[R-390] Intermittent

[KC8OPP Roger S.]

Gary,

When this happens, rock the MHz control back and forth one or two MHz.  This will wipe the contacts on the band switch, no change then the band switch is good.  Signal comes back, then it is time to yank the RF deck and clean and adjust the band switch.

Good Luck, and keep us posted.

73's
Roger
KC8OPP


--- On Fri, 11/13/09, Gary Harmon <gharmon at idworld.net> wrote:

> From: Gary Harmon <gharmon at idworld.net>
> Subject: [R-390] Intermittent
> To: "R-390" <R-390 at mailman.qth.net>
> Date: Friday, November 13, 2009, 9:45 PM
> My R-390 has intermittent signals.
>  
> Sometimes broadcast will come on in about a minute and then
> operate for
> hours before the signal drops out.  It may come back
> or it may not.  When it
> drops out or comes on it does it slowly like something
> turning on or off.
> When the signal drops out, audio hiss remains.
>  
> All tubes have been checked but not lengthy tests.
>  
> Suggestions anyone??
>  
> 73,
>  
> Gary H. Harmon, Jr. - K5JWK
> 6003 Archwood
> San Antonio, TX 78239-1504
> 210.657.1549h
> 210.884.6926c
>  
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