Table of Contents
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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 ........................................................................................ 20
» REPLACEMENT PARTS LIST ............................................................................................................ 23
» 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
MODELS
CONTENTS
ELECTRICAL SPECIFICATIONS
SPEAKER
SIZE ...................................................................... 8 cm (Round)
2
(192sq inch)
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
(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
COLOR TELEVISION
Chassis No. SN-000
20N-S100S
CN20S10
(EIA, Channel Plan U.S.A.)
20N-S100S
CN20S10
S20W920N-S100
Page
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Table of Contents
Related Manuals for Sharp 20N-S100S
Summary of Contents for Sharp 20N-S100S
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Page 1: Table Of Contents
20N-S100S CN20S10 SERVICE MANUAL S20W920N-S100 COLOR TELEVISION Chassis No. SN-000 20N-S100S CN20S10 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
20N-S100S CN20S10 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: 20N-S100S
20N-S100S CN20S10 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 20N-S100S CN20S10 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.
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Page 5: 20N-S100S
20N-S100S CN20S10 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
20N-S100S CN20S10 LOCATION OF USER'S CONTROL Front Panel VIDEO/AUDIO SENSOR AREA FOR TERMINALS POWER REMOTE CONTROL (VIDEO/AUDIO terminals are also provided on the rear.) POWER CHANNEL UP/DOWN – MENU POWER Press → On. ( ) Selects next higher channel. Press again → Off. -
Page 7: Installation And Service Instructions
20N-S100S CN20S10 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: 20N-S100S
20N-S100S CN20S10 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 adjusment is required. -
Page 9: 20N-S100S
R/B ANGLE 00-0F H BLK R 00-0F H BLK L 00-0F *1 Must be "B3" for 20N-S100S, "A3" for CN20S10. Table - A Below are the ranges and initial values for each adjustment and in each categories. DATA SERVICE ADJUSTMENT CONTENTS... - Page 10 20N-S100S CN20S10 FEATURE DATA SERVICE ADJUSTMENT CONTENTS ADJUST ITEM INITIAL VALUE POSITION RANGE MS LEVEL 00-0F MTS-VCO 00-3F FILTER 00-3F LOW SEPARATION 00-3F HIGH SEPARATION 00-3F Note: Refer to the SERVICE ADJUSTMENT for each corresponding values. Table - D Holding down both the Vol-up/Ch-down buttons on the TV set at service mode for more than 2 seconds will automatically write the above initial values into IC2101.
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Page 11: 20N-S100S
20N-S100S CN20S10 Ë SERVICE ADJUSTMENT RF AGC Adjustment White Balance Adjustment. 1. Receive a good local channel. 1. Receive a good local channel. 2. Enter the service mode signal category and select 2. Select the service adjustment "S12" and set the data the service adjustment "S01". -
Page 12: 20N-S100S
20N-S100S CN20S10 Ë MTS ADJUSTMENT Vertical-Size, V-Linearity, V-S Correction Adjustment MTS Level Adjustment 1. Feed the following monaural signal to pin (14) of 1. Receive a good local channel. IC3001. 2. Enter the service mode DEF category and select the Monaural signal : 300Hz, 245mVrms adjustment "D02"... -
Page 13: Chassis Layout
20N-S100S CN20S10 CHASSIS LAYOUT PWB-B PWB-C PWB-A... -
Page 14: Block Diagram
20N-S100S CN20S10 BLOCK DIAGRAM... -
Page 15: Schematic Diagrams
20N-S100S CN20S10 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 20N-S100S CN20S10 SCHEMATIC DIAGRAM: MAIN Unit...
- Page 17 20N-S100S CN20S10 SCHEMATIC DIAGRAM: CRT Unit...
- Page 18 20N-S100S CN20S10 SCHEMATIC DIAGRAM: MTS MODULE Unit...
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Page 19: Printed Wiring Board Assemblies
20N-S100S CN20S10 PRINTED WIRING BOARD ASSEMBLIES PWB-A: MAIN Unit (Wiring Side) - Page 20 20N-S100S CN20S10 PWB-A: MAIN Unit (Chip Parts Side)
- Page 21 20N-S100S CN20S10 PWB-B: CRT Unit (Wiring Side) PWB-B: CRT Unit (Chip Parts Side) PWB-C: MTS MODULE Unit PWB-C: MTS MODULE Unit (Wiring Side) (Chip Parts Side)
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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 X VCO Coil RH-EX0676GEZZ J Zener Diode, 32V L301 VP-XF150K0000 J Peaking 15µH D301 RH-EX0643GEZZ J Zener Diode, 9.1V å L701 RCiLF0069PEZZ R Coil (20N-S100S) D454 RH-EX0103CEZZ J Zener Diode, 5.6V D455 RH-DX0475CEZZ J Diode RCiLF0037PEZZ D456 RH-DX0475CEZZ J Diode D457...
- Page 24 20N-S100S CN20S10 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A:DUNTKA055WEV4 (20N-S100S) C2601 VCEA0A1HW475M J 4.7 PWB-A:DUNTKA055WEV5 (CN20S10) C2602 VCCCCY1HH101J J 100p 50V Ceramic MAIN UNIT (Continued) RESISTORS C509 VCKYPA2HB102K J 1000p 500V Ceramic [M-Ox.··· Metal Oxide, M-Film ··· Metal Film]...
- Page 25 20N-S100S CN20S10 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A:DUNTKA055WEV4 (20N-S100S) R962 VRS-CY1JF101J J 100 1/16W M-Ox. PWB-A:DUNTKA055WEV5 (CN20S10) R2001 VRD-RA2BE102J J 1.0k 1/8W Carbon R2002 VRS-CY1JF103J J 10k 1/16W M-Ox. MAIN UNIT (Continued) R2006 VRS-CY1JF103J J 10k 1/16W M-Ox.
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Page 26: Crt Unit
20N-S100S CN20S10 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A:DUNTKA055WEV4 (20N-S100S) PWB-B : DUNTKA056WEV4 PWB-A:DUNTKA055WEV5 (CN20S10) CRT UNIT MAIN UNIT (Continued) S2504 QSW-K0202PEZZ R CH-Down TRANSISTORS Q852 VS2SC2229O/1E J 2SC2229 (O) QSW-K0079GEZZ Q854 VS2SC2229O/1E J 2SC2229 (O) -
Page 27: Miscellaneous Parts
– Front Cabinet — R3011 VRS-CY1JF102J J 1.0k 1/16W M-Ox. GCOVA0004GJSA X R/C Cover R3012 VRS-CY1JF102J J 1.0k 1/16W M-Ox. HBDGB1001GJSA X Badge, "SHARP" R3373 VRS-CY1JF683J J 68k 1/16W M-Ox. JBTN-0004GJSA X Button R3374 VRS-CY1JF822J J 8.2k 1/16W M-Ox. GCABB0107GJKA X Rear Cabinet R3375 VRS-CY1JF223J J 22k 1/16W M-Ox. -
Page 28: Packing Of The Set
20N-S100S CN20S10 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PACKING OF THE SET Polyethylene Bag Operation Manual Infrared R/C Unit Batteries Wrapping Paper Buffer Material FRONT Packing Case Use tapes to fix the packing case. - Page 29 Code Ref. No. Part No. Description Code COPYRIGHT © 2000 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.