Dicas Reparação




Modelo - Chassis SPP300


Pesquisa: SPP300 Enviar Dica Resolvida
Resultados 8
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SonySPP300
UNIT IN 20 T PULSE ONLY - RESOLDER S502 IN BASE Unit will not switch to 10t or tone dial modes, switch good.
SonySPP300
NO DIAL TONE - REPLACE IC-508, P/N 8-759-921-08. No dial tone from corded handset or cordless. Found voltageat IC501/pin 12 to change from 4.4 volts to 1.8 volts as the hook switchis pressed. IC508/pin 6 would not change. IC508 (3/4) would notrecognize 1.8 volts as being a low.
SonySPP300
NO AUDIO TO/FROM CORDLESS HANDSET- INTERCOM OK - (IC-507) The unit's handset would not receive or transmit audio to orfrom the outside line. The intercom function worked normally meaning theproblem must be in the base unit. I found pins 11, 12 and 13 of IC507 atvarying voltages causing the output pin 10 to st
SonySPP300
HANDSET DOES NOT COMMUNICATE WITH BASE Cordless handset had low B+ to PLL. Only 1.2 volts on Q-210collector.
SonySPP300
NO DIAL TONE - Q610, Q611 Unit will not work.
SonySPP300
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.
SonySPP300
CUSTOMER OPERATION MANUAL On page 7 of instruction manual they show the AC-T40connected to the base unit. I believe the AC-T90 is the adaptor usedfor the base station.
SonySPP300
PART NUMBER CORRECTION Part number in service manual = 8-729-201-79. Part numbershould be 8-729-201-78. -HQ COMMENTS: Thank you for your information. We will publish a servicebulletin. 5/88: TEL S/B # 005 was published this month.


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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