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28LS-92E

SERVICE MANUAL

This document has been published to
 be used for after sales service only.

   AK- 45

 CHASSIS

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

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

     MODEL

 28LS-92E

ES

SE

0028

LS92E00

              

 Issued: 22

nd

 Jan. 2004

 PAL 

B/G, I

 / SECAM 

L/L’, B/G, D/K  

SYSTEM COLOUR TELEVISION

Summary of Contents for 28LS-92E

Page 1: ...should be re stored to its original condition and only parts identi cal to those specified should be used CONTENTS 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 MODEL 28LS 92EES SE0028LS92E00 Issued 22nd Jan 2004 PAL B G I SECAM L L B G D K SYSTEM COLOUR TELEVIS...

Page 2: ...f only part number changes are required just change part number directly the part number in the Parts Listing Section If you need more information please refer to the Technical Report Bulletin SERVICE MANUAL UPDATE LOG SHEET Part No Technical Report No Technical Bulletin No Cause Solution Page No Application Data Serial No ...

Page 3: ... thru 855 25 MHz VHF IR A J S1 S41 CH Hiperband E2 E12 F2 F10 UHF I21 I69 CH E21 E69 AREA 28 29 A 0 4 BC 1 0 DE 1 0 FGHJ 1 5 KLMN 1 3 F G H J 1 3 STUV 1 0 mm Power Input 220V 240 Volts AC 50 Hz Power Consumption Normal Operation Method IEC60107 70 W Stand by Operation 4 W Audio Power Output Rating MPO Impedance Internal Left Speaker 10 W 8 Ω Internal Right Speaker 10 W 8 Ω Speakers 2 ways speaker ...

Page 4: ...us x ray radiation levels This is a problem when in close proximity to the receiver for long periods of time To reduce any risks associated with this please observe the following precautions 1 When undertaking any servicing on this chassis DO NOT increase the EHT to more than 29 9 KV at a instantaneous beam current of 1000 µA 2 Ensure that during normal operation the EHT does not exceed 26 5 KV at...

Page 5: ... TERMINALS 32 5 92 3 K 0 18 FRONT PANEL 17 7 7 REAR PANEL Speakers left right POWER Power On Off VOL Volume P Ch Program MENU Menu ANT Antenna 75 W EXT 1 Scart Socket 1 with RGB EXT 2 Scart Socket 2 with SVHS Power Cable ...

Page 6: ...ide mode button P CH Program Volume TV Quit Menu 7 EXT button EXT 1 RGB EXT 2 EXT 2S Yellow Feature Menu Blue Installation Menu Hold Update Index Page Reveal Expand Mix Teletext Time Red Sound Menu Green Picture Menu Mute I II Mono Stereo Dual I II Volume P CH Program Flash back button M Menu Cursor Down Cursor Left ...

Page 7: ...7 28LS 92E CHASSIS LAYOUT Mother Unit CRT Unit Control Panel Unit ...

Page 8: ... AB D118 30009366 DIODE UF5402 3A 200V 150A AB AF D119 30009366 DIODE UF5402 3A 200V 150A AB AF D121 20092405 CN ASY 37 DIODE UF5407 FERRITE BAR 5 8 AB AE D127 30001315 DIODE BYD33D 1A 200V 20A AA AE D130 30001329 DIODE 1N4007 1A 1000V 30A AA AB D131 30001318 DIODE BA159 1A 800V 20A AA AB D133 30003722 DIODE ZENER ZPD15V AA AA D601 30001377 DIODE ZENER 33V UZT 33B AB AF D602 30001318 DIODE BA159 1...

Page 9: ...M AA AB C253 30000345 CAP EL 10UF 50V M AA AB C259 30000345 CAP EL 10UF 50V M AA AB REF No PARTS DESCRIPTION SN CODE EX CODE C265 30000109 CAP MKT 470NF 63V J AA AD C266 30000109 CAP MKT 470NF 63V J AA AD C277 30000345 CAP EL 10UF 50V M AA AB C280 30000345 CAP EL 10UF 50V M AA AB C283 30000345 CAP EL 10UF 50V M AA AB C286 30000345 CAP EL 10UF 50V M AA AB C327 30000109 CAP MKT 470NF 63V J AA AD C34...

Page 10: ...AA REF No PARTS DESCRIPTION SN CODE EX CODE R631 30000872 RES MF 1 4W 120K F AA AA R639 30001162 RES MO 1W 390R J AA AB R640 30001134 RES MO 2W 2 2R J AA AB R641 30000965 RES MF 1 2W 0 33R J AA AA R644 30000649 RES CF 1 2W 33R J AA AB R645 30000580 RES CF 1 4W 22R J AA AB R649 30001228 RES FUSE SAFE 1 2W 2 2R J AA AB R650 30001082 RES MO 1 2W 1K J AA AB R652 30000848 RES MF 1 4W 1K F AA AB R657 30...

Page 11: ...87 CNAS2P 350TRFPFCDISW C AA AE 30019101 CABL1P 350 DISUL1672AWG22 AA AB 30022450 SWITCHSAFEON OFF8A 128A AC AK 30023480 CAPMKP10NF2KV 3 5 30028092 SPEAKER8R15W57 160 AE AN 30028092 SPEAKER8R15W57 160 AE AN 30028208 POWERCORDSAFEEURO2 2MSHARPW FILTER AG AT 35000136 FUSEHOLDERTK79 A GRAY AA AD TH101 30001268 THERMISTOR3P AD AM 20152368 PR IC 45 SHARP1 2 77 L 1 AS BD 20090585 CHASSISFRAME288X AK37 A...

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