In article , starman wrote:
Michael Bryant wrote:
From: (Mark Zenier)
I had a several similar problems in my similar vintage Kenwood
R-1000. The first case was a poorly aligned filter on the
frequency synthesizer board, the second was a bad connector in
the power supply, and the bandswitch needs a shot of tuner-lube
every five years or so.
The shot of tuner lube has worked on my sony 6800W when it was acting very
similarly.
I don't recommend that for his problem.
Yea, I got an email from them saying that it quit halfway down the dial,
so it's in the oscillator tuning.
If the Band switch were the problem, it would affect the entire FM band.
Either causing the FM band to not work at all, or intermittent jumping
between bands.
The band switch, at least in the case of my Kenwood, an etched circuit
board based rotary switch. IMHO, their construction is marginal.
It's very expensive to make a switch with better quality contacts with
this small spacing. Tuner lube, in moderation, will fix these switch
problems, temporarily.
Mark Zenier
Washington State resident