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Sony Repair Tips




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Search: sony
Results: 20100
Make Model Symptom Problem Solution By
SONY KV2647R
Black line on the screen, replace v out ic502 After set would warm up a black line about 3/8 inch (veryfaint) would appear in the center of screen.
SONY KV2647R
No operation, h out q-502 No sound, no picture. found horizontal output shorted.
SONY KV2643R
Vertical bars on the screen, replaced c539 Vertical bars on left side of screen. almost like ringing.horizontal spike riding on b+.
SONY KV2602
Vertical jitter, replaced c511 After 5 to 10 minutes on, vertical jitter is noticed andbecomes increasingly severe. sometimes a brighter line is apparent acrosscenter of screen (slight folding). found c511 2.2ufd at 20v tantalumcapacitor very slightly leaky (100k).
SONY KV1943R
Intermittent sound, replaced t207 Sound intermittently goes dead. troubleshooting indicates that the sound is not passing through the if section. isolated problem to t207.
SONY KV1923
Picture noise Retrace line.
SONY KV1923
Dead Dead set. found defective the following parts f602, q901,d514, d502. after replacing defective parts it was found r560 and r561were getting hot. traced cause to an open contact between circuit boardand l502 the hlc coil.
SONY KV1914
No uhf No uhf. found b-e of q103 shorted.
SONY KV1913
Sound only on channel 5 Intermittent or garbled sound only on channel 5. because theproblem was only on channel 5 the audio ic and outputs were ruled out.monitoring q107 it was found to be muting on and off when on channel 5.nl2204 was then replaced and the problem was cured.
SONY KV1912
Channel no change Cannot change channels, push buttons will not light whenselected. found 35v missing at pin 10 of ic033.
SONY KV1746R
Dead, replaced hdt No raster - no high voltage. servicer confused with hi-volt shut down. virtually lost scope pattern at secondary of horizontal drive transformer.
SONY KV1722
Part reliability Sg-613 supplied was installed by service station. partfailed immediately. cones on part are not correct for use in sonytelevision. construction of part is different in appearance to partssupplied by kansas city. code on part: ok-h. -hq comments: in
SONY KV1545RS
Volume range too limitted, change r102 to 100k Sound is either too low or too high. customer states thathe thinks the volume should move from low to high in a slower manner,rather than jump from low to high. -hq comments: we can satisfy the customer by changing r102 resistorvalue from 10k to 100k.
SONY KV1515
No sound Failure of sound section of ic201 due to static discharge inlow humidity environments. have scrapped volume slider decorative buttonto remove excess silver plating. no help. -hq comments: we are sending you a countermeasure proposal involvingapplicati
SONY KV1512
Picture distortion Slight fold-over in center of screen. c406 apparently driedout over the years. located off emitter of abl q4091.
SONY VTX1000R
No power on No power-on switching using front panel switch (s802) orremote. customer claimed power would come on intermittently and thatother functions such as video switching, antenna switching would workerratically (this was not verified). when s802 is depressed
SONY KX2501
No sync, replaced q317 and q318 both should be 2sa1175 Unit had no vertical nor horizontal sync. according toservice manual, q317 sync sep-1 should be 2sc2785 and q318 sync sep-2,should be 2sa1175.
SONY KV9000
Vertical distortion without video Vertical collapse under no signal condition. set appeared tohave proper vertical waveforms when receiving off the air broadcast, butwhen no station present only a thin line, this indicated oscillatorfailure or no self-sustaining ability.
SONY KV5000
No operation with ac Set would not work on ac. all dc checks which we could thinkwere performed. power supply simply would not start. found waveform 27would appear for just an instant and die away. transformer t606 checkedgood so c611 must be culprit.
SONY KV3000R
Door jamming Left side door was found to be inoperative when inspected bydealer. found mounting bolts loose on motor assembly. motor ass'ydrive gear could not engage in door drive track. bold heads had pulledinto soft wood due to shipping and handling jolt.