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Louie, Technician
Category: Consumer Electronics
Satisfied Customers: 12682
Experience:  25+ yrs. experience in the field and 5+ yrs. online, down to component level.
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My sansui9090 has no power

Customer Question

my sansui9090 has no power
Submitted: 1 year ago.
Category: Consumer Electronics
Expert:  Louie replied 1 year ago.
Hi Aston and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, proposed preliminary tries (if have not been done):• if a transistor was replaced @ F-2546, then check for the presence and consistency of +36V at pin 15;• confirm the value of the "390Ω" resistor @ F-2436.
Expert:  Louie replied 1 year ago.
Hi again Aston, Any updates?
Customer: replied 1 year ago.
no voltage at pin 15
Expert:  Louie replied 1 year ago.
I had to ask the moderators to close your other question.If no 36V at pin 15, then please check: • +52V @ collector of TR02;• +37.2V @ base of TR01;• +13.5V @ base of TR03;• +13.0V @ cathode of ZD01.