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Sony Repair Tips




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Search: sony
Results: 20072
Make Model Symptom Problem Solution By
SONY KP5040
Incorrect mechanical function, use of loctite When unit was turned on the mirror door would extend about2/3 of the way out and start clicking. the motor would continue to runand not shut off. disassembly revealed the retaining nut on the driveshaft had worked loose allowing the left hand side door
SONY KV2647R
No picture, open r057 and prescaler, R057 resistor open (mf board). no problem found in reg.circuit. solder splash on feed thru terminal of prescaler.
SONY KV2645RS
Tuning would not lock, replaced s2262 Tv would continuously scan through all channels. foundchannel up button closed.
SONY KV2645R
Dark picture, replaced r-751 Dark picture like weak crt. found r751 changed value.
SONY KV2601
Part number missing Servicer has kv-2601 with spark gap on c board shorted -schematic designation sg. the part number was omitted from the servicemanual of all the above listed models. -hq comments: the spark gap in question is not available as a separatepart. it comes w
SONY KV1945RS
Picture distortion, replaced c544 Severe pincushion problem, pin control has no control. baseof q503 was negative instead of 2v. found signal on base has a lot ofspikes, which could come only from one point, the flyback. c544 was opencausing no filtering.
SONY KV1945R
No picture, replaced shorted q006 and q008 on md board This set had no vc voltage and band selection voltages werewrong at tuner.
SONY KV1945R
Shut down, trimmed r563 This unit intermittently shuts off by itself.
SONY KV1913
Picture distortion These two units came in with high brightness with retracelines. found r721 open.
SONY KV1543R
Intermittent remote operation, replaced c005 Remote commander operative only about 10% of time, mostfunctions completely inoperative. with scope probe at tp 52 m-2 boardabout 5vpp random noise present and remote control signal distortedwhen actuated.
SONY KP5000
Picture distortion, loose screw on hor drive trans. q5104 Intermittent horizontal sweep problem causes sweep to collapseand burn a vertical line in the three picture tubes.
SONY KV2648R
Snow picture, replaced prescaler Picture would go to snow after about 5 minutes after turn-on.set was ok when cold. 12 volt line would drop to 7.5v and voltage atprescaler would drop to 1.5v.
SONY KV2648R
High pitch noise The unit makes a high pitch sound like a flyback with loosecore. replacing pot transformer did help a little but still audible.wedging the transformer almost reduce noise but awkward solution.
SONY KV2647R
Tuning drift, resolder r053 Upon changing channels a good video will come on for a momentbut will drift off to barely viewable negative picture.
SONY KV2647R
No control of brightness, broken foil on crt board No control of brightness. picture would start at normallevel and slowly get dimmer with retrace lines, then flash to normalpicture level again. no g2 voltage on pin 12 of crt board.
SONY KV2647R
Picture distortion, replace c549, c550 and c554 Slight pie crusting and marginal horizontal sync.
SONY KV2645R
No remote operation, repaired crack on n board Unable to control operation with remote. found hairlinebreak on n board.
SONY KV2643R
Under scanned picture, r533 value changed, replaced Picture under scanned horizontally and vertically. foundresistor r533 changed value, should read 1.2Ω, read 14Ω.
SONY KV2602
Vertical foldover, replaced ic502 Vertical foldover at bottom. all voltages around ic501 andic502 checked good except pin 5 of ic502 which was very low, waveformswere distorted.
SONY KV2145R
No video/sound, replaced prescaler No video - no sound.