[Hallicrafters] SX-101 WWV problem cont.

[Edward B Richards]

Hi Wayne;

Sounds like the oscillator is not running or on the wrong frequency. Can
you measure the injection frequency? Good luck.

Ed Richards K6UUZ


On Sat, 14 Feb 2004 09:03:38 -0800 (PST) Wayne Light
<hwlight at sbcglobal.net> writes:
> Thanks for those that responded to my first question, I now realize 
> that I did not give enough information about my SX-101 with the dead 
> band 7 (WWV).
>  
> I, of course, have "tweaked" the mixer and ant slugs for 10 mhz.  On 
> my version, the osc. coil is sealed shut from the factory (If I'm 
> looking at the correct coil it is welded shut - as are several 
> others).  I believe the crystal calibrator unit is not related to 
> the WWV band (except to calibrate the freq).  The receiver seems to 
> be just fine, with the exception of a dead WWV Band.  I do get noise 
> but even with the sig. generator putting out max signal...nothing.  
> I did clean the bandswitch until it sparkles.  I did a complete 
> alignment (twice).  My radio has an ink stamp on the chassis "MARK 
> 3".  I think it is about the same as the MARK 2 but not sure...that 
> is the schematic I'm using.
>  
> Is there some capacator or other part that might just shut down this 
> one band?  It is probably something obvious but after going over 
> everything twice...still escapes me what could cause this.  Some of 
> you experts will probably know exactly what could cause this.
>  
> Thanks guys for ANY ideas.
>  
> Wayne
> 
> 
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