns your TV on or off. TVVIDEO TV/VIDEO MULTIMEDIA MTS Selects: TV, Video 1-2, Component...
  • Page 7 SPECIFICATIONS P42W46X MODEL 48.4 / 1210 Width (inches / mm) Height (inches / mm) 27.6 / 701 11.4 / 290 Depth (inches / mm) Weight (pounds / kg) 66 / 22.9 852 x 480 (Dot) Resolution Power requirement AC100-240V, 60Hz NTSC Television System VHF 2 ~ 13, UHF 14 ~ 69, CATV 1 ~ 125...

  • Page 8: Specifications

    ADJUSTMENT INSTRUCTIONS 1. Application Object (2) After installing the Gprobe, [Option -> Connection Setup] or click the icon indicated in the picture and then setup as These instructions apply to the RF-043A Chassis. below the picture. (In case of the port (second one), set to the serial port of the connected PC.

  • Page 9: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS Each PCB assembly must be checked by check JIG set. (Because power PCB Assembly damages to PDP Module, especially be careful) 5. POWER PCB Assy Voltage Adjustments (Va, Vs Voltage Adjustments) 5-1. Test Equipment : D.M.M. 1EA 5-2. Connection Diagram for Measuring Refer to Fig 5.
  • Page 10 ADJUSTMENT INSTRUCTIONS 2) After turning RV401, voltage of D.M.M adjustment as (2) Supply Gray Pattern (216 Level Full Size Pattern) signal same as Va voltage which on label of panel right/top. to VIDEO input. (AV2 Input 60Hz) (Deviation; ±0.5V) (Refer to Fig. 6) (3) To adjust, stick sensor to 216 Gray Level Pattern, press 5-4.
  • Page 11 ADJUSTMENT INSTRUCTIONS 9. Auto Adjustment Map(RS-232C) 6) If Check Sum is not 53, repeat 3) ~ 4). 7) If Check Sum is 53, DDC data for Analog-RGB input is completed. RF-043A Type RS232 (2) DDC Data input for Digital-RGB(DVI) 1) Connect PC Serial to DVI Cable of jig for DDC Baud Rate Data bit Stop bit...

  • Page 12: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE 1. Power Board 1-1. The whole flowchart which it follows in voltage output state Start check Doesn't the It is identical Is the Interface screen whole come with Power Off signal operated? out? condition? 1. Check the Power Off 2.
  • Page 13 TROUBLE SHOOTING GUIDE 1-2. Sony Power Board Structure T502: Vs Trans T702: Va Trans T101: St-by Trans T103: Low Voltage Trans - 13 -...
  • Page 14 TROUBLE SHOOTING GUIDE 1-3. Sanken Power Board Structure T221: Vs Trans T271: Va Trans T121: St-by Trans T201: Low Voltage Trans - 14 -...
  • Page 15 TROUBLE SHOOTING GUIDE 2. No Power (1) Symptom Does’t minute discharge at module. ¯ Non does not come in into the front LED. ¯ (2) Check follow Is plug in power cord? Plug in power cord. Is connect the Line Filter and Power Connect Cable.
  • Page 16 TROUBLE SHOOTING GUIDE 3. Protect Mode (1) Symptom After once shining, it does not discharge minutely ¯ from module The Rely falls(The sound is audible “click”) ¯ It is converted with the color where the front LED ¯ is red from green. (2) Check follow Is normal the Power Is output the normality Low/High...
  • Page 17 TROUBLE SHOOTING GUIDE 4. No Raster (1) Symptom Does’t minute discharge at module. ¯ It maintains the condition where the front LED is green. ¯ (2) Check follow Is normal the Power Is output the normality Low/High Replace Power Board? voltage except Stand-by 5V? Board.
  • Page 18 TROUBLE SHOOTING GUIDE 5. In case of occur strange screen into specific mode 5-1. In case of does’t display the OSD (1) Symptom LED is green ¯ The minute discharge continuously becomes ¯ accomplished from module (2) Check follow Is normal the LVDS Is the LVDS cable Replace cable.
  • Page 19 TROUBLE SHOOTING GUIDE 5-2. In case of does’t display the screen into specific mode (1) Symptom The screen does not become the display from specific input mode ¯ (RF, AV, Component, RGB, DVI). (2) Check follow Check the all input mode should become normality display. ¯...
  • Page 20 TROUBLE SHOOTING GUIDE (5) In the case of becomes unusual display from RF, AV, Component 480i mode Is normal the Is normal the Input voltage, IIC Replace IC Communication and HV sync? VPC3230? Is normal the Input voltage, IIC Is normal the S2300? Replace IC Communication and HV sync? Is normal the Input voltage, IIC...
  • Page 21 TROUBLE SHOOTING GUIDE (7) In the case of becomes unusual display from RGB DTV mode Is normal the Input voltage, IIC Is normal the Replace IC Communication and HV sync? CXA2101? Is normal the Is normal the Input voltage, IIC Replace IC Communication and HV sync? M52758?
  • Page 22 TROUBLE SHOOTING GUIDE 6. In case of no sound (1) Symptom LED is green ¯ Screen display but sound is not output ¯ (2) Check follow Is normal the SPK Is the SPK cable Replace SPK cable cable? connected well? Cable inserts well.

  • Page 23: Diagrams

    BLOCK DIAGRAM - 23 -...
  • Page 24 BLOCK DIAGRAM - 24 -...
  • Page 25 NOTES - 25 -...

  • Page 26: Exploded View

    EXPLODED VIEW - 26 -...

  • Page 27: Exploded View Parts List

    PCB ASSEMBLY,DISPLAY XRRT ASSY 42V6_XR(4LAYER) 6871QYH029A PCB ASSEMBLY,DISPLAY YSUS ASSY 42V6 6871QZH033A PCB ASSEMBLY,DISPLAY ZSUS ASSY 42V6 3091V00645C CABINET ASSEMBLY,RU-42PX20 NON NON ZENITH 4980V01067A SUPPORTER ASSY,AL FILTER TOP RZ-42PZ10 4980V01067D SUPPORTER ASSY,AL FILTER TOP *P42W46XH 4980V01068A SUPPORTER ASSY,AL FILTER BOTTOM RZ-42PX10...

  • Page 28: Replacement Parts List

    REPLACEMENT PARTS LIST For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film RUN DATE : 2004.4.8 in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible...
  • Page 29 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q1201 0TR387500AA CHIP 2SC3875S(ALY) KEC Q802 0TR387500AA CHIP 2SC3875S(ALY) KEC CHIP 2SC3875S(ALY) KEC Q1202 0TR387500AA DIODE 0TR387500AA CHIP 2SC3875S(ALY) KEC Q207 Q208 0TR387500AA CHIP 2SC3875S(ALY) KEC D100 0DD226239AA CHIP KDS226 SOT 23 Q209...
  • Page 30 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION D501 0DD226239AA CHIP KDS226 SOT 23 C1058 0CE107SF6DC 100UF MVG 16V M CHIP KDS226 SOT 23 470UF STD 35V 20% D502 0DD226239AA C1059 0CE477DJ618 0DL200000CA LED,SAM5670(DL 2LRG) BK Y GREEN 0CE227VF6DC 220UF MV 16V 20% LD001...
  • Page 31 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C1256 0CE227VF6DC 220UF MV 16V 20% C301 0CE476SF6DC 47UF MVG 16V M 220UF MV 16V 20% 47UF MVG 16V M C1257 0CE227VF6DC C303 0CE476SF6DC 0CE227VF6DC 220UF MV 16V 20% 0CE476SF6DC 47UF MVG 16V M C1259...
  • Page 32 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C757 0CE226SF6DC 22UF MVG 16V 20% L804 6140VB0022A COIL,CHOKE CPS 0810 GET 22UH 22UF MVG 16V 20% COIL,CHOKE CPS 0810 GET 22UH C762 0CE226SF6DC L805 6140VB0022A 0CE226SF6DC 22UF MVG 16V 20% 6140VB0022A COIL,CHOKE CPS 0810 GET 22UH...
  • Page 33 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION AR703 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% L103 6210VC0006A FILTER,EMC FBMH3216 HM501NT 22 OHM 1 / 16 W 1608 5% FILTER,EMC FBMH3216 HM501NT AR707 0RRZVTA001D L104 6210VC0006A...
  • Page 34 6200JB8010L FILTER,EMC MLB 201209 1000L N2 ACCESSORIES FILTER,EMC MLB 201209 1000L N2 L216 6200JB8010L L217 6200JB8010L FILTER,EMC MLB 201209 1000L N2 3828VA0470E MANUAL,OWNERS RU 42PX20 ZENITH L300 6210VC0006A FILTER,EMC FBMH3216 HM501NT 6710V00126Z REMOTE CONTROLLER,RF043A L301 6210VC0006A FILTER,EMC FBMH3216 HM501NT 6410VUH005A...
  • Page 40 MAIN (TOP)
  • Page 41 PRINTED CIRCUIT BOARD MAIN (TOP) MAIN (BOTTOM ) TUNER(TOP) POWER S/W(TOP) POWER S/W(BOTTOM) TUNER(BOTTOM) SIDE A/V(TOP) SIDE A/V(BOTTOM) CONTROL(TOP) CONTROL(BOTTOM)

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