Dicas Reparação
Modelo - Chassis STRVX750
Pesquisa: STRVX750 Enviar Dica Resolvida
Resultados 13
Pedir dica reparação
| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | STRVX750 | NO AUDIO OUT - REPLACED SHORTED Q724 | Unit locked up. No audio out. Q724 shorted. DC goesthrough output transistors. | ||
| Sony | STRVX750 | FM DISPLAY INDICATES WRONG FREQUENCY | In scan tuning mode the FM tuning display indicates wrongstation frequency. AM is ok. In direct access tuning the display iscorrect but the center tune and FM MPLX indicators are OFF. | ||
| Sony | STRVX750 | NO OPERATION | No operation, no display, but standby indicator does light up.Problem may be intermittent. Same problem happens on STRVX550. | ||
| Sony | STRVX750 | LOSS OF MEMORY | Unit loses memory if you turn off main power switch. If youturn off system power first, then main power switch, the memory will bemaintained. Back up battery voltage drops below 1.2V causing the unit toreset. If the unit is turned off with system powe | ||
| Sony | STRVX750 | BLOWING INVERTER TRANSISTORS IN PP SUPPLY | Set had been blowing out Q903/904 every couple of months. | ||
| Sony | STRVX750 | INTERMITTENT MEMORY, WRONG MEMORY IN PRESENT, NO OUTPUT | 1) Intmt loss of memory @ powered 2) Occasionally a stationnumber would show up @ turn on that was not in preprogrammed memory andhad not previously been selected 3) FM high/low switch inoperative 4)@ turn on, unit had no output until a button (any on | ||
| Sony | STRVX750 | SHUTDOWN | Unit would come on for a few seconds and shut off. This wasintermittently. Found with signwave input that right on out had ringingand spike on output. Found R783 had changed value 39ohm. Changed, sameproblem. | ||
| Sony | STRVX750 | AUDIO CUTS OUT | After unit warms up, SP relay kicks off. | ||
| Sony | STRVX750 | INABILITY TO PROGRAM USING FRONT PANEL CONTROLS | Technician was unable to program some digits into receiverw/front panel buttons, but programmed OK w/remote control. | ||
| Sony | STRVX750 | AUDIO | Unit DOA. Replaced power supply inverters. When we switchedto 4-6 ohms on SP IMPEDANCE SW, unit smoked R813 and went dead. Furtherinvestigation showed -28VDC supply shorted to ground. | ||
| Sony | STRVX750 | CORRECT SETTING OF 4/8 OHM SWITCH | Found L802 open twice. Upon talking to customer found he wasusing 8 ohm speakers. Found IMP SW on back of unit in 4 ohm position. -HQ COMMENTS: With the 4/8 ohm switch in 4 ohm position, a loadimpedance of T903 is lower than that in 8 ohm position, ma | ||
| Sony | STRVX750 | IC301 NEEDED RESET | Original complaint was that switched AC outlet on rear panelcould not be tuned off. | ||
| Sony | STRVX750 | IC301 NEED TO BE REPLACED | In reference to T/N #8512, this STR-VX750 has the former IC301(8502) which causes the problem that had been thought to only occur inthe early production (806,000) STR-VX550. |