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Sony Repair Tips




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Search: sony
Results: 20072
Make Model Symptom Problem Solution By
SONY KV2145R
Dark picture, replaced brt control Unit loses brightness (goes black) intermittently. voltageok, tp49 goes low whenever problem occurred. found brightness controlshorting to its case.
SONY KV1946R
Dead, fbt Flyback arc over.
SONY KV1946R
Sound noise, replace t206 This unit had a background hiss in the sound. adjusting t206 did no good. found t206 had the incorrect transformer installed.p/n 1-403-360-13 was marked on the outside.
SONY KV1913
Shut down At turn on, set would shut down after a few minutes to a fewhours.
SONY KV1913
No sound Sound goes on and off, cooling c226 would confirm problem.
SONY KV1746R
Shut down, installed c547 as per t/n This unit would intermittently go into hv shutdown.
SONY KV2644R
Incorrect tuning, replaced ic2002 Set would stay in address position a at all times. i foundwhen i turned channel set switch on and programmed set, it would work ok.but if i shut the set off, and turned it back on again, it would come onin position a and could not be addressed again.
SONY KV2643R
No operation, replaced c539, c805 and r812 Set inoperative. found r812 open and c805 leaky. replacedthem and picture displayed vertical bar (approx. 5 inches) on left side,r812 was running warm. found c539 open.
SONY KV1945RS
Poor remote operation, replaced ic1, cx-786 in commander Poor sensitivity with remote approx. 6 feet.
SONY KV1945RS
Shut down, selected r563 This unit intermittently shuts off, sometimes twice a week,sometimes once. voltage on pin 12 was 5.3v making it too near thethreshold level of 5.6v, changing r563 to satisfy the procedure in manualresults in a 15k resistor which was half of the original
SONY KV1945R
No color, replaced ic501 No color. found no pulse at pin 20 of ic301. traced theproblem to pin 22 of ic501 where i found no sync out.
SONY KV1217
Dead, replaced q602 No sound, no picture, channel indicator stays in one position,tuning and band indicators are dim. found regulator transistor q602leaky, and both audio output transistors q205 and q206 shorted also r232open.
SONY KV2647R
Snow picture, resolder r053 Set displayed snow on all channels. i found r053 on mf boardimproperly soldered.
SONY KV2647R
Set would not turn on/off by remote, ic-101 Set would not turn on/off.
SONY KV2645RS
Color distortion, replaced r751 Bleeding color (red). found r751/470kΩ resistor changedvalue.
SONY KV2643R
Raster pulsating, replaced r609 Picture and raster pulsating. the 135v line exhibited samepulsation.
SONY KV2145R
No picture, fbt Set kept shorting out the horizontal output transistor.
SONY KV2101
Picture distortion Set had light vertical bands in picture. they started on the left and became less bright as you moved to the right. horizontal output waveform was affected as well.
SONY KV1946R
Picture distortion, replaced c524 Set would go into vertical bounce after warm-up.
SONY KV1945RS
Snow picture, replaced prescaler Snow on all channels. no output from prescaler.