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Old 05-15-2019, 05:25 PM   #13
Badcaps Veteran
Join Date: Jan 2011
City & State: Iceland
Posts: 203
Default Re: Harman Kardon AVR 270 - No power

I received the parts today and soldered them in.
Now it still won't power on, just like it did before I took it apart.
The orange power light turns white for a second then returns to orange.
I can hear a faint noise coming from the SMPS PCB, like it's trying to start but can't.
The noise seems to be coming from those two big black transformers or near them.
The Ceramic caps C984 and C983 were really dark so I replaced them, saw it somewhere that if those caps are gone the AVR would have the same symptom as I had/have.

Any one know what might be wrong?
Attached Images
File Type: jpg Top1.jpg (2.08 MB, 7 views)
File Type: jpg Top2.jpg (1.85 MB, 4 views)
File Type: jpg Under1.jpg (2.33 MB, 3 views)
File Type: jpg Under2.jpg (2.50 MB, 2 views)
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