On 3/22/11 15:22 , OnkyoMan wrote:
Thank you for your suggestions!

It is starting to look a bit more like the problem might be centered the
trimmer capacitor. One user told me to simply rotate that capacitor a
bit,
and now the radio works perfectly on FM. SW and MW are still completely
dead though... the volume only amplifies the white noise.



Check the antenna select switch, and the DX/Local switch. It
sounds like you have some oxidation in your unit. These switches, if
oxidized, will produce the very symptoms you describe, especially
true if FM is now working.

Throw these switches several times. Move the toggle in a circle
until you get some change in the noise.

I experience this regularly with my own Sat 500.


Now I'm trying to ID a good source for trimmer capacitors. If anyone
has a suggestion, please let me know! I'd like to find a high quality
replacement, if possible.


IF it's working, you may not need one. It sounds like you have
oxidation on the rotor contact, which is preventing this trimmer
from completing it's circuit configuration. Now that you have it
working, move the rotor back and forth a few times, it will be fine
for quite a while.


Thanks,

Matt