Dicas Reparação




Modelo - Chassis SPP50


Pesquisa: SPP50 Enviar Dica Resolvida
Resultados 24
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(Chassis)
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SonySPP50
BASE DOES NOT RECOGNIZE CODE Code was being received in the base but the IC-2's op-amp/fil-ter was loading down the signal by rounding the edges of the square wave-form at its input pin No. 3 (IC-2). After being shaped by Q-5 and Q-6,the micro could not recognize the code. Also cr
SonySPP50
NO SIDE TONE No side tone but handset does receive dial tone. The problemwas isolated in the base. Defective C-71 was preventing side tone fromreturning to the handset. The capacitor was dried out which allowed theouter can to spin freely. Also pertains to serial
SonySPP50
UNIT DISCONNECTS LINE AFTER 20 SECONDS. Unit disconnects line in approximately 15 to 20 seconds. Thisis due to the fact that IC-1 pin 14 is internally shorted to ground (at743 Ohms). This in turn holds IC-5 pin 20 low and the micro disconnectsthe line.
SonySPP50
NO DIAL TONE No dial tone. Z-1 is shorted. Credit also B. Kennedy forassistance with FPR.
SonySPP50
INTERMITTENT BEEPING SOUND Intermittent beeping sound and Batt/Stdby lamp is flashing.
SonySPP50
NO DISCONNECT - WALLMOUNT When phone is hung-up (wallmount position), there is no chargeand no disconnect.
SonySPP50
NO COMMUNICATION BETWEEN BASE AND HANDSET. No communication between base and handset.
SonySPP50
NO POWER - BASE No power in base.
SonySPP50
BATTERY NOT LASTING - DISCHARGING Battery not lasting in standby for full 20 hours. Some onlylast 12-16 hours. Others last even less.
SonySPP50
NO DIAL TONE - Q10 No dial tone and buzzing sound.
SonySPP50
PAUSE FUNCTION WORKS ONLY IN PULSE MODE The pause function works only in pulse mode and not in thetone mode.
SonySPP50
WHAT IS THE DISCONNECT TIME WHEN USING THE FLASH BUTTON How long is the line disconnected for when using the flashbutton? -HQ COMMENTS: The line relay is opened for 500msec.
SonySPP50
TEST CONNECTOR FOR ALIGNING RF SECTION How do you align RF section?
SonySPP50
IMPEDANCE OF SONY TELEPHONE PRODUCTS What is the impedance of our phone products? -HQ COMMENTS: All Sony phones fall in the range of 50 to 300 Ohms whenthe phone is off-hook and when DC-loop current is in the range of 15 -120 ma.
SonySPP50
BATTERY CELLS SEPARATE During charge, the battery cell casings separate, emittingsmoke and blowing the battery cover off. SSC reports three batteriesreplaced due to this. -HQ COMMENTS: I have gotten a couple of batteries from SSCs that were inthis condition. I suspect that


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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