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Sony Repair Tips




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Search: sony
Results: 20072
Make Model Symptom Problem Solution By
SONY KV1945R
Sound and picture distortion, replaced ic005 Volume and picture levels go down. one could adjust volumeand picture levels in up mode, but a few seconds later, the levels wouldgo down to minimum.
SONY KV1945R
Intermittent on/off, leaky d026 Intermittent on/off. last channel memory is off. when turnmaster switch on, tv comes on intermittently. ic006 pin 11 is low (2.4v)should be 5.1v. d026 zener didoe was leaky.
SONY KV1913
Vcr pb picture distortion Viewing tv normally, off channel no problem set looks good,however, when vcr played through set, top of picture would curve to rightlike flag waving. vhs system is what customer has and complained on.however, distributor put betamax through unit and sam
SONY KV1221R
No on/off function, replaced rl001 Unit would not shut down manually or on remote. whenattempting to turn off set with manual switch or remote, the sound wouldmute, but the raster would remain. tapped on the case of relay rl001.power immediately went off. found rl001 was hanging up due
SONY KV1216
Picture pulling horizontally, replaced ic201 Picture pulling horizontally on some channels. problemtraced to output of sync separator, q301, where horizontal sync amplitudewas lower than normal. observing composite video at pin 14 of ic201showed horizontal sync pulse to be just slightly higher th
SONY KP7220
Picture distortion Set had about 8 inch overscan. found set-up cord was18 inches too long.
SONY KP7220
Insufficient vert height, replaced c5521 Insufficient vertical height on all three crts: about 3inches short top and bottom of the screen. found vertical sawtooth atbase of q5510 (on da board) reading 2.4vpp, should have read 3vpp.
SONY KV2647R
Retrace lines and raster pulsade, hairline crack on c board Raster was pulsating at a steady rate about 3 times persecond, retrace lines were visible, excessive brightness and video fading.found a hairline crack on c board g2 line.
SONY KV2647R
Vertical foldover, c508 Set has severe vertical foldover on top of screen.
SONY KV2645RS
No operation, replaced q203, d202 and r533 No raster, no sound and channel indicator does not light up.
SONY KV2645R
No picture, replaced q006-8 and d012 No reception on all channels. found no vc, no 12v at thetuner. all displays and addressing ok. found q006-8 transistors shortedand d012 defective.
SONY KV2645R
Dead, replaced c019 Set would not turn on. found c019 shorted.
SONY KV2145R
No sound, broken lead on output transformer No sound. inspection revealed broken wire from secondaryof sound output transformer to solder lug, right at the lug.
SONY KV2145R
No vhf, bt981 prescaler No vhf low and high band, very intermittent.
SONY KV1945R
Incorrect tuning function, replaced ic004 Only numbers 1 or 2 can be addressed on tv by hand unit.operation on channel selection manually is ok. i found pin 28 of ic004has 10vdc on it at all times. waveforms on pin 37 were normal but theamplitude of waveforms at pin 14 were very low with all n
SONY KV1914
No picture Unit would blank out approx. after 1/2 hour, sound stillnormal. by turning set off for a while and turning it back on, the unitwould again work for a shorter period of time and blank out. found thatby freezing vertical output ic unit would function nor
SONY KV1546R
Set would not turn off, replaced rl001 Set would not turn off when power switch pressed. brightnesslevel would drop but would not turn completely off - intermittent problem.
SONY KV1545RS
Short range remote operation, replaced d1 Customer complained of short range, approx. 12 feet.
SONY KV1543R
No tuning memory, replaced c047 Customer pulled ac plug from wall outlet during electricalstorms, had to reprogram tuner (lost its memory). c047 a 100pf capacitoron the write/erase line (pin 6 of ic034, cx761) defective allowing pinto remain high after ac disconnection.
SONY KV1221R
Snow picture, replaced c038 Every 2 weeks picture would go to snow and remain in onechannel position. tuning functions totally inoperative and manual channelselection would not work. volume up and down functions ok. clock osc.waveform wrong also voltage at q034 base 0v should be