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Post by martin on Oct 14, 2021 4:47:18 GMT -5
Hi I need some help please.
I have a Yamaha RX-V373 that will not power on.
If I try the reset process on the front panel I get a double click as the power relay engages and immediately disengages.
I read on a previous threat that bridging C1507 would make the unit live so I did this and then unplugged the ops boards from the PSU. All is fine until ops board 2 is plugged in, this blows the fuse.
Any hints on where I should be looking for the cause?
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Post by dobrykamil on Oct 23, 2021 6:48:19 GMT -5
Blown STK amplifier IC or shorted bridge rectifier for the main power amp rails. Disconnect connector from main power transformer (with double red and blue cables)and try again.
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