[R-390] need help with R-390A symptom

[Tom Frobase]

Volume control shield / ground wire loose, I have also had a similar
system when the pins on the audio module we no seated or a little
corroded ... Tom, N3LLL

On 1/8/09, Bob Young <youngbob53 at msn.com> wrote:
>
> After my radio been on for perhaps 10 minutes, the volume will instantly
> increase along with some hum to where you can still hear it with the volume
> on 0, this happens suddenly almost like a bad connection just got
> straightened out excpet for the hum. Something as simple as switch from one
> antenna to another will make the radio go back to normal. Also turning it
> from on to standby and back again always straightens it out. The AGC seems
> to work fine. I had suspected maybe a partially burned antenna radio relay
> at first but don't think it could be that. It will do this off and on for a
> while and sometimes after several hours it seems run normally for a while.
> Any ideas on where I should begin to look?
>
> Bob Young
> Analog, MA
> KB1OKL
>
> _________________________________________________________________
> Windows LiveTM Hotmail(R): Chat. Store. Share. Do more with mail.
> http://windowslive.com/explore?ocid=TXT_TAGLM_WL_t1_hm_justgotbetter_explore_012009

-- 
Sent from my mobile device