K2: Audio stops until power is cycled

[Tom KG3V]

I have an intermittent problem. It rarely occurs, but since I mainly use  
the K2 for Contesting, it is a real annoyance. Suddenly all audio will go  
dead. The only remedy is to recylce power to the unit. It is very possible  
that this happens just after I make some control changes (like changing  
bands and/or filters).

I have also had one other strange occurance, that may or may not be  
related. The LEDs on the KAT-2 will all go dark, and stay that way. I  
believe the unit still tunes, but no SWR indicators on the panel at all.  
Again, the only fix is to recycle power to the unit.

Any ideas? I am guessing a communication problem, maybe AUX Bus related?

73,

Tom, KG3V
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[Don Wilhelm-4]

Tom,

Intermittents are tough to analyze and to find the problem source.
The most likely answer is that there is a poor solder connection somewhere.

I trust the tuner is a KAT100 rather than a KAT2.  The KAT2 does not
have LEDs.

If you can keep it in the failure state, it may be easy to find using
Signal Tracing techniques.  See the K2 manual Appendix E for the details.

73,
Don W3FPR

[hidden email] wrote:

> I have an intermittent problem. It rarely occurs, but since I mainly use  
> the K2 for Contesting, it is a real annoyance. Suddenly all audio will go  
> dead. The only remedy is to recylce power to the unit. It is very possible  
> that this happens just after I make some control changes (like changing  
> bands and/or filters).
>
> I have also had one other strange occurance, that may or may not be  
> related. The LEDs on the KAT-2 will all go dark, and stay that way. I  
> believe the unit still tunes, but no SWR indicators on the panel at all.  
> Again, the only fix is to recycle power to the unit.
>
> Any ideas? I am guessing a communication problem, maybe AUX Bus related?
>
> 73,
>
> Tom, KG3V
>  
>

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