Sharp 32C540 Manuel de service

Naviguer en ligne ou télécharger Manuel de service pour Télévisions à tube cathodique Sharp 32C540. Sharp 32C540 Service manual [en] Manuel d'utilisatio

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SHARP CORPORATION
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
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.
COLOR TELEVISION
Chassis No. GB-3' 1W
Page
» ELECTRICAL SPECIFICATIONS .........................................................................................................1
» IMPORTANT SERVICE SAFETY PRECAUTION .................................................................................2
» LOCATION OF USER'S CONTROL .....................................................................................................4
» INSTALLATION AND SERVICE INSTRUCTIONS................................................................................5
» SERVICE ADJUSTMENT .....................................................................................................................9
» CHASSIS LAYOUT .............................................................................................................................12
» BLOCK DIAGRAM ..............................................................................................................................13
» DESCRIPTION OF SCHEMATIC DIAGRAMS & WAVEFORMS ........................................................14
» SCHEMATIC DIAGRAMS ...................................................................................................................15
» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................22
» PARTS LIST........................................................................................................................................25
» PACKING OF THE SET......................................................................................................................34
CONTENTS
SPEAKER
SIZE ........................................................ 12 x 6 cm oval (2 pcs.)
VOICE COIL IMPEDANCE............................... 8 ohm at 400 Hz
ANTENNA INPUT IMPEDANCE
VHF/UHF .....................................................75 ohm Unbalanced
TUNING RANGES
VHF-Channels ...............................................................2 thru 13
UHF-Channels ............................................................14 thru 69
CATV Channels ...........................................................1 thru 125
(EIA, Channel Plan U.S.A.)
POWER INPUT ..................................................... 120V AC, 60 Hz
POWER RATING..................................................................135W
PICTURE SIZE.......................................3,073cm
2
(476sq inch)
CONVERGENCE ............................................................. Magnetic
SWEEP DEFLECTION .................................................... Magnetic
FOCUS ............................................... Hi-Bi-Potential Electrostatic
INTERMEDIATE FREQUENCIES
Picture IF Carrier Frequency ..................................... 45.75 MHz
Sound IF Carrier Frequency ...................................... 41.25 MHz
Color Sub-Carrier Frequency .................................... 42.17 MHz
(Nominal)
AUDIO POWER
OUTPUT RATING .............. 5.0W + 5.0W (at 10% distortion and
Dual CH Operate)
Specifications are subject to change without
prior notice.
ELECTRICAL SPECIFICATIONS
MODELS
SERVICE MANUAL
32C540
32C540
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Résumé du contenu

Page 1 - SERVICE MANUAL

SHARP CORPORATIONThis document has been published to be used for aftersales service only.The contents are subject to change without notice.In the inte

Page 2

10Sub-Tint Adjustment1. Receive the half color bar signal.• RF INPUT (TU51)2. Get into Y-Mute by R/C, or by setting the "V11" busdata to &qu

Page 3 - (Fire & Shock Hazard)

11ËMTS ADJUSTMENTMTS Level Adjustment1. Set the sound volume above 1.Monoral signal: 400Hz, 100% modulation2. Confirm "EX4" data is "5

Page 4 - Front Panel

1212345678910ABCDEFGHIJCHASSIS LAYOUT32C540

Page 5 - HIGH VOLTAGE CHECK

1312345678910ABCDEFGHIJBLOCK DIAGRAM32C540

Page 6

14DESCRIPTION OF SCHEMATIC DIAGRAMNOTES:1. The unit of resistance "ohm" is omitted.(K=kΩ=1000Ω, M=MΩ)2. All resistors are 1/16 watt, unle

Page 7 - A. VCJ IC ADJUSTMENT

654321ABCDEFGHSCHEMATIC DIAGRAM: CRT Unit32C54015

Page 8 - D. SOUND ADJUSTMENT

87 109654321ABCDEFGH32C54016SCHEMATIC DIAGRAM: MAIN-1 Unit

Page 9 - SERVICE ADJUSTMENT

1716 191815141312111032C54017

Page 10 - EW-Trapezium

87109654321AB CDEFGHSCHEMATIC DIAGRAM: MAIN-2 Unit32C54018

Page 11 - MTS ADJUSTMENT

1716 191815141312111032C54019

Page 12 - CHASSIS LAYOUT

2IMPORTANT SERVICE SAFETY PRECAUTIONËService work should be performed only by qualified service technicians who arethoroughly familiar with all safety

Page 13 - BLOCK DIAGRAM

87109654321AB CDEFGHSCHEMATIC DIAGRAM: 3-LINE Y/C Unit32C54020

Page 14 - WAVEFORMS

1716 191815141312111032C54021

Page 15 - SCHEMATIC DIAGRAM: CRT Unit

654321ABCDEFGH22PWB-A: MAIN Unit (A Side)PRINTED WIRING BOARD ASSEMBLIES32C540

Page 16

654321ABCDEFGH23PWB-A: MAIN Unit (B Side)32C540

Page 17 - 1716 1918151413121110

654321ABCDEFGHPWB-C: 3-LINE Y/C Unit (Wiring Side)PWB-B: CRT Unit (Wiring Side)PWB-C: 3-LINE Y/C Unit (Chip Parts Side)32C54024

Page 18

PRINTED WIRING BOARD ASSEMBLIESPARTS LISTPARTS REPLACEMENTReplacement parts which have these special safety characteristicsidentified in this manual;

Page 19

DIODESRef. No. Part No. « Description CodeD412 RH-EX0614GEZZY X Zener Diode 5.6V ABD413 RH-EX0614GEZZY X Zener Diode 5.6V ABD414 RH-EX0614GEZZY X Zene

Page 20

Ref. No. Part No. « Description CodeC429 VCKYCY1HB103KY X 0.01 50V Ceramic AAC433 VCKYCY1CF104ZY X 0.1 16V Ceramic AAC434 VCKYCY1CF104ZY X 0.1 16V Cer

Page 21

Ref. No. Part No. « Description CodeC928 VCEA0A1HW105M+ X 1 50V EL. ABC930 VCEA0A1HW475M+ X 4.7 50V EL. ABC931 VCKYCY1HB183KY X 0.018 50V Ceramic AAC9

Page 22 - PWB-A: MAIN Unit (A Side)

Ref. No. Part No. « Description CodeR422 VRS-CY1JF000JY X 00 1/16W M-Ox. AAR430 VRS-CY1JF391JY X 390 1/16W M-Ox. AAR431 VRS-CY1JF331JY X 330 1/16W M-O

Page 23 - PWB-A: MAIN Unit (B Side)

3SAFETY NOTICEMany electrical and mechanical parts in televisionreceivers have special safety-related characteristics.These characteristics are often

Page 24 - PWB-B: CRT Unit (Wiring Side)

Ref. No. Part No. « Description CodeR767 VRD-RM2HD151JY X 150 1/2W Carbon AAR768 VRD-RA2BE393JY X 39k 1/8W Carbon AAR775 VRS-CY1JF332JY X 3.3k 1/16W M

Page 25 - PARTS LIST

RESISTORS[M-Ox.··· Metal Oxide, M-Film ··· Metal Film]PWB-A: DUNTKC290WEA2MAIN UNITRef. No. Part No. « Description CodeR2403 VRD-RA2BE101JY X 100 1/8W

Page 26 - PWB-A: DUNTKC290WEA2

Ref. No. Part No. « Description CodeR869 VRD-RA2BE103JY X 10k 1/8W Carbon AAR870 VRD-RA2BE223JY X 22k 1/8W Carbon AAR871 VRD-RA2BE472JY X 4.7k 1/8W Ca

Page 27

Ref. No. Part No. « Description CodeR1436 VRS-CY1JF331JY X 330 1/16W M-Ox. AAR1438 VRS-CY1JF222JY X 2.2k 1/16W M-Ox. AAR1456 VRS-CY1JF564JY X 560k 1/1

Page 28

34PACKING OF THE SET★ Packing Case★ MARK : Not replacement items.FRONT★Buffer Material★ Polyethylene Sheet★ Polyethylene BagOperation ManualInfrared R

Page 29

32C54035

Page 30

COPYRIGHT © 2004 BY SHARP CORPORATIONALL RIGHTS RESERVED.No part of this publication may be reproduced,stored in a retrieval system, or transmitted in

Page 31 - PWB-B: DUNTKA527WEW7

4LOCATION OF USER'S CONTROLNote:The above shaded buttons on the Remote Control glow in the dark. To use the glow-in-the-dark display on theremote

Page 32 - PWB-C DUNTKB573WEV0

5CIRCUIT PROTECTIONThe receiver is protected by a 4.0A fuse (F701),mounted on PWB-A, wired into one side of the ACline input.X-RADIATION PROTECTOR CIR

Page 33 - CABINET PARTS LOCATION

6Figure A.V052CHANNELSERVICE ADJUSTMENT NUMBERDATA NUMBERFor adjustments of this model, the bus data is converted to various analog signals by the D/A

Page 34 - PACKING OF THE SET

7V01 PICTURE 0-15 (00h-0Fh) 8 (08h)V02 TINT 0-127 (00h-7Fh) 66 (42h)V03 COLOR 0-127 (00h-7Fh) 56 (38h)V05 BRIGHT 0-127 (00h-7Fh) 64 (40h)V06 R CUT-OFF

Page 35

8D14 EW CORNER BOTTOM 19-81 (13h-51h) 50 (32h) Offset toward D13. 32D15 NOISE DET LEVEL 0-3 (00h-03h) 0 (00h) 00D18 V CENTERING 0-63 (00-3Fh) 36 (24h)

Page 36 - Production : SEMEX

9SERVICE ADJUSTMENTRF AGC Adjustment1. Receive a good local channel.2. Enter the service mode and select the serviceadjustment "R01".3. Set

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