[1000mp] 1000MP Clarifier Problem

Sat, 22 Feb 2003 22:41:28 -0500

Thanks for the info, Pete.  I will call Yaesu as soon as I verify what the
problem is.  It certainly appears to be the control.  I'd feel more
confident if I knew what the output of that encoder should look like on a
scope. Probably pulses, but I need to be a bit more precise than that.  I'll
have to say that the response from the 1000MP Email list is wonderful!  I've
received many messages after posting just today.  What a great resource.

73 de Jack/KV1E

----- Original Message -----
From: "Pete Smith" <[email protected]>
To: <[email protected]>
Sent: Saturday, February 22, 2003 4:52 PM
Subject: Re: [1000mp] 1000MP Clarifier Problem

> 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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