Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | STRVX6 | DEAD | Dead unit. Output transistors were shorted causing pulsepower supply to fail - replaced known defective components restoredoperation but bias current, after adjustment would start to increasecausing outputs to run hot. Removed power before damage resul | ||
| Sony | STRVX6 | OVERHEATING REGULATOR | The +15V regulator overheated to the point where it burntthe board badly. After replacing the board and modifying according tothe service bulletin we still had a very hot regulator. How can we coolit down? | ||
| Sony | STRVX5 | MALFUNCTIONING MUTE CIRCUIT | Upon turning power off, a slight popping sound through bothspeakers will be heard. By grounding inputs of main amp the popping iseliminated. An imbalance in the decaying time of the positive andnegative supply voltages can be seen on the scope. This r | ||
| Sony | STRV25 | AGED RESISTORS | The customer has owned this unit for 16 months and has hadit serviced by an independent servicer 4 times. She said it would playfor a while and then one or both channels would go out and it would stopworking. The relay would kick out. | ||
| Sony | SRF40W | DEFECTIVE HEADPHONE JACK | This unit had good separation and power level but the outputwas distorted. It appeared to be an output problem. Further examinationfound the headphone jack defective. Although this circuit is a simpleone, this problem was misleading. | ||
| Sony | SPP11 | OPEN FOIL TRACE | No dial out, no dial tone, squelch broken opened base unitand measured voltages. No output from bridge rectifier D-6. Found openfoil pattern at output lead of D-6. | ||
| Sony | SEH310 | POOR SOLDER CONNECTION | One channel cuts out intermittently when the space soundfunction was activated. | ||
| Sony | PSX65 | DEFECTIVE IC106 | All functions inoperative. | ||
| Sony | PSX40 | SHORTING Q202 | We found the DC AMP to be open (cracked) as a result of Q202shorting - thus applying 18V to the IC. | ||
| Sony | PSFL1 | NOISE DURING OPERATION | When the turntable moves in or out there is an objectionalclicking sound. | ||
| Sony | MDRFM5 | PART NUMBER FOR WIRE | Wire for connecting head-pieces to main cabinet. Need blue,orange and grey colored wire that connects switch board to amp in ear-piece. Has to be very small wire and stranded wire to last some time. -HQ COMMENTS: P/N for 10m lengths are as follows:9-9 | ||
| Sony | ICFC20W | DEFECTIVE IC'S | When power is turned on, display sets to 1:00 AM or PM andwill not set time nor alarm functions. When powered up display will onlyindicated flashing dots - no numerial displays. | ||
| Sony | ICF2001 | NO AM | All functions worked except AM, found Q41 (2SK107) withintermittent lead. | ||
| Sony | CFS500 | TAPE JAM | Tape counter belt comes off and jams in take up spindle assy. | ||
| Sony | CFS500 | MANUAL ERROR | Manual error. P. 30 (2) Ref. #16 shown #16 pointing to spkgrille should be Ref. #14. |