Dicas Reparação SONY
Modelo - Chassis
Pesquisa: SONY Enviar Dica Resolvida
Resultados 18945
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | SPP100 | HAND UNIT WILL NOT ACKNOWLEDGE | The hand unit would not acknowledge a command from the baseunit. We found that the front end of the hand unit was working, butthat the upc would not respond to the incoming MSK and set the localosc. to the correct freq. The problem was caused by poor s | ||
| Sony | KV25XBR | EXCESSIVE HIGH VOLTAGE | The unit was producing too much HV and going into shut down.We found the problem to be caused by a defective C1664 on the D board.This cap is supposed to be a 0.025uF, however, it had decreased to approx.0.016 which of course changed the tuning. | ||
| Sony | KV2657R | NO VOLUME OR PICTURE CONTROL | There was no picture or sound control. Unit would power upand change channels, LED indicators worked. Found the problem to becaused by two shorted buffers - Q005 and Q006. It is strange that theUPC was not defective. I suspect that this was lightning | ||
| Sony | KV1542R | NO COLOR ON CHANNEL 6, ALIGNED L175 | All functions appeared to work fine except that there was nocolor on ch. 6 when I looked at the unit. The tuner had already beenreplaced. Found VC and bandswitch to be correct. Resolved the problem bytweeking L175 in the local oscillator of the tuner. | ||
| Sony | TC850 | TAPE LIFTER MECHANISM INTERMITTENTLY ACTIVATES IN OFF MODE | The tape lifter would intermittently engage when the circuitwas switched off. This of course prevented the tape from contacting thehead. We found the problem to be caused by a leaky Q605 on the systemcontrol board. This was preventing the B+ reg. from | ||
| Sony | TCWR930 | SERVICE MANUAL CORRECTION - D914 | D914 is a 24V zener diode. It is listed in the parts listas: HZ27-1LTP / 8-719-992-71. I do not believe that this is correct.Also, it is not listed in the computer. -HQ COMMENTS: The diode type is correct. However, the P/N is not.The P/N should be 8- | ||
| Sony | KV2680R | FLASHING VIDEO, COLD SOLDER ON JUMPER TO IC-301/P14 | The picture would intermittently flash and the contrastlevels would shift momentarily. We found the problem to be caused by acold solder connection on the jumper connecting to IC301/P14. Seeattached. | ||
| Sony | CPD1302 | DEAD | Dead set. Occurs 1 or 2 times everyday at EXXON company. | ||
| Sony | CPD1302 | STATIC SHOCK | 1) Static shocks when touching chassis/screen 2) A spark ofstatic when removing screws of the back cover -HQ COMMENTS: We found the static at CRT surface exist only when the setis turned off. However when the set is on, there is no static on thescreen | ||
| Sony | CCDM8U | OUTSIDE PICTURES WHITE AND INSIDE OK | Outside pictures real white - no iris operation. | ||
| Sony | CCDV3 | SOFTWARE JAM | Take-up reel will not work properly causing slacks on tape,eats tape and will not eject. | ||
| Sony | CCDV8AFU | REPLACING CCD PICK-UP | This unit had intermittent picture. Found cold solder jointon CP-9 board. I have to remove CCD imager to repair unit. During removeor install one, seems damaged. | ||
| Sony | D7 | PLL OUT OF ADJUSTMENT | Skips with disk defects greater than 400 microns. Found PLLadjusted to free run at 4.19 MHz. | ||
| Sony | STRAV380 | COLD SOLDER JOINT ON OSCILLATOR RESISTORS | No display. No functions. Power supply appears OK. | ||
| Sony | CCDV8 | NO PLAYBACK PAUSE | No PLAYBACK PAUSE, but RECORD PAUSE OK. When PAUSE is pushedduring PLAY, sound mutes but tape does not stop. Adjusting RV501 on SV-13board to minimum resistance allowed pause to work but pulse width out ofQ625/Q626 MMV was only 0.5ms instead of specifi |