More reliable Upgrade for StBy Control Section in Yamaha's RX-N600 Receiver

Due a bad design in the st-by section always the same parts will be defective after a short time of use - go to the attachment and this video:
More URL's:
Are there companies, who offer upgrade kits concerning this stby unit for higher reliability ?
Thanks for an advice.

Owner's Manual is here:
Service-Manual :


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