AV amp problem

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Dear all,
I have an old Yamaha A1092 which has been put in store for a few years. It failed to turn on after connected today. It just automatically switch off about 1 sec after turning on. I have run the diagnostic menu and the diagnostic code was PS PRT 0%. Can anyone tell me whxt is wrong with the power supply? Thanks.
 
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This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.