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Sony Repair Tips




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Search: sony
Results: 20072
Make Model Symptom Problem Solution By
SONY KV2145R
Retrace lines on the screen, replace ic502 Set had 6 or 7 retrace lines at top of the screen. i foundthat by cooling ic502 the lines disappeared.
SONY KV2145R
Intermittent channel change by itself, q007 Intermittently self initiates rapid channel changing.
SONY KV1948R
Beat interference, normal Beat interference visible on the screen during low vhf bandoperation. the beat pattern is composed of individual dots such as onewould see from digital interference. it only shows up on a weak rabbitear signal. it is the second harmonic of the power s
SONY KV1913
Intermittent horiz. whistle This unit had a very intermittent horiz. whistle. we foundt502 to be vibrating.
SONY KV1710
Intermittent loss of picture Highly intermittent loss of picture and sound leaving onlygray raster. loss would be from seconds to hours with no patterndetectable.
SONY KV1515
No channel tuning Unable to tune channels 2 and 4, found vc drive transistorq101 leaky, unable to bring voltage lower than 9vdc.
SONY KV1207
Jail bars on the screen Very dark jail bar pattern on screen. bars were so dark that they blank picture where they were. found horizontal pulses onthe +12v line at pin 10 of ic301, and discovered leaky c323.
SONY KPR4600
No sound, replaced ic-3010 No sound, found switch voltage (4vdc) reading 1.5vdc onic3010.
SONY KP4600
Mis-convergence Extreme mis-convergence on left and right sides of the screen(for about ten inches).
SONY KX2501
Picture fades out when external audio plugged in, d1206 Picture fades out when external audio plugged in. r675 openon ga board, r02 burnt on u1 board, q1343 and r1409 open on bd board.replaced these parts. video would fade out when audio plugged to eitherext. input or multi-connector, measured 8.5 to 9.1 vd
SONY KX2501
Dead, replaced diode on "k" board Evp-1 ckt operational, shutting down pps. replaced open r675.unit produced raster. hooked up a vtx-1000r. unit smoked and went dead.r675 open again, q1343 open, r02 on u-1 board burned. replaced all parts.unit again functional. however it was found
SONY KX2501
Shut down, replaced q652 on "ga" board Either horiz. scan comes up and goes immediately to horiz.shutdown or does not come on at all. voltage on q108 relay drive base lowand relay will not activate when transistor completely shorted prior togoing bad would come up and shutdown within 3 secon
SONY KV2649R
Poor picture, adj vhf agc Poor picture on cable busy background.
SONY KV2648R
No picture, replaced q502 No picture, high pitch squeal.
SONY KV2648R
No picture, replaced fbt and q502 No high voltage. flyback shorted causing horiz. output tofail.
SONY KV2648R
Horizontal bars on the screen, replaced prescaler and tuner Horizontal bars on all channels.
SONY KV2648R
Squeal from power board, replaced t602 Squeal from power board. pressing on f board changes pitchof squeal. when pushing on board directly beneath pot squeal stops.
SONY KV2648R
No volume control, leaky q4025 The bar pattern would not extend across the screen.
SONY KV2647R
Picture fade after time, resolder on "c" board Video would begin to fade after 2 hours. wire to c board-12vdc to outputs had intermittent cold solder connection at trace next toc702, appeared to be thermal problem.
SONY KV2647R
Convergence change in hot condition, replace yoke After the set would warm up convergence would change. lowerright corner would start to misconverge and get worse the longer set wason.