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Sharp CL20S10 Service Manual
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Sharp CL20S10 Service Manual

Sharp CL20S10 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.
» ELECTRICAL SPECIFICATIONS ......................................................................................................... 1
» IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................ 2
» LOCATION OF USER'S CONTROL ..................................................................................................... 6
» INSTALLATION AND SERVICE INSTRUCTIONS ............................................................................... 7
» CHASSIS LAYOUT ............................................................................................................................ 13
» BLOCK DIAGRAM ............................................................................................................................. 14
» SCHEMATIC DIAGRAMS .................................................................................................................. 15
» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 19
» REPLACEMENT PARTS LIST ........................................................................................................... 22
» PACKING OF THE SET ..................................................................................................................... 29
POWER INPUT ................................................... 120 V AC 60 Hz
POWER RATING .................................................................... 88 W
PICTURE SIZE ............................................ 1,240cm
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 .................... 1.3W + 1.3W (at 10% distortion)

SHARP CORPORATION

SERVICE MANUAL

COLOR TELEVISION
Chassis No. SN-80
20L-S100S
CL20S10, 21ML50
MODELS
CONTENTS

ELECTRICAL SPECIFICATIONS

SPEAKER
SIZE ...................................................................... 8 cm (Round)
2
(192sq 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)
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
20L-S100S
CL20S10, 21ML50
S59G320L-S100
Page
(EIA, Channel Plan U.S.A.)

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Summary of Contents for Sharp CL20S10

  • Page 1: Table Of Contents

    20L-S100S CL20S10, 21ML50 SERVICE MANUAL S59G320L-S100 COLOR TELEVISION Chassis No. SN-80 20L-S100S CL20S10, 21ML50 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

    20L-S100S CL20S10, 21ML50 IMPORTANT SERVICE SAFETY PRECAUTION 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

    20L-S100S CL20S10, 21ML50 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 20L-S100S CL20S10, 21ML50 PRECAUTIONS A PRENDRE LORS DE LA REPARATION 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 20L-S100S CL20S10, 21ML50 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

    20L-S100S CL20S10, 21ML50 LOCATION OF USER'S CONTROL...

  • Page 7: Installation And Service Instructions

    20L-S100S CL20S10, 21ML50 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 20L-S100S CL20S10, 21ML50 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.
  • Page 9 20L-S100S CL20S10, 21ML50 DATA SERVICE ADJUSTMENT ITEM ADJUSTMENT CONTENTS NUMBER RANGE INITIAL VALUE PICTURE 00-7F TINT 00-7F COLOR 00-7F BRIGHTNESS 00-7F SHARPNESS 00-3F Must be set to "24" VERTICAL PHASE 00-07 Must be set to "00" ~ "03" HORIZONTAL PHASE...

  • Page 10: Service Adjustment

    20L-S100S CL20S10, 21ML50 SERVICE ADJUSTMENT VCO Adjustment White Balance Adjustment 1. Connect a digital voltmeter between pin (44) 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 11 20L-S100S CL20S10, 21ML50 Sub-Brightness Adjustment 3.58MHz Trap Adjustment 1. Receive a good local channel. 1. Receive a good local channel. 2. Make sure the customer brightness control is set to 2. Enter the service mode and select the service center position.

  • Page 12: Mts Adjustment

    20L-S100S CL20S10, 21ML50 MTS ADJUSTMENT MTS Level Adjustment 1. Feed the following monaural signal to pin (14) of IC3001. Monaural signal : 300Hz, 245mVrms 2. Connect the rms voltmeter to pin (39) of IC3001. 3. Enter the service mode and select the service adjustment "M01".

  • Page 13: Chassis Layout

    20L-S100S CL20S10, 21ML50 CHASSIS LAYOUT PWB-B PWB-E PWB-A...

  • Page 14: Block Diagram

    20L-S100S CL20S10, 21ML50 BLOCK DIAGRAM...

  • Page 15: Schematic Diagrams

    20L-S100S CL20S10, 21ML50 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 16 20L-S100S CL20S10, 21ML50 SCHEMATIC DIAGRAM: MAIN Unit (DUNTK9532WEV7) 20L-S100S (DUNTK9532WEV9) CL20S10 (DUNTK9532WEW1) 21ML50 (20L-S100S, CL20S10) (NVV) (`1) (`1) (`2) 1000 (21ML50) (`2) (`1) VTST5UF78S(`1) 115B8025AM(`2) (`1) (`1) (`2) (`2) (`1) 2W(VV)(`2) F0090CE (CL20S10) (20L-S100S, 21ML50)
  • Page 17 20L-S100S CL20S10, 21ML50 S10)
  • Page 18 20L-S100S CL20S10, 21ML50 SCHEMATIC DIAGRAM: CRT and MTS MODULE Unit MTS MODULE 2SD601AR...

  • Page 19: Printed Wiring Board Assemblies

    20L-S100S CL20S10, 21ML50 PRINTED WIRING BOARD ASSEMBLIES PWB-B: CRT Unit (Wiring Side) PWB-B: CRT Unit (Chip Parts Side) PWB-E: MTS MODULE Unit PWB-E: MTS MODULE Unit (Chip Parts Side) (Wiring Side)
  • Page 20 20L-S100S CL20S10, 21ML50 PWB-A: MAIN Unit (Wiring Side)
  • Page 21 20L-S100S CL20S10, 21ML50 PWB-A: MAIN Unit (Chip Parts Side)

  • Page 22: Replacement Parts List

    4. DESCRIPTION in USA: Contact your nearest SHARP Parts Distributor to order. in CANADA: Contact SHARP Electronics of Conada Limited For location of SHARP Parts Distributor, Please call Toll- Phone (416) 890-2100 Free; 1-800-BE-SHARP MARK: SPARE PARTS-DELIVERY SECTION MARQUE: SECTION LIVRAISON DES PIECES DE RECHANGE...
  • Page 23 J Diode çå D652 VHD1SS119//-1 J Diode çå RCiLF0087CEZZ D653 RH-EX0091CEZZ J Zener Diode, 22V çå å L701 RCiLF0090CEZZ J Coil (CL20S10) L2040 RCiLB0159CEZZ J Oscillation Coil RH-EX0660GEZZ TRANSFORMERS RH-EX1311CEZZ T601 RTRNZ0168CEZZ J H-Driver å D661 RH-DX0444CEZZ J Diode å...
  • Page 24 20L-S100S CL20S10, 21ML50 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A:DUNTK9532WEV7 (20L-S100S) PWB-A:DUNTK9532WEV9 (CL20S10) RC-FZ019SCEZZ PWB-A:DUNTK9532WEW1(21ML50) RC-FZ027CUMZZ MAIN UNIT (Continued) C702 VCKYPB2HE103P J 0.01 500V Ceramic C703 VCKYPB2HE103P J 0.01 500V Ceramic C205 VCEA0A1HW474M J 0.47 C704 VCKYPB2HE103P J 0.01...
  • Page 25 20L-S100S CL20S10, 21ML50 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A:DUNTK9532WEV7 (20L-S100S) R452 VRD-RA2BE152J J 1.5k 1/8W Carbon PWB-A:DUNTK9532WEV9 (CL20S10) R454 VRD-RA2BE274J J 270k 1/8W Carbon PWB-A:DUNTK9532WEW1(21ML50) R455 VRD-RA2BE392J J 3.9k 1/8W Carbon R456 VRS-CY1JF223J J 22k 1/16W M-Ox.
  • Page 26 20L-S100S CL20S10, 21ML50 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A:DUNTK9532WEV7 (20L-S100S) MISCELLANEOUS PARTS PWB-A:DUNTK9532WEV9 (CL20S10) å RY701 RRLYU0036CEZZ J Relay PWB-A:DUNTK9532WEW1(21ML50) MAIN UNIT (Continued) RRLYU0038CEZZ R902 VRS-CY1JF750J J 75 1/16W M-Ox. RRLYU0077CEZZ R905 VRS-CY1JF102J J 1.0k 1/16W M-Ox.

  • Page 27: Crt Unit

    20L-S100S CL20S10, 21ML50 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-B : DUNTK9533WEV7 PWB-E : DUNTK9531WEV7 CRT UNIT MTS MODULE UNIT TRANSISTORS INTEGRATED CIRCUITS Q852 VS2SC2229O/1E J 2SC2229 IC352 VHiTDA7233/-1 J TDA7233 Q854 VS2SC2229O/1E J 2SC2229...

  • Page 28: Packing Parts

    PWB-E : DUNTK9531WEV7 PACKING PARTS MTS MODULE UNIT (Continued) (NOT REPLACEMENT ITEM) SPAKC0005GJZZ – Packing Case (20L-S100S) — MISCELLANOUS PARTS SPAKC0106GJZZ – Packing Case (CL20S10) — P351 QPLGN0561CEZZ J Plug, 5-pin (BBN) SPAKC0105GJZZ – Packing Case (21ML50) — P3001 QPLGN0241FJ00...

  • Page 29: Packing Of The Set

    20L-S100S CL20S10, 21ML50 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PACKING OF THE SET Polyethylene Bag Operation Manual Guarantee Card (20L-S100S, CL20S10) Infrared R/C Unit Batteries Wrapping Paper Buffer Material FRONT Packing Case Use tapes to fix the packing case.
  • Page 30 Code Ref. No. Part No. Description Code COPYRIGHT © 1999 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.

This manual is also suitable for:

21ml5020l-s100s

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