[1000mp] MK V stuck in XMIT

[Barrie Smith]

Well, it's nothing of the below.  This problem occurs with the RF drive on 
the MK V set to 0.

I've been using this same setup (same MK V, same amp for several years), 
with no problems.

I'm sure it's a stuck relay.  I just unplugged the line to the amp and put 
an ohm meter on it.  It reads essentially zero ohms with the radio on or 
off.

I'm sure I saw the name of a good Yaesu repair person on this list just 
recently.  I took no note of it then because I didn't need repair work done.

Anyone have that name?

Thank you,
Barrie, W7ALW
----- Original Message ----- 
From: "KR4HV" <kr4hv at numail.org>
To: "'All about Yaesu 1000mp'" <1000mp at mailman.qth.net>
Sent: Monday, March 14, 2011 4:27 PM
Subject: Re: [1000mp] MK V stuck in XMIT


> Could possibly be, but you might want to check for RF on your transmission
> line also.  RF will make all sorts of problems.  Also be sure the amp
> doesn't have a relay or keying problem.
>
> Are you keying an older amp that requires sinking a lot of current without 
> a
> proper interface?
>
> Just some places to start.
> KR4HV
>
> -----Original Message-----
> From: 1000mp-bounces at mailman.qth.net 
> [mailto:1000mp-bounces at mailman.qth.net]
> On Behalf Of Barrie Smith
> Sent: Monday, March 14, 2011 6:20 PM
> To: All about Yaesu 1000mp
> Subject: [1000mp] MK V stuck in XMIT
>
> Hello:
>
> Just recently my MK V has begun holding the amplifier in xmit mode.
>
> I've checked to see if it's in the amp, but it's not.
>
> This happens in both CW and fone mode.
>
> The MK V works FB by itself, but when I turn on the amp it often holds the
> amp in xmit.
>
> Is this a sticking relay?
>
> Any thoughts?
>
> 73, Barrie, W7ALW
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