FT 100D
I sometimes get this with the FT 90R.
FT 100 etc use multi function switching on 2 lines for all functions, if SW1
(pin 6) sees 27k to ground mic transmits, 0 on the ft 90 is packet ptt etc
see http://www.k0lee.com/mic.htm.
If the mic PTT switch is resistive, oxidized or dirty you get up or down and
Acc if very dirty.
Andrew
>From: yaesu-request@contesting.com
>Reply-To: yaesu@contesting.com
>To: yaesu@contesting.com
>Subject: Yaesu Digest, Vol 50, Issue 7
>Date: Wed, 14 Feb 2007 06:33:57 -0500
>
>Send Yaesu mailing list submissions to
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>
>Today's Topics:
>
> 1. FT-100D, wild behavior randomly on PTT (fire-eyes)
> 2. Re: FT-100D, wild behavior randomly on PTT (Eric Lowell)
> 3. Re: FT-100D, wild behavior randomly on PTT (Gene - N0DQS)
> 4. FT-857 (WA3GIN in Alex. City, VA)
> 5. Re: FT-857 (kd4e)
> 6. Re: FT-857 (WA3GIN in Alex. City, VA)
> 7. Re: FT-857 (kd4e)
> 8. FT-415 memory backup? (Michael Tortorella)
> 9. ft 757 gx-II problem (wayne)
> 10. Serial Number and year of Manufacture. (Graham Shortreed)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Tue, 13 Feb 2007 16:08:38 -0500
>From: fire-eyes <sgtphou@fire-eyes.org>
>Subject: [Yaesu] FT-100D, wild behavior randomly on PTT
>To: yaesu@contesting.com
>Message-ID: <45D228D6.3040508@fire-eyes.org>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>Hello List,
>
>I am having a curious and aggravating problem. I have an FT-100D. On 2M
>(the only band I have an antenna for), i get an intermittent issue when
>I press PTT.
>
>Sometimes it will transmit as expected. Other times, perhaps 30% of the
>time, it acts as if the PTT switch is dirty or bad. It then either fails
>to transmit, or does so in a very rapid on/off/on/off pattern. At the
>same time, it acts as if I am pushing either the up or down button on
>the top of the mic.
>
>When this issue happens, it seems to be "down" that is somehow triggered
>more than up. Perhaps 80% of the time.
>
>I have taken apart the MH-36b microphone. It looks okay in there, though
>I do not have any tools to do further testing. I was not able to get the
>board to separate from the mic body.
>
>Could this be a hairline crack in the board, which is usually making
>contact fine but other times is not, which then somehow spits out
>incorrect signals to the radio?
>
>I heard one idea from another ham, who mentioned that it could be RF
>getting back into the shack. However this problem happens just as
>randomly on 1W as it does at 50W. I have tried in FM and SSB, still
>seems the same.
>
>It was also suggested that I try to key up the radio in another manner,
>such as a CW key, however I do not have one at this point. Nor the tools
>or much of anything to build one, as I've been out of the hobby for a
>number of years.
>
>My match is good.
>
>Does this all sound familiar to anybody?
>--
>"I've missed more than 9000 shots in my career. I've lost almost 300
>games. 26 times, I've been trusted to take the game winning shot and
>missed. I've failed over and over and over again in my life. And that is
>why I succeed." - Michael Jordan
>
>
>------------------------------
>
>Message: 2
>Date: Tue, 13 Feb 2007 16:49:06 -0500
>From: "Eric Lowell" <elowell@midmaine.com>
>Subject: Re: [Yaesu] FT-100D, wild behavior randomly on PTT
>To: <sgtphou@fire-eyes.org>, <yaesu@contesting.com>
>Message-ID: <000c01c74fb8$c9472c10$e326fc42@EricDell>
>Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
>What is the power supply voltage doing when this is going on?
>
>Does it do it when transmitting into a dummy load rated for 2m and up?
>
>Just a couple of things to check.
>
>Good luck es 73 de W1EL
>----- Original Message -----
>From: "fire-eyes" <sgtphou@fire-eyes.org>
>To: <yaesu@contesting.com>
>Sent: Tuesday, February 13, 2007 4:08 PM
>Subject: [Yaesu] FT-100D, wild behavior randomly on PTT
>
>
> > Hello List,
> >
> > I am having a curious and aggravating problem. I have an FT-100D. On 2M
> > (the only band I have an antenna for), i get an intermittent issue when
> > I press PTT.
> >
> > Sometimes it will transmit as expected. Other times, perhaps 30% of the
> > time, it acts as if the PTT switch is dirty or bad. It then either fails
> > to transmit, or does so in a very rapid on/off/on/off pattern. At the
> > same time, it acts as if I am pushing either the up or down button on
> > the top of the mic.
> >
> > When this issue happens, it seems to be "down" that is somehow triggered
> > more than up. Perhaps 80% of the time.
> >
> > I have taken apart the MH-36b microphone. It looks okay in there, though
> > I do not have any tools to do further testing. I was not able to get the
> > board to separate from the mic body.
> >
> > Could this be a hairline crack in the board, which is usually making
> > contact fine but other times is not, which then somehow spits out
> > incorrect signals to the radio?
> >
> > I heard one idea from another ham, who mentioned that it could be RF
> > getting back into the shack. However this problem happens just as
> > randomly on 1W as it does at 50W. I have tried in FM and SSB, still
> > seems the same.
> >
> > It was also suggested that I try to key up the radio in another manner,
> > such as a CW key, however I do not have one at this point. Nor the tools
> > or much of anything to build one, as I've been out of the hobby for a
> > number of years.
> >
> > My match is good.
> >
> > Does this all sound familiar to anybody?
> > --
> > "I've missed more than 9000 shots in my career. I've lost almost 300
> > games. 26 times, I've been trusted to take the game winning shot and
> > missed. I've failed over and over and over again in my life. And that is
> > why I succeed." - Michael Jordan
> > _______________________________________________
> > Yaesu mailing list
> > Yaesu@contesting.com
> > http://lists.contesting.com/mailman/listinfo/yaesu
> >
>
>
>------------------------------
>
>Message: 3
>Date: Tue, 13 Feb 2007 16:25:46 -0600
>From: "Gene - N0DQS" <gmitch@iowatelecom.net>
>Subject: Re: [Yaesu] FT-100D, wild behavior randomly on PTT
>To: <Yaesu@contesting.com>
>Message-ID: <057001c74fbd$e8ac55d0$0200a8c0@homeoffice1>
>Content-Type: text/plain; format=flowed; charset="Windows-1252";
> reply-type=original
>
>I had this happen to me, I discovered that the mic connector had a fault in
>the end. I cut the end off and installed a new connector and problem went
>away. I had more of an intermittent problem when I would move the cable
>just
>right it would drop the ptt and start scanning. Might not be the same issue
>but that was my experience.
>
>gene
>N0DQS
>
>
>
>------------------------------
>
>Message: 4
>Date: Tue, 13 Feb 2007 18:00:37 -0500
>From: "WA3GIN in Alex. City, VA" <wa3gin@erols.com>
>Subject: [Yaesu] FT-857
>To: <Yaesu@contesting.com>
>Message-ID: <002c01c74fc2$c96fde30$6301a8c0@TS480WA3GIN>
>Content-Type: text/plain; charset="US-ASCII"
>
>Hi Folks,
>
>
>
>Wonder if anyone has experienced this anomaly with the FT-857:
>
>
>
>When operating 2m FM at 50 watts the rig will shut down on key-up using
>hand
>mic. This doesn't happen every transmit cycle but during a round table
>conversation it may occur several times. Sometimes the rig restores to
>normal operation status other times it is left in the off state and I have
>to press the on button to activate the unit.
>
>
>
>When I reduced power output to 25 watts there problem is not reproducible.
>
>
>
>I've watched the battery voltage which in rec. is about 14.1 but in xmit
>the
>voltage drops to 12.8. I wonder if the unit is powering down thinking the
>operating voltage is too low?
>
>
>
>Thoughts are welcome.
>
>
>
>73,
>
>dave
>
>wa3gin
>
>
>
>
>
>------------------------------
>
>Message: 5
>Date: Tue, 13 Feb 2007 19:08:10 -0500
>From: kd4e <kd4e@verizon.net>
>Subject: Re: [Yaesu] FT-857
>To: "WA3GIN in Alex. City, VA" <wa3gin@erols.com>
>Cc: FT897@yahoogroups.com, Yaesu@contesting.com
>Message-ID: <45D252EA.5080708@verizon.net>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>Are you using a MH-59 mic?
>
>There is a known RFI problem, easily solved using
>some toroids.
>
> > Wonder if anyone has experienced this anomaly with the FT-857:
> >
> > When operating 2m FM at 50 watts the rig will shut down on key-up using
>hand
> > mic. This doesn't happen every transmit cycle but during a round table
> > conversation it may occur several times. Sometimes the rig restores to
> > normal operation status other times it is left in the off state and I
>have
> > to press the on button to activate the unit.
> >
> > When I reduced power output to 25 watts there problem is not
>reproducible.
> >
> > I've watched the battery voltage which in rec. is about 14.1 but in xmit
>the
> > voltage drops to 12.8. I wonder if the unit is powering down thinking
>the
> > operating voltage is too low?
> >
> > Thoughts are welcome.
> >
> > 73, dave wa3gin
>
>
>
>--
>
>Thanks! & 73, doc, KD4E
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Projects: http://ham-macguyver.bibleseven.com
>Personal: http://bibleseven.com
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>------------------------------
>
>Message: 6
>Date: Tue, 13 Feb 2007 19:35:38 -0500
>From: "WA3GIN in Alex. City, VA" <wa3gin@erols.com>
>Subject: Re: [Yaesu] FT-857
>To: <kd4e@verizon.net>
>Cc: FT897@yahoogroups.com, Yaesu@contesting.com
>Message-ID: <003701c74fd0$10241320$6301a8c0@TS480WA3GIN>
>Content-Type: text/plain; charset="US-ASCII"
>
>Don't have the mic model type at this time...it is the standard mic shipped
>with the radio. The remote head is mounted in the front of the truck dash
>with antenna on the roof of the cab. Where would I put the toroids? I've
>already got toroids on the power leads, remote head leads.
>
>73,
>dave
>wa3gin
>
>
>-----Original Message-----
>From: kd4e [mailto:kd4e@verizon.net]
>Sent: Tuesday, February 13, 2007 7:08 PM
>To: WA3GIN in Alex. City, VA
>Cc: Yaesu@contesting.com; FT897@yahoogroups.com
>Subject: Re: [Yaesu] FT-857
>
>Are you using a MH-59 mic?
>
>There is a known RFI problem, easily solved using
>some toroids.
>
>
>
>
>
>------------------------------
>
>Message: 7
>Date: Tue, 13 Feb 2007 20:11:34 -0500
>From: kd4e <kd4e@verizon.net>
>Subject: Re: [Yaesu] FT-857
>To: "WA3GIN in Alex. City, VA" <wa3gin@erols.com>
>Cc: FT897@yahoogroups.com, Yaesu@contesting.com
>Message-ID: <45D261C6.8000700@verizon.net>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>I believe that they were mounted inside the
>mic head at the base where the mic cord enters
>the mic head.
>
>My FT-897D came with the MH-31 mic.
>
>Do you recall if you mic has a DTMF pad? If so
>it is probably the MH-59, if not then the problem
>is likely not in the mic.
>
> > Don't have the mic model type at this time...it is the standard mic
>shipped
> > with the radio. The remote head is mounted in the front of the truck
>dash
> > with antenna on the roof of the cab. Where would I put the toroids?
>I've
> > already got toroids on the power leads, remote head leads.
> >
> > 73,
> > dave
> > wa3gin
> >
> >
> > Are you using a MH-59 mic?
> >
> > There is a known RFI problem, easily solved using
> > some toroids.
>
>
>
>--
>
>Thanks! & 73, doc, KD4E
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Projects: http://ham-macguyver.bibleseven.com
>Personal: http://bibleseven.com
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>------------------------------
>
>Message: 8
>Date: Wed, 14 Feb 2007 01:08:51 -0500
>From: "Michael Tortorella" <w2iy@verizon.net>
>Subject: [Yaesu] FT-415 memory backup?
>To: <yaesu@contesting.com>
>Message-ID: <FFEELFBCHJPLNMLOMONFKEOGDBAA.w2iy@verizon.net>
>Content-Type: text/plain; charset=iso-8859-1
>
>Good evening to the list,
>I hope someone can help me figure out why my FT-415 will not hold memories
>after power off (even for a short while, like seconds). The radio programs
>and operates normally, but the memories disappear when I power off. I
>opened it up to see if there was a backup battery that needed to be
>replaced
>but I could not find one. Perhaps someone has a lead on a service manual
>or
>page that describes this issue?
>aTdHvAaNnKcSe and 73
>Mike W2IY
>
>
>
>
>------------------------------
>
>Message: 9
>Date: Wed, 14 Feb 2007 09:28:12 -0000
>From: "wayne" <ml148@tesco.net>
>Subject: [Yaesu] ft 757 gx-II problem
>To: <yaesu@contesting.com>
>Message-ID: <001401c7501a$78e1bc60$59df0250@marie>
>Content-Type: text/plain; charset="iso-8859-1"
>
>Hi, I have got a 757 which has recently lost recieve volume on fm, all the
>other modes recieve fine, have looked at the bulb and shorted it out but
>still no volume on fm, help!!! does anyone have any idea what it could be.
>
>many thanks in advance
> wayne
>
>------------------------------
>
>Message: 10
>Date: Tue, 13 Feb 2007 18:05:58 -0800
>From: "Graham Shortreed" <gshortre@telus.net>
>Subject: [Yaesu] Serial Number and year of Manufacture.
>To: <yaesu@contesting.com>
>Message-ID: <000601c74fdc$aba38bd0$2f2306cf@yourvp7x3s9ctm>
>Content-Type: text/plain; charset="iso-8859-1"
>
>I know that this has been discussed before, but I want to confirm my
>suspicion. I know that the 1st number in the serial number is the year of
>manufacture (correct?). What I need to know is what years the rig was
>made. I'm going to be looking for a 990, and want to get the latest
>production and make sure that I get ver 1.3 ROM.
>
>73 to all and thanks for your input.
>
>Graham
>VE7ABC
>
>------------------------------
>
>_______________________________________________
>Yaesu mailing list
>Yaesu@contesting.com
>http://lists.contesting.com/mailman/listinfo/yaesu
>
>
>End of Yaesu Digest, Vol 50, Issue 7
>************************************
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