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28LF-94E

REF No. PARTS DESCRIPTION

SN CODE EX CODE

R785

30012641 RES SMD 1/16W 10K J (0603)

R786

30012662 RES SMD 1/16W 2.7K J (0603)

R787

30022085 RES SMD 1/16W 33R J (0402)

R788

30012692 RES SMD 1/16W 4.7K J (0603)

R789

30012662 RES SMD 1/16W 2.7K J (0603)

R791

30012509 RES SMD 1/16W 100K J (0603)

R792

30022085 RES SMD 1/16W 33R J (0402)

R793

30021987 RES SMD 1/16W 4.7K J (0402)

R794

30021996 RES SMD 1/16W 10K J (0402)

R795

30021987 RES SMD 1/16W 4.7K J (0402)

R796

30012641 RES SMD 1/16W 10K J (0603)

R797

30022113 RES SMD 1/16W 68R J (0402)

R798

30012641 RES SMD 1/16W 10K J (0603)

R799

30012641 RES SMD 1/16W 10K J (0603)

R800

30022085 RES SMD 1/16W 33R J (0402)

R802

30000718 RES CF 1/4W 4.7K J

R803

30000593 RES SMD 1/10W 2.2K J (0805)

R803

30021987 RES SMD 1/16W 4.7K J (0402)

R804

30000481 RES CF 1/4W 1M J

R805

30000983 RES MF 1/4W 4.7K F

R805

30012692 RES SMD 1/16W 4.7K J (0603)

R806

30000452 RES CF 1/4W 10R J

R806

30012641 RES SMD 1/16W 10K J (0603)

R807

30012692 RES SMD 1/16W 4.7K J (0603)

R807

30021996 RES SMD 1/16W 10K J (0402)

R808

30012641 RES SMD 1/16W 10K J (0603)

R809

30021996 RES SMD 1/16W 10K J (0402)

R810

30001159 RES MO 1W 0.33R J

R810

30021996 RES SMD 1/16W 10K J (0402)

R812

30001257 RES MG SAFE 1/2W 4.7M J

R812

30012641 RES SMD 1/16W 10K J (0603)

R813

30000710 RES SMD 1/10W 47R J (0805)

R813

30012657 RES SMD 1/16W 1K J (0603)

R814

30013199 RES SMD 1/10W 2.4K F 0805

R814

30021996 RES SMD 1/16W 10K J (0402)

R815

30012510 RES SMD 1/16W 100R J (0603)

R815

30012641 RES SMD 1/16W 10K J (0603)

R816

30022067 RES SMD 1/16W 6.2K J (0402)

R818

30025723 RES SMD 1/10W 68K F (0805)

R819

30012641 RES SMD 1/16W 10K J (0603)

R819

30012657 RES SMD 1/16W 1K J (0603)

R820

30000590 RES CF 1/4W 2.2K J

R820

30021991 RES SMD 1/16W 100R J (0402)

R821

30000590 RES CF 1/4W 2.2K J

R821

30021991 RES SMD 1/16W 100R J (0402)

R822

30012641 RES SMD 1/16W 10K J (0603)

R823

30000718 RES CF 1/4W 4.7K J

R823

30022061 RES SMD 1/16W 27K J (0402)

R824

30000718 RES CF 1/4W 4.7K J

R825

30012641 RES SMD 1/16W 10K J (0603)

R825

30022042 RES SMD 1/16W 1K J (0402)

R826

30021996 RES SMD 1/16W 10K J (0402)

R827

30000588 RES SMD 1/10W 220R J 0805

R827

30012657 RES SMD 1/16W 1K J (0603)

R828

30001174 RES MO 2W 0.47R J

R829

30000477 RES CF 1/4W 100K J

R829

30022040 RES SMD 1/16W 18K J (0402)

R830

30000475 RES SMD 1/10W 10K J 0805

R831

30007026 RES SMD 1/10W 5.1K J(0805)

R831

30022078 RES SMD 1/16W 3.9K J (0402)

R832

30000466 RES CF 1/4W 1K J

R832

30021958 RES SMD 1/16W 47K J (0402)

R833

30001174 RES MO 2W 0.47R J

R834

30000469 RES SMD 1/10W 1K J 0805

R834

30022078 RES SMD 1/16W 3.9K J (0402)

R835

30000475 RES SMD 1/10W 10K J 0805

REF No. PARTS DESCRIPTION

SN CODE EX CODE

R704

30022085 RES SMD 1/16W 33R J (0402)

R705

30022056 RES SMD 1/16W 220R J (0402)

R706

30012650 RES SMD 1/16W 15K J (0603)

R707

30012650 RES SMD 1/16W 15K J (0603)

R708

30012708 RES SMD 1/16W 68K J (0603)

R709

30012708 RES SMD 1/16W 68K J (0603)

R710

30022118 RES SMD 1/16W 75R J (0402)

R711

30021996 RES SMD 1/16W 10K J (0402)

R712

30022118 RES SMD 1/16W 75R J (0402)

R713

30021996 RES SMD 1/16W 10K J (0402)

R714

30021996 RES SMD 1/16W 10K J (0402)

R715

30021984 RES SMD 1/16W 1.6K J (0402)

R716

30012679 RES SMD 1/16W 3.9K J (0603)

R717

30012679 RES SMD 1/16W 3.9K J (0603)

R719

30021996 RES SMD 1/16W 10K J (0402)

R720

30012703 RES SMD 1/16W 56K J (0603)

R721

30012708 RES SMD 1/16W 68K J (0603)

R722

30012703 RES SMD 1/16W 56K J (0603)

R723

30012708 RES SMD 1/16W 68K J (0603)

R724

30022085 RES SMD 1/16W 33R J (0402)

R725

30012983 RES SMD 1/16W 15R J 0603

R726

30022089 RES SMD 1/16W 680R J (0402)

R727

30021975 RES SMD 1/16W 15R J (0402)

R728

30012983 RES SMD 1/16W 15R J 0603

R729

30021977 RES SMD 1/16W 1.2K J (0402)

R730

30021977 RES SMD 1/16W 1.2K J (0402)

R731

30022083 RES SMD 1/16W 330R J (0402)

R732

30012657 RES SMD 1/16W 1K J (0603)

R733

30022085 RES SMD 1/16W 33R J (0402)

R734

30022089 RES SMD 1/16W 680R J (0402)

R735

30021975 RES SMD 1/16W 15R J (0402)

R736

30021977 RES SMD 1/16W 1.2K J (0402)

R737

30021977 RES SMD 1/16W 1.2K J (0402)

R738

30022083 RES SMD 1/16W 330R J (0402)

R739

30021977 RES SMD 1/16W 1.2K J (0402)

R740

30022085 RES SMD 1/16W 33R J (0402)

R741

30022085 RES SMD 1/16W 33R J (0402)

R742

30022085 RES SMD 1/16W 33R J (0402)

R744

30012657 RES SMD 1/16W 1K J (0603)

R746

30022085 RES SMD 1/16W 33R J (0402)

R747

30022089 RES SMD 1/16W 680R J (0402)

R748

30021975 RES SMD 1/16W 15R J (0402)

R749

30012657 RES SMD 1/16W 1K J (0603)

R750

30021977 RES SMD 1/16W 1.2K J (0402)

R751

30021977 RES SMD 1/16W 1.2K J (0402)

R752

30022083 RES SMD 1/16W 330R J (0402)

R753

30012669 RES SMD 1/16W 22K J (0603)

R754

30012669 RES SMD 1/16W 22K J (0603)

R755

30022085 RES SMD 1/16W 33R J (0402)

R756

30012662 RES SMD 1/16W 2.7K J (0603)

R757

30012657 RES SMD 1/16W 1K J (0603)

R758

30012662 RES SMD 1/16W 2.7K J (0603)

R761

30022481 RES SMD 1/16W 240R F (0402)

R762

30021996 RES SMD 1/16W 10K J (0402)

R763

30021996 RES SMD 1/16W 10K J (0402)

R764

30022085 RES SMD 1/16W 33R J (0402)

R771

30012641 RES SMD 1/16W 10K J (0603)

R772

30021987 RES SMD 1/16W 4.7K J (0402)

R773

30021996 RES SMD 1/16W 10K J (0402)

R775

30021977 RES SMD 1/16W 1.2K J (0402)

R779

30012692 RES SMD 1/16W 4.7K J (0603)

R780

30012641 RES SMD 1/16W 10K J (0603)

R781

30012696 RES SMD 1/16W 47K J (0603)

R782

30022085 RES SMD 1/16W 33R J (0402)

R783

30022085 RES SMD 1/16W 33R J (0402)

R784

30012641 RES SMD 1/16W 10K J (0603)

Summary of Contents for 28LF-94E

Page 1: ... 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 9 HOW TO UPDATE THE TECHNICAL INFORMATION 19 SHARP CORPORATION SE0028LF94S00 Issued 7th July 2004 In order to service the model 28LF 94E refer to the AK 53 Chassis Service Manual SE00AK53CHA00 MODEL 28LF 94E P...

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: ...ng Ranges 48 25MHz thru 855 25 MHz VHF S1 S41 CH Hiperband E2 E12 F2 F10 UHF E21 E69 Power Input 220V 240 Volts AC 50 Hz Power Consumption Normal Operation Method IEC60107 113 W Stand by Operation 3 W Audio Power Output Rating MPO Impedance Internal Left Speaker 10 W 7 Ω Internal Right Speaker 10 W 7 Ω Speakers Full range 2 pcs 60 x 120 mm Convergence Maximum Misconvergence MODEL DESTINATION Opera...

Page 4: ...ous 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 33 KV at a instantaneous beam current of 1800 µA 2 Ensure that during normal operation the EHT does not exceed 29 65 KV at...

Page 5: ...hone 3 6 mm Ø Speakers left right Power On Off Volume CH Program S VIDEO 6 9 2 9 2 6 5 8 2 6 9 2 9 2 6 5 8 2 FRONT PANEL REAR TV RF Input 1 Aerial terminal 21 pin In Out 2 21 pin Audio Video RGB EXT 1 With PAL SECAM NTSC S Video Input 3 21 pin Audio Video EXT 2 With PAL SECAM NTSC Video Input 7 7 ...

Page 6: ... P CH Program Up Volume Up TV Quit Menu 7 EXT button EXT 1 EXT 2 S VHS S VHS EXT2 or FRONT AV Yellow Feature Menu Blue Installation Menu Hold 1 6 Update Index Page Reveal Expand Mix 21 Teletext Time 23 Red Sound Menu Green Picture Menu Mute I II Mono Stereo Dual I II Volume Down P CH Program Down Flash back button 30 M Menu 31 Cursor Down 32 Cursor Left ...

Page 7: ...7 28LF 94E CHASSIS LAYOUT Mother Unit Front Unit SW Keyboard FAV ...

Page 8: ...8 28LF 94E Digital Module Unit CRT Socket Unit ...

Page 9: ...B AA AC Q811 30001457 TR BC848B SMD AA AC Q812 30001458 TR BC858B SMD AA AB Q813 30007802 TR STP20N06LFP AD AL Q814 30001455 TR BC558B AA AC Q815 30023137 IC TL431 1 TOL TO 92 AA AD Q816 30023137 IC TL431 1 TOL TO 92 AA AD Q817 30001384 TR MCR22 6 AB AG Q818 30010149 TR BD243C AC AG Q900 30001427 TR BF422 AA AE Q902 30017863 TR BF199 AA AD Q903 30017862 TR BF370 AA AE Q904 30003768 TR BD139 AB AF ...

Page 10: ...IODE UF5402 3A 200V 150A AB AF D812 30001329 DIODE 1N4007 1A 1000V 30A AA AB D813 30006691 DIODE ZENER 3 3V AA AA D814 30001318 DIODE BA159 1A 800V 20A AA AB REF No PARTS DESCRIPTION SN CODE EX CODE D815 30001318 DIODE BA159 1A 800V 20A AA AB D818 30001318 DIODE BA159 1A 800V 20A AA AB D819 30001285 DIODE 1N4148 SMD AA AB D820 30001285 DIODE 1N4148 SMD AA AB D821 30001285 DIODE 1N4148 SMD AA AB D8...

Page 11: ...TE BEAT 805 BLM21A601S AA AD L803 30001992 FIXED COIL 10UH Q65 K A AA AB L805 30018078 LINE FILTER SAFE 2X22MH AK37 AC AK L951 30001979 FIXED COIL 1UH Q45 M A AA AB CERAMIC FILTERS Z400 30001692 FILTER SAW OFWK3953M AH AV Z401 30012545 FILTER SAW K9656M AG AR TRANSFORMERS REF No PARTS DESCRIPTION SN CODE EX CODE TR100 30006743 TRF HORIZONTAL DRIVER 15AK17 17 AC AH TR101 30017521 TRF FBT SAFESINGLE...

Page 12: ...SMD 100NF 16V K R 0603 AA AB C428 30000100 CAP MKT 330NF 63V J AA AD C428 30022244 CAP SMD 100PF 50V J 402 AA AA REF No PARTS DESCRIPTION SN CODE EX CODE C429 30000295 CAP CER 100NF 50V Z F AA AB C430 30000295 CAP CER 100NF 50V Z F AA AB C430 30012581 CAP SMD 1NF 50V K R 0603 AA AB C431 30000100 CAP MKT 330NF 63V J AA AD C432 30000383 CAP EL 2200UF 25V M AA AC C432 30022338 CAP SMD 4 7NF 50V J 402...

Page 13: ...4 CAP SMD 100NF 16V K R 0603 AA AB C740 30016654 CAP SMD 100NF 16V K R 0603 AA AB REF No PARTS DESCRIPTION SN CODE EX CODE C742 30016654 CAP SMD 100NF 16V K R 0603 AA AB C744 30016654 CAP SMD 100NF 16V K R 0603 AA AB C745 30016654 CAP SMD 100NF 16V K R 0603 AA AB C747 30016654 CAP SMD 100NF 16V K R 0603 AA AB C748 30016654 CAP SMD 100NF 16V K R 0603 AA AB C749 30016654 CAP SMD 100NF 16V K R 0603 A...

Page 14: ...CAP MKT 10NF 63V J AA AB C910 30000104 CAP MKT 4 7NF 100V J AA AB C911 30000104 CAP MKT 4 7NF 100V J AA AB C912 30000131 CAP MKP SAFE 100NF 250V J AA AB C914 30000388 CAP EL 33UF 160V M AB AF REF No PARTS DESCRIPTION SN CODE EX CODE C915 30000075 CAP MKT 100NF 250V K DC AA AD C917 30000295 CAP CER 100NF 50V Z F AA AB C918 30000352 CAP EL 100UF 16V M AA AB C925 30000191 CAP CER 100PF 50V J SL AA AB...

Page 15: ...R J 0402 AA AA REF No PARTS DESCRIPTION SN CODE EX CODE R422 30012677 RES SMD 1 16W 3 3K J 0603 AA AA R422 30022052 RES SMD 1 16W 200R J 0402 AA AA R423 30022118 RES SMD 1 16W 75R J 0402 AA AA R424 30012657 RES SMD 1 16W 1K J 0603 AA AB R424 30022118 RES SMD 1 16W 75R J 0402 AA AA R425 30000459 RES CF 1 4W 100R J AA AB R425 30021988 RES SMD 1 16W 1 8K J 0402 AA AA R426 30012510 RES SMD 1 16W 100R ...

Page 16: ...9K J 0402 AA AA R835 30000475 RES SMD 1 10W 10K J 0805 AA AB REF No PARTS DESCRIPTION SN CODE EX CODE R704 30022085 RES SMD 1 16W 33R J 0402 AA AA R705 30022056 RES SMD 1 16W 220R J 0402 AA AA R706 30012650 RES SMD 1 16W 15K J 0603 AA AB R707 30012650 RES SMD 1 16W 15K J 0603 AA AB R708 30012708 RES SMD 1 16W 68K J 0603 AA AA R709 30012708 RES SMD 1 16W 68K J 0603 AA AA R710 30022118 RES SMD 1 16W...

Page 17: ...16W 1K J 0402 AA AA R836 30000664 RES SMD 1 10W 3 3K J 0805 AA AB R836 30022042 RES SMD 1 16W 1K J 0402 AA AA R837 30000503 RES SMD 1 10W 12K J 0805 AA AB R837 30022040 RES SMD 1 16W 18K J 0402 AA AA R838 30000517 RES SMD 1 10W 15R J 0805 AA AB R838 30022057 RES SMD 1 16W 22K J 0402 AA AA R839 30012641 RES SMD 1 16W 10K J 0603 AA AB R840 30012641 RES SMD 1 16W 10K J 0603 AA AB R841 30012657 RES SM...

Page 18: ...30001829 CONN HEADER 2P 2 5MM TOP WHT SD AA AB PL107 30001792 CONN HEADER 2P 7 5MM TOP WHT AA AC PL107 30014711 CNAS 2P 250 W DC AB AF PL108 35000135 TEST PIN 1 1MM AA AB PL108 30001792 CONN HEADER 2P 7 5MM TOP WHT AA AC PL203 30010921 DOUBLE DECK SCART SOCKET AD AM PL401 30018410 CONN HEADER 35P 3 0MM SIDE DR AC AK PL402 30018410 CONN HEADER 35P 3 0MM SIDE DR AC AK PL404 30001844 CONN HEADER 3P 2...

Page 19: ... www vestelservice com 2 Select Technical Support 3 Login 101278 4 Password SHPII278 By this access you can consult the latest schematic diagram or request the Parts Listing of a concrete Production Date Serial Number By this way it can be also consulted the issued Technical Reports Service Bulletins ...

Page 20: ...cal photocopying recording or otherwise without prior written permission of the publisher Technical information and Production Vestel Electronik AS Technical information re issued SHARP ELECTRONICA ESPAÑA S A Service Manual Group Engineering Dept Polígono Industrial Can Sant Joan 08190 Sant Cugat del Vallès Barcelona Spain Think Ecology please use RECYCLED PAPER ...

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