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ITPeter, Engineer
Category: Home Theater-Stereo
Satisfied Customers: 17908
Experience:  Electronic Engineer
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I have old am/fm receiver (Technics SA-GX505). It was

Customer Question

Hi, I have old am/fm receiver (Technics SA-GX505). It was working.... now the standby light is on but it won't turn on. should i have to change the power supply unit?
Thank you.
Submitted: 2 years ago.
Category: Home Theater-Stereo
Expert:  ITPeter replied 2 years ago.
Hi there,
The power supply unit is the most likely cause of the fault.
It can be tested, and replaced if confirmed as faulty.
Customer: replied 2 years ago.

Thank you.

I do not know the part number of power supply unit and i see something called "Power supply Circuit" in the service manual. there is only one transistor (probably power transistor). Can It be the issue? what if i cahnge the transistor?

I am not sure if i want to take to shop to fix it( it may cost more than the receiver itself)

Thank you.