[ICOM] Ailing IC-745 - any thoughts?

Richard Peterson wb5nen at hotmail.com
Tue Jun 12 10:30:42 EDT 2007


I want to thank the many folks who were kind enough to make recommendations 
on where to ship my 745, should I elect to do so. Thanks to everyone! It was 
very, very helpful.

I have taken an initial look at the shop manual, and have thought about 
repairing this on my own, but for right now, I am puzzled.

On 160, 80 and 40 meters, it works perfectly. But on any bands above that, 
and you key the mic, you get full output (just as if you hit the key) on 
some really oddball frequencies. Further, this full output occurs regardless 
of where the RF level pot is set. Plus, the tuning control makes no 
difference at all. For example, on 14 MHz, the output is fixed at around 24 
MHz. You can spin the knob, but the frequency on my counter does not change.

This rig has several VCOs, as I recall ... but I am beginning to think there 
is a logic problem.

Any suggestions?

Richard
WB5NEN

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