Service manual

ManualsBrandsSharp ManualsTVs & monitors32R-S400

32R-S50, 32R-S400

36R-S50, 36R-S400

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.

S31R532R-S50/

COLOR TELEVISION

Chassis No. SN-92M

Page

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

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

» LOCATION OF USER'S CONTROL .....................................................................................................4

» INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................6

» CHASSIS LAYOUT .............................................................................................................................12

» BLOCK DIAGRAM ..............................................................................................................................14

» SCHEMATIC DIAGRAMS ...................................................................................................................16

» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................37

» REPLACEMENT PARTS LIST ............................................................................................................41

» PACKING OF THE SET ......................................................................................................................53

CONTENTS

AUDIO POWER

OUTPUT RATING .............. 3.0W + 3.0W (at 10% distortion and

Dual CH Operate)

SPEAKER

SIZE ............................................................... 12 x 6 cm (2 pcs.)

VOICE COIL IMPEDANCE .............................. 6 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

32R-S50/S400 ................................................................... 140W

36R-S50/S400 ................................................................... 165W

PICTURE SIZE

32R-S50/S400 ......................................... 3,073cm

(476sq inch)

36R-S50/S400 ......................................... 3,905cm

(605sq 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)

Specifications are subject to change without

prior notice.

ELECTRICAL SPECIFICATIONS

32R-S50, 32R-S400

36R-S50, 36R-S400

MODELS

SERVICE MANUAL

Summary of content (45 pages)

PAGE 1
32R-S50, 32R-S400 36R-S50, 36R-S400 SERVICE MANUAL S31R532R-S50/ COLOR TELEVISION Chassis No. SN-92M PI P /MT S ST ER EO MODELS 32R-S50, 32R-S400 36R-S50, 36R-S400 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
32R-S50, 32R-S400 36R-S50, 36R-S400 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
2R-S50, 32R-S400 36R-S50, 36R-S400 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
32R-S50, 32R-S400 36R-S50, 36R-S400 LOCATION OF USER'S CONTROL (32R-S50, 36R-S50) Front Panel POWER Press → On. Press again → Off. POWER – VOL + VIDEO/AUDIO IN 2 TERMINALS (VIDEO/AUDIO terminals are also provided on the rear.) CH MENU POWER – VOL + CH MENU VOLUME UP/DOWN (+) Increases sound. (–) Decreases sound. CHANNEL UP/DOWN – MENU (' ) Selects next higher channel. (" ) Selects next lower channel. • Press both at the same time to access the MAIN MENU screen.
PAGE 5
32R-S50, 32R-S400 36R-S50, 36R-S400 LOCATION OF USER'S CONTROL (Continued) (32R-S400, 36R-S400) Front Panel POWER Press → On. Press again → Off. POWER – VOL + VIDEO/AUDIO IN 2 TERMINALS (VIDEO/AUDIO terminals are also provided on the rear.) CH MENU POWER – VOL + CH MENU VOLUME UP/DOWN (+) Increases sound. (–) Decreases sound. CHANNEL UP/DOWN (') Selects next higher channel. (") Selects next lower channel. • Press both at the same time to access the MAIN MENU screen.
PAGE 6
32R-S50, 32R-S400 36R-S50, 36R-S400 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 5.0A fuse (F701), mounted on PWB-A, wired into one side of the AC line input.
PAGE 7
32R-S50, 32R-S400 36R-S50, 36R-S400 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 8
32R-S50, 32R-S400 36R-S50, 36R-S400 SERVICE NUMBER DATA ADJUSTMENT ITEM ADJUSTMENT CONTENTS RANGE INITIAL VALUE S01 S02 S03 S04 S05 S06 S07 S08 S09 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 OP1 PICTURE TINT COLOUR BRIGHTNESS SHARPNESS Vert. PHASE Hor. PHASE RF AGC Vert. AMPLITUDE PIF VCO R CUT-OFF G CUT -OFF B CUT-OFF G GAIN B GAIN TRAP CC POSITION MUTE ENERGY SAVE OFFSET PERIOD ADJ. FAO VOLUME STEP TUNER FAV. COLOR RTONE-G FAV. COLOR RTONE-B FAV.
PAGE 9
32R-S50, 32R-S400 36R-S50, 36R-S400 Ë SERVICE ADJUSTMENT VCO Adjustment White Balance Adjustment 1. Connect a digital voltmeter between pin (44) of IC201 and ground. 2. Receive a good local channel. 3. Enter the service mode and select the service adjustment "S10". 4. Adjust the data so that digital voltmeter reads 2.2V. 5. Adjustment is completed, remove the voltmeter, return to "normal" mode. 1. Receive a good local channel. 2.
PAGE 10
32R-S50, 32R-S400 36R-S50, 36R-S400 Vertical-Size and Linearity Adjustments Sharpness and Audio Balance Adjustments 1. Receive a good local channel. 2. Enter the service mode and select the service adjustment "S09". 3. While observing the top and bottom of the screen, adjust "S09" data value to proper vertical size. 4. Using the R502 control adjust for the best linearity. 1. Receive a good local channel. 2.
PAGE 11
32R-S50, 32R-S400 36R-S50, 36R-S400 Ë MTS ADJUSTMENT Ë P-IN-P ADJUSTMENT MTS Level Adjustment (Only for 32R-S400, 36R-S400) 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. 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.
PAGE 12
32R-S50, 32R-S400 36R-S50, 36R-S400 MODELS 32R-S50, 36R-S50 CHASSIS LAYOUT H G F E D C B A 1 2 3 4 12 5 6
PAGE 13
32R-S50, 32R-S400 36R-S50, 36R-S400 MODELS 32R-S400, 36R-S400 CHASSIS LAYOUT H G F E D C B A 1 2 3 4 13 5 6
PAGE 14
32R-S50, 32R-S400 36R-S50, 36R-S400 MODELS 32R-S50, 36R-S50 BLOCK DIAGRAM H G F E D C B A 1 2 3 4 14 5 6
PAGE 15
32R-S50, 32R-S400 36R-S50, 36R-S400 MODELS 32R-S400, 36R-S400 BLOCK DIAGRAM H G F E D C B A 1 2 3 4 15 5 6
PAGE 16
32R-S50, 32R-S400 36R-S50, 36R-S400 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 17
32R-S50, 32R-S400 36R-S50, 36R-S400 SCHEMATIC DIAGRAM: CRT Unit MODELS 32R-S50, 32R-S400 H G F E MODELS 36R-S50, 36R-S400 D C B A 1 2 3 4 17 5 6
PAGE 18
32R-S50, 32R-S400 36R-S50, 36R-S400 MODEL 32R-S50 SCHEMATIC DIAGRAM: MAIN-1 Unit H G F E D C B A 1 2 3 18 4 5 6 7 8 9 10 11 19 12
PAGE 19
32R-S50, 32R-S400 36R-S50, 36R-S400 MODEL 32R-S50 SCHEMATIC DIAGRAM: MAIN-2 Unit H G F E D C B A 1 2 3 20 4 5 6 7 8 9 10 11 21 12
PAGE 20
32R-S50, 32R-S400 36R-S50, 36R-S400 MODEL 32R-S400 SCHEMATIC DIAGRAM: MAIN-1 Unit H G F E D C B A 1 2 3 22 4 5 6 7 8 9 10 11 23 12
PAGE 21
32R-S50, 32R-S400 36R-S50, 36R-S400 MODEL 32R-S400 SCHEMATIC DIAGRAM: MAIN-2 Unit H G F E D C B A 1 2 3 24 4 5 6 7 8 9 10 11 25 12
PAGE 22
32R-S50, 32R-S400 36R-S50, 36R-S400 MODEL 36R-S50 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 23
32R-S50, 32R-S400 36R-S50, 36R-S400 MODEL 36R-S50 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 24
32R-S50, 32R-S400 36R-S50, 36R-S400 MODEL 36R-S400 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 25
32R-S50, 32R-S400 36R-S50, 36R-S400 MODEL 36R-S400 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 26
32R-S50, 32R-S400 36R-S50, 36R-S400 MODELS 32R-S400, 36R-S400 SCHEMATIC DIAGRAM: P-IN-P Unit H G F E D C B A 1 2 3 34 4 5 6 7 8 9 10 11 35 12
PAGE 27
32R-S50, 32R-S400 36R-S50, 36R-S400 SCHEMATIC DIAGRAM: CONTROL Unit H G F E D C B A 1 2 3 4 36 5 6
PAGE 28
32R-S50, 32R-S400 36R-S50, 36R-S400 PRINTED WIRING BOARD ASSEMBLIES H G F E D C PWB-B: CRT Unit (Wiring Side) B A PWB-F: CONTROL Unit (Wiring Side) 1 2 3 4 37 5 6
PAGE 29
32R-S50, 32R-S400 36R-S50, 36R-S400 H G F E D C B A PWB-A: MAIN Unit (Wiring Side) 1 2 3 4 38 5 6
PAGE 30
32R-S50, 32R-S400 36R-S50, 36R-S400 H G F E D C B A PWB-A: MAIN Unit (Chip Parts Side) 1 2 3 4 39 5 6
PAGE 31
32R-S50, 32R-S400 36R-S50, 36R-S400 H G F PWB-R: P-IN-P Unit (Wiring Side) E D C B A PWB-R: P-IN-P Unit (Chip Parts Side) 1 2 3 4 40 5 6
PAGE 32
R-S50, 32R-S400 36R-S50, 36R-S400 Ref. No. PARTS LIST Part No. ★ Description Code Ref. No. å 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 33
32R-S50, 32R-S400 36R-S50, 36R-S400 Ref. No. ★ Part No. Description Code Ref. No. PWB-A: DUNTKA118WEV5 (32R-S50) PWB-A: DUNTKA118WEV7 (32R-S400) PWB-A: DUNTKA118WEV8 (36R-S50) PWB-A: DUNTKA118WEW0 (36R-S400) Part No.
PAGE 34
32R-S50, 32R-S400 36R-S50, 36R-S400 Ref. No. ★ Part No. Description Code Ref. No.
PAGE 35
32R-S50, 32R-S400 36R-S50, 36R-S400 Ref. No. Part No. ★ Description Code Ref. No.
PAGE 36
32R-S50, 32R-S400 36R-S50, 36R-S400 Ref. No. Part No. ★ Description Code Ref. No.
PAGE 37
32R-S50, 32R-S400 36R-S50, 36R-S400 Ref. No. Part No. ★ Description Code Ref. No.
PAGE 38
32R-S50, 32R-S400 36R-S50, 36R-S400 Ref. No. Part No. ★ Description Code Ref. No. PWB-A: DUNTKA118WEV5 (32R-S50) PWB-A: DUNTKA118WEV7 (32R-S400) PWB-A: DUNTKA118WEV8 (36R-S50) PWB-A: DUNTKA118WEW0 (36R-S400) Part No.
PAGE 39
32R-S50, 32R-S400 36R-S50, 36R-S400 Ref. No. ★ Part No. Description Code Ref. No.
PAGE 40
32R-S50, 32R-S400 36R-S50, 36R-S400 Ref. No. ★ Part No. Description Code Ref. No.
PAGE 41
32R-S50, 32R-S400 36R-S50, 36R-S400 Ref. No. ★ Part No. Description Code Ref. No. CAPACITOR INTEGRATED CIRCUITS EL.
PAGE 42
32R-S50, 32R-S400 36R-S50, 36R-S400 Ref. No. ★ Part No. Description Code Ref. No.
PAGE 43
32R-S50, 32R-S400 36R-S50, 36R-S400 Ref. No. Part No. ★ Description Code Ref. No.
PAGE 44
32R-S50, 32R-S400 36R-S50, 36R-S400 PACKING OF THE SET ★ Polyethylene Bag Operation Manual Infrared R/C Unit ★ Batteries ★ Polyethylene Mat ★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 45
32R-S50, 32R-S400 36R-S50, 36R-S400 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. SHARP CORPORATION AV Systems Group Quality & Reliability Control Center Yaita, Tochigi 329-2193, Japan TQ1113-S Apr. 2001 Printed in Japan D SEM P SEMEX MI.