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Sharp 26SL41M Service Manual
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Sharp 26SL41M Service Manual

Sharp 26SL41M Service Manual

Color television
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PUSH OPEN
POWER
POWER
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 ..................................................................................................... 4
» INSTALLATION AND SERVICE INSTRUCTIONS ............................................................................... 5
» CHASSIS LAYOUT ............................................................................................................................. 11
» BLOCK DIAGRAM ..............................................................................................................................12
» SCHEMATIC DIAGRAMS ...................................................................................................................15
» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 32
» REPLACEMENT PARTS LIST ...........................................................................................................36
» PACKING OF THE SET ...................................................................................................................... 47
POWER INPUT ...................................... 110-220 V AC 50/60 Hz
POWER RATING
26SL41M .......................................................................... 120 W
26SL71M .......................................................................... 125 W
29SL81M .......................................................................... 130 W
PICTURE SIZE
26SL41M, 26SL71M ............................ 2,032 cm
29SL81M .............................................. 2,193 cm
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

SERVICE MANUAL

MTS STEREO
MODELS
CONTENTS
ELECTRICAL SPECIFICATIONS
2
(315 sq inch)
2
(340 sq inch)
(Nominal)

SHARP CORPORATION

1
COLOR TELEVISION
Chassis No. SN-91A
26SL41M, 26SL71M
29SL81M
AUDIO POWER
OUTPUT RATING
26SL41M ......................................................... 1.5 W + 1.5 W
26SL71M, 29SL81M .............................................. 5 W + 5 W
(at 5% distortion and Dual CH Operate)
SPEAKER
SIZE .............................................................. 12 × 6 cm (2 pcs.)
VOICE COIL IMPEDANCE
26SL41M .................................................... 32 ohm at 400 Hz
26SL71M, 29SL81M .................................... 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
Specifications are subject to change without
prior notice.
26SL41M, 26SL71M
29SL81M
S80G526SL41M/
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Summary of Contents for Sharp 26SL41M

  • Page 1: Table Of Contents

    AUDIO POWER POWER RATING OUTPUT RATING 26SL41M ................120 W 26SL41M ............1.5 W + 1.5 W 26SL71M ................125 W 26SL71M, 29SL81M ..........5 W + 5 W 29SL81M ................130 W (at 5% distortion and Dual CH Operate)

  • Page 2: Important Service Safety Precaution

    26SL41M, 26SL71M 29SL81M IMPORTANT SERVICE SAFETY PRECAUTION Service work should be performed only by qualified service technicians who are throughly 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

    26SL41M, 26SL71M 29SL81M 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 and etc.) and measure the AC voltage...

  • Page 4: Location Of User's Control

    26SL41M, 26SL71M 29SL81M LOCATION OF USER'S CONTROL Front Panel VIDEO/AUDIO IN 2 TERMINALS (VIDEO/AUDIO terminals are also provided on the rear.) – VOL + MENU VIDEO IN 2 L-AUDIO-R POWER POWER MTS STEREO POWER Press → On. Press again → Off.

  • Page 5: Installation And Service Instructions

    1. Apply 127V AC using a variac transformer for 4. The voltage should be approximately, 28.7kV accurate input voltage. (26SL41M/71M)/29.7kV(29SL81M)(at zero beam). 2. Allow for warm up and adjust all customer controls If a correct reading cannot be obtained, check circuitry for normal picture and sound.
  • Page 6 The service adjustment number will vary in increments of one, from "S01" to "OP2" (26SL41M)/ "M05" (26SL71M, 29SL81M). Select the item you wish to adjust.
  • Page 7 00, 01 Must be set to "00" OPTION (Set to each model) 00-FF Must be set to "E1"=26SL41, "E7"=26S71M, 29SL81M OPTION (Set to each model) 00-FF Must be set to "0C"=26SL41M, "0F"=26SL71M, "8F"=29SL81M INPUT LEVEL 00-0F ST VCO 00-3F FILTER...

  • Page 8: Service Adjustment

    26SL41M, 26SL71M 29SL81M 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 9 3. This is a two position adjustment, "00" is ON, "01" is adjustment "S04". OFF. 4. Adjust "S04" data value to obtain normal brightness 4. Adjust data value to "00"(26SL41M/71M)/"01" level. (29SL81M) for normal viewing. Vertical-Size Adjustment Sharpness and Audio Balance Adjust- ments 1.

  • Page 10: Mts Adjustment

    26SL41M, 26SL71M 29SL81M MTS ADJUSTMENT (Only for Models 26SL71M, 29SL81M) MTS Level Adjustment 1. Feed the following monaural signal to pin (14) of IC3001. Monaural signal : 300 Hz, 245 mVrms 2. Connect the rms voltmeter to pin (39) of IC3001.

  • Page 11: Chassis Layout

    26SL41M, 26SL71M 29SL81M CHASSIS LAYOUT...

  • Page 12: Block Diagram

    26SL41M, 26SL71M 29SL81M MODEL 26SL41M BLOCK DIAGRAM...
  • Page 13 26SL41M, 26SL71M 29SL81M MODEL 26SL71M BLOCK DIAGRAM...
  • Page 14 26SL41M, 26SL71M 29SL81M MODEL 29SL81M BLOCK DIAGRAM...

  • Page 15: Schematic Diagrams

    26SL41M, 26SL71M 29SL81M 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 26SL41M, 26SL71M 29SL81M MODEL 26SL41M SCHEMATIC DIAGRAM: MAIN-1 Unit...
  • Page 17 26SL41M, 26SL71M 29SL81M MODEL 26SL41M SCHEMATIC DIAGRAM: MAIN-2 Unit...
  • Page 18 26SL41M, 26SL71M 29SL81M MODEL 26SL71M SCHEMATIC DIAGRAM: MAIN-1 Unit...
  • Page 19 26SL41M, 26SL71M 29SL81M MODEL 26SL71M SCHEMATIC DIAGRAM: MAIN-2 Unit...
  • Page 20 26SL41M, 26SL71M 29SL81M MODEL 29SL81M SCHEMATIC DIAGRAM: MAIN-1 Unit...
  • Page 21 26SL41M, 26SL71M 29SL81M MODEL 29SL81M SCHEMATIC DIAGRAM: MAIN-2 Unit...
  • Page 22 26SL41M, 26SL71M 29SL81M SCHEMATIC DIAGRAM: CRT Unit A63AFW32X (26SL41M/71M) A68KRQ58X (29SL81M)
  • Page 23 26SL41M, 26SL71M 29SL81M SCHEMATIC DIAGRAM: FRONT AV Unit MODEL 26SL41M MODELS 26SL71M, 29SL81M...
  • Page 24 26SL41M, 26SL71M 29SL81M MODEL 26SL71M, 29SL81M SCHEMATIC DIAGRAM: AUDIO OUT Unit...
  • Page 25 26SL41M, 26SL71M 29SL81M MODEL 29SL81M SCHEMATIC DIAGRAM: Y/C Unit...

  • Page 26: Printed Wiring Board Assemblies

    26SL41M, 26SL71M 29SL81M PRINTED WIRING BOARD ASSEMBLIES PWB-A: MAIN Unit (Wiring Side)
  • Page 27 26SL41M, 26SL71M 29SL81M PWB-A: MAIN Unit (Chip Parts Side)
  • Page 28 26SL41M, 26SL71M 29SL81M PWB-P: AUDIO OUT Unit (Wiring Side) (Only for 26SL71M, 29SL81M)
  • Page 29 26SL41M, 26SL71M 29SL81M PWB-B: CRT Unit (Wiring Side) PWB-K: Y/C Unit (Wiring Side) (Only for 29SL81M) PWB-K: Y/C Unit (Chip Parts Side) PWB-F: FRONT AV Unit (Wiring Side) (Only for 29SL81M)

  • Page 30: Replacement Parts List

    J MM1111XF (26SL71M) (26SL41M, 26SL71M) IC951 VHiMM1113XF1E J MM1113XF (29SL81M) ' å V101 VB68KRQ58X/*S X Picture Tube IC2001 RH-iX3366CEN2 X TMPA8700CPF (26SL41M) AT (29SL81M) IC2001 RH-iX3366CEZZ X TMPA8700CPF ' å DY601 RCiLH0103GJZZ X Deflection Yoke (26SL71M, 29SL81M) (26SL41M, 26SL71M) IC2040 VHiKiA7045A-1 M KIA7045A ' å...
  • Page 31 (29SL81M) D494 VHD1SS119//-1 J Diode T701 RTRNP0543CEZZ J Transformer å D501 RH-DX0131CEZZ J Diode å T702 RTRNZ0017MEZZ J Transformer (26SL41M) å D510 RH-DX0441CEZZ J Diode å T702 RTRNZ0102GJZZ X Transformer å D621 RH-EX0631GEZZ J Zener Diode, 9.1V (26SL71M, 29SL81M) D622 RH-DX0131CEZZ J Diode å...
  • Page 32 29SL81M Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTA270WEV4 (26SL41M) C682 VCKYPA2HB331K J 330p 500V Ceramic PWB-A: DUNTA270WEV3 (26SL71M) C701 RC-FZ017SCEZZ J 0.22 275V Plastic å PWB-A: DUNTA270WEV2 (29SL81M) RC-FZ012SGEZZ J 0.047 AC250V Plastic...
  • Page 33 26SL41M, 26SL71M 29SL81M Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTA270WEV4 (26SL41M) RJ35 VRS-CY1JF000J 1/16W M-Ox. PWB-A: DUNTA270WEV3 (26SL71M) RJ36 VRS-CY1JF000J 1/16W M-Ox. PWB-A: DUNTA270WEV2 (29SL81M) RJ37 VRS-CY1JF000J 1/16W M-Ox. RJ38 VRS-CY1JF000J 1/16W M-Ox.
  • Page 34 26SL41M, 26SL71M 29SL81M Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTA270WEV4 (26SL41M) R526 VRD-RA2BE472J J 4.7k 1/8W Carbon PWB-A: DUNTA270WEV3 (26SL71M) (29SL81M) PWB-A: DUNTA270WEV2 (29SL81M) R551 VRS-CY1JF472J J 4.7k 1/16W M-Ox. R552 VRS-CY1JF102J J 1.0k 1/16W M-Ox.
  • Page 35 26SL41M, 26SL71M 29SL81M Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-A: DUNTA270WEV4 (26SL41M) R2024 VRD-RA2BE682J J 6.8k 1/8W Carbon PWB-A: DUNTA270WEV3 (26SL71M) (26SL41M, 26SL71M) PWB-A: DUNTA270WEV2 (29SL81M) R2025 VRD-RA2BE562J J 5.6k 1/8W Carbon (29SL81M) MAIN UNIT (Continued) R2025 VRD-RA2BE682J J 6.8k 1/8W...

  • Page 36: Crt Unit

    VCKYPB3DE472Z J 0.0047 2kV Ceramic P703 QPLGN0269GEZZ J Plug, 2-pin (H) C883 VCEA0A1HW106M J 10 P901 QPLGN0841CEZZ J Plug, 8-pin (FA) (26SL41M) AB P901 QPLGN0541CEZZ J Plug, 5-pin (FA) RESISTORS (26SL71M, 29SL81M) [M-Ox.··· Metal Oxide ] P903 QPLGN0541CEZZ J Plug, 5-pin (GBN)
  • Page 37 29SL81M Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-F: DUNTK9831WEV0 (26SL41M) PWB-K: DUNTK9832WEV0 (29SL81M) PWB-F: DUNTK9831WEV1 (26SL71M, 29SL81M) Y/C UNIT FRONT AV UNIT DIODE INTEGRATED CIRCUITS D4001 RH-PX0383CEZZ X LED, Power Ind. IC1401 VHiTC90A45F-1 J TC90A45F...
  • Page 38 26SL41M, 26SL71M 29SL81M Ref. No. Part No. Description Code Ref. No. Part No. Description Code PWB-K: DUNTK9832WEV0 (29SL81M) PWB-P: DUNTK9830WEV4 (26SL71M, 29SL81M) Y/C UNIT AUDIO OUT UNIT (Continued) R1407 VRS-CY1JF103J J 10k 1/16W M-Ox. INTEGRATED CIRCUITS R1408 VRS-CY1JF821J J 820 1/16W M-Ox.

  • Page 39: Packing Parts

    QCNW-0132GJZZ X Connecting Cord (S) (26SL41M) TLABZ0115GJZZ X Label (26SL71M) TLABZ0116GJZZ X Label (29SL81M) TLABZ0121GJZZ X Label (26SL41M) TLABM0003GJZZ X Model Label (26SL41M) TLABM0107GJZZ X Model Label (26SL71M, 29SL81M) SUPPLIED ACCESORRIES RRMCG1339CESB X Infrared R/C Unit (26SL41M) RRMCG1573CESAM Infrared R/C Unit...

  • Page 40: Cabinet Parts

    GDORF0102GJSB X Door PKAi-0002PE00 X Door Latch HiNDP0102GJZZ X Indication Plate (26SL41M) HiNDP0001GJZZ X Indication Plate (26SL71M) GCABB0009GJKA J Rear Cabinet (26SL41M) GCABB0008GJKA X Rear Cabinet (26SL71M) 29SL81M PUSH OPEN POWER POWER MTS STEREO CCABA0007WEH3 X Front Cabinet Ass’y Not Available –...

  • Page 41: Packing Of The Set

    26SL41M, 26SL71M 29SL81M 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 The packing case top is tape-sealed.
  • Page 42 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.

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