[1000mp] FT 1000 MP AC POWER SUPPLY

Sun, 15 Feb 2004 19:24:30 -0500

If the problem is with the thermal fuse on the inverter board for the
display, you should still see other indications of the radio's turning on
(the LEDs for the filter selections should be lit).  If you don't see them
lighting, it's not the inverter board issue.

Also, if the display ever does come on (as you said it did later) then,
again, the thermal fuse is not the problem.  Once the fuse pops...it's
popped.

Many users of the MP have reported (as I have) witnessing the VERY slow
(tens-of-seconds to a minute or so) turn on of the display.  I don't think
anyone has definitively determined just what causes that.  There have been
some guesses (cold ambient temperatures, prolonged off periods).

I'd check the FT1000MP section on va3cr.net, especially the Settings and
Troubleshooting section:

http://www.va3cr.net/index/settings%20and%20troubleshooting.html

(Look for "Display problems" and a few others)

Good luck.

Mike N2MG

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Franklyn Brooker
> Sent: Sunday, February 15, 2004 7:03 PM
> To: [email protected]
> Subject: Re: [1000mp] FT 1000 MP AC POWER SUPPLY
>
>
> Hi Gang,
>
> I am having a problem with my FT 1000MP turning on.
>
> It sometimes takes a few minutes, sometimes lots longer. (sometimes with a
> funny burping noise from the speaker)
>
> On Friday I turned  the power switch on and by evening it had not come on.
>
> Lo and behold today I turned the radio on and came up in about 10 secs.
> Stayed on all day and OK.
>
> I was looking through my circuit diagrams that came with the
> radio and don't
> see a diagram for the AC power supply (internal) which is apparently an FP
> 25 and shown on the block diagram as assembly Q7000166.
>
> Any help with the diagram or point me in the right direction,
> before I open
> up the innards (with a sledgehammer and 200w soldering iron)
>
>  I seem to remember that there might be a thermal fuse in the
> system (or was
> it only in the display).
>
> Looking forward to a response
>
> Thanks
>
> Frank
> 9Y4VU
>
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