I'm finding that shorted and open electrolytic caps. I had noise in the
receiver. The noise changed when I turned on the sub receiver. To make a
long story short, the electrolytic caps in the DC-DC converter that powers
the florescent display were bad. There is a pi net filter on the 13 volt
line that supplies the converter. The caps in the pi net filter were bad. A
simple check of the 13 volt line with an oscilloscope showed a horrible
noise on that buss.
After the cap replacement, the bus was noise free.
73
Jim W7RY
On Wed, Feb 10, 2010 at 7:38 AM, Dave Maley <dgmaley@commspeed.net> wrote:
> To those that have strange frequency jumps or other quirks on a 1000D.
> These radios are now old enough to be affected by intermittant contacts.
> It all comes down to taking the time to clean a lot of contacts. Suggest
> that you remove each connector around the receiver board and synthizer
> board, apply a small amount of a good contact cleaner, with a q-tip. Take
> your time and plan on doing this for a while. There's a lot of them and
> the wire is old. Work the connector on and off a couple of times, then
> move on to the next one.
> After you have completed this, check for loose hardware, especially around
> these boards and the power supply. If the sub-receiver has any issues, do
> this first before any troubleshooting.
> While you have it open, it's a good time to remove the fan, clean and lube
> it. The fan rests on some rubber shock mounts. See if they have
> hardened. If so, a well stocked hardware store will have something like
> it.
> This radio is put together with a ton of screws. They're all a little
> different. Get them all back where they came out.
> The bulb behind the meter is odd. Yaesu has them. The rubber skirt
> around the main and sub VFO knobs can be replaced if it's swelled up from
> hand oil. Yaesu has them too.
> A little front panel cleaning with an old tooth brush can make it look
> like new again.
> Dave
> WA0ZZG
>
>
>
>
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> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of Yaesu digest..."
> >
> >
> > Today's Topics:
> >
> > 1. Re: FT-1000D CAT interface problem
> > (Noller, Gregory A CTR USAF ANG 299th NOSS/299th NOSC)
> > 2. FT-1000 RX Mix and frequency jump problem (John Ahlbom)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Mon, 8 Feb 2010 16:02:33 -0600
> > From: "Noller, Gregory A CTR USAF ANG 299th NOSS/299th NOSC"
> > <gregory.noller.ctr@ang.af.mil>
> > Subject: Re: [Yaesu] FT-1000D CAT interface problem
> > To: "w5rlm@w5rlm.com" <w5rlm@w5rlm.com>, "yaesu@contesting.com"
> > <yaesu@contesting.com>
> > Message-ID:
> > <
> D04F834AC0FA1D48AC08A6065E61482539D68CA808@APC2-CL-02.ang.ds.af.mil>
> > Content-Type: text/plain; charset="us-ascii"
> >
> > My FT-1000MP Mk V will only "work" with HRD/CAT -meaning display the
> > correct Frequency -when it is in VFO mode. That's all I can offer.
> >
> >
> > W0GAN
> >
> >
> > -----Original Message-----
> > From: yaesu-bounces@contesting.com [mailto:yaesu-bounces@contesting.com]
> > On Behalf Of Randy Moody
> > Sent: Sunday, February 07, 2010 4:04 AM
> > To: yaesu@contesting.com
> > Subject: [Yaesu] FT-1000D CAT interface problem
> >
> > I have an FT-1000D which I dearly love and that I have been interfacing
> to
> > my PC for several years via the CAT interface
> >
> > The CAT interface quit working recently and I would really like to
> restore
> > that function.
> >
> > 1. At first I thought the program I use, TRX-Manager, might have become
> > corrupted so I reloaded it on my PC
> >
> > a. The CAT interface still did not appear to work
> >
> > 2. I next loaded Ham Radio Deluxe to see if that would work
> >
> > a. It still did not work.
> >
> > 3. I next acquired a new CAT interface cable thinking that maybe the
> TTL
> > level interface went bad
> >
> > a. That did not fix it either.
> >
> > 4. I next found some software called Com Stress by AGG Software, that
> > would exercise the com port itself
> >
> > a. The software seemed to indicate that the com port was working OK.
> >
> > 5. I next acquire something called an RS232 Mini-Tester which is a 25
> > pin
> > plug with lights on it to indicate the status of the various signals on
> > the
> > line TD, RTS, DSR, CD, RD, CTS, and DTR.
> >
> > a. That seemed to indicate the com port was working ok because the
> > lights
> > changed as the software exercised the com port.
> >
> >
> >
> > 6. Is there some way to test just the FT-1000D CAT interface itself to
> > determine if it is working or not?
> >
> > 7. Has anyone else ever had trouble with the CAT interface itself on
> the
> > FT-1000D?
> >
> > 8. If so, does anyone have any idea of how to fix the CAT interface?
> >
> >
> >
> > Thanks
> >
> > 73
> >
> > Randy -W5RLM
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Keep away from people who try to belittle your ambitions.
> >
> > Small people always do that, but the really great make you feel that you,
> > too, can become great. - Mark Twain
> >
> > Randy Moody
> >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > Yaesu mailing list
> > Yaesu@contesting.com
> > http://lists.contesting.com/mailman/listinfo/yaesu
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Tue, 09 Feb 2010 11:52:58 +0200
> > From: John Ahlbom <john.ahlbom@gmail.com>
> > Subject: [Yaesu] FT-1000 RX Mix and frequency jump problem
> > To: yaesu@contesting.com
> > Message-ID: <4B71307A.3050505@gmail.com>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> >
> > FT-1000 serial OG060181 1990 ?
> >
> > Problem 1:
> >
> > No sub receiver audio with RX Mix pot in clockwise position. S-meter
> > reflects, though. Appears to pick up band noise, but not on sub receiver
> > frequency displayed. Sub TX works OK on any given frequency. Dual and
> > split functions activated. Not a squelch problem.
> >
> > Problem 2.
> >
> > Frequency jump revisited, been on reflector 10 / 2008
> >
> > FT-1000, serial OG060181 (1990 ?) Problem and symptom:
> >
> > Sudden 300 Hz jump up in frequency both on transmit and main receiver
> >
> > reception, CW and SSB, LSB and USB. Audible change in passband sound.
> >
> > Happens 10 to 20 minutes after switch-on and usually returns to initial
> >
> > frequency after a few seconds or a minute. Repeats are not uncommon.
> >
> > Seldom noticeable after warm-up. Does not prevent operating, but is a
> >
> > nuisance. PLL Unit as well as IF Unit xtals X 2002, 12.280 MHz and
> >
> > X 2003, 12.283 MHz have been replaced to no avail.
> >
> > The rig being an icon is certainly old, but I have grown accustomed to
> > its performance in spite of
> >
> > above related shortcomings.
> >
> > Any correcting suggestions?
> >
> >
> > John Ahlbom, OH5NZ
> >
> >
> > ------------------------------
> >
> > _______________________________________________
> > Yaesu mailing list
> > Yaesu@contesting.com
> > http://lists.contesting.com/mailman/listinfo/yaesu
> >
> >
> > End of Yaesu Digest, Vol 86, Issue 3
> > ************************************
> >
>
>
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