[1000mp] 1000MP Clarifier Problem

[Tom Horton]

I think most everyone experiences this from one time to another.
I have tried several things short of replacing the control itself.
  At times if I just thump the control on the front of the knob, it
will work for long enough to do what I am doing right then. Super Technical 
Fix, huh?
  Another thing I have heard is to put th eradio on it's back then dribble 
a GOOD control cleaner
on th einside of the shaft and let it run through to the control.
I have not tried this.
   But, I think th ebest temporary fix is just to turn slowly.
If you do replace th econtrol, please came back here and tell
us how it went.
73, Tom K5IID




At 16:52 2/22/03 -0500, you wrote:
>At 03:25 PM 2/22/03 -0500, you wrote:
>>I have a problem with my RIT and XIT on the 1000MP and suspect the 
>>clarifier may be faulty.  I'm wondering if anyone else has had this 
>>problem and/or could offer some suggestions as to what the signal looks 
>>like coming out of the clarifier control in case I need to trouble shoot.
>>The problem is frequency jumps while turning the clarifier knob.  It 
>>happens in both RIT and XIT and happens more frequently when tuning down 
>>frequency.  The rx frequency will suddenly jump positive by as much as 
>>250Hz.  It happens less frequently if I turn the knob very slowly.  This 
>>sounds like it could be an optical control used for the clarifier, but I 
>>don't know.  It does not appear to be heat-related.  Also, does anyone 
>>know a replacement part for the clarifier?  I don't have the tech service 
>>manual.
>
>This is a standard problem -- typically more in one direction than the 
>other and speed sensitive.  It's a mechanical encoder of some sort, 
>according to Yaesu.  Probably a bear to get at, but simple to fix once 
>you're there.  Why not call Yaesu for the part?
>
>
>73, Pete N4ZR
>The World HF Contest Station Database was updated 1 Feb 03.
>Are you current? www.pvrc.org/wcsd/wcsdsearch.htm
>
>
>
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