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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: 917
Sony	AE1C KV2922U	Blank raster only when A1 advanced & no R/C	no 12V supply traced to Q603 a 2SB1357 o/c C to E this is in the standby switched 12V supply.	plamensl	14-09-2004
Sony	AE1C KVA2512U	Crackling sound & OSD flashes on/off	Check audio o/p chip joints IC251 & 261, 5v reg IC604 (under strut) & CV1101 on A1 board - a 39pF fixed cap will do in lieu	plamensl	14-09-2004
Sony	AE1C KVM2531	Col int	Replace sub carrier trimmer with 22pF fixed cap	plamensl	14-09-2004
Sony	AE1C KVM2531U	Bands across screen	Dry joints IC604	plamensl	14-09-2004
Sony	AE1C KVX2142U	Dead apart from LED flashing once every 12 secs	Only 7v from 12v reg/sw tr Q607. D618 5v6 zener leaky	plamensl	14-09-2004
Sony	AE1C KVX2532U	Squegging line freq or dead if left on too long	Q804 LOPTr s/c due to dist line wfrm - R822 1k in Q805 coll feed o/c	plamensl	14-09-2004
Sony	AE1C KVX2552U	Loud crackle int & pic goes off	Check dry joints IC604 & D612 located under strut	plamensl	14-09-2004
Sony	AE2	"Txt not available" message on screen & menu screens shifted to right	R38 750k or IC101 SDA5248-5C1 Txt dec chip pt no 8-759-166-41 on Txt pcb o/c	plamensl	14-09-2004
Sony	AE2	Chopper TR Q601 s/c ( BUZ91A ) f.e.t.	Check R604 ( 150K ) & R610 ( 180K )	plamensl	14-09-2004
Sony	AE2	Cuts out: goes into protection mode: RGB lights ed	D/J on IC1501 Field output IC	plamensl	14-09-2004
Sony	AE2	Dead - Q601 BUZ91A chopper s/c	Check R610 180k, R604 150k	plamensl	14-09-2004
Sony	AE2	FAILURE OF VERT OUT IC 1501	REPLACE TDA8179S WITH STV9379 8-759-192-71 , AND CHANGE C1506 1-130-777-00	plamensl	14-09-2004
Sony	AE2	Field non lin bands/lines across screen	IC561 CXD2018Q 48 pin sm chip faulty on panel M	plamensl	14-09-2004
Sony	AE2	Field rolling	IC501TDA2595/V9 pin 9 field pulse has noise superimposed on it - working at 60Hz - chip faulty - pt no 8-759-513-48	plamensl	14-09-2004
Sony	AE2	Front led flashing 13 times, frame problems	Replaced the frame IC TDA8179 with a STV9379, O/c 0.47ohm res pin 7 FBT neg 15 volt supply to the output chip.	plamensl	14-09-2004
Sony	AE2	Int cuts out & eventually reverts to st/by with LED flashing 13 times (field fault, X ray prot or excess current 135v rail)	Fault in excess current cct on board D where D620 int o/c 1N4148 used as replacement	plamensl	14-09-2004
Sony	AE2	Int goes to st/by	Dry joints R854 depriving field o/p supply & causing prot shutdown	plamensl	14-09-2004
Sony	AE2	Int pic blanking leaving OSD & dark green raster	Adj auto green cut off & adj grey scale using electronic screwdriver settings	plamensl	14-09-2004
Sony	AE2	LED display indicates set in protection mode	Disconnect protection line from micro if set comes on with small field EEPROM u/s	plamensl	14-09-2004
Sony	AE2	No col	Replaced TDA9145 dec chip IC301; TDA4660 chroma del line; Xtals X301/2	plamensl	14-09-2004

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