Chosen Solution
Ive had this receiver for like forever. Recently, it started doing this clicking thing. It clearly sounds like some kind of relay and seems to happen at random. Some times it goes for 4 - 5 hours (after turning it on) w/o happening and other times its after only 10 minutes. Some times it click 6 - 8 times a second for a couple seconds and other times its maybe once a second for 5 mins. The audio cuts out while this is happening. I first thought it might be a heat issue, so I blew the thing out and stuck a fan blowing on it. This changed nothing. Interestingly enough though, I realized its the SPDIF In audio that cuts out. When using the analog input on the front, the audio doesnt drop. But the clicking is quite loud anyway. Anyone have any diagnostic/repair suggestions? Thanks!
@ahhk could be the speaker relay that does the clicking. We would need to see more from your receiver. Post some good pictures of the boards etc. so we can see what you see. Of course, check for obviously damaged components (charred, lost,etc.,) Since it only happens with SPDIF I would check the audio decoder IC first. IT is located on the X08-3060-10 (J70-1459-32) board (the one with the digital in ports).
Hi @ahhk , Bit confused when you say that it doesn’t happen on analogue audio but the clicking is quite loud. Presumably the relay is still operating but not affecting the audio is this correct? Here’s a link to the service manual for the receiver. (it also covers the VR-507). On p.5 it shows that the receiver has 3 protection circuits. Thermal, over voltage and over current. You may have to work out which protection circuit is the one causing the relay to operate. The manual has the circuits (see p.16/35 when viewed in PDF viewer) to find the protection circuit. Hopefully this will be of some help.
