Dicas Reparação
Modelo - Chassis TAAV621
Pesquisa: TAAV621 Enviar Dica Resolvida
Resultados 5
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | TAAV621 | INTERMITTENT PROTECTION - REPLACED C703 | On one channel there is +2 to +5 volts on the emmitors ofoutput transistors. This case Q713 & Q712. Checked all resistors,transistors, in channel all checked good. Problem seemed to be in areaof Q701 replaced it, same problem, found C703 shorted. | ||
| Sony | TAAV621 | NO SURROUND OUTPUT, SURROUND CHIP OVERHEATS - REPL IC304 | Unit had IC304 replaced from previous service. Found s/m pg17, incorrect indicating notch in corner of chip to be between pins 1 and64. Chip notch is between pins 48/49 as indicated on pg 23. | ||
| Sony | TAAV621 | WRONG XTAL INSTALLED ON DISPLAY BOARD - REPLACED X101 | Replaced display board to find unit still dead. X101 ondisplay had wrong values. Need to check KC stock for wrong parts.The Xtal installed and the new board was an 8 meg xtal instead of a4.19mhz Xtal. | ||
| Sony | TAAV621 | CENTER AND REAR BOARDS NOT AVAILABLE - SEE S/M CORRECTION-1 | These boards are no longer supplied separately. | ||
| Sony | TAAV621 | AUDIO CUTS OUT, UNIT IN PROTECT - CHANGE R807 & R857 | I have several customer complaints regarding this problem.It occurs when in surround mode and the rear level is adjusted at 50% ormore. When the master volume is increased, unit goes into protect (relayopens). This problem occurs when in Simulated or Ha |