Sharp 27SF560 Service Manual
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Sharp 27SF560 Service Manual

Sharp 27SF560 Service Manual

Sharp 27sf560 color television service manual
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See also: Operating Manual
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 ..................................................................................................... 5
» INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................ 6
» SERVICE ADJUSTMENT ................................................................................................................... 10
» CHASSIS LAYOUT ............................................................................................................................. 14
» BLOCK DIAGRAM .............................................................................................................................. 15
» DESCRIPTION OF SCHEMATIC DIAGRAMS & WAVEFORMS ........................................................ 16
» SCHEMATIC DIAGRAMS ................................................................................................................... 17
» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 24
» PARTS LIST ........................................................................................................................................ 29
» PACKING OF THE SET ...................................................................................................................... 38
POWER INPUT ..................................................... 120V AC, 60 Hz
POWER RATING .................................................................. 140W
PICTURE SIZE ....................................... 2,193.5 cm
CONVERGENCE ............................................................. Magnetic
SWEEP DEFLECTION .................................................... Magnetic
FOCUS ............................................... Hi-Bi-Potential Electrostatic
INTERMEDIATE FREQUENCIES
Picture IF Carrier Frequency ...... 45.75 MHz (Analog Terrestrial)
Sound IF Carrier Frequency ....... 41.25 MHz (Analog Terrestrial)
Color Sub-Carrier Frequency ..... 42.17 MHz (Analog Terrestrial)
IF Center Frequency ........................ 44 MHz (Digital Terrestrial)
AUDIO POWER
OUTPUT RATING .............. 5.0W + 5.0W (at 10% distortion and

SERVICE MANUAL

MODEL
CONTENTS

ELECTRICAL SPECIFICATIONS

SPEAKER
SIZE ........................................................ 12 x 6 cm oval (2 pcs.)
2
(339sq inch)
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
Digital Terrestrial Broadcast (VHF/UHF) ....................... 2 thru 69
(Nominal)
Specifications are subject to change without
Dual CH Operate)
prior notice.
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
COLOR TELEVISION
Chassis No. GB-3D
27SF560
(EIA, Channel Plan U.S.A.)
27SF560
SY5Q927SF560/
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Summary of Contents for Sharp 27SF560

  • Page 1: Table Of Contents

    27SF560 SERVICE MANUAL SY5Q927SF560/ COLOR TELEVISION Chassis No. GB-3D 27SF560 MODEL 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

    27SF560 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 1.

  • Page 3: Safety Notice

    27SF560 IMPORTANT SERVICE SAFETY PRECAUTION (Continued) BEFORE RETURNING THE RECEIVER • Connect the resistor connection to all exposed metal 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 Before returning the receiver to the user, perform across the resistor.
  • Page 4 27SF560 Precautions for using lead-free solder 1 Employing lead-free solder "PWBs" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder.

  • Page 5: Location Of User's Control

    27SF560 LOCATION OF USER'S CONTROL Front Panel INSIDE DOOR POWER Press Press again Off. VIDEO/AUDIO IN 2 TERMINALS REMOTE CONTROL SENSOR MENU Press Accesses MAIN MENU. VOLUME UP/DOWN CHANNEL UP/DOWN Press again Exits MAIN MENU. ( + ) Increases sound.

  • Page 6: Installation And Service Instructions

    27SF560 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 7 27SF560 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 serv- ice adjustments are required.
  • Page 8 TINT-S 0-127 (00h-7Fh) 62 (3Eh) S-Terminal Input C-TRAP 0-1 (00h-01h) 00 (00h) AUTO FRESH 0-1 (00h-01h) 00 (00h) SHARP P F 0-1 (00h-01h) 01 (01h) CD MATRIX 0-3 (00h-03h) 02 (02h) B-Y ATT 0-1 (00h-01h) 00 (00h) R-Y ATT 0-1 (00h-01h)
  • Page 9 27SF560 DATA SERVICE NOTES FIXED VALUE ADJUSTMENT ITEM NUMBER RANGE (HEX) INITIAL VALUE V POSITION 0-7 (00h-07h) 00 (00h) H POSITION 0-31 (00h-1Fh) 15 (0Fh) V SIZE 0-127 (00h-7Fh) 89 (59h) H SIZE 0-63 (00h-3Fh) 36 (24h) V-LINEARITY 0-15 (00h-0Fh)

  • Page 10: Service Adjustment

    27SF560 Holding down both the VOL-up and CH-up buttons on the TV set at service mode for more than 2 seconds will automatically write the above initial values into IC2101. ADJUSTMENT PART REPLACED NOTES NECESSARY UNNECESSARY IC2001 Data is stored in IC2101.
  • Page 11 27SF560 Sub-Tint Adjustment 4. For V-linearity adjustment, select data bus "D05" and adjust to get the proper vertical linearity. 1. Receive the half color bar signal. (SCREEN FORMAT 16:9) • RF INPUT (TU1101) 5. Input data of "D22" to mines 38 step from "D03” data.

  • Page 12: Mts Adjustment

    27SF560 Ë MTS ADJUSTMENT MTS Level Adjustment 1. Set the sound volume above 1. Monoral signal: 400Hz, 100% modulation 2. Confirm "EX4" data is "5Ah". 3. Vary the "M01" bus data until the voltage to pin (39) of IC3001 to become the value as stated below.
  • Page 13 27SF560 - M E M O -...

  • Page 14: Chassis Layout

    27SF560 CHASSIS LAYOUT...

  • Page 15: Block Diagram

    27SF560 BLOCK DIAGRAM...

  • Page 16: Description Of Schematic Diagrams & Waveforms

    27SF560 DESCRIPTION OF SCHEMATIC DIAGRAMS WAVEFORM MEASUREMENT CONDITIONS: NOTES: 1. Photographs taken on a standard gated color bar 1. The unit of resistance "ohm" is omitted. signal, the tint setting adjusted for proper color. The (K=kW=1000W, M=MW) wave shapes at the red, green and blue cathodes of 2.

  • Page 17: Schematic Diagrams

    27SF560 SCHEMATIC DIAGRAM: CRT Unit...
  • Page 18 27SF560 SCHEMATIC DIAGRAM: MAIN-1 Unit...
  • Page 19 27SF560...
  • Page 20 27SF560 SCHEMATIC DIAGRAM: MAIN-2 Unit...
  • Page 21 27SF560...
  • Page 22 27SF560 SCHEMATIC DIAGRAM: 2-LINE Y/C Unit...
  • Page 23 27SF560...

  • Page 24: Printed Wiring Board Assemblies

    27SF560 PRINTED WIRING BOARD ASSEMBLIES PWB-A: MAIN Unit (Wiring Components Side)
  • Page 25 27SF560...
  • Page 26 27SF560 PWB-A: MAIN Unit (Components side)
  • Page 27 27SF560...
  • Page 28 27SF560 PWB-B: CRT Unit (Wiring Side) PWB-D: 2-LINE Y/C Unit (Wiring Side) PWB-D: 2-LINE Y/C Unit (Chip Parts Side)

  • Page 29: Parts List

    å IC701 VHiTEA1533A-1 X TEA1533AP å IC702 RH-FXA003WJZZ X PC123Y82 in USA: Contact your nearest SHARP Parts Distributor to order. For çå IC703 VHiSE130N++-F X SE130N location of SHARP Parts Distributor, Please call Toll-Free; 1- IC751 VHiPQ09RDA1-1 X PQ090RDA1SZ 800-BE-SHARP...
  • Page 30 27SF560 ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code DIODES FILTERS AND COILS D103 RH-DX0441CEZZY X DX0441CE D361 VHD1SS133++-1Y X 1SS133++ CF302 RFiLC0449CEZZ+ X Filter D362 VHD1SS133++-1Y X 1SS133++ CF401 RFiLC0446CEZZ+ X Filter D410 RH-EX0611GEZZY X Zener Diode, 5.1V...
  • Page 31 27SF560 ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code C437 VCKYCY1CF104ZY X 0.1 Ceramic C741 VCEA4A2AN105M+ X 1 100V Electrolytic C438 VCKYCY1HB103KY X 0.01 Ceramic C742 VCQYTA1HM683J+ X 0.068 50V Mylar C439 VCEA0A1HW106M+X 10...
  • Page 32 27SF560 ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code RJ33 VRS-CY1JF000JY X 0 1/16W Metal Oxide C1111 VCEA0A0JW108M+ X 1000 6.3V Electrolytic RJ36 VRS-CY1JF000JY X 0 1/16W Metal Oxide C1112 VCKYCY0JF105ZY X 1 6.3V...
  • Page 33 27SF560 ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code R480 VRS-CY1JF223JY X 22k 1/16W Metal Oxide R744 VRS-CY1JF103JY X 10k 1/16W Metal Oxide R745 VRD-RA2BE683JY X 68k 1/8W Carbon R481 VRS-CY1JF152JY X 1.5k 1/16W Metal Oxide...
  • Page 34 27SF560 ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code R954 VRS-CY1JF221JY X 220 1/16W Metal Oxide R2041 VRS-CY1JF333JY X 33k 1/16W Metal Oxide R955 VRS-CY1JF221JY X 220 1/16W Metal Oxide R2042 VRS-CY1JF101JY X 100 1/16W Metal Oxide...
  • Page 35 27SF560 ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code SWITCHES D1502 VHD1SS119//-1Y X 1SS119 D1503 VHD1SS119//-1Y X 1SS119 S2501 QSW-K0003AJZZ+ X Switch, POWER D1506 RH-DX0487CEZZY X DX0487CE S2502 QSW-K0003AJZZ+ X Switch, MENU D1507 RH-DX0487CEZZY X DX0487CE S2503 QSW-K0003AJZZ+ X Switch, VOL.-DOWN...
  • Page 36 27SF560 ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code MISCELLANEOUS PARTS RDA1506 PRDAR5072CEFW X Heat Sink for Q1560 RDA1507 PRDAR5072CEFW X Heat Sink for Q1507 P1401 QPLGZ0810CEZZ X Plug, 8pin (CA) SC850 QSOCV1011CEZZ X Socket 12 CRT SOCKRT...

  • Page 37: Packing Parts

    CCABAB217WEH0 X Front Cabinet Assembly RRMCGA447WJSA X Infrared Remote Control Unit Not Available - Front Cabinet – TiNS-C133WJZZ X Operation Manual HBDGB3141CESA X SHARP Badge TGAN-A216WJN1 X Guarantee Card GCOVAA282WJKA X LED/RC Cover GCOVHA017WJKZ X Cover GDORFA027WJKD X Door HiNDPA278WJSA...

  • Page 38: Packing Of The Set

    27SF560 PACKING OF THE SET FRONT Use tape to fix the top side of packing case. REAR Use 12 staples to fix the bottom side of packing case.
  • Page 40 27SF560 COPYRIGHT © 2006 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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