Sony Repair Tips
Search: sony
Results: 20072
Results: 20072
Make | Model | Symptom | Problem | Solution | By |
---|---|---|---|---|---|
SONY |
KV2645R
|
Audio hiss noise, replaced ic401 | Left channel of matrixed side had distortion plus somebackground hiss, right side sounded good. disrotion showed up mainlyon music, and background noise only showed up when no voice or musiccame from tv. | ||
SONY |
KV1945R
|
Dead, replaced fbt and others | Set had a bad flyback causing multiple problems such asshorted horizontal output transistor and b+ regulator. | ||
SONY |
KV1913
|
Picture noise | This unit exhibited several faint vertical bars on the leftside and middle of raster. | ||
SONY |
KV1714
|
Picture noise | Retrace lines in the screen. found r721 and r722 reversedin circuit. | ||
SONY |
KV1545R
|
No manual or remote functions, replaced x002 | No manual or remote functions. no 12 volt on pin 12, ic004.clock frequency was correct but only 0.5vpp. voltage on pins 1 and 42 ofic004 was the same on both pins, 0.6v. | ||
SONY |
KV1543R
|
Channel indicators not lit, leakage between ic032/pin 1 & 20 | Unit would not come on with all channel indicators lit.unable to select channels. once in a while unit would function properly. | ||
SONY |
KV2644R
|
No operation, replaced l001 | Although remote and manual controls did not work, unit wouldcome on with master on/off switch (intermittently). | ||
SONY |
KV1945R
|
Dim picture, replaced r555 and d513 | Dim picture. found no 950v on c board, r555 open and carbonpath between pins 1 and 2 in crt socket. | ||
SONY |
KV1945R
|
Shut down, replaced relay rl001 | Set plays several hours, then shuts off. remote control ormanual on-off buttons would not turn the set back on for several seconds.relay would click every time the set on/off button was pushed. | ||
SONY |
KV1913
|
Picture distortion | Vertical flutter at top one-half inch of picture, increasingvertical size control would eliminate this and fill out picture, butretrace lines would appear. vertical output waveform at pin 3 of ic502was of sufficient amplitude, but had horizontal signal | ||
SONY |
KV1913
|
Channels no lock | No reception for 30 minutes when set is started from a coldstart. then channel change was very slow. channel did not changeinstantly but slowly over a period of 5 to 10 seconds. | ||
SONY |
KV1751
|
Picture distortion | Piecrusting in picture. | ||
SONY |
KV1714
|
No picture | No picture, distorted sound. found vhf to be very snowy. | ||
SONY |
KV1545R
|
Remote only within 10 inches, replaced q2 "n" board | Remote had to be within 10 inches of tv unit to activatevarious modes. found q-2 amp on n board with base emitter leakage. | ||
SONY |
KV1545R
|
Intermittent retrace lines in picture, replaced r722 | After the unit was energized, fine retrace lines wouldappear after 5 seconds and there was no control of brightness. g2voltage would not go low enough and g1 voltage was 125v dc instead of 30vdc. wrong value resistor had been inserted in board (r722) i | ||
SONY |
KV1217
|
Incorrect tuning operation, replaced r078 | In program mode, pressing tune-up button would cause a changein address position only and could not program any channels. also, nochannels could be put into or removed from memory. | ||
SONY |
KP5020
|
Dead | Dc block assy failure (distorted waveform) dc fuses open. | ||
SONY |
KP5000
|
Dead, replaced mica spacer under vert output transistor | 2.5 amp fuse on b+ line would blow every 7 to 10 days.replacement of the fuse restored operation and hours of testing providedno clue to problem causing fuse to open. by by-passing the relay witha jumper and using a variac, increasing ac input to 130v a | ||
SONY |
KV2645R
|
Snow picture, replaced bt981 prescaler | Unit goes to snow. substituting tuner didn't cure problem.voltages around front end seems to be at spec. tried prescaler andthat solves the problem. | ||
SONY |
KV2645R
|
Poor remote operation, replaced q1 | Remote would operate intermittently and is usable up to6 feet from cabinet. q1 on head amp board noisy - collector voltage onq017 on md board was varying between 4 and 8 volts. |