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Sharp 28LS-92E Service Manual
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Sharp 28LS-92E Service Manual

Sharp 28LS-92E Service Manual

System colour television
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PAL
/ SECAM
B/G, I
ELECTRICAL SPECIFICATIONS ........................................................................................ 3
IMPORTANT SERVICING NOTES ...................................................................................... 4
CONTROLS & TERMINALS ................................................................................................ 5
PRINTED WIRING BOARD LAYOUT ................................................................................. 7
PARTS LISTING ................................................................................................................... 8
HOW TO UPDATE THE TECHNICAL INFORMATION ...................................................... 11
SHARP CORPORATION
SERVICE MANUAL
SYSTEM COLOUR TELEVISION
L/L', B/G, D/K
28LS-92E
MODEL
In the interests of user safety (required by safety
regulations in some countries) the set should be re-
stored to its original condition and only parts identi-
cal to those specified should be used.
CONTENTS
1
28LS-92E
SE0028LS92E00
Issued: 22
Jan. 2004
nd
AK- 45
CHASSIS
This document has been published to
be used for after sales service only.
ES

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Summary of Contents for Sharp 28LS-92E

  • Page 1: Table Of Contents

    28LS-92E SERVICE MANUAL SE0028LS92E00 Issued: 22 Jan. 2004 AK- 45 CHASSIS / SECAM SYSTEM COLOUR TELEVISION B/G, I L/L’, B/G, D/K 28LS-92E MODEL In the interests of user safety (required by safety regulations in some countries) the set should be re- stored to its original condition and only parts identi- cal to those specified should be used.
  • Page 2 28LS-92E SERVICE MANUAL UPDATE LOG SHEET Technical Report No. Application Cause / Solution Part No. Page No. Data /Serial No. Technical Bulletin No. Use this page to keep any special servicing information as Technical Report (Bulletin), Technical Information, etc. If only part number changes are required, just change part number directly the part number in the Parts Listing Section.

  • Page 3: Electrical Specifications

    Y=0.300 ± 0.015 Specifications are subject to change without prior notice. MODEL DESTINATION (Operation Manual Languages) 28LS-92E: Deutsch, Français, Nederlands. 28LS-92EES: Español, Português. WARNING The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power receptacle, when servicing this chassis.

  • Page 4: Important Servicing Notes

    28LS-92E IMPORTANT SERVICING NOTES Only qualified service personnel are allowed to carry out maintenance and repair of this receiver. Servicing of High Voltage System and CRT It is important that the static charge is removed from the high voltage system when carrying out work on the receiver.

  • Page 5: Controls & Terminals

    28LS-92E CONTROLS & TERMINALS FRONT PANEL PX@S ÃWPGà à 8uà H@IV REAR PANEL (;7 (;7 Speakers (left + right) ANT = Antenna (75 W) POWER = Power On / Off EXT.1 = Scart Socket 1 (with RGB) - VOL + = Volume -/+ EXT.2 = Scart Socket 2 (with SVHS)
  • Page 6 28LS-92E REMOTE CONTROL = Stand By = Cursor Up = Cursor Right OK = OK Info (Program Menu) 0 - 9 = Direct Program -/-- = Double Digit Wide mode button P/CH+ = Program + + = Volume + = TV / Quit Menu...

  • Page 7: Printed Wiring Board Layout

    28LS-92E CHASSIS LAYOUT Mother Unit CRT Unit Control Panel Unit...

  • Page 8: Parts Listing

    28LS-92E PARTS LISTING REF No. PARTS DESCRIPTION SN CODE EX CODE D110 30001288 DIODE BYV27-200 2A/200V 50A REPLACEMENT PARTS D111 30001318 DIODE BA159 1A/800V 20A Replacement parts which have special safety characteristics are identified in D118 30009366 DIODE UF5402 3A/200V 150A this manual.
  • Page 9 28LS-92E REF No. PARTS DESCRIPTION SN CODE EX CODE REF No. PARTS DESCRIPTION SN CODE EX CODE C265 30000109 CAP MKT 470NF 63V J L505 30001992 FIXED COIL 10UH Q65 K-A C266 30000109 CAP MKT 470NF 63V J L506 30006770 FIXED COIL 0.22UH...
  • Page 10 28LS-92E REF No. PARTS DESCRIPTION SN CODE EX CODE REF No. PARTS DESCRIPTION SN CODE EX CODE C905 30000350 CAP EL 10UF 250V M R631 30000872 RES MF 1/4W 120K F R639 30001162 RES MO 1W 390R J C906 30000075...

  • Page 11: How To Update The Technical Information

    30023480 CAP MKP 10NF 2KV %3.5 30028092 SPEAKER 8R 15W 57*160 30028092 SPEAKER 8R 15W 57*160 30028208 POWER CORD SAFE EURO 2.2M SHARP W/FILTER 35000136 FUSE HOLDER TK79-A (GRAY) TH101 30001268 THERMISTOR 3P 20152368 PR.IC.45-SHARP 1.2.77-L.1 20090585 CHASSIS FRAME 288X (AK37) ARTWORK 20013018 LBL.BCK.CVR.ASSY (TV) (WO/UL)