Service manual

ManualsBrandsSharp ManualsTV36R-S60

36R-S60

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.

S91B136R-S60/

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................................................................................5

» CHASSIS LAYOUT ............................................................................................................................. 11

» BLOCK DIAGRAM ..............................................................................................................................12

» SCHEMATIC DIAGRAMS ...................................................................................................................13

» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................20

» REPLACEMENT PARTS LIST ............................................................................................................23

» PACKING OF THE SET ......................................................................................................................31

CONTENTS

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 .................................................................. 165W

PICTURE SIZE ........................................... 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)

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

36R-S60

MODEL

SERVICE MANUAL

Summary of content (30 pages)

PAGE 1
36R-S60 SERVICE MANUAL S91B136R-S60/ COLOR TELEVISION Chassis No. SN-92M MODEL 36R-S60 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 ......................................................................................................... 1 » IMPORTANT SERVICE SAFETY PRECAUTION .................................
PAGE 2
36R-S60 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.
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6R-S60 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.) Any current measured must not exceed 0.
PAGE 4
36R-S60 LOCATION OF USER'S CONTROL Front Panel VIDEO/AUDIO IN 2 TERMINALS POWER Press → On. Press again → Off. SENSOR AREA FOR REMOTE CONTROL 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. Basic Remote Control Functions Infrared Transmitter Window POWER Press → On. Press again → Off. INPUT Press → Switch to external video INPUT 1 mode.
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36R-S60 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.
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36R-S60 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.
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36R-S60 SERVICE NUMBER 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 OP2 M01 M02 M03 M04 M05 P01 P02 P03 P04 P05 P06 P07 DATA ADJUSTMENT ITEM ADJUSTMENT CONTENTS RANGE INITIAL VALUE 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.
PAGE 8
36R-S60 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 9
36R-S60 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. Enter the service mode and select the service adjustments "S05" for sharpness and "S17" for audio balance.
PAGE 10
36R-S60 Ë 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". 4. Adjust the data so that the rms voltmeter reads 490 ±10 mVrms. MTS VCO Adjustment 1. Keep the unit in no-signal state. 2. Connect the frequency counter to pin (39) of IC3001. 3.
PAGE 11
36R-S60 CHASSIS LAYOUT H G F E D C B A 1 2 3 4 11 5 6
PAGE 12
36R-S60 BLOCK DIAGRAM H G F E D C B A 1 2 3 4 12 5 6
PAGE 13
36R-S60 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. (K=kΩ=1000Ω, M=MΩ) 2.
PAGE 14
36R-S60 SCHEMATIC DIAGRAM: MAIN-1 Unit H G F E D C B A 1 2 3 14 4 5 6 7 8 9 10 11 15 12
PAGE 15
36R-S60 SCHEMATIC DIAGRAM: MAIN-2 Unit H G F E D C B A 1 2 3 16 4 5 6 7 8 9 10 11 17 12
PAGE 16
36R-S60 SCHEMATIC DIAGRAM: CRT Unit H G F E D C B A 1 2 3 4 18 5 6
PAGE 17
36R-S60 SCHEMATIC DIAGRAM: CONTROL Unit H G F E D C B A 1 2 3 4 19 5 6
PAGE 18
36R-S60 H G F E D C B A PWB-A: MAIN Unit (Wiring Side) 1 2 3 4 20 5 6
PAGE 19
36R-S60 H G F E D C B A PWB-A: MAIN Unit (Chip Parts Side) 1 2 3 4 21 5 6
PAGE 20
36R-S60 H G F E D C PWB-B: CRT Unit (Wiring Side) B A PWB-F: CONTROL Unit (Wiring Side) 1 2 3 4 22 5 6
PAGE 21
36R-S60 Ref. No. PARTS LIST Part No. ★ Description Code Ref. No. "HOW TO ORDER REPLACEMENT PARTS" 4. DESCRIPTION in USA: Contact your nearest SHARP Parts Distributor to order. For location of SHARP Parts Distributor, Please call TollFree; 1-800-BE-SHARP 'å å å å ç MARK : X- RAY RELATED PARTS Part No.
PAGE 22
36R-S60 Ref. No. Part No. ★ Description Code Ref. No.
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36R-S60 Ref. No. Part No. ★ Description Code Ref. No.
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36R-S60 Ref. No. ★ Part No. Description Code Ref. No.
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36R-S60 Ref. No. Part No. ★ Description Code Ref. No.
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36R-S60 Ref. No. ★ Part No. Description Code Ref. No.
PAGE 27
36R-S60 Ref. No. ★ Part No. Description Code Ref. No. PWB-B:DUNTKA118WEV0 R885 R886 R887 R888 R891 R892 R894 R895 CRT UNIT TRANSISTORS Q850 Q851 Q852 Q853 Q854 Q855 Q894 VS2SC4544LB2E VS2SC4544LB2E VS2SC4544LB2E VS2SC3198-Y-1 VS2SC3198-Y-1 VS2SC3198-Y-1 VS2SA1266-Y-1 J J J J J J J 2SC4544LB 2SC4544LB 2SC4544LB 2SC3198-Y 2SC3198-Y 2SC3198-Y 2SA1266-Y AD AD AD AA AA AA AA COILS J Peaking 220µH J Peaking 220µH J Peaking 220µH AB AB AB CAPACITORS C850 C851 C876 C877 C878 C880 C892 C893 C895 [EL.
PAGE 28
36R-S60 Ref. No. ★ Part No. Description Code Ref. No. PWB-F:DUNTKB023WEA0 Description Code SUPPLIED ACCESORRIES CONTROL UNIT CAPACITOR [EL.··· Electrolytic] C4001 VCEA0A1HW475M J 4.7 50V ★ Part No. EL.
PAGE 29
36R-S60 PACKING OF THE SET ★ Polyethylene Bag Guarantee Card Operation Manual Infrared R/C Unit ★ Batteries ★ Polyethylene Mat ★Buffer Material FRONT ★ Packing Case ★ Packing Case Label 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 30
36R-S60 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 TQ1249-S Nov. 2001 Printed in Japan D SEM P SEMEX MI.