TV Repair: Common Faults and Solutions.

Search:
Results: 87427

Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	SL2710	Intermittent cracking noise in audio	Unit would produce a cracking noise in the linear audio, thishappened on record only. looking at rf envelope you could see a gap be-tween (a) and (b) head. first thought it was tape path but this did notmake sense since playback was ok. traced problem
SONY	KV27SXR10	No power, replace hdt	Set would not come on. traced hor. osc to base of drivetransistor, found no b+ on transistor collector. primary side of drivetrnasformer opened.
SONY	HVC2200	Part number for ib-1 and ib-3 on (cc-16) board	P60 of manual shows two component packs, ib-1 and ib-3. weneed the part numbers for them. if not available, please explain the un-usual symbols shown connected to pins 5 and 6 of ib-1. thanks. -hq comments: the symbols at pins 5 and 6 of ib-1 are as
SONY	D3	D3 with no audio	No audio, no data out of pin no. 78 of ic-601, muting at pin19 of ic-601 is high (4.7v) should be low (0v). 9v was on base of q-807should have been 0v. therefore, muting audio, q-807 shorted base, emitterjunction.
SONY	CDPC5F	Flashing display	Flashing display.
SONY	D170	Sled motor offset procedure	Sled motor offset procedure: reversal of steps 5 and 6 makeadjustment much easier. to do as instructed has pulsating voltage and isvery difficult. -hq comments: have not been able to confirm your problem. the procedurefor this player is the same as a
SONY	FH150R	Wrong part number	Part number for ic-601, page ta28 in fh150r service manual forthe amp ta-177r is incorrect. the number given is 8-759-941-52. thecorrect number is 8-749-941-52. -hq comments: you are correct. a service bulletin has been written.
SONY	CCDV3	Components on (ss-70) board do not match schematic	There is a descrete component diode between r-328 and c-321 onthe (ss-70) board. the board revision numbered is a-16. does the diodebelong there? -hq comments: tokyo said the -14 boards had descrete diode but the -16boards should not have one.
SONY	HVL80D	Part availability for front housing	Underwater camera light turns on in transporting of unit.heat generated from light melts front housing. front housing part is notavailable (see s/b 22). the need for this part exists.
SONY	SL2410	Capstan speed and phase do not lock	In bii the picture has noise bars and the audio is unstable.tp11 on the (ss-13) board should have a 50% duty cycle. the waveform isdistorted with a series of negative pulses. the waveform at tp9 is ok.
SONY	EVC8U	Servo speeds up when pause is released	The capstan servo speeds up when pause is released thensettles to normal play.
SONY	PCM501	Static is head on audio out	Static or distortion is heard on the audio out.
SONY	CFSW501	10khz noise in high speed dubbing	A 10khz noise is heard only in high speed dubbing. all otherrecord, playback functions ok.
SONY	CPD1303	Flagging at top of screen when used with mac ii	After about one hour of operation, a flagging would start at top of screen when used with mac ii. this problem would not be seen with multiscan generator at macintosh ii frequency.
SONY	CPD1302	Flagging at top of screen when used with mac ii	After about one hour of operation, a flagging would start at top of screen when used with mac ii. this problem would not be seen with multiscan generator at macintosh ii frequency.
SONY	SPP150	Handset not receiving i.d. code	Handset not receiving i.d. code when placed on base unit.power led on base continues to flash, no communication between handset andbase. by hard-wiring from where i.d. transmission exits (mini-chargeterminals) to where i.d. code enters handset, proved i
SONY	SPP110	Handset not receiving i.d. code	Handset not receiving i.d. code when placed on base unit.power led on base continues to flash, no communication between handset andbase. by hard-wiring from where i.d. transmission exits (mini-chargeterminals) to where i.d. code enters handset, proved i
SONY	CDP350	Drawer closed but no focus search - then unit ejects disc	The drawer is closed but no focus search then the unit ejectsdisc.
SONY	STRAV1000	Switches do not work on front panel - remote ok	Power switch, tape mon. switch, eq defeat switch and othersnot working on front panel. remote is ok.
SONY	WMD6C	No playback	No playback. replaced dolby ic-101 and 201. still dead.found shorted c-138.