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Repair tips

Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair

Make	Model	Problem	Solution	Added	Date

Found: 711
Sharp	CV2121G	No chan change	Front controls faulty	plamensl	14-09-2004
Sharp	CV2123	St/by only & no relay operation	Hairline crack next to pin 42 of micro - hidden under paint	plamensl	14-09-2004
Sharp	CV2123H	Low emission crt effect	R621 1R2 near LOPTx hi res causing low crt heater volts	plamensl	14-09-2004
Sharp	CV2123H	Low sound with crackle & dist	Adj top coil on IF module	plamensl	14-09-2004
Sharp	CV2123H	No pic - no crt heaters	R621 dry joints & check diodes in vicinity	plamensl	14-09-2004
Sharp	CV2123H	St/by only - st/by relay operates when asked	STR41090 chip	plamensl	14-09-2004
Sharp	CV2123H	TRIPS relay clicks on off with StBy command	Check for s/c in line stage D/J around STR41090 IF STILL TRIPS REPLACE STR41090	plamensl	14-09-2004
Sharp	CV2123H	TUBE LOOKS POOR ( THIS IS NORMAL!!!! )	R621 1R2 HEATER SUPPLY HIGH	plamensl	14-09-2004
Sharp	CV2123H 7PSR1	Trips at sw on	Dry joints psu or STR41090 chopper chip - test by powering up with reduced mains - if set does not start the chip is faulty	plamensl	14-09-2004
Sharp	CV2131H	Dead - no line drive	Replace FOP IC X0640CE with equiv. LA7830 & 220mf cap. and the 4.7ohm safety feed res by LOPTx	plamensl	14-09-2004
Sharp	CV2131SC	Dead - led lights briefly at sw on	C723 3µ3 63v bipolar cap	plamensl	14-09-2004
Sharp	CV2131SC	Flyback lines at top of pic	C502 220µ 25v	plamensl	14-09-2004
Sharp	CV2133H	dead set standby light comes on and dies away	C723 4µ7 non pol cap	plamensl	14-09-2004
Sharp	CV2133H	Field collapse	IC801 IX0712CENI or M51390ASP jungle chip	plamensl	14-09-2004
Sharp	CV2133H	Int blank white raster & no sound	T207 int earthing short - fault will come & go whilst squeezing it	plamensl	14-09-2004
Sharp	CV2133H	Int white picture + no audio	Check each coil in IF strip for int short to screening can	plamensl	14-09-2004
Sharp	CV2133H	No sync	Q1603 on scart panel - 2SA950 fitted - use 2SA966 for greater reliability	plamensl	14-09-2004
Sharp	CV2133H	NO SYNC	Q1603 ON SCART PCB	plamensl	14-09-2004
Sharp	CV2133H	Txt lines on top 2" of screen	C502 22µ 25v near fop chip	plamensl	14-09-2004
Sharp	CV2133H 8P-SR	Dead - brief red LED at sw on	Check caps C714 10µ 100v, C716 47µ 63v & C723 3µ3 50v non pol on psu pri	plamensl	14-09-2004

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