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Zenith C34W37 Series Service Manual

Consumer flat screen tv
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SERVICE MANUAL

Product Type:
Chassis:
Manual Series:
Manual Part #:
Model Line:
Product Year:
Description of Controls .................................................5
Specifications .............................................................10
Adjustment Instructions ...............................................15
Diagrams ...................................................................21
Parts List ...................................................................31
Schematics ....................................................................
Printed in Korea
Consumer Flat Screen TV
AC-02SA
2003
CONTENTS
Published June 2003
by Technical Publications
Zenith Electronics Corporation
201 James Record Road
Huntsville, Alabama 35824-1513
Copyright © 2003 by Zenith Electronics Corporation
Model Series:
C34W37

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Summary of Contents for Zenith C34W37 Series

  • Page 1: Table Of Contents

    Description of Controls ..........5 Specifications .............10 Adjustment Instructions ..........15 Diagrams ..............21 Parts List ..............31 Schematics ..............Published June 2003 by Technical Publications Zenith Electronics Corporation 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 CRT at a safe operating Anode voltage and provide proper shutdown thresholds. If replacement of any of these components are deemed necessary, it is important to use original type Zenith replacement components. After replacement is made, confirm proper Anode voltage using the following procedure.
  • Page 4 TABLE OF CONTENTS DESCRIPTION OF CONTROLS ...........5 SPECIFICATIONS...............10 PROGRAMMING CODES...........11 ADJUSTMENT INSTRUCTIONS ........15 PURITY & CONVERGENCE ADJUSTMENT......18 PRINTED CIRCUIT BOARDS ..........21 BLOCK DIAGRAM...............29 EXPLODED VIEW...............30 EXPLODED VIEW PARTS LIST .........31 REPLACEMENT PARTS LIST ..........32 SCHEMATIC DIAGRAM............- 4 -...

  • Page 5: Description Of Controls

    DESCRIPTION OF CONTROLS Front Panel Controls tv/video menu power Power Standby indicator (Illuminates brightly when the TV is in standby mode. Dims when the TV is switched on.) Remote control sensor TV/VIDEO Menu VOL LEFT / RIGHT Volume( ) button increases the sound level and vol- ume( ) button decreases the sound level.
  • Page 6 DESCRIPTION OF CONTROLS Rear Connections Panel Connecting external equipment to your TV. RF Connectors: Antenna 1 Input, Antenna 2 Input Used to connect cable or antenna Digital Audio signals to the televi- CALIBRATION Output Optical sion, either directly Connects to exter- ANTENNA 1 ANTENNA 2 or through your...
  • Page 7 DESCRIPTION OF CONTROLS Front Connections Panel (Front Video) There are four jacks on the lower-right front side of your 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 INDICATOR mode: TV, VCR, Cable, DVD or LIGHTS Satellite. Select other operating modes, for the remote to oper- Show active remote mode ate external devices. every time any button is pressed.
  • Page 9 DESCRIPTION OF CONTROLS Remote Control Functions in TV Mode vcr cable dvd sat mode light power RATIO POWER Changes the aspect ratio. Turns your TV or any other tv/video front comp/dvi programmed equipment on or off, depending on mode. ratio signal freeze FREEZE...

  • Page 10: Specifications

    SPECIFICATIONS Product Specifications Models C34W37 Horizontal Size (inches) 41.7 Height (inches) 24.7 Thickness (inches) 23.2 Weight (lbs) 168.2 Power requirement 120V, 60Hz Television system American TV Standard, NTSC, ATSC with STB Television Channel VHF: 2 - 13 UHF: 14 - 69 CATV: 1 - 125 Power consumption (W) 220W...

  • Page 11: Programming Codes

    FUTURETECH 028 040 042 SCOTT 004 028 043 YUPITERU 004 006 008 109 116 124 048 116 143 ZENITH 001 072 073 009 034 056 SEARS 004 007 015 095 103 157 073 074 091 004 006 062 028 030 057...
  • Page 12 041 067 068 SAMSUNG 032 040 102 DAEWOO 005 007 010 MARANTZ 012 031 033 104 105 107 ZENITH 001 034 048 064 065 108 067 069 109 112 113 056 058 072 110 111 112 MARTA 115 120 122...
  • Page 13 VIEWSTAR AMPLICA GENERAL INSTRUMENT 003 004 016 PHILIPS WINEGARD 128 146 BIRDVIEW 051 126 129 029 031 059 PICO ZENITH 001 081 082 083 084 091 PRESIDENT 019 102 CAPETRONICS HITACHI 139 140 PRIMESTAR 030 110 111 CHANNEL MASTER013 014 015...
  • Page 14 012 015 018 086 087 088 REMBRANT ANTRONIK M-NET ARCHER 005 007 014 MACOM SAMSUNG 030 068 ZENITH 001 060 093 MAGNAVOX 010 012 064 SCIENTIFIC ATLANTA 003 011 041 CABLE STAR 042 043 045 CENTURION MEMOREX CENTURY MOVIE TIME...

  • Page 15: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object 4-2. Adjustment (1) Select EZ Adjust 3. CUT-OFF, pressing ADJ key on the These instructions are applied to the AC-02SA chassis. SVC Remote control. When it enters to adjustment mode, the pattern(14CH.) being selected, it becomes with Normal image 16:9 and the 2.

  • Page 16: White Balance Adjustment

    ADJUSTMENT INSTRUCTIONS 5-4. Raster H-center(H.CENTER) Adjustment 7. White Balance Adjustment Select 77. H Postion in the adjustment mode and adjust until Do screen adjustment first. left and right screen are symmetrically equal. Color Temp must be adjusted from Medium Mode. (The image condition must be adjusted from Normal condition) 5-5.
  • Page 17 ADJUSTMENT INSTRUCTIONS (1) Select EZ Adjust 5. Sub Bright pressing ADJ key on the SVC Remote control. (2) Adjust to the point where “2” is not visible. 8-2. Sub COLOR, TINT Adjustment WHITE YELLOW CYAN GREENMAGENTA BLUE (1) Select EZ Adjust 6. Sub Tint, Color pressing ADJ key on the SVC Remote control.

  • Page 18: Purity & Convergence Adjustment

    PURITY & CONVERGENCE ADJUSTMENT Caution: 5. Reconnect the internal degaussing coil. Convergence and Purity have been factory aligned. Do not 6. Position the beam bender locking rings at the 9 o'clock attempt to tamper with these alignments. position and the other three pairs of tabs (2,4 and 6 pole However, the effects of adjacent receiver components, or magnets) at the 12 o'clock position.
  • Page 19 PURITY & CONVERGENCE ADJUSTMENT 1.ADJUST YOKE Z-AXIS FIRST 2 .ADJUST BEAM BENDER 2 POLE TO GET EQUAL BLUE MAGNET TO GET FOUR EQUAL COLOR CIRCLES COLOR CIRCLES MAGNETS 8. Referring to above, perform the following two steps: 5. Restore the screen by removing the horizontal line. a.
  • Page 20 PURITY & CONVERGENCE ADJUSTMENT ROTATION DIRECTION RING MOVEMENT OF RED OF BOTH TABS PAIRS AND BLUE BEAMS OPPOSITE POLE SAME OPPOSITE POLE SAME UP/DOWN ROCKING OF THE YOKE CAUSES LEFT/RIGHT ROCKING OF THE YOKE UP/DOWN ROCKING OF THE YOKE LEET/RIGHT ROCKING OF THE YOKE OPPOSITE ROTATION OF RED AND BLUE CAUSES OPPOSITE SIZE CHANGE OF CAUSES OPPOSITE ROTATION OF RED...

  • Page 21: Diagrams

    PRINTED CIRCUIT BOARD MAIN(BOTTOM) - 21 -...
  • Page 22 PRINTED CIRCUIT BOARD MAIN(TOP) - 22 -...
  • Page 23 PRINTED CIRCUIT BOARD MAIN2 - 23 -...
  • Page 24 PRINTED CIRCUIT BOARD DIGITAL(TOP) - 24 -...
  • Page 25 PRINTED CIRCUIT BOARD DIGITAL(BOTTOM) - 25 -...
  • Page 26 PRINTED CIRCUIT BOARD - 26 -...
  • Page 27 PRINTED CIRCUIT BOARD LINE FILTER - 27 -...
  • Page 28 PRINTED CIRCUIT BOARD CONTROL FRONT A/V - 28 -...

  • Page 29: Block Diagram

    BLOCK DIAGRAM - 29 -...

  • Page 30: Exploded View

    EXPLODED VIEW - 30 -...

  • Page 31: Parts List

    EXPLODED VIEW PARTS LIST Part No. Description 6335V36002B CPT ASSEMBLY,W86LQQ350X94 0.35G 0G TOSHIBA V2 VERSION 120-C77M SPEAKER,FULLRANGE C122P02K1459 ESTEC 8 OHM 10/15W 4810V00088A BRACKET,SPEAKER CE-29K30 NON PP NONE 6140VC2006B COIL,DEGAUSSING 70TURN 10.7OHM ASSY 6140VC2007B AND 150-D07D 170-797U CPT EARTH,34 48T 0LUG RING 174-225Y POWER CORD ASSEMBLY,UL/CSA 3000MM HOUSING L4=400MM BLACK 3091V00A96B...

  • Page 32: 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 : 2003.6.14 in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible...
  • Page 33 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q1017 0TR150400BA CHIP 2SA1504S(ASY) KEC Q1905 0TR387500AA CHIP 2SC3875S(ALY) KEC CHIP 2SC3875S(ALY) KEC CHIP 2SC3875S(ALY) KEC Q102 0TR387500AA Q1906 0TR387500AA Q104 0TR387500AA CHIP 2SC3875S(ALY) KEC Q1907 0TR387500AA CHIP 2SC3875S(ALY) KEC Q105 0TR150400BA...
  • Page 34 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q601 0TR387500AA CHIP 2SC3875S(ALY) KEC D1604 0DS113379BA 1SS133 T72 DO34 90V BSS83 NON NCHANNEL S/W TR 1SS133 T72 DO34 90V Q601 0TR830009BA D1605 0DS113379BA Q602 0TR387500AA CHIP 2SC3875S(ALY) KEC D1606 0DS113379BA 1SS133 T72 DO34 90V...
  • Page 35 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION ZD100 0DRSE00038A SDC15 TVS DIODE SOT23 12.8V C1201 0CE105DK618 1UF STD 50V M SDC15 TVS DIODE SOT23 12.8V 1UF STD 50V M ZD101 0DRSE00038A C1202 0CE105DK618 ZD11 0DZ620009AK ZENERS,GDZJ6.2B C1203...
  • Page 36 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C1414 0CE108DH618 1000UF STD 25V M C1528 0CE105DK618 1UF STD 50V M 1000P 50V 10UF STD 16V M C1415 0CK1020K515 C1602 0CE106DF618 C1416 0CE227BK618 220UF KME 50V M C1604 0CE226DF618 22UF STD 16V M...
  • Page 37 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C1955 0CK104DK56A 0.1UF 2012 50V 10% C394 0CE106SF6DC 10UF MVG 16V 20% 0.1UF 2012 50V 10% 22UF MVG 16V M C1956 0CK104DK56A C397 0CE226SF6DC 0CE107DD618 100UF STD 10V M C398 0CE106SF6DC 10UF MVG 16V 20%...
  • Page 38 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C536 0CE226DF618 22UF STD 16V M C822 0CK4710W515 470PF 500V K B TR 100UF STD 25V M 0CE107DH618 C823 0CE228DK650 2200UF STD 50V M 0CE107BK618 100UF KME 50V M C824 0CE227BJ618 220U KME 35V M...
  • Page 39 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R1977 0CK104DK56A 0.1UF 2012 50V 10% P905 387-A10G CONNECTOR ASSEMBLY,10P 2.5MM JACK RESISTOR AR100 0RRZVTA001C 4.7K OHM 1 / 16 W 1608 5% IC501 6612BBBHN4A JACK,DIN TOTX179 AR101 0RRZVTA001C 4.7K OHM 1 / 16 W 1608 5%...
  • Page 40 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R1418 0RF0561K607 5.6 OHM 2 W 5.00% R1554 0RS6801K607 6.8K OHM 2 W 5.00% 240K OHM 1 W 5.00% 6.8K OHM 2 W 5.00% R1419 0RS2403J607 R1555 0RS6801K607 R1420 0RS2403J607...
  • Page 41 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R837 0RS2202K607 22K OHM 2 W 5.00% 140-313B SWITCH,TACT 2LEAD 160G(TA) 240K OHM 1/6 W 5.00% SWITCH,TACT 2LEAD 160G(TA) R838 0RD2403F609 140-313B R840 0RD1002F609 10K OHM 1/6 W 5% 140-313B SWITCH,TACT 2LEAD 160G(TA) R850...
  • Page 42 THERMISTOR,PTC J503P51D6R5S140 +30%/20% TH802 163-051C THERMISTOR,PTC J503P51D6R5S140 +30%/20% TU101 6700NFNS04B TUNER,TDVBH701P TU102 6700NFNS06B TUNER,TAFDH001P LG NTSC FS SUB VA801 164-003K VARISTOR,SVC621D14A 620V 0% X601 6204B47985K OSCILLATOR,BMS873R 25MHZ +/ 50 PPM ACCESSORIES 3828VA0395A MANUAL,OWNERS DU36FZ20 ZENITH 6710V00102B REMOTE CONTROLLER,AC02SA - 42 -...

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