TV Repair: Common Faults and Solutions.

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Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	TC250	Replacement part different	X-346-011-0 is too small in diameter. the other idler part #x-027-003-0 looks more like correct diameter. -hq comments: tc-250 unit is approx. 15 years old. similar model istc-350 and tc-102. p/n for its idler is x-002-701-92 and currentlyavailable.
SONY	STRVX6	Defective ic503	This unit erratically displayed two or three led segments.we found the drive ic to be defective.
SONY	STRVX6	Repeated inverter failure	Unit had been serviced twice before for inverter transistorfailure. first time, it was modified by moving q801 regulator transistor.second time, unit was cooked 2 weeks. before being sent back to customer,where it failed again after 3 hours of operatio
SONY	SPP11	Dialing pulse does not go through	Intermittently when dialing out gets a busy signal and thenumber being called rings only once and then dead line. -hq comments: although no history of such a problem, there are twothings i can think of for an incomplete call. 1) the dialing pulse width
SONY	RT66	Shorted d1314	When depressing the pause switch in play mode, the unit goesinto ams mode and stops operation (head goes down), if there is a signalplayed back.
SONY	PSX600	Out of adjustment	1) tonearm does not move in auto start mode, but t.t. startsturning. 2) tonearm moves manually, but sluggishly.
SONY	PSX45	Ic cx193 fails	This unit has repeated failure of the servo ic, cx193. alloutboard parts have been carefully checked and the unit operatescorrectly when a new ic is installed. all d.c. and waveform measurementsare within 5%. i am puzzled as to why these chips only wo
SONY	PSX6	Leaky d410	After 5 minutes the repeat led would partially come on and the repeat function would not work. we found d410 in the repeat flip flop ckt leaky.
SONY	PCMF1	Leaky l519 and defective ic505	Recording section worked fine but the playback section didnot function.
SONY	CDP101	Defective laser	Unit will not read toc (ejects after attempting to focus3 times). defective laser diode - all voltages to top correct - ld onsignal good.
SONY	CDP101	Defective q601	Initially there was no system control function due todefective crystal. after replacing crystal unit worked ok for a fewminutes but shut down when jarred. traced problem to defective q601 whichshorted because of misaligned rubber insulator. i think th
SONY	CDP101	Sled motor locked up	Customer's complaint was stays in scan. verified problem -visual inspection showed sled motor was locked up. loosened screws onsled ass'y and motor turned freely.
SONY	CDP101	Out of adjustment	Dealer's complaint was won't accept disc. verified problemon bench. focus operation checked ok, unit would not read toc due to nogfs signal.
SONY	CDP101	Out of adjustment	Would not read toc. gfs stays low.
SONY	CDP101	Defective ic204 and open r390 and r391	Unit would not function at all.
SONY	BM600	Defective gear	Forward will not engage because gear would slip.
SONY	XR25	Shorted capacitor	Not audio.
SONY	XM120	Connection needs to be made	Distributor reports that dealers have complained that thexr-75 will not turn on the xm-120 amp even with both units hooked topurple and blue remote turn on wires hooked together.
SONY	WM2	Defective ph501 and led	Motor continues to run after stop button is depressed. doesn't happen all the time.
SONY	HMK3030	Broken spindle	When the lp spindle on this model (which was made of plastic)was broken, a small piece lodge to the auto mechanism preventing the tableto turn.