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Sharp 20F640 Service Manual
Also see for 20F640 XFlat: Operation manual
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SHARP CORPORATION This document has been published to be used for aftersales service only.The contents are subject to change without notice.In the interests of user-safety (Required by safety regulations in some countries ) the set should be restored to itsoriginal condition and only parts identical to those specified should be used.COLOR TELEVISIONChassis No. GA-2Page» ELECTRICAL SPECIFICATIONS ......................................................................................................... 1» IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................. 2» LOCATION OF USER'S CONTROL ..................................................................................................... 4» INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................5» SERVICE MODE ................................................................................................................................... 6» ADJUSTMENT METHOD ..................................................................................................................... 7» CHASSIS LAYOUT ............................................................................................................................. 11» BLOCK DIAGRAM .............................................................................................................................. 12» DESCRIPTION OF SCHEMATIC DIAGRAM ...................................................................................... 17» WAVEFORMS ..................................................................................................................................... 18» SCHEMATIC DIAGRAMS ................................................................................................................... 19» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 24» REPLACEMENT PARTS LIST ............................................................................................................ 27» PACKING OF THE SET ...................................................................................................................... 34CONTENTSSPEAKERSIZE ................................................................... 5 x 12 cm, 2pcsVOICE COIL IMPEDANCE ............................ 16 ohm at 400 HzANTENNA INPUT IMPEDANCEVHF/UHF ..................................................... 75 ohm UnbalancedTUNING RANGESVHF-Channels ............................................................... 2 thru 13UHF-Channels ............................................................ 14 thru 69CATV Channels ........................................................... 1 thru 125(EIA, Channel Plan U.S.A.)POWER INPUT ..................................................... AC 120 V, 60 HzPOWER RATING .................................................................... 90WPICTURE SIZE .......................................... 1,239 cm2 (192sq inch)CONVERGENCE ............................................................. MagneticSWEEP DEFLECTION .................................................... MagneticFOCUS ................................................................................. Uni-BiINTERMEDIATE FREQUENCIESPicture IF Carrier Frequency ..................................... 45.75 MHzSound IF Carrier Frequency ...................................... 41.25 MHzColor Sub-Carrier Frequency .................................... 42.17 MHz(Nominal)AUDIO POWEROUTPUT RATING ........................................ 2.5 W(RMS) x 2pcsSpecifications are subject to change withoutprior notice.ELECTRICAL SPECIFICATIONSMODELSSERVICE MANUAL20F640 |
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