Zenith E44W46LCD Service Manual
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Zenith E44W46LCD Service Manual

Lcd projection tv
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SERVICE MANUAL

Product Type:
Chassis:
Manual Series:
Manual Part #:
Model Line:
Product Year:
Product Specifications ..................................................4
Description of Controls .................................................5
Adjustment Instructions ...............................................12
Diagrams ...................................................................30
Parts List ...................................................................33
Schematics ....................................................................
Printed in Korea
LCD Projection TV
MB-042B
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:
E44W46LCD

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Summary of Contents for Zenith E44W46LCD

  • Page 1: Table Of Contents

    Description of Controls ..........5 Adjustment Instructions ..........12 Diagrams ..............30 Parts List ..............33 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: Product Safety

    When servicing this product, under no circumstances should the commercially available discharging wrist strap device, which should be original design be modified or altered without permission from Zenith removed for potential shock reasons prior to applying power to the unit under Electronics Corporation.
  • Page 3 TABLE OF CONTENTS SPECIFICATIONS..............4 DESCRIPTION OF CONTROLS ...........5 ADJUSTMENT INSTRUCTION...........12 PRINTED CIRCUIT BOARDS ..........18 BLOCK DIAGRAM...............30 EXPLODED VIEW...............32 EXPLODED VIEW PARTS LIST .........33 REPLACEMENT PARTS LIST ..........34 SCHEMATIC DIAGRAM............- 3 -...

  • Page 4: Product Specifications

    SPECIFICATIONS Product Specifications Model Horizontal Size (Inches) 39.2 Height (Inches) 29.2 Depth (Inches) 14.4 Weight (lbs.) 50.7 Power Requirement AC 120V, 60Hz Television System American TV Standard, NTSC, ATSC with STB Television Channels VHF: 2 - 13 UHF: 14 - 69 CATV: 1 - 125 Power Consumption (W) 220W...

  • Page 5: Description Of Controls

    DESCRIPTION OF CONTROLS Function Status Indicators Lamp indicator, operation indicator, and temperature indicator located below the front panel controls, reveal the operating status of the LCD projection TV. Operation Indicator Temperature Indicator Lamp Indicator Power cord is not connected. Power Cord is connected, TV is in standby mode. Operation Indicator Green TV turns on.
  • Page 6 DESCRIPTION OF CONTROLS Rear Connections Panel Connecting cables and external equipment to your TV. Fan Cover Replace or clean the filter to prevent a dust every 1~3 months. When cleaning or replacing the filter, certainly turn the main switch off. The dust filter must be washed in tepid water with netural detergent.
  • Page 7 DESCRIPTION OF CONTROLS Side Connection Panel There are four jacks on the left side on your projection TV that make connecting Audio/Video devices like video games and camcorders very simple. The jacks are like those found on the back jack connection panel.
  • Page 8 DESCRIPTION OF CONTROLS Remote Control Functions in TV Mode MODE Selects the remote operating mode: TV, VCR, Cable, DVD and Satellite. Select other oper- INDICATOR LIGHTS ating modes, for the remote to Show active remote mode control external devices. every time any button is VCR CABLE DVD SAT pressed.
  • Page 9 DESCRIPTION OF CONTROLS Remote Control Functions in TV Mode VCR CABLE DVD SAT MODE LIGHT POWER POWER Turns your TV or any other TV/VIDEO SIDE programmed equipment on or off, depending on mode. COMP1 COMP2 COMPONENT 1, 2 Selects: RGB-DTV and Selects component signal sources, RGB-PC input sources.
  • Page 10 DESCRIPTION OF CONTROLS On-Screen Displays This page describes your on-screen display and information banner options. Channel Label If a channel label has been Main Channel Display set, then it will appear here. Displays current channel number. PIP Display TV 13 This display MONO appears when...
  • Page 11 DESCRIPTION OF CONTROLS Front Panel Controls POWER MENU ENTER POWER MENU ENTER (Same as ENTER button on your remote control) VOLUME UP / DOWN CHANNEL UP / DOWN Operation indicator. See menu pages for instructions on using the Lamp indicator. on-screen menus.

  • Page 12: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object 4. LCD Adjustment This instruction is for the application to the LCD projection 4-1. NRS Adjustment TV(MB-042B Chassis). [ When the LCD panel load data on regular pixel using high speed charge/discharge with sample & holder, the drain width of TFT gradually decreases and the non-resistance increases, and comes out regular noise on screen(shows vertical line by 2.

  • Page 13: Preparation For Adjustment

    ADJUSTMENT INSTRUCTIONS (2) Equipment Composition 5-3. Horizontal Position Adjustment (1) Press ADJ key on the remote control to enter the adjustment Equipment to measure mode. Optics Adjustment Jig (2) Select 2. Position. (3) Select H_Position with channel key in adjust mode. (4) Adjust data with using the Volume key on the remote control Circuit thing in order to be left/right symmetry screen.
  • Page 14 ADJUSTMENT INSTRUCTIONS 7. Adjustment of White Balance and Gamma (6) Output the 240, 240, 240(15th data in max white output signal level) in the VDP Test Pattern, change the 15th RGB Data value to come out white balance x=283, y=297(D9300K) and 7-1.
  • Page 15 ADJUSTMENT INSTRUCTIONS (3) After pressing ADJ key on Remote Control for adjustment, 14. RL2L : Lower 9bit of MID1 brightness correction coefficient in select the adjustment mode 5. Uniformity adj. R MID2. Refer to register value and correct register value if need. --- Change according to RMID2 and RMID1 value.
  • Page 16 ADJUSTMENT INSTRUCTIONS --- Change according to BMIN and BMID2 value. At this time, make sure that deviation is +5~-5% and standard 25. BL2H : Upper 9bit of MID1 brightness correction coefficient in is color coordinate of center. B MID2. (3) Output the VDP TEST PATTERN signal correspond to the --- Change according to BMID2 and BMID1 value.
  • Page 17 ADJUSTMENT INSTRUCTIONS 10. EDID Data Input 10-1. Required Test Equipment (1) Jig for adjusting PC, DDC. (PC serial to D-sub. Connection equipment) (2) S/W for writing DDC (EDID data write & read) (3) D-sub terminal 10-2. Setting of Devices LCD PJTV (Fig.

  • Page 18: Printed Circuit Boards

    PRINTED CIRCUIT BOARD MAIN(TOP) - 18 -...
  • Page 19 PRINTED CIRCUIT BOARD MAIN(BOTTOM) - 19 -...
  • Page 20 PRINTED CIRCUIT BOARD TUNER(TOP) - 20 -...
  • Page 21 PRINTED CIRCUIT BOARD TUNER(BOTTOM) - 21 -...
  • Page 22 PRINTED CIRCUIT BOARD DRIVER(TOP) - 22 -...
  • Page 23 PRINTED CIRCUIT BOARD DRIVER(BOTTOM) - 23 -...
  • Page 24 PRINTED CIRCUIT BOARD DIGITAL(TOP) - 24 -...
  • Page 25 PRINTED CIRCUIT BOARD DIGITAL(BOTTOM) - 25 -...
  • Page 26 PRINTED CIRCUIT BOARD SMPS AC INPUT - 26 -...
  • Page 27 PRINTED CIRCUIT BOARD AUDIO(TOP) AUDIO(BOTTOM) - 27 -...
  • Page 28 PRINTED CIRCUIT BOARD CRM(TOP) CRM(BOTTOM) SIDE A/V - 28 -...
  • Page 29 PRINTED CIRCUIT BOARD CONTROL(TOP) CONTROL(BOTTOM) INTERFACE POWER S/W CASE DET PRE-AMP - 29 -...

  • Page 30: Diagrams

    BLOCK DIAGRAM - 30 -...
  • Page 31 NOTES - 31 -...

  • Page 32: Exploded View

    EXPLODED VIEW - 32 -...

  • Page 33: Parts List

    SUPPORTER,SCREEN AL BAR(R/L) 3351V00020A SCREEN ASSEMBLY,SHIINSUNG LGE WLF DN-44SZ80L 991*564*3.4 . 5020V00903A BUTTON,CONTROL DN-44SZ80L ABS 7KEY XCANVAS 5020V00904C BUTTON,POWER RU-44SZ81L ABS, AF-303S 1KEY ZENITH 3808V00455A BACK COVER,DN-44SZ80L NB-042A 3550V00424A COVER,NON DN-44SZ80L ABS POWER CODE 3550V00423C COVER,LAMP RU-44SZ80L HIPS 40AF NON...

  • Page 34: 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 : 2004.5.11 in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible...
  • Page 35 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q1208 0TR150400BA CHIP 2SA1504S(ASY) KEC 0DD184009AA KDS184S CHIP 85V 300MA Q1209 0TR387500AA CHIP 2SC3875S(ALY) KEC D100 0DRSE00038A SDC15 TVS SOT23 12.8V Q1210 0TR150400BA CHIP 2SA1504S(ASY) KEC D100 0DRDI00148A B140A DIODES R/TP SMA 40V Q1211...
  • Page 36 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION ZD600 0DZ560009CF ZENERS,MTZJ5.6B C1058 0CK103CK56A 0.01UF 1608 50V 10% ZD601 0DZ560009CF ZENERS,MTZJ5.6B C1059 0CK103CK56A 0.01UF 1608 50V 10% ZD839 0DZ300009BB ZENERS,MTZJ30B C1060 0CK103CK56A 0.01UF 1608 50V 10% 0DZ620009BB ZENERS,MTZJ6.2B C1061...
  • Page 37 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C1139 0CE476VH6DC 47UF MV 25V 20% C1191 0CK103CK56A 0.01UF 1608 50V 10% C1140 0CK103CK56A 0.01UF 1608 50V 10% C1192 0CE476VH6DC 47UF MV 25V 20% C1141 0CK103CK56A 0.01UF 1608 50V 10% C1193 0CK103CK56A 0.01UF 1608 50V 10%...
  • Page 38 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C1241 0CC102CK41A 1000PF 1608 50V 5% C215 0CK105DF64A 1UF 2012 16V 20% C1244 0CK105DF64A 1UF 2012 16V 20% C216 0CK224DF56A 220000PF 2012 16V 10% C1244 0CC101CK41A 100PF 1608 50V 5% C217 0CK224DF56A 220000PF 2012 16V 10%...
  • Page 39 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C670 0CE475DK618 4.7UF STD 50V 20% C813 0CK1010K515 100P C671 0CE475DK618 4.7UF STD 50V 20% C814 0CK4710K515 470PF 50V K B TR C673 0CE335DK618 3.3UF STD 50V 20% C815 0CK1010K515 100P...
  • Page 40 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION JA201 6613V00010B JACK ASSY,PMJ016B 3P + SVHS AR1020 0RR0472C62A 47 OHM 1 / 16 W 1608 5.00% P1001 6612BBBHN7A JACK,DIN 743203004 30PIN VERTICAL AR1021 0RR0472C62A 47 OHM 1 / 16 W 1608 5.00% AR1022 0RR0472C62A 47 OHM 1 / 16 W 1608 5.00%...
  • Page 41 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R258 0RD0102F609 10 OHM 1/6 W 5% R867 0RD5100F609 510 OHM 1/6 W 5.00% R261 0RD0102F609 10 OHM 1/6 W 5% R868 0RN1201F409 1.2K OHM 1/6 W 1.00% 0RD4703F609 470K OHM 1/6 W 5.00% R872...
  • Page 42 VA800 164-003K VARISTOR,SVC621D14A 620V 0% FL130 6200J000012 FILTER,EMC NFL21SP207X1C3 ACCESSORIES FL131 6200J000012 FILTER,EMC NFL21SP207X1C3 FL132 6200J000012 FILTER,EMC NFL21SP207X1C3 3828VA0465B MANUAL,OWNERS ZENITH EN FL133 6200J000012 FILTER,EMC NFL21SP207X1C3 “ 3828VA0465E MANUAL,OWNERS *LGECI FL134 6200J000012 FILTER,EMC NFL21SP207X1C3 6710V00102K REMOTE CONTROLLER,NB042B FL135 6200J000012 FILTER,EMC NFL21SP207X1C3...

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