TV Repair: Common Faults and Solutions.

Search:
Results: 87420

Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem
SONY	KV20XBR	Horiz and power supply circuits	No raster, no sound. sleep light comes on at power on, andstayed on until power off. power supply (ga and gb boards) not function-ing properly (no output osc. running off freq.).
SONY	SLHF900	Tuner locks up	After several (3-4) hours of use, tuner locked up, i.e.channel change impossible.
SONY	SLHF900	Shutdown during play	Auto stop during play.
SONY	KV25XBR	Dead	Set would shut down after coming on.
SONY	KV2680R	V jitter with copy guard tape, change r-854 to 390 ohm	This unit had dark picture and vertical jitter on copy guardtapes played on a vhs vcr.
SONY	FD2A	No focus, resoldered c806	Picture out of focus, unable to adjust, traced problem toc806. found one side of filter capacitor not soldered.
SONY	CDP70	Unit would not play the disc	Unit would focus but would not read toc. te test point showed erratic waveform but grounding ic 102 pin 13 showed good traverse waveform. pressing on pcb near ic102 would cause proper operation.
SONY	KPR36XBR	No picture or sound, replaced d-603	No pix, no sound. sleep led turns on and off when powerswitch operated.
SONY	XR44	No sound when playing tape	Radio operation ok but tape muted. also, inhibited screendisplay of direction, metal, and n.r. during tape operation.
SONY	WMF80	No sound out of unit both on radio and tape	Graphic equalizer unit is not making contact with main boardthru cn302. ribbon is just laying inside unit without being into contactsof cn302.
SONY	KV8100	Missing p/n for neon lamp	Need p/n for neon lamp used for channel indicationnl2201-2214. -hq comments: kv-1546 has the same neon drive ic. according to s/m ofkv-1546, p/n for nl is 1-519-154-00. also, we are reporting this matterto tokyo.
SONY	CCDV8	Intermittent video (snowy) on self record only	Looks like clogged heads on self record only. pb anypre-recorded tape is good. during record mode intermittent ic101 on vi-6board causes video to snow out.
SONY	TAF222ESII	Units go into protection shutdown with polk and ads speakers	When connecting some spearkers to amps (specifically polk sda-2a or sda-sr52, or ads880ii), unit will trip protection circuitry evenwhen running at moderate sound levels.
SONY	TSM JIG	Need rf sweep cable for evs-700 svc	S/m does not show any p/nwithout rf sweep cable. -hq comments: the correct p/n is j-6080-843-5. i am sending you onepiece. a s/b will be published shortly including all cable p/n
SONY	SLHF600	Video head disc substitution	P/n -178a (dsr50-r-3 heads) subs to -227a (dsr-63-r) whichlists model as sl-hf300 (2 head machine). -hq comments: model listed for -227a is incorrect (hf300). kcp willchange model to read sl-hf600. please order using this p/n.
SONY	PTB500	Low light output	Servicer complained that ptb-500 has a lower light outputthan ptb-100. -hq comments: specs are the same for both. as you related later on thetelephone, the unit can be operated on varied line voltages by a selectorlocated on the back of the unit. the
SONY	XR75	Intermittent/slow/no eject	When the tray rises to eject, the ear with the brass rollergets bent over further and further until it starts to bind. this causesejection to become slower and more difficult.
SONY	STRAV260	Output shut down	Unit would shut down at about #7 on vol setting when cold and1-2 when hot. the output chip would get very hot. the sp output lines toground read 15k.
SONY	TCWR930	Hum	Complaint of hum noise from b deck when recording both decks simultaneously.
SONY	STRVX550	Intermittent fm	Fm would fade, become static or dissappear. had turntableconnected and would exhibit same symptom. several repairs had been made.