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Sony Repair Tips




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Search: sony
Results: 20100
Make Model Symptom Problem Solution By
SONY KV2647RX
Jail bars, add ground wire Jail bars in picture. this is the 2nd 2647rx customer hashad. customer claimed jail bars on this unit took 2 weeks to develop.tried tuner, prescaler, d250 all zero effect.
SONY KV2647RX
Picture distortion, replace r557 When set was first turned on, picture lacked about 4 inchesof vert sweep at bottom and slight compression at top. after about 20seconds, picture and sould would go out. inspection revealed the 15vline to the 12v regulator was only 9vdc. the other 15v
SONY KV1954R
Need p/n for uhl switches, part of rv001 1-228-943-00 I need the p/n for the u-h-l switches on m-2 board. -hq comments: the switches in question are part of rv001 volume block,preset (p/n 1-228-943-00). the whole block has to be replaced.
SONY KX2501A
Picture fade in and out, replaced q1320 When set would get warm, the video information would fade inand out very slowly. by keeping q320 turned off, the video would notfade. everytime the video started to fade, the base of q320 would go lowand it would turn on. found q1302 on bd board was l
SONY KV2680R
No sound, replace ic-1106 on x board This unit had no sound. when off station, a rushing soundwas present, however, when receiving a station the audio was completelymuted. we found ic1106 to be defective.
SONY KV2675R
Aft osc, cold solder on aft coil Channel would oscillate in and out of frequency about 1/2cycle per second (vc voltage was varying at the same rate).
SONY KV2670R
Dead, replaced crt, h out and r-608 The set went dead and smoke rolled out the back. we foundr608 to be the cause of the smoke. furthermore, q504 was shorted as wasthe crt. the strange part of this failure is that both fuses were intact.
SONY KV2649RX
Immediate shut down, replaced hvr block Set would come on and immediately shut off.
SONY KV2649RX
Dead, replaced h out transistor Set came in dead. found horizontal output shorted.
SONY KX2501
Bullets in picture, grounded crt pin 10 The unit had bullets on the screen even with no video input.it appeared to be caused by some kind of corona discharge. furtherinvestigation revealed pin 10 on the crt to have a charge. this pin isnot connected to anything on the crt board. grounding t
SONY KV1948R
Picture distortion, replace c654 The picture was pulled in on all sides and was snowy. wefound all b+ power supplys to be low. the 135v power supply was about 103v. regula-tion was poor. increasing the line voltage to 140vac resulted in normaloperation. we found c654 which is across t651/pot t
SONY KV1941R
Video drift, leaky d2213 On low channels video would drift.
SONY KP5040
Incorrect mechanical operation, adjusted gear ass'yg New arm assembly was installed. door would not close all theway on right side. found large gear off one tooth on gear strap inassembly.
SONY KP5040
Incorrect mechanical operation, replaced arm ass'y Mirror would not extend to complete open position.
SONY KP5040
Buzz in sound, adj helical filter and replaced aft with r Buzz on some cable channels. this complaint was pending sincedec. two trips were made to the customer's home. on the first trip iadjusted the helical filter which removed most of the buzz.
SONY FD30A
Poor vhf reception, ant contact plate a missing The reception on vhf low channel was very poor.
SONY KX2501
Mechanical popping noise, tighten cabinet screws The customer said that the set made loud popping noises evenwhen turned off. the sounds were caused by the cabinet contractingduring temp changes. we found the screws mounting the mask to the maincabinet loose by 2-3 turns each.
SONY KX2501
Immediate shut down, replaced r1602 Unit would go into shut down within 2 minutes of turn on.found r1602 open. replaced with another 24Ω resistor and performedmanual check for shut down circuit.
SONY KV2649RX
Dark picture, add cap to c546 When viewing scrambled channels using the jerrold cableconvertor box, the picture is very dark with smeared reds.
SONY KV2648R
Audio noise in matrix, resistor change Whistle in matrix audio only. the countermeasure given to meto resolve this problem worked.