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

On Mar 22, 4:14*pm, "D. Peter Maus" wrote:

* *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.

Could you get the same results with a squirt of cleaner in the switch
innards?

On 3/22/11 23:18 , bpnjensen wrote:
On Mar 22, 4:14 pm, "D. Peter wrote:

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.

Could you get the same results with a squirt of cleaner in the switch
innards?


You could. Wearing through the oxide is a better solution for
serveral reasons. Cleaners tend to dissolve, or at least soften,
existing lubricants within the switch, which can cause them to migrate
into contact areas, attracting dirt, rehardening into films that
interfere with contact. Or worse, creating corrosive elements by
chemical actions between the cleaner, the lubricants, and some airborne
crap. Which necessitates more frequent cleaning of the switch.
Eventually, replacement is required.

Cleaning may produce a result, but it often comes at a cost of
shorter switch life.

On Mar 23, 5:03*am, "D. Peter Maus" wrote:
On 3/22/11 23:18 , bpnjensen wrote:

On Mar 22, 4:14 pm, "D. Peter *wrote:

* * 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 Sat500.

Could you get the same results with a squirt of cleaner in the switch
innards?

* *You could. Wearing through the oxide is a better solution for
serveral reasons. Cleaners tend to dissolve, or at least soften,
existing lubricants within the switch, which can cause them to migrate
into contact areas, attracting dirt, rehardening into films that
interfere with contact. Or worse, creating corrosive elements by
chemical actions between the cleaner, the lubricants, and some airborne
crap. Which necessitates more frequent cleaning of the switch.
Eventually, replacement is required.

* *Cleaning may produce a result, but it often comes at a cost of
shorter switch life.

Real switches have gold plating in the contacts . For real .