Service manual

ManualsBrandsSharp ManualsTV27R-S400

27R-S200, 27R-S400

27R-S450, CR27S20

CSR20027

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.

S61W327R-S200

COLOR TELEVISION

Chassis No. MS-B

Page

» ELECTRICAL SPECIFICATIONS .........................................................................................................1

» IMPORTANT SERVICE SAFETY PRECAUTION .................................................................................2

» LOCATION OF USER'S CONTROL .....................................................................................................6

» INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................8

» SERVICE ADJUSTMENT ...................................................................................................................12

» CHASSIS LAYOUT .............................................................................................................................15

» BLOCK DIAGRAM ..............................................................................................................................17

» SCHEMATIC DIAGRAMS ...................................................................................................................20

» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................40

» REPLACEMENT PARTS LIST ............................................................................................................45

» PACKING OF THE SET ......................................................................................................................59

CONTENTS

SPEAKER

SIZE ....................................................Round type 8 cm (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 .................................................................. 126W

PICTURE SIZE ........................................ 2,193.5cm

(339sq 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 .............. 3.0W + 3.0W (at 10% distortion and

Dual CH Operate)

Specifications are subject to change without

prior notice.

ELECTRICAL SPECIFICATIONS

27R-S200, 27R-S400

27R-S450, CR27S20

CSR20027

MODELS

SERVICE MANUAL

Summary of content (52 pages)

PAGE 1
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 SERVICE MANUAL S61W327R-S200 COLOR TELEVISION Chassis No. MS-B MODELS 27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 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. CONTENTS Page » ELECTRICAL SPECIFICATIONS ........................................................................................................
PAGE 2
7R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 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 should be attempted. 2. Disconnect AC power before servicing. 3. Semiconductor heat sinks are potential shock hazards when the chassis is operating. 4.
PAGE 3
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 IMPORTANT SERVICE SAFETY PRECAUTION (Continued) • Connect the resistor connection to all exposed metal parts having a return to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor. AII checks must be repeated with the AC line cord plug connection reversed. (If necessary, a nonpolarized adapter plug must be used only for the purpose of completing these check.
PAGE 4
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 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. N'entreprendre aucune modification de tout circuit. C'est dangereux. 2. Débrancher le récepteur avant toute réparation. 3.
PAGE 5
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 PRECAUTIONS A PRENDRE LORS DE LA REPARATION (Suite) • Toucher avec la sonde d'essai les pièces métalliques exposées qui présentent une voie de retour au châssis (antenne, coffret métallique, tête des vis, arbres de commande et des boutons, écusson, etc.) et mesurer la chute de tension CA en-travers de la résistance. Toutes les vérifications doivent être refaites après avoir inversé la fiche du cordon d'alimentation.
PAGE 6
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 LOCATION OF USER'S CONTROL (27R-S200, CSR20027, CR27S20) Front Panel POWER. Press → On. Press again → Off. CHANNEL UP/DOWN (') Selects next higher channel. ( ) Selects next lower channel. • Press both at the same time to access the MAIN MENU screen. ' MENU. Press → Accesses MAIN MENU. Press again → Exits MAIN MENU. VIDEO/AUDIO IN 2 TERMINALS (VIDEO/AUDIO terminals are also provided on the rear.
PAGE 7
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 LOCATION OF USER'S CONTROL (Continued) (27R-S400, 27R-S450) Front Panel VIDEO/AUDIO IN 2 TERMINALS (VIDEO/AUDIO terminals are also provided on the rear.) POWER Press → On. Press again → Off. ' MENU. Press → Accesses MAIN MENU. Press again → Exits MAIN MENU. CHANNEL UP/DOWN (') Selects next higher channel. ( ) Selects next lower channel. • Press both at the same time to access the MAIN MENU screen.
PAGE 8
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 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. CIRCUIT PROTECTION HIGH VOLTAGE CHECK The receiver is protected by a 4.0A fuse (F701), mounted on PWB-A, wired into one side of the AC line input.
PAGE 9
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 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 service adjustments are required. 1. Service mode To enter the service mode and exit service mode.
PAGE 10
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 SERVICE NUMBER DATA ADJUSTMENT ITEM ADJUSTMENT CONTENTS INITIAL VALUE RANGE V01 V02 V03 V04 V05 V06 V07 V08 V09 V10 V11 V12 V13 V14 V15 V16 V17 V18 V19 V20 V21 V22 V23 V24 V25 V26 V27 V28 V29 V30 V31 V32 V33 V34 V35 V36 V37 V38 V39 V40 V41 V42 V43 V44 V45 V46 V47 V48 V49 V50 V51 V52 V53 PICTURE TINT COLOR SUB-COLOR BRIGHT R CUT-OFF G CUT-OFF B CUT-OFF G DRIVE B DRIVE SHARP N PHASE DC RESTORATION BLACK STRETCH ABL START POINT ABL GAIN γ POINT Y-MUTE/V-STOP
PAGE 11
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 SERVICE NUMBER DATA ADJUSTMENT ITEM ADJUSTMENT CONTENTS INITIAL VALUE RANGE EX1 EX2 EX3 EX4 FAO VOLUME CC-POSITION INT A-ATT 24 21 7A 5A 0-50(00h-32h) 0-127(00h-7Fh) 0-255(00h-FFh) 0-127 OP1 OPTION1 BA 0-255(00h-FFh) OP2 OPTION2 01 0-7(00h-07h) M01 M02 M03 M04 M05 INPUT LEVEL MTS VCO FILTER WIDEBAND SPECTRAL 09 24 1F 18 10 0-15(00h-0Fh) 0-63(00h-3Fh) 0-63(00h-3Fh) 0-63(00h-3Fh) 0-63(00h-3Fh) P01 P02 P03 P04 P05 P06 P07 P08 CONTRAST-PIP TIN
PAGE 12
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 SERVICE ADJUSTMENT VCO Adjustment White Balance Adjustment 1. Connect a digital voltmeter between pin (55) of IC201 and ground. 2. Receive a good local channel. 3. Enter the service mode and select the service adjustment "R02". 4. Adjust T201 so that digital voltmeter reads 2.5±1.0VDC. 5. Adjustment is completed, remove the voltmeter, return to "normal" mode. 1. Receive a good local channel. 2.
PAGE 13
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Vertical-Size and Linearity Adjustments Other Adjustments 1. Receive a good local channel. 2. Enter the service mode and select the service adjustment "D03" for V-size. 3. Adjust the "D03" bus data to get the proper V-size. 4. For V-linearity adjustment, select data bus "D05" and adjust to get the proper vertical linearity. Note: Aging for 10 min before adjustment. After the adjustment of V-center and V-size, readjustment for this V-line. 1.
PAGE 14
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ë MTS ADJUSTMENT Ë P-IN-P ADJUSTMENT MTS Level Adjustment (Only for 27R-S400, 27R-S450) P-IN-P Y-LEVEL Adjustment 1. Receive a good local channel. 2. Enter the service mode and select the service adjustment "P01". 3. Adjust "P01" data value to obtain normal contrast level. 1. Receive the following composite signal. Monaural signal: 400Hz, 100% modulation 2. Connect the rms voltmeter to pin (39) of IC3001. 3.
PAGE 15
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 MODELS 27R-S200, CSR20027, CR27S20 CHASSIS LAYOUT H G F E D C B A 1 2 3 4 15 5 6
PAGE 16
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 MODELS 27R-S400, 27R-S450 CHASSIS LAYOUT H G F E D C B A 1 2 3 4 16 5 6
PAGE 17
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 MODELS 27R-S200, CSR20027, CR27S20 BLOCK DIAGRAM H G F E D C B A 1 2 3 4 17 5 6
PAGE 18
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 MODEL 27R-S400 BLOCK DIAGRAM H G F E D C B A 1 2 3 4 18 5 6
PAGE 19
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 MODEL 27R-S450 BLOCK DIAGRAM H G F E D C B A 1 2 3 4 19 5 6
PAGE 20
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 DESCRIPTION OF SCHEMATIC DIAGRAM WAVEFORM MEASUREMENT CONDITIONS: 1. Photographs taken on a standard gated color bar signal, the tint setting adjusted for proper color. The wave shapes at the red, green and blue cathodes of the picture tube depend on the tint, color level and picture control. 2. indicates waveform check points (See chart, waveforms are measured from point indicated to chassis ground.) NOTES: 1. The unit of resistance "ohm" is omitted.
PAGE 21
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 SCHEMATIC DIAGRAM: MTS MODULE Unit H G F E D C B A 1 2 3 4 21 5 6
PAGE 22
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 MODELS 27R-S200, CSR20027, CR27S20 SCHEMATIC DIAGRAM: MAIN-1 Unit H (DUNTKA526WEA0)…27R-S200, CR27S20 (DUNTKA526WEB4)…CSR20027 G F E D C B A 1 2 3 22 4 5 6 7 8 9 10 11 23 12
PAGE 23
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 MODELS 27R-S200, CSR20027, CR27S20 SCHEMATIC DIAGRAM: MAIN-2 Unit H (DUNTKA526WEA0)…27R-S200, CR27S20 (DUNTKA526WEB4)…CSR20027 G0074CEZZ…27R-S200, CR27S20 G0101GJZZ…CSR20027 G F E D C B A 1 2 3 24 4 5 6 7 8 9 10 11 25 12
PAGE 24
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 MODEL 27R-S400 SCHEMATIC DIAGRAM: MAIN-1 Unit H G F E D C B A 1 2 3 26 4 5 6 7 8 9 10 11 27 12
PAGE 25
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 MODEL 27R-S400 SCHEMATIC DIAGRAM: MAIN-2 Unit H G F E D C B A 1 2 3 28 4 5 6 7 8 9 10 11 29 12
PAGE 26
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 MODEL 27R-S450 SCHEMATIC DIAGRAM: MAIN-1 Unit H G F E D C B A 1 2 3 30 4 5 6 7 8 9 10 11 31 12
PAGE 27
R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 MODEL 27R-S450 SCHEMATIC DIAGRAM: MAIN-2 Unit H G F E D C B A 1 2 3 32 4 5 6 7 8 9 10 11 33 12
PAGE 28
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 SCHEMATIC DIAGRAM: AV Unit H G F E D C B A 1 2 3 34 4 5 6 7 8 9 10 11 35 12
PAGE 29
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 MODELS 27R-S400, 27R-S450 SCHEMATIC DIAGRAM: P-IN-P Unit H G F E D C B A 1 2 3 36 4 5 6 7 8 9 10 11 37 12
PAGE 30
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 H MODELS 27R-S200, 27R-S450, CSR20027, CR27S20 SCHEMATIC DIAGRAM: CRT Unit G F E D C B A 1 2 3 4 38 5 6
PAGE 31
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 MODEL 27R-S400 SCHEMATIC DIAGRAM: CRT Unit H G F E D C B A 1 2 3 4 39 5 6
PAGE 32
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 PRINTED WIRING BOARD ASSEMBLIES H G F E PWB-B: CRT Unit (Wiring Side) D C B PWB-S: MTS MODULE Unit (Wiring Side) PWB-S: MTS MODULE Unit (Chip Parts Side) A 1 2 3 4 40 5 6
PAGE 33
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 H G F E PWB-R: P-IN-P Unit (Wiring Side) (Only for 27R-S400, 27R-S450) D C B A PWB-R: P-IN-P Unit (Chip Parts Side) (Only for 27R-S400, 27R-S450) 1 2 3 4 41 5 6
PAGE 34
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 H G F E D C B A PWB-A: MAIN Unit (Wiring Side) 1 2 3 4 42 5 6
PAGE 35
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 H G F E D C B A PWB-A: MAIN Unit (Chip Parts Side) 1 2 3 4 43 5 6
PAGE 36
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 H G F PWB-C: AV Unit (Wiring Side) E D C B A PWB-C: AV Unit (Chip Parts Side) 1 2 3 4 44 5 6
PAGE 37
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. PARTS LIST Part No. ★ Description LISTE DES PIECES Code Ref. No. ★ Part No. Description Code PARTS REPLACEMENT CHANGE DES PIECES Replacement parts which have these special safety characteristics identified in this manual; electrical components having such features are identified by å and shaded areas in the Replacement Parts Lists and Schematic Diagrams.
PAGE 38
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. ★ Part No. Description Code Ref. No.
PAGE 39
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. ★ Part No. Description Code Ref. No.
PAGE 40
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. ★ Part No. Description Code Ref. No. PWB-A: DUNTKA562WEA0 (27R-S200, CR27S20) PWB-A: DUNTKA562WEA1 (27R-S400) PWB-A: DUNTKA562WEA2 (27R-S450) PWB-A: DUNTKA562WEB4 (CSR20027) Part No.
PAGE 41
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. Part No. ★ Description Code Ref. No.
PAGE 42
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. Part No.
PAGE 43
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. ★ Part No. Description Code Ref. No.
PAGE 44
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. ★ Part No. Description Code Ref. No. PWB-B: DUNTKA527WEA0 (27R-S200/S450,CSR20027, CR27S20) PWB-B: DUNTKA527WEA5 (27R-S400) J 56p 500V Ceramic (27R-S200/S450, CSR20027, CR27S20) C1519 VCEA0A2CW106M J 10 160V EL.
PAGE 45
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. Part No. ★ Description Code Ref. No.
PAGE 46
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. ★ Part No. Description Code Ref. No.
PAGE 47
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. ★ Part No. Description Code Ref. No.
PAGE 48
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. ★ Part No. Description Code Ref. No. PWB-S: DUNTKA070WEV3 MTS MODULE UNIT INTEGRATED CIRCUIT IC3001 VHiCXA2074Q-1 J CXA2074Q AY CAPACITORS C3001 C3002 C3003 C3004 C3005 C3006 C3007 C3008 C3009 C3010 C3011 C3012 C3013 C3014 C3015 C3016 C3017 C3018 [EL.··· Electrolytic] VCE9GA1HW475M J 4.7 50V VCKYCY1HB562K J 5600p 50V VCQYTA1HM123K J 0.012 50V VCEA0A1HW105M J 1.0 50V VCEA9A1HW475M J 4.7 50V VCEA0A1HW106M J 10 50V VCEA0A1HW475M J 4.
PAGE 49
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. Part No. ★ Description Code Ref. No.
PAGE 50
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 Ref. No. ★ Part No. Description Code Ref. No.
PAGE 51
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 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. ★ MARK : Not replacement items.
PAGE 52
27R-S200, 27R-S400 27R-S450, CR27S20 CSR20027 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.