Sharp 25L-M100 Service Manual
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Sharp 25L-M100 Service Manual

Sharp 25L-M100 Service Manual

Color television
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25L-M100/180
CL25M10
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 ............................................................................ 10
» CHASSIS LAYOUT ........................................................................................................................... 16
» BLOCK DIAGRAM ............................................................................................................................ 18
» SCHEMATIC DIAGRAMS ................................................................................................................. 20
» PRINTED WIRING BOARD ASSEMBLIES ....................................................................................... 38
» REPLACEMENT PARTS LIST .......................................................................................................... 41
» PACKING OF THE SET ..................................................................................................................... 49
POWER INPUT ................................................... 120 V AC 60 Hz
POWER RATING
25L-M100/180, CL25M10 ................................................. 105 W
25L-S100/180, CL25S18 .................................................. 110 W
PICTURE SIZE ........................................... 2,032cm
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
25L-M100/180, CL25M10 ............... 1.3W (at 10% distortion and
25L-S100/180, CL25S18 .... 1.3W +1.3W (at 10% distortion and

SHARP CORPORATION

SERVICE MANUAL

25L-S100/180
CL25S18
MODELS
CONTENTS

ELECTRICAL SPECIFICATIONS

2
(315sq inch)
(Nominal)
Dual CH Operate)
Dual CH Operate)
COLOR TELEVISION
Chassis No. SN-91
25L-M100/180, 25L-S100/180
CL25M10, CL25S18
SPEAKER
SIZE ...................................................................... 8 cm (Round)
VOICE COIL IMPEDANCE ............................. 32 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
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
25L-M100/180/S100/180
CL25M10,CL25S18
S49F325L-M100
Page
(EIA, Channel Plan U.S.A.)

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Summary of Contents for Sharp 25L-M100

  • Page 1: Table Of Contents

    Sound IF Carrier Frequency ........41.25 MHz Color Sub-Carrier Frequency ........42.17 MHz (Nominal) AUDIO POWER 25L-M100/180, CL25M10 ....1.3W (at 10% distortion and Dual CH Operate) Specifications are subject to change without 25L-S100/180, CL25S18 ..1.3W +1.3W (at 10% distortion and prior notice.

  • Page 2: Important Service Safety Precaution

    25L-M100/180/S100/180 CL25M10,CL25S18 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

    25L-M100/180/S100/180 CL25M10,CL25S18 IMPORTANT SERVICE SAFETY PRECAUTION (Continued) BEFORE RETURNING THE RECEIVER Connect the resistor connection to all exposed metal parts having a return to the chassis (antenna, metal (Fire & Shock Hazard) cabinet, screw heads, knobs and control shafts, escutcheon and etc.) and measure the AC voltage Before returning the receiver to the user, perform drop across the resistor.
  • Page 4 25L-M100/180/S100/180 CL25M10,CL25S18 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 25L-M100/180/S100/180 CL25M10,CL25S18 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

    25L-M100/180/S100/180 CL25M10,CL25S18 LOCATION OF USER'S CONTROL (25L-M100, CL25M10)
  • Page 7 25L-M100/180/S100/180 CL25M10,CL25S18 LOCATION OF USER'S CONTROL (Continued) (25L-M180)
  • Page 8 25L-M100/180/S100/180 CL25M10,CL25S18 LOCATION OF USER'S CONTROL (Continued) (25L-S100)
  • Page 9 25L-M100/180/S100/180 CL25M10,CL25S18 LOCATION OF USER'S CONTROL (Continued) (25L-S180, CL25S18)

  • Page 10: Installation And Service Instructions

    25L-M100/180/S100/180 CL25M10,CL25S18 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...
  • Page 11 The service adjustment number will vary in increments of one, from "S01" to "OP"(25L-M100/180, CL25M10), "S01" to "M05"(25L-S100/180, CL25S18). Select the item you wish to adjust.
  • Page 12 Must be set to "03" OSD SETUP 00-03 Must be set to "00" TUNER SETUP 00,01 Must be set to "00" OPTION (Set to each mode) 00-FF "0A"=25L-M180, "02"=25L-M100, CL25M10 "26"=25L-S100, "3E"=25L-S180, CL25S18 MTS LEVEL 00-0F STEREO-VCO 00-3F Only for Models FILTER 00-3F...

  • Page 13: Service Adjustment

    25L-M100/180/S100/180 CL25M10,CL25S18 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 14 25L-M100/180/S100/180 CL25M10,CL25S18 Sub-Brightness Adjustment 3.58MHz Trap Adjustment 1. Receive a good local channel. 2. Make sure the customer brightness control is set to 1. Receive a good local channel. center position. 2. Enter the service mode and select the service 3.

  • Page 15: Mts Adjustment

    25L-M100/180/S100/180 CL25M10,CL25S18 MTS ADJUSTMENT (Only for 25L-S100/180, CL25S18) 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 16: Chassis Layout

    25L-M100/180/S100/180 CL25M10,CL25S18 MODELS 25L-M100/180, CL25M10 CHASSIS LAYOUT PWB-B PWB-H PWB-A...
  • Page 17 25L-M100/180/S100/180 CL25M10,CL25S18 MODELS 25L-S100/180, CL25S18 CHASSIS LAYOUT PWB-B PWB-H PWB-A...

  • Page 18: Block Diagram

    25L-M100/180/S100/180 CL25M10,CL25S18 MODELS 25L-M100/180, CL25M10 BLOCK DIAGRAM...
  • Page 19 25L-M100/180/S100/180 CL25M10,CL25S18 MODELS 25L-S100/180, CL25S18 BLOCK DIAGRAM...

  • Page 20: Schematic Diagrams

    25L-M100/180/S100/180 CL25M10,CL25S18 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. signal, the tint setting adjusted for proper color. The (K=k =1000 , M=M ) wave shapes at the red, green and blue cathodes of 2.
  • Page 21 25L-M100/180/S100/180 CL25M10,CL25S18 SCHEMATIC DIAGRAM: CRT and FRONT AV Unit Ë 25L-M100/180, CL25M10 Ë 25L-S100/180, CL25S10...
  • Page 22 25L-M100/180/S100/180 CL25M10,CL25S18 MODELS 25L-M100, CL25M10 SCHEMATIC DIAGRAM: MAIN-1 Unit...
  • Page 23 25L-M100/180/S100/180 CL25M10,CL25S18...
  • Page 24 25L-M100/180/S100/180 CL25M10,CL25S18 MODELS 25L-M100, CL25M10 SCHEMATIC DIAGRAM: MAIN-2 Unit...
  • Page 25 25L-M100/180/S100/180 CL25M10,CL25S18...
  • Page 26 25L-M100/180/S100/180 CL25M10,CL25S18 MODELS 25L-M180 SCHEMATIC DIAGRAM: MAIN-1 Unit...
  • Page 27 25L-M100/180/S100/180 CL25M10,CL25S18...
  • Page 28 25L-M100/180/S100/180 CL25M10,CL25S18 MODELS 25L-M180 SCHEMATIC DIAGRAM: MAIN-2 Unit...
  • Page 29 25L-M100/180/S100/180 CL25M10,CL25S18...
  • Page 30 25L-M100/180/S100/180 CL25M10,CL25S18 MODELS 25L-S100 SCHEMATIC DIAGRAM: MAIN-1 Unit...
  • Page 31 25L-M100/180/S100/180 CL25M10,CL25S18...
  • Page 32 25L-M100/180/S100/180 CL25M10,CL25S18 MODELS 25L-S100 SCHEMATIC DIAGRAM: MAIN-2 Unit...
  • Page 33 25L-M100/180/S100/180 CL25M10,CL25S18...
  • Page 34 25L-M100/180/S100/180 CL25M10,CL25S18 MODELS 25L-S180, CL25S18 SCHEMATIC DIAGRAM: MAIN-1 Unit...
  • Page 35 25L-M100/180/S100/180 CL25M10,CL25S18...
  • Page 36 25L-M100/180/S100/180 CL25M10,CL25S18 MODELS 25L-S180, CL25S18 SCHEMATIC DIAGRAM: MAIN-2 Unit...
  • Page 37 25L-M100/180/S100/180 CL25M10,CL25S18...

  • Page 38: Printed Wiring Board Assemblies

    25L-M100/180/S100/180 CL25M10,CL25S18 PRINTED WIRING BOARD ASSEMBLIES PWB-A: MAIN Unit (Wiring Side)
  • Page 39 25L-M100/180/S100/180 CL25M10,CL25S18 PWB-A: MAIN Unit (Chip Parts Side)
  • Page 40 25L-M100/180/S100/180 CL25M10,CL25S18 PWB-B: CRT Unit (Wiring Side) PWB-H: FRONT AV Unit (Wiring Side)

  • Page 41: 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 ç...
  • Page 42 25L-M100/180/S100/180 CL25M10,CL25S18 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTK9806WEK0 (25L-M100/CL25M10) FILTERS PWB-A: DUNTK9806WEK1 (25L-M180) CF301 RFiLC0029TAZZ J Ceramic Filter PWB-A: DUNTK9806WEK2 (25L-S100) CF401 RFiLC0013CEZZ J Ceramic Filter PWB-A: DUNTK9806WEK3 (25L-S180/CL25S18) CF631 RFiLA0034CEZZ J Ceramic Filter...
  • Page 43 25L-M100/180/S100/180 CL25M10,CL25S18 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTK9806WEK0 (25L-M100/CL25M10) C772 VCEA0A1VW477M J 470 PWB-A: DUNTK9806WEK1 (25L-M180) C801 RC-QZA223TAYK J 0.022 50V Mylar PWB-A: DUNTK9806WEK2 (25L-S100) C802 VCEA0A1HW474M J 0.47 PWB-A: DUNTK9806WEK3 (25L-S180/CL25S18)
  • Page 44 25L-M100/180/S100/180 CL25M10,CL25S18 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTK9806WEK0 (25L-M100/CL25M10) RJ60 VRD-MN2BE000J 1/8W Carbon PWB-A: DUNTK9806WEK1 (25L-M180) RJ61 VRS-CY1JF000J 1/16W M-Ox. PWB-A: DUNTK9806WEK2 (25L-S100) RJ63 VRD-MN2BE000J 1/8W Carbon PWB-A: DUNTK9806WEK3 (25L-S180/CL25S18) RJ64 VRD-MN2BE000J...
  • Page 45 25L-M100/180/S100/180 CL25M10,CL25S18 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTK9806WEK0 (25L-M100/CL25M10) R906 VRS-CY1JF392J J 3.9k 1/16W M-Ox. PWB-A: DUNTK9806WEK1 (25L-M180) (25L-S180, CL25S18) PWB-A: DUNTK9806WEK2 (25L-S100) R907 VRS-CY1JF182J J 1.8k 1/16W M-Ox. PWB-A: DUNTK9806WEK3 (25L-S180/CL25S18)
  • Page 46 25L-M100/180/S100/180 CL25M10,CL25S18 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTK9806WEK0 (25L-M100/CL25M10) F701 QFS-B4023CEZZ J Fuse 4A 125V å PWB-A: DUNTK9806WEK1 (25L-M180) PWB-A: DUNTK9806WEK2 (25L-S100) QFS-B4021GEZZ PWB-A: DUNTK9806WEK3 (25L-S180/CL25S18) FB601 RBLN-0047CEZZ J Ferrite Bead FB702 RBLN-0036CEZZ...

  • Page 47: Crt Unit

    25L-M100/180/S100/180 CL25M10,CL25S18 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-H: DUNTK9310WEK0 (25L-M100/180, CL25M10) PWB: DUNTK9510WEK1 PWB-H: DUNTK9310WEK1 (25L-S100/180, CL25S18) CRT UNIT FRONT AV UNIT TRANSISTORS MISCELLANEOUS PARTS Q851 VS2SC3198-Y-1 J 2SC3198 J1001 QJAKE0053GEZZ J Jack, Video in...

  • Page 48: 25L-M100/180, Cl25M10

    CCABA1297MES1 M Front Cabinet Ass'y QCNW-0133MEZZ M Connecting Cord (25L-M180) (25L-M100/180, CL25M10) Not Available – Front Cabinet — QCNW-0135MEZZ M Connecting Cord HBDGB1008MESA M Badge, "SHARP" (25L-M100/180, CL25M10) JBTN-1086MEKA M Button, Power, Vol-up/down AD QCNW-0130MEZZ M Connecting Cord JBTN-1087MEKA M Button, CH-up/down (25L-S100/180, CL25S18)

  • Page 49: Packing Of The Set

    25L-M100/180/S100/180 CL25M10,CL25S18 Ref. No. Part No. Description PACKING OF THE SET Code Ref. No. Part No. Description Code Polyethylene Bag Operation Manual Registration Card (U.S.A.) Infrared R/C Unit Batteries Polyethylene Foam Sheet Buffer Material FRONT Packing Case Use tapes to fix the packing case.
  • Page 50 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:

25l-m18025l-s100Cl25s1825l-s180Cl25m10

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