Sharp SX76NF8 Service Manual
Sharp SX76NF8 Service Manual

Sharp SX76NF8 Service Manual

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In the interests of user-safety (Required by safety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.
Ë Full Auto Channel Preset and Auto Channel Skip
Ë 100 CH Program Memory
Ë CATV (Hyper Band) Ready
<Used Frequency Synthesizer Tuner>
Ë High Contrast Picture
Ë TELETEXT(10 page)
English / German / French / Spanish / Italian
/ Swedish / Dutch / portuguese
Ë ON Timer/OFF Timer
» SPECIFICATIONS ............................................. 2
» IMPORTANT SERVICE NOTES ........................ 2
» ADJUSTMENT PRECAUTIONS ........................ 3
» TROUBLE SHOOTING TABLE ......................... 8
» WAVEFORMS .................................................. 12
» CHASSIS LAYOUT .......................................... 14
» BLOCK DIAGRAM ........................................... 16
Ë CRT UNIT ..................................................... 19
Ë MAIN UNIT ................................................... 20
Ë CONTROL UNIT .......................................... 26
Ë DF UNIT ....................................................... 28
Ë LED UNIT ..................................................... 29
Ë KEY UNIT ..................................................... 29
Ë SUB WOOFER UNIT ................................... 30
The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power
receptacle, when servicing this chassis. To prevent electric shock, do not remove cover. No user - serviceable
parts inside. Refer servicing to qualified service personnel.
SERVICE MANUAL
FEATURE
Ë Blue Back Noise Mute
Ë White Temperature Adjustment
Ë Child Lock
Ë Auto Sound Limiter
Ë Headphone Terminal
Ë Stereo (NICAM / IGR) Decoder
Ë Rotation adjustment (picture tilt adjustment)
Ë Component Input Terminal
CONTENTS
Page
WARNING
SHARP CORPORATION
1
COLOUR TELEVISION
Chassis No. GA-20X
SX76NF8
MODEL
» PRINTED WIRING BOARD ASSEMBLIES ..... 31
» REPLACEMENT PARTS LIST
Ë ELECTRICAL PARTS
MAIN UNIT ................................................... 38
CRT UNIT ..................................................... 43
CONTROL UNIT .......................................... 44
DF UNIT ....................................................... 45
LED UNIT ..................................................... 45
SUB WOOFER UNIT ................................... 45
KEY UNIT ..................................................... 45
Ë MISCELLANEOUS PARTS .......................... 46
Ë SUPPLIED ACCESSORIES ......................... 46
Ë PACKING PARTS ......................................... 46
Ë CABINET PARTS ......................................... 46
Ë CABINET PARTS LOCATION ...................... 46
» PACKING OF THE SET ................................... 47
SX76NF8
S13V5SX76NF8/
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Summary of Contents for Sharp SX76NF8

  • Page 1: Table Of Contents

    SX76NF8 SERVICE MANUAL S13V5SX76NF8/ COLOUR TELEVISION Chassis No. GA-20X SX76NF8 MODEL In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.
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  • Page 12: Waveforms

    SX76NF8 WAVE FORMS...
  • Page 13 SX76NF8...
  • Page 14: Chassis Layout

    SX76NF8 CHASSIS LAYOUT...
  • Page 15 SX76NF8...
  • Page 16: Block Diagram

    SX76NF8 BLOCK DIAGRAM...
  • Page 17 SX76NF8...
  • Page 18: Description Of Schematic Diagram

    SX76NF8 DESCRIPTION OF SCHEMATIC DIAGRAM SAFETY NOTES: NOTES: 1. The unit of resistance “ohm” is omitted. 1. DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE REPLACING PARTS. (K = 1000 ohms, M = Meg ohm). 2. All resistors are 1/16 watt, unless otherwise noted.
  • Page 19: Schematic Diagram

    SX76NF8 SCHEMATIC DIAGRAM CRT UNIT...
  • Page 20: Main Unit

    SX76NF8 MAIN UNIT-1/3...
  • Page 21 SX76NF8...
  • Page 22 SX76NF8 MAIN UNIT-2/3...
  • Page 23 SX76NF8...
  • Page 24 SX76NF8 MAIN UNIT-3/3...
  • Page 25 SX76NF8...
  • Page 26: Control Unit

    SX76NF8 CONTROL UNIT...
  • Page 27 SX76NF8...
  • Page 28: Df Unit

    SX76NF8 DF UNIT...
  • Page 29: Led Unit

    SX76NF8 LED UNIT KEY UNIT...
  • Page 30: Sub Woofer Unit

    SX76NF8 SUB WOOFER UNIT...
  • Page 31: Printed Wiring Board Assemblies

    SX76NF8 PRINTED WIRING BOARD ASSEMBLIES PWB-B: CRT UNIT PWB-D: DF UNIT...
  • Page 32 SX76NF8 PWB-A: MAIN UNIT (COPPER SIDE)
  • Page 33 SX76NF8...
  • Page 34 SX76NF8 PWB-A: MAIN UNIT (Chip Parts Side)
  • Page 35 SX76NF8...
  • Page 36 SX76NF8 PWB-C: CONTROL UNIT...
  • Page 37 SX76NF8 PWB-E: LED UNIT PWB-F: SUB WOOFER UNIT PWB-G: KEY UNIT...
  • Page 38: Replacement Parts List

    SX76NF8 REPLACEMENT PARTS LIST Ref. No. Part No. Description Code Ref. No. Part No. Description Code IC1002 RH-iXA424WJZZ R I.C. PARTS REPLACEMENT IC1003 VHiBR24C64F-1Y R BR24C64F-E2 IC1004 VHiMM1503XN-1Y R MM1503XNRE Replacement parts which have these special safety characteristics are IC1006 VHiBA033LBS-1Y...
  • Page 39 SX76NF8 Ref. No. Part No. Description Code Ref. No. Part No. Description Code D607 RH-DX0487CEZZY R Diode PACKAGED CIRCUITS D608 RH-EX0630GEZZY R Zener Diode 9.01V PR701 RMPTP0102CEZZ R Packaged Circuit D651 RH-EX0718GEZZY R Zener Diode 2.63V X201 RCRSAA029WJZZ R Crystal, 4MHz...
  • Page 40 SX76NF8 Ref. No. Part No. Description Code Ref. No. Part No. Description Code C307 VCKYCY1HB681KY R 680p 50V Ceramic C613 RC-KZ0036CEZZ R 330p 2kV Ceramic C308 VCEA0A1CW106M+ R 10 16V Electrolytic C615 VCKYPA2HB102K+ R 1000p 500V Ceramic C309 VCEA0A1CW106M+ R 10...
  • Page 41 SX76NF8 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R212 VRS-CY1JF221JY R 220 1/16W Metal Oxide C1031 VCKYCY1HB103KY R 0.01 50V Ceramic R213 VRS-CY1JF221JY R 220 1/16W Metal Oxide C1032 VCKYCY1HB102KY R 1000p 50V Ceramic R215...
  • Page 42 SX76NF8 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R517 VRD-RA2BE683JY R 68k 1/8W Carbon R759 VRS-CY1JF102JY R 1k 1/16W Metal Oxide R518 VRN-RA2BK473FY R 47k 1/8W Metal Film R760 VRS-CY1JF473JY R 47k 1/16W Metal Oxide...
  • Page 43 SX76NF8 Ref. No. Part No. Description Code Ref. No. Part No. Description Code P1005 QPLGN0361CEZZ R Plug, 3pin(PB) R1054 VRS-CY1JF122JY R 1.2k 1/16W Metal Oxide P1006 QPLGN0361CEZZ R Plug, 3pin(PC) R1055 VRS-CY1JF271JY R 270 1/16W Metal Oxide P1007 QPLGN0361CEZZ R Plug, 3pin(RB) R1056 VRS-CY1JF222JY R 2.2k 1/16W Metal Oxide...
  • Page 44 SX76NF8 Ref. No. Part No. Description Code Ref. No. Part No. Description Code C1519 VCEA0A2EW106M R 10 250V Electrolytic Q2002 VS2SC3198-Y-1+ R 2SC3198-Y Q2003 VS2SC3198-Y-1+ R 2SC3198-Y RESISTORS Q2004 VS2SC3198-Y-1+ R 2SC3198-Y R856 VRD-RA2BE750JY R 75 1/8W Carbon Q2005 VS2SA1266-Y-1+...
  • Page 45 SX76NF8 Ref. No. Part No. Description Code Ref. No. Part No. Description Code DIODES DUNTKB560WEV0 D3003 VHD1SS119//1EY R 1SS119 PWB-D DF UNIT D3004 VHD1SS119//1EY R 1SS119 COILS TRANSISTORS L3001 VP-CF3R3K0000Y R Peaking 3.3µH Q1650 VS2SC5022//1E R 2SC5022 L3002 VP-CF3R3K0000Y R Peaking 3.3µH...
  • Page 46: Ë Miscellaneous Parts

    MSPRC0005PEFW R Spring for Power Button QCNW-B050WJZZ R Connecting Cord HDECQA068WJSA R R/C Decoration QCNW-B051WJZZ R Connecting Cord HDECQA123WJSA R LED Decoration QCNW-B052WJZZ R Connecting Cord HBDGB3141CESA R Badge SHARP TCAUA0002PEZZ R Caution Card CDORFA016WJSA R Door Ass’y LCHSMA016WJK0 R Chassis Frame 1-10...
  • Page 47: Packing Of The Set

    SX76NF8 PACKING OF THE SET Polystyrene Bag Buffer Material Operation Manual Batteries Polyethylene Mat Infrared Remote Control Unit Buffer Material Packing Case Serial Number Card Number Card Fix the packing case with 22 staples Mark : Not Replacement Item...
  • Page 48 Code Ref. No. Part No. Description Code COPYRIGHT © 2003 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

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