Dicas Reparação
Modelo - Chassis STRVX5
Pesquisa: STRVX5 Enviar Dica Resolvida
Resultados 42
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | STRVX550 | MISSING P/N IN MANUAL | Many servicers ask for the part # of the capacitors used inthe Hi-Fi Service Bulletin #180. | ||
| Sony | STRVX550 | GROUND CONNECTION MODIFICATION | Tightening ground screen on the main chassis and displayboard does not always resolve the ground problem. The easiest thing todo is to install star washer. | ||
| Sony | STRVX550 | STATIC INDUCED ONTO TV SET | When the VX-550 was on and within about 10 feet of a TV (anybrand) static was induced in the picture and sound. We found the multi-vibrator which supplies power to the fluorescent tube filament to be thecause. | ||
| Sony | STRVX550 | MUSIC STOPS AND NOISE OCCURS | Unit would play on FM and intermittently go to noise. Displaywould remain unchanged and tune light stayed lit. I found taping on powersupply caused problem to come and go. Found the ground connection to bethe problem on that main board. Put in a star | ||
| Sony | STRVX550 | MISSING PART NUMBER IN MANUAL | No part number for FM tuner in S/M. FM tuner number isA-434-402-9A. | ||
| Sony | STRVX550 | GROUND LOOP PROBLEM | Intermittently set would shut off all displays, or would losepreset stations, or sound would be muted until any one button was touched. -HQ COMMENTS: Ground loops can be difficult to isolate. We would haveprobably done the same using braid wire (solder | ||
| Sony | STRVX550 | MISSING C654 | One channel appeared to be louder than the other. Looking atchannels on the scope showed left channel boost in treble when basscontrol was increased. Found that C654 was not installed at the factory. | ||
| Sony | STRVX550 | DEFECTIVE IC301 | Memory would not hold functions. Battery and power supplygood. | ||
| Sony | STRVX550 | TUNER NOT ALWAYS FUNCTION | Output would switch on and off. Tuner would not alwaysfunction. Display intermittent. | ||
| Sony | STRVX550 | AMP OVERHEATS | When using amp on a 4 ohm load after 5 to 7 minutes powerchip will overheat and short. This is at 50 watts which is the spec. onthe service manual. On 8 ohm load at 50 watts, power chip runs extremelyhot, also. -HQ COMMENTS: We ran our unit into a 4 o | ||
| Sony | STRVX5 | TIME CONSTANT OF PROTECTION RELAY TOO LONG | The speaker relay delayed an excessive amount of time beforeopening its contacts at turn off. This created an occasional pop throughthe speaker. We determined that the time constant-associated withC718/R743 was too long. Reducing C718 from 220 uF to 1 | ||
| 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 |