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Sharp 32R-S480 Service Manual

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Download this manual See also: Operating Manual
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.
» ELECTRICAL SPECIFICATIONS ......................................................................................................... 1
» IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................. 2
» LOCATION OF USER'S CONTROL ..................................................................................................... 6
» INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................ 7
» SERVICE ADJUSTMENT ................................................................................................................... 11
» CHASSIS LAYOUT ............................................................................................................................. 14
» BLOCK DIAGRAM .............................................................................................................................. 15
» SCHEMATIC DIAGRAMS ................................................................................................................... 16
» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 27
» REPLACEMENT PARTS LIST ............................................................................................................ 32
» PACKING OF THE SET ...................................................................................................................... 43
POWER INPUT ..................................................... 120V AC, 60 Hz
POWER RATING .................................................................. 152W
PICTURE SIZE .......................................... 3,073 cm
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
AUDIO POWER
OUTPUT RATING .............. 3.0W + 3.0W (at 10% distortion and

SHARP CORPORATION

SERVICE MANUAL

MODELS
CONTENTS
ELECTRICAL SPECIFICATIONS
SPEAKER
SIZE ........................................................ 12 x 6 cm oval (2 pcs.)
2
(476sq inch)
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
(Nominal)
Dual CH Operate)
Specifications are subject to change without
prior notice.
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
1
COLOR TELEVISION
Chassis No. MS-B
32R-S480
CR32S48
(EIA, Channel Plan U.S.A.)
32R-S480
CR32S48
S81Z832R-S480
Page

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Summary of Contents for Sharp 32R-S480

  • Page 1: Table Of Contents

    32R-S480 CR32S48 SERVICE MANUAL S81Z832R-S480 COLOR TELEVISION Chassis No. MS-B 32R-S480 CR32S48 MODELS 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.

  • Page 2: Important Service Safety Precaution

    32R-S480 CR32S48 IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: WARNING X-RADIATION AND HIGH VOLTAGE LIMITS 1. For continued safety, no modification of any circuit 1.

  • Page 3: Safety Notice

    32R-S480 CR32S48 IMPORTANT SERVICE SAFETY PRECAUTION (Continued) • Connect the resistor connection to all exposed metal BEFORE RETURNING THE RECEIVER parts having a return to the chassis (antenna, metal (Fire & Shock Hazard) cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop...
  • Page 4 32R-S480 CR32S48 PRECAUTIONS A PRENDRE LORS DE LA REPARATION Ë Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants. AVERTISSEMENT LIMITES DES RADIATIONS X ET DE LA HAUTE TENSION 1.
  • Page 5 32R-S480 CR32S48 PRECAUTIONS A PRENDRE LORS DE LA REPARATION (Suite) » Toucher avec la sonde d'essai les pièces métalliques VERIFICATIONS CONTRE L'INCEN-DIE ET exposées qui présentent une voie de retour au LE CHOC ELECTRIQUE châssis (antenne, coffret métallique, tête des vis, Avant de rendre le récepteur à...

  • Page 6: Location Of User's Control

    32R-S480 CR32S48 LOCATION OF USER'S CONTROL Front Panel VIDEO/AUDIO IN 2 TERMINALS POWER Press → On. (INSIDE DOOR) Press again → Off. CHANNEL UP/DOWN ) Selects next higher channel. MENU. ) Selects next lower channel. " Press → Accesses MAIN •...

  • Page 7: Installation And Service Instructions

    32R-S480 CR32S48 INSTALLATION AND SERVICE INSTRUCTIONS Note: (1) When performing any adjustments to resistor controls and transformers use non-metallic screwdrivers or TV alignment tools. (2) Before performing adjustments, the TV set must be on at least 15 minutes. HIGH VOLTAGE CHECK CIRCUIT PROTECTION The receiver is protected by a 4.0A fuse (F701),...
  • Page 8 32R-S480 CR32S48 For adjustments of this model, the bus data is converted to various analog signals by the D/A converter circuit. Note: There are still a few analog adjustments in this series such as focus and master screen voltage. Follow the steps below whenever the service adjustment is required. See "Table-B" to determine, if serv- ice adjustments are required.
  • Page 9 32R-S480 CR32S48 DATA SERVICE ADJUSTMENT ITEM ADJUSTMENT CONTENTS NUMBER INITIAL VALUE RANGE PICTURE 0-15(00h-0Fh) TINT 0-127(00h-7Fh) COLOR 0-127(00h-7Fh) SUB-COLOR 0-31(00h-1Fh) Must be set to "10" BRIGHT 0-127(00h-7Fh) R CUT-OFF 64-255(40h-FFh) G CUT-OFF 64-255(40h-FFh) B CUT-OFF 64-255(40h-FFh) G DRIVE 0-127(00h-7Fh) B DRIVE...
  • Page 10 Must be set to "24" CC-POSITION 0-127(00h-7Fh) 0-255(00h-FFh) Must be set to "7A" A-ATT 0-127 OPTION1 0-255(00h-FFh) Must be set to "B7" (32R-S480), "A7" (CR32S48) OPTION2 0-7(00h-07h) Must be set to "09" INPUT LEVEL 0-15(00h-0Fh) Must be set to "09" MTS VCO 0-63(00h-3Fh)

  • Page 11: Service Adjustment

    32R-S480 CR32S48 SERVICE ADJUSTMENT VCO Adjustment White Balance Adjustment 1. Connect a digital voltmeter between pin (55) of IC201 1. Receive a good local channel. and ground. 2. Enter the service mode and select the service 2. Receive a good local channel.
  • Page 12 4. Adjust "EX2" data value so that text box is positioned 1. Enter the service mode. in the center of the screen. 2. Adjust the following data values as listed below. SERVICE ADJUST DATA(Hex) POSITION ITEM 32R-S480 CR32S48 OPTION1 OPTION2 Figure B.

  • Page 13: Mts Adjustment

    32R-S480 CR32S48 Ë MTS ADJUSTMENT Ë P-IN-P ADJUSTMENT MTS Level Adjustment P-IN-P Y-LEVEL Adjustment 1. Receive the following composite signal. 1. Receive a good local channel. 2. Enter the service mode and select the service Monaural signal: 400Hz, 100% modulation 2.

  • Page 14: Chassis Layout

    32R-S480 CR32S48 CHASSIS LAYOUT...

  • Page 15: Block Diagram

    32R-S480 CR32S48 BLOCK DIAGRAM...

  • Page 16: Schematic Diagrams

    32R-S480 CR32S48 DESCRIPTION OF SCHEMATIC DIAGRAM WAVEFORM MEASUREMENT CONDITIONS: NOTES: 1. Photographs taken on a standard gated color bar 1. The unit of resistance "ohm" is omitted. (K=k Ω =1000 Ω , M=M Ω ) signal, the tint setting adjusted for proper color. The wave shapes at the red, green and blue cathodes of 2.
  • Page 17 32R-S480 CR32S48 SCHEMATIC DIAGRAM: MTS MODULE Unit...
  • Page 18 32R-S480 CR32S48 SCHEMATIC DIAGRAM: MAIN-1 Unit...
  • Page 19 32R-S480 CR32S48 SCHEMATIC DIAGRAM: MAIN-2 Unit...
  • Page 20 32R-S480 CR32S48 SCHEMATIC DIAGRAM: AV Unit...
  • Page 21 32R-S480 CR32S48 SCHEMATIC DIAGRAM: P-IN-P Unit...
  • Page 22 32R-S480 CR32S48 SCHEMATIC DIAGRAM: CRT Unit...

  • Page 23: Printed Wiring Board Assemblies

    32R-S480 CR32S48 PRINTED WIRING BOARD ASSEMBLIES PWB-B: CRT Unit (Wiring Side) PWB-S: MTS MODULE Unit PWB-S: MTS MODULE Unit (Wiring Side) (Chip Parts Side)
  • Page 24 32R-S480 CR32S48 PWB-A: MAIN Unit (Wiring Side)
  • Page 25 32R-S480 CR32S48 PWB-A: MAIN Unit (Chip Parts Side)
  • Page 26 32R-S480 CR32S48 PWB-C: AV Unit (Wiring Side) PWB-C: AV Unit (Chip Parts Side)
  • Page 27 32R-S480 CR32S48 PWB-R: P-IN-P Unit (Wiring Side) PWB-R: P-IN-P Unit (Chip Parts Side)

  • Page 28: Replacement Parts List

    2. NO. DE REF 3. NO. DE PIECE 4. DESCRIPTION in USA: Contact your nearest SHARP Parts Distributor to order. For in CANADA: Contact SHARP Electronics of Canada Limited location of SHARP Parts Distributor, Please call Toll-Free; 1- Phone (416) 890-2100...
  • Page 29 32R-S480 CR32S48 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEB3(32R-S480) PWB-A: DUNTKA526WEB8(CR32S48) VHD1SS82///-1 D652 RH-EX0641GEZZ J Zener Diode, 12V MAIN UNIT (Continued) ' å D653 VHD1SS119//-1 J Diode ' å Q471 VS2SC1623L61E J 2SC1623L6...
  • Page 30 32R-S480 CR32S48 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEB3(32R-S480) C632 VCEA0A1VW107M J 100 PWB-A: DUNTKA526WEB8(CR32S48) C633 VCKYPA1HB102K J 1000p 50V Ceramic C644 VCFPVC2DB684J X 0.68 200V M-Poly. MAIN UNIT (Continued) C647 VCKYPA2HB102K J 1000p 500V Ceramic C202 VCKYCY1HB103K J 0.01...
  • Page 31 32R-S480 CR32S48 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEB3(32R-S480) RJ54 VRS-CY1JF000J 1/16W M-Ox. PWB-A: DUNTKA526WEB8(CR32S48) RJ55 VRS-CY1JF000J 1/16W M-Ox. MAIN UNIT (Continued) RJ56 VRS-CY1JF000J 1/16W M-Ox. RJ57 VRS-CY1JF000J 1/16W M-Ox. C811 VCKYCY1HB103K J 0.01...
  • Page 32 32R-S480 CR32S48 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEB3(32R-S480) R679 VRD-RM2HD103J J 10k 1/2W Carbon PWB-A: DUNTKA526WEB8(CR32S48) R686 VRS-CY1JF473J J 47k 1/16W M-Ox. R688 VRS-CY1JF223J J 22k 1/16W M-Ox. MAIN UNIT (Continued) R689 VRS-CY1JF102J J 1.0k 1/16W M-Ox.
  • Page 33 32R-S480 CR32S48 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEB3(32R-S480) R2403 VRD-RA2BE101J J 100 1/8W Carbon PWB-A: DUNTKA526WEB8(CR32S48) R2404 VRS-CY1JF101J J 100 1/16W M-Ox. R2501 VRS-CY1JF183J J 18k 1/16W M-Ox. MAIN UNIT (Continued) R2502 VRS-CY1JF183J J 18k 1/16W M-Ox.

  • Page 34: Crt Unit

    32R-S480 CR32S48 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTKA526WEB3(32R-S480) C1518 VCCSPA2HL560K J 56p 500V Ceramic PWB-A: DUNTKA526WEB8(CR32S48) C1519 VCEA0A2CW106M J 10 160V EL. MAIN UNIT (Continued) RESISTORS P2401 QPLGN0561CEZZ J Plug, 5-pin [M-Ox.··· Metal Oxide]...
  • Page 35 32R-S480 CR32S48 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-C: DUNTKA602WEA0 C1455 VCKYCY1HF103Z J 0.01 Ceramic C1456 VCKYCY1CF104Z J 0.1 Ceramic AV UNIT C1457 VCEA0A1CW106M J 10 C1458 VCEA0A1CW106M J 10 INTEGRATED CIRCUITS C1460 VCKYCY1HF103Z J 0.01...
  • Page 36 32R-S480 CR32S48 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-C: DUNTKA602WEA0 PWB-R: DUNTKA533WEA0 AV UNIT (Continued) P-IN-P UNIT INTEGRATED CIRCUIT R1462 VRS-CY1JF102J J 1.0k 1/16W M-Ox. R1466 VRS-CY1JF123J J 12k 1/16W M-Ox. IC1801 VHiM65667FP-2 J M65667FP R1467 VRS-CY1JF822J J 8.2k 1/16W M-Ox.
  • Page 37 32R-S480 CR32S48 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-R: DUNTKA533WEA0 MISCELLANEOUS PARTS P1701 QPLGZ0810CEZZ J Plug, 8-pin P-IN-P UNIT (Continued) P1702 QPLGZ0610CEZZ J Plug, 6-pin P1703 QPLGZ0810CEZZ J Plug, 8-pin C1863 VCCCCY1HH101J J 100p 50V...

  • Page 38: Miscellaneous Parts

    (CR32S48) LHLDW1002PEZZ R Wire Holder, x3 Not Available – Front Cabinet — LHLDW1002PEZZ J Wire Holder HBDGB1009MESB X Badge, "SHARP" LHLDW1009PEZZ R Wire Holder GCOVA0116GJKA X Door Cover LHLDW1033PEZZ R Wire Holder, x2 GDORF0104GJKA X Door LHLDW1037PEZZ J Wire Holder...

  • Page 39: Packing Of The Set

    32R-S480 CR32S48 PACKING OF THE SET Polyethylene Bag Operation Manual Infrared R/C Unit Batteries Polyethylene Sheet Buffer Material FRONT Packing Case Use tape to fix the top side of packing case. REAR Use 12 staples to fix the bottom side of packing case.
  • Page 40 32R-S480 CR32S48 COPYRIGHT © 2001 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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