[Yaesu] FT-1000D frequency jumps

Hardy Landskov n7rt at cox.net
Sat Feb 13 06:06:11 PST 2010 

I had exactly the same problem. In fact there was a 16VDC electrolytic cap 
on that line and it was bad. I managed to shoe horn in a 25V cap. I had to 
replace the display also. Not for the faint of heart.....
73 Hardy N7RT


----- Original Message ----- 
From: "James Colville" <jimw7ry at gmail.com>
To: <dgmaley at commspeed.net>
Cc: <yaesu at contesting.com>
Sent: Friday, February 12, 2010 9:57 PM
Subject: Re: [Yaesu] FT-1000D frequency jumps


> 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 at 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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>> > 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 at ang.af.mil>
>> > Subject: Re: [Yaesu] FT-1000D CAT interface problem
>> > To: "w5rlm at w5rlm.com" <w5rlm at w5rlm.com>, "yaesu at contesting.com"
>> >       <yaesu at contesting.com>
>> > Message-ID:
>> >       <
>> D04F834AC0FA1D48AC08A6065E61482539D68CA808 at 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 at contesting.com 
>> > [mailto:yaesu-bounces at contesting.com]
>> > On Behalf Of Randy Moody
>> > Sent: Sunday, February 07, 2010 4:04 AM
>> > To: yaesu at 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 at 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 at gmail.com>
>> > Subject: [Yaesu] FT-1000 RX Mix and frequency jump problem
>> > To: yaesu at contesting.com
>> > Message-ID: <4B71307A.3050505 at 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 at contesting.com
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>> >
>> >
>> > End of Yaesu Digest, Vol 86, Issue 3
>> > ************************************
>> >
>>
>>
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