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Sony Amplifier STR-DE245 button fault

sparkyuiop

Active Member
Hi, I wonder if anyone has any idea's on why my amp is playing up?

When I push a button on the front panel it does random things like if I push the CD button it will turn the bass down or something else but then if I keep pushing it I will get the CD in the end.

All the front buttons do this including the ones on the tuner buttons PCB which is a different PCB connected by 4 pins.

I have reflowed almost all the joints on the main board and looked for cracks etc but found nothing.

I'm wondering if it is a bad earth but don't know where to start looking.

Any thoughts appreciated.
 

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