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Zenith M52W56LCD Service Manual

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Download this manual See also: Operating Manual
SERVICE MANUAL
Product Type:
Chassis:
Manual Series:
Manual Part #:
Model Line:
Product Year:
Product Specifications ..................................................4
Description of Controls .................................................5
Adjustment Instructions ...............................................12
Diagrams ...................................................................29
Parts List ...................................................................31
Schematics ....................................................................
Printed in Korea
LCD Projection TV
MB-042B
2004
CONTENTS
Published Nov. 2004
by Technical Publications
LG Electronics USA, Inc.
201 James Record Road,
Huntsville, Alabama 35824-1513
Copyright © 2004 by LG Electronics U.S.A., Inc.
http//www.zenithservice.com
Model Series:
M52W56LCD

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Summary of Contents for Zenith M52W56LCD

  • Page 1: Table Of Contents

    SERVICE MANUAL Model Series: M52W56LCD Product Type: LCD Projection TV Chassis: MB-042B Manual Series: Manual Part #: Model Line: Product Year: 2004 CONTENTS Product Specifications ..........4 Description of Controls ..........5 Adjustment Instructions ..........12 Diagrams ..............29 Parts List ..............31 Schematics ..............
  • Page 2 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...............29 EXPLODED VIEW............30,32 EXPLODED VIEW PARTS LIST ........31,33 REPLACEMENT PARTS LIST ..........34 SCHEMATIC DIAGRAM............- 3 -...

  • Page 4: Product Specifications

    SPECIFICATIONS Product Specifications M52W56LCD Horizontal Size (Inches) 47.5 Height (Inches) 33.8 Depth (Inches) 15.7 Weight (lbs.) 66.1 Power Requirement AC 120V, 60Hz Television System American TV Standard, NTSC, ATSC with STB Television Channels VHF: 2 - 13 UHF: 14 - 69...

  • 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 power 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. If TV is moved from cold to normal room tem- Lamp indicator.

  • 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: Screen Position 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 get left/right screen symmetry.
  • 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 Service Remote Control, select the 14. RL2L : Lower 9bit of MID1 brightness correction coefficient in 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 CRM(TOP) CRM(BOTTOM) SIDE A/V - 27 -...
  • Page 28 PRINTED CIRCUIT BOARD CONTROL(TOP) CONTROL(BOTTOM) INTERFACE CASE DET PRE-AMP - 28 -...

  • Page 29: Diagrams

    BLOCK DIAGRAM - 29 -...

  • Page 30: Exploded View

    EXPLODED VIEW - 30 -...

  • Page 31: Parts List

    SPEAKER,TWEETER D016D01K1450 ESTEC 8HMOHM 15/25W 85DB 50 NON 6410VUH004A POWER CORD,UL/CSA3000MM 3P HUG BLACK VOLEX CSA 3000MM 500MH 7A 3090V00575A CABINET,RN-52SZ80L LCD PJT FRONT 4811V00123C BRACKET ASSEMBLY,GRILLE RU-52SZ81L NON ZENITH BEST BUY 3520V00436A INDICATOR,LED RU-44SZ80L PMMA 3 PHY NON 4980V00C04E SUPPORTER,SCREEN AL RN-52SZ80 4980V00C04F...
  • Page 32 EXPLODED VIEW - 32 -...
  • Page 33 SPEAKER,TWEETER D016D01K1450 8HMOHM 15/25W 85DB 50 NON 6410VUH004A POWER CORD,UL/CSA3000MM 3P 3000MM HUG BLACK 500MH 7A 3090V00575A CABINET,RN-52SZ80L LCD PJT FRONT 4811V00123C BRACKET ASSEMBLY,GRILLE RU-52SZ81L NON ZENITH BEST BUY 3520V00436A INDICATOR,LED RU-44SZ80L PMMA 3 PHY NON 4980V00C04E SUPPORTER,SCREEN AL RN-52SZ80 4980V00C04F...

  • 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 : 2004.12.13 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 Q1206 0TR387500AA CHIP 2SC3875S(ALY) KEC D102 0DR050008AA SD05.TC SOD323 5V 5A 15A Q1208 0TR150400BA CHIP 2SA1504S(ASY) KEC D103 0DR050008AA SD05.TC SOD323 5V 5A 15A Q1209 0TR387500AA CHIP 2SC3875S(ALY) KEC D104 0DR050008AA SD05.TC SOD323 5V 5A 15A...
  • Page 36 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION 0DZ620009BB ZENERS,MTZJ6.2B C1062 0CK103CK56A 0.01UF 1608 50V 10% C1063 0CK103CK56A 0.01UF 1608 50V 10% CAPACITOR C1064 0CK103CK56A 0.01UF 1608 50V 10% 0CE476DF618 47UF STD 16V M C1065 0CE226SF6DC 22UF MVG 16V 20% 0CE226DF618...
  • Page 37 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C1125 0CK103CK56A 0.01UF 1608 50V 10% C1172 0CK103CK56A 0.01UF 1608 50V 10% C1126 0CE226SF6DC 22UF MVG 16V 20% C1173 0CE226SH6DC 22UF MVG 25V 20% “ 0CE476SF6DC 47UF MVG 16V M “...
  • Page 38 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C1214 0CE227VF6DC 220UF MV 16V 20% C1325 0CK103CK56A 0.01UF 1608 50V 10% C1217 0CE107SF6DC 100UF MVG 16V M C1326 0CE226SF6DC 22UF MVG 16V 20% C1220 0CK103CK56A 0.01UF 1608 50V 10% C1327 0CK103CK56A 0.01UF 1608 50V 10%...
  • Page 39 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C224 0CE476SF6DC 47UF MVG 16V M C713 0CE227DD618 220UF STD 10V M C225 0CE475DK618 4.7UF STD 50V 20% C714 0CE476SF6DC 47UF MVG 16V M C226 0CE227DF618 220UF STD 16V M C715 0CE227DD618 220UF STD 10V M...
  • Page 40 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C834 0CK1040K945 0.1UF 50V Z F TR L891 150-C02F COIL,CHOKE 82UH C835 0CE226SF6DC 22UF MVG 16V 20% T801 6170VMCA06N TRANSFORMER,SMPS[COIL] EER4220 360UH C836 181-011B 0.001UF D 1.6KV J T830 6170VMCA13T TRANSFORMER,SMPS[COIL] EER4215 660UH...
  • Page 41 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION AR516 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% R816 0RN5103G409 510K OHM 1/4 W 1% AR518 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% R817 0RN5103G409 510K OHM 1/4 W 1%...
  • Page 42 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION 140-313B SWITCH,TACT 2LEAD 160G(TA) T1008 0LCCE00017A FILTER,EMC HD-1M2012-301J 100MHZ 140-313B SWITCH,TACT 2LEAD 160G(TA) “ 6200J000015 FILTER,EMC MLB-201209-0300A-N1 300 OHM 140-313B SWITCH,TACT 2LEAD 160G(TA) T1009 0LCCE00017A FILTER,EMC HD-1M2012-301J 100MHZ 140-313B SWITCH,TACT 2LEAD 160G(TA) “...

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