TV Repair: Common Faults and Solutions.

Search:
Results: 87416

Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	CDP101	Defective cnj36	With disc in place transport would close but would also rejectit immediately.
SONY	CDP101	Defective clock ckt	Intermittently when unit is first turned on disc motor wouldgo to full speed and stay there until power was turned off.
SONY	CDP101	Red wire cut	After 15 to 30 min, the display will indicate 71 (scan 77.77)in stop mode. these functions also do not operate time, clear, open/close, reset. moving the wires to display pcb effected problem.
SONY	BM600	Hold switch shorts pcb	When the safety hold switch is in its hold position,excessive current (almost short) is drawn from the batteries or externalpower power supply. foil shield (a) section 2-c is usually found to beshorting the solder connections of the function keypad assy.
SONY	WM4	Battery contacts touch ckt	When batteries were installed the holder for battery contactgave way. contacts came in contact with motor mounting plate, causingbatteries to short momentarily when unit was moved or touched causingmotor speed fluctuation and noise in head phone. tappi
SONY	XM1	Defective ic301 and ic102	The oscillator and its associated amp were shorted on thisunit. naturally there was no pwm output and the sound was very low anddistorted.
SONY	TCFX66	Loose chassis ground screw	User complained remote control (rm50) would only work after1-2 hour warm up.
SONY	TAYX7F	Volume increases	Dealer has 2 units out of box that would intermittently goto max volume after warm-up. this is a motorized volume control, and thedrive transistors for the motor have open circuits at the bases when thev/c is not being driven.
SONY	STRVX5	Time constant of protection relay too long	The speaker relay delayed an excessive amount of time beforeopening its contacts at turn off. this created an occasional pop throughthe speaker. we determined that the time constant-associated withc718/r743 was too long. reducing c718 from 220 uf to 1
SONY	PSX800	Tonearm would drop	When the tonearm was going down, before the stylus touched therecord, the muting relay clicked and the tonearm dropped.
SONY	PSX800	P/n error in s/b	Incorrect p/n listed page 54 of manual - p/n listed8-719-990-03 should be 8-719-910-03.
SONY	PSX600	Defective ic105 and r170	Zero balance drifts.
SONY	PSLX500	Defective socket	The copper sleeves in the socket of the p-mount were pushedall the way back into the tone arm. i have received several reports onthis problem.
SONY	PSFL7	Pins out of place	The copper sleeves in the p-mount socket were pushed backtoo far to make contact with the pins of the cartridge.
SONY	ICFD11W	Missing ground jumper	When frequency display button was pushed, frequency changedand the station was lost. this was the same problem as reported 2/16/82dk-2-1. it appeared to be a ground loop problem.
SONY	ICFC55W	Leaky c115	Segment on right channel was not showing proper number. allsegments lite up although a 1 should be shown. found c115 leaky.
SONY	ICFC20W	Defective q4 and q5	Either q4 was leaky or q5 was open. am on while switch infm position.
SONY	ICF200W	Open r36	When the unit is turned on after a couple of minutes a clicking noise is heard at the speaker.
SONY	CDP101	Out of alignment	High-frequency squeal through audio system with cdp-101 inany mode (stop/play/pause). checked completely and looked at output withoscilloscope. no high frequencies were audible.
SONY	CDP101	Loose right rail on sled	Loose right rail on sled. holder bracket missing.