crwdns2934241:0crwdne2934241:0 jayeff

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Hi @madmerlyn

Here's the [https://elektrotanya.com/onkyo_ht-r390.pdf/download.html|service manual] that may help.

It has the schematics for the receiver, so start at the power input and follow it through to see if the voltage supplies are OK.

If there's a faulty part it has a parts list as well.

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