Dicas Reparação




Modelo - Chassis PSX7


Pesquisa: PSX7 Enviar Dica Resolvida
Resultados 8
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyPSX75
INTERMITTENT LIFTER OPERATION Tonearm would go to correct drop-point, but lifter would notdrop. Touching the tonearm would cause lifter to operate.
SonyPSX75
DEFECTIVE HALL IC D601 The turntable motor did not turn although there was a kickpulse (current) through the motor coil.
SonyPSX75
NO STYLUS FORCE The tone arm did not go down and there was no stylus force.
SonyPSX75
ARM NEEDED ADJUSTMENT Cantilever of cartridge was being pulled to one side, bendingit eventually also mistracking in one channel, poor dynamic range, etc.
SonyPSX70
OPEN TRANSISTOR When unit starts cueing works. After that, the manualcueing does not work. There was a pulse at the base of Q133 andcollector of Q134 after that there were no pulses.
SonyPSX70
WEAK MOTOR Tone arm would not complete return and play cycle wouldstop widway most times.
SonyPSX7
DEFECTIVE Q203 Automatic function engages when power is turned on or off, andspeed varies. This only occurs when unit is cold.
SonyPSX7
REPLACEMENT MOTOR WILL NOT MOUNT During troubleshooting, we found that replacement motor(A-460-801-9A) would not mount properly. Dimensions of motor shaft andspindle were different.


Assistência TécnicaAs dicas apresentadas destinam-se a técnicos de eletrónica, a tentativa de reparação ou assistência sem ter conhecimentos de eletricidade e eletrónica, podem provocar danos mais graves aos equipamentos e, devido a tensões muito elevadas em alguns circuitos, graves danos fisicos que podem constituir um risco em determinadas reparações.

Não arrisque reparar equipamentos com tensões elevadas se não tiver conhecimentos técnicos para o fazer em segurança.

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