Left Channel Bad/Denon DRA-635R

[Paul Whitcomb]

Hello everyone.

Last night, I picked up a Denon DRA-635R (my second one), and when I plugged it in, the left channel barely emits a signal. I hear something trying to get through, but it is barely audible. I will have to admit that I wiped the front down with a sponge last night. I figured maybe that was the cause, so I let it sit overnight. This morning, the condition persists. I have tried all sources (C.D., cassette, and radio) and all have this same symptom. I have checked the speaker connections, and the wires between speakers and receiver and between components are good. Headphones confirm left side is out.
Apparently, I will have to have it serviced, but just to set my mind at ease, I would like to know whether my wiping of the front panel could have caused a permanent, low, thin, almost-absent volume from the left side. Thank you

[Mr Peabody]

Unless the cloth was dripping wet I highly doubt you caused any damage.

[thekid]

Cleaning the pots with a little DeOxit would be what I would try first before taking it to a tech. Plenty of info on the net on how to do this. Even some contact cleaner from the local hardware store will probably do the trick.

Welcome to AR!

[Paul Whitcomb]

Thanks, Mr., the.

I took the case off to have a look and it seems the people at Denon thoughtfully put some armor plating behind the controls, so I will have to figure out how to get that piece off (without a service manual) to get to the control pots. I'll let you both know the outcome.