I have minor issue to sort out soon, as the relay on the Kenwood AVR is clicking periodically on and off, no sound audio fault on when using the AVR as the outputs go to there own DCX2496 to amps. I think its dry joint on the underside of the PCB that needs to be fully undone I mean the whole circuit board lifted out of chassis that would take me the whole day of undoing it and looking for any dry joints on the PCB that is located near to the relays.

I haven’t tested it with internal amp to determine if there is an actual audio fault. If I tap the chassis, the relays click on and off real fast and that is sure no doubt about sign of possible dry joint on the PCB!

I only fixed the fluorescent display on the AVR early this year as that had dry joints at least 4 or 5 dry joints that prevented the IR working when sending remote control commands to AVR, also the display would go dim and a little tap on the AVR made it work, hence a dry joint on the PCB! And it took some 4 to 5 hours to get the sound system all full wired back up! SIGH LOL

I have another dry joint on one my Pioneer CLD-2590 on the composite video output three pins to solder not a big deal.

Dry joints are fairly common in some electrical faults. I wonder now if that was the case with my Cello DR-810??? I assumed the power supply module gave up the ghost?