SHARP 28JF73E free download

File name sharp - GA20 - 28JF-73.pdf

28JF-73E SERVICE MANUAL SE0028JF73E00 Issued: 24th Sept. 2002 GA-20 CHASSIS PAL B/G, I / SECAM L/L', B/G, D/K SYSTEM COLOUR TELEVISION MODEL 28JF-73EES In the interests of user safety (required by safety regulations in some countries) the set should restored to its original condition and only parts identical to those specified should be used. CONTENTS ELECTRICAL SPECIFICATIONS ... 3 IMPORTANT SERVICING NOTES ... 4 CONTROLS & TERMINALS ... 5 ADJUSTMENT PROCEDURES ... 6 LED FLASHING CODES ... 12 PRINTED WIRING BOARDS ... 13 CHASSIS LAYOUT ... 20 ICs ADDITIONAL INFORMATION ... 22 SCHEMATIC DIAGRAMS ... 32 TROUBLESHOOTING TABLES ... 46 PARTS LISTING ... 49 PACKING OF THE SET & ACCESSORIES ... 58 SOURCE OF DOCUMENTATION ... 59 SHARP CORPORATION 1 This document has been published to be used for after sales service only. 28JF-73E SERVICE MANUAL UPDATE LOG SHEET Technical Report No. Technical Bulletin No. Cause / Solution Part No. Page No. Application Data /Serial 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. If you need more information, please refer to the Technical Report (Bulletin). 2 28JF-73E ELECTRICAL SPECIFICATIONS ·Power Input ... 220V-240 Volts AC 50Hz ·Power Consumption Normal Operation (Method IEC60107) ... 77W Stand-by Operation ... 3W ·Picture Intermediate frequency L' ... 33.9MHz L, B/G, D/K,I ... 38.9MHz ·Sound Carrier Trap L' ... 40.4MHz L, D/K ... 32.4MHz B/G ... 33.4MHz I ... 32.9MHz ·Adjacent Sound Carrier Trap L' ... 32.4MHz L, D/K, B/G ... 40.4MHz I ... 40.9MHz ·Adjacent Picture Carrier Trap L' ... 41.9MHz L, D/K, ... 30.9MHz B/G ... 31.9MHz ·Aerial Input Impedance VHF/UHF ... 75 ohm Unbalanced ·Tuning Ranges ... 45.75MHz thru 855.25 MHz VHF: IR A - J / S1 - S41 CH (Hiperband) UHF: I21 - I69 CH CATV Special Channels ·Audio Power Output Rating (MPO) / Impedance Internal Left Speaker ... 10W, 7 Internal Right Speaker ... 10W, 7 ·Speakers Left