[1000mp] Tuner malfunction

[Jerry Spring]

Marcus,

That is great that you found the problem.  I never
would have thought of this.  How did you discover
this?

I'm glad your rig is working again and hope to see you
on the air.

Jerry
VE6CNU


--- pp5ms at pp5ms.com wrote:

> Hello Jerry,
> 
> Thank you for your sugestion..
> 
> After some days work on the radio, I have found the
> problem!
> 
> The 25MHz resonator that generate the clock in the
> radio CPU became out of 
> frequency.
> 
> The radio CPU "talk" to the tunner CPU via serial,
> and the baud-rate are 
> wrong because this resonator is out of frequency.
> 
> Using a frequency counter I found 24.21MHz.
> 
> After change the resonator for a new one, the
> counter shows 24.98MHz and the 
> tuner start to work very fine again.
> 
> I have returned the old resonator to the radio and
> check again. The problem 
> came again, the tuner stop to work, confirming that
> the resonatos are the 
> cause.
> 
> Thank you and to all friends that have send me
> sugestions to fix this 
> problem.
> 
> Regards,
> Marcus - PP5MS
> 
> 
> ----- Original Message ----- 
> From: "Jerry Spring" <springjl at yahoo.com>
> To: "All about Yaesu 1000mp"
> <1000mp at mailman.qth.net>
> Sent: Monday, October 06, 2008 5:59 PM
> Subject: Re: [1000mp] Tuner malfunction
> 
> 
> > Marcus,
> >
> > I have owned an MP for 3 years now and it has only
> had
> > two problems while in my possession.  The first
> one
> > had to do with cold solder joints on the VXO board
> (a
> > very common problem), and the second one was a
> sticky
> > relay that wouldn't allow transmitting on 40m. 
> From
> > the other comments here, as well as my own
> experience,
> > it sounds like another sticky relay or cold solder
> > joint problem.  You are probably on the right
> track to
> > take out the tuner and reseat it - or at least
> inspect
> > the connections and relays for poor continuity.  I
> > wish I could be more help.
> >
> > Jerry
> >
> >
> > --- pp5ms at pp5ms.com wrote:
> >
> >> Hello Alex,
> >>
> >> Thank you for counting your experience with the
> >> FT-1000MP.
> >>
> >> Reading the text, seems to me that the cause can
> be
> >> some bad-contact or
> >> locked relay. I go to try to remove tuner outside
> >> and to reflow the PCB.
> >>
> >> Can be some broken solder. Later I come back to
> tell
> >> if I have success.
> >>
> >> Thank you again!
> >>
> >> 73,
> >> Marcus - PP5MS
> >>
> >>
> >> ----- Original Message ----- 
> >> From: "Alex Malyava" <alex.k2bb at gmail.com>
> >> To: "All about Yaesu 1000mp"
> >> <1000mp at mailman.qth.net>
> >> Sent: Monday, October 06, 2008 4:58 PM
> >> Subject: Re: [1000mp] Tuner malfunction
> >>
> >>
> >> I had similar behaviour with my 1000MP (regular,
> not
> >> mark) for almost
> >> a year about two years ago.
> >> I also did everything I could - resetting it,
> >> replacing battries etc -
> >> it did not help.
> >> I was about to send it for service along with a
> few
> >> other things like
> >> broken push button I never use etc...
> >>
> >> I never did that and then I moved to my new house
> >> and tuner started to
> >> work again once in a while :)
> >> I happened to have a vertical... It was around
> the
> >> time of VP6DX
> >> expedition when I tried and finally worked them
> on
> >> 80m into barely
> >> tuned antenna. There was some very familiar to
> some
> >> of us slight smell
> >> of burning electric and dust and you know what?
> That
> >> tuner works great
> >> since then...
> >>
> >> I dont know what happened - sticky relay shaken
> >> durinng the move, or
> >> excessive dust burned out. Who knows :)
> >>
> >> On Mon, Oct 6, 2008 at 3:35 PM, 
> <pp5ms at pp5ms.com>
> >> wrote:
> >> > Hi Jerry, I´m trying to explain, apologize my
> bad
> >> english.
> >> >
> >> > My rig work TX 100%, no problem if I not use
> the
> >> tuner.
> >> >
> >> > When the "Wait" comes on, the rig still
> receiving,
> >> like the PTT command is
> >> > missing, the transmit don´t comes on to make
> the
> >> tune work.
> >> >
> >> > About SWR, I have test using a 50 ohms
> dumy-load
> >> an one antena at 1.5:1,
> >> > but
> >> > since the rig never turn on the transmitter
> (via
> >> tuner command) the tuner
> >> > don´t know the SWR on the output. The "High
> SWR"
> >> never cames on.
> >> >
> >> > You ask me "is the tuner doing anything?". If I
> >> leave the tuner ON and
> >> > change the bands, I can listen the motors
> inside
> >> change the capacitors
> >> > positions, nothing more.
> >> >
> >> > Summarizing, everything seems to be well, but
> the
> >> tuner don´t put the rig
> >> > in
> >> > transmission to make the tunning.
> >> >
> >> > If I use the rig without the tuner, all work
> >> normal.
> >> >
> >> > I wait that my explanation has made to
> understand
> >> me, and hope you have
> >> > some
> >> > sugestion to me to try.
> >> >
> >> > 73,
> >> > Marcus - PP5MS
> >> >
> >> >
> >> >
> >> > ----- Original Message ----- From: "Jerry
> Spring"
> >> <springjl at yahoo.com>
> >> > To: "All about Yaesu 1000mp"
> >> <1000mp at mailman.qth.net>
> >> > Sent: Monday, October 06, 2008 2:51 PM
> >> > Subject: Re: [1000mp] Tuner malfunction
> >> >
> >> >
> >> >> Hi Marcus,
> >> >>
> >> >> I'm trying to understand the problem better. 
> I
> 
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