From garyskillicorn at hotmail.com  Tue Mar  5 09:25:54 2019
From: garyskillicorn at hotmail.com (gary skillicorn)
Date: Tue, 5 Mar 2019 14:25:54 +0000
Subject: [1000mp] Display Dead FT-1000MP
Message-ID: <BN8PR10MB3250943BFAAFB472662A065ACA720@BN8PR10MB3250.namprd10.prod.outlook.com>

It was not a gradual dimming but a sudden loss of the display preceded by a faint smell of a hot component. Performance otherwise is ok. Before I dig in to inspect the inverter board anyone have ideas of what I'll likely find.  Anyone have experience with inverter boards sold on Ebay?  I'd rather not go the LED display replacement mod unless I have to.
Gary  K3GS

From k8ac at k8ac.net  Tue Mar  5 10:27:42 2019
From: k8ac at k8ac.net (Floyd Sense)
Date: Tue, 5 Mar 2019 10:27:42 -0500
Subject: [1000mp] 1000mp Digest, Vol 133, Issue 1
In-Reply-To: <mailman.5020.1551795960.2818.1000mp@mailman.qth.net>
References: <mailman.5020.1551795960.2818.1000mp@mailman.qth.net>
Message-ID: <5b32d0a9-db78-8874-c4d1-3946ebf8c4e2@k8ac.net>

Gary - I had the same problem on my Mark V a few months ago.? No need to 
think about replacing the inverter board unless you determine that the 
transformer is shot. First thing to do is to replace the electrolytic 
cap on the board.? You will have one or two surface mount fuses on the 
board and one of those is likely open.? You can buy a replacement from 
Mouser (or maybe Yaesu). If a previous owner has replaced the fuse(s) 
with a piece of wire, make sure to reinstall a fuse. These parts can be 
replaced for a couple of bucks or less.? When you have that problem 
fixed, consider shortening the high voltage leads coming out of the 
inverter board.? They're likely a few inches longer than they need to be 
and your display may brighten up when these leads are shortened.

The LED replacement route has gotten a bit more difficult as the USA 
supplier of the hardware no longer sells it.? You can, however, buy what 
you'd need from a ham in Spain (call escapes me at the moment) for 
somewhere around $125.

73, Floyd - K8AC
> Message: 6
> Date: Tue, 5 Mar 2019 14:25:54 +0000
> From: gary skillicorn <garyskillicorn at hotmail.com>
> To: "1000mp at mailman.qth.net" <1000mp at mailman.qth.net>
> Subject: [1000mp] Display Dead FT-1000MP
> Message-ID:
> 	<BN8PR10MB3250943BFAAFB472662A065ACA720 at BN8PR10MB3250.namprd10.prod.outlook.com>
> 	
> Content-Type: text/plain; charset="iso-8859-1"
>
> It was not a gradual dimming but a sudden loss of the display preceded by a faint smell of a hot component. Performance otherwise is ok. Before I dig in to inspect the inverter board anyone have ideas of what I'll likely find.  Anyone have experience with inverter boards sold on Ebay?  I'd rather not go the LED display replacement mod unless I have to.
> Gary  K3GS
>
>


From kc1diw at gmail.com  Tue Mar  5 13:51:39 2019
From: kc1diw at gmail.com (John MacDonald)
Date: Tue, 5 Mar 2019 13:51:39 -0500
Subject: [1000mp] 1000mp Digest, Vol 133, Issue 1
In-Reply-To: <5b32d0a9-db78-8874-c4d1-3946ebf8c4e2@k8ac.net>
References: <mailman.5020.1551795960.2818.1000mp@mailman.qth.net>
	<5b32d0a9-db78-8874-c4d1-3946ebf8c4e2@k8ac.net>
Message-ID: <42F6F280-A90C-4F1E-8676-2D73DC8C9325@gmail.com>


Gary, A while back I noticed this internet site for a repair service that specializes in Yaesu, and I _think_ you can call them and get advice: http://www.hamradiobug.com/ <http://www.hamradiobug.com/>. I have not used them myself.  I know there are other repair outlets that will give advice if you call in. 

Another tip is to search on Youtube.com <http://youtube.com/> and Google.com <http://google.com/> for something like ?yaesu FT-1000 Mark V repair? and probably come up with instructions on navigating the guts of these splendid transceivers. I don?t think I could do it because I don?t have the workspace. I recall there is a YouTube channel called ?MrCarlsonsLab? showing a teardown and repair.

Good luck. I hope this helps.
John, KC1DIW



> On Mar 5, 2019, at 10:27 AM, Floyd Sense <k8ac at k8ac.net> wrote:
> 
> Gary - I had the same problem on my Mark V a few months ago.  No need to think about replacing the inverter board unless you determine that the transformer is shot. First thing to do is to replace the electrolytic cap on the board.  You will have one or two surface mount fuses on the board and one of those is likely open.  You can buy a replacement from Mouser (or maybe Yaesu). If a previous owner has replaced the fuse(s) with a piece of wire, make sure to reinstall a fuse. These parts can be replaced for a couple of bucks or less.  When you have that problem fixed, consider shortening the high voltage leads coming out of the inverter board.  They're likely a few inches longer than they need to be and your display may brighten up when these leads are shortened.
> 
> The LED replacement route has gotten a bit more difficult as the USA supplier of the hardware no longer sells it.  You can, however, buy what you'd need from a ham in Spain (call escapes me at the moment) for somewhere around $125.
> 
> 73, Floyd - K8AC
>> Message: 6
>> Date: Tue, 5 Mar 2019 14:25:54 +0000
>> From: gary skillicorn <garyskillicorn at hotmail.com>
>> To: "1000mp at mailman.qth.net" <1000mp at mailman.qth.net>
>> Subject: [1000mp] Display Dead FT-1000MP
>> Message-ID:
>> 	<BN8PR10MB3250943BFAAFB472662A065ACA720 at BN8PR10MB3250.namprd10.prod.outlook.com>
>> 	
>> Content-Type: text/plain; charset="iso-8859-1"
>> 
>> It was not a gradual dimming but a sudden loss of the display preceded by a faint smell of a hot component. Performance otherwise is ok. Before I dig in to inspect the inverter board anyone have ideas of what I'll likely find.  Anyone have experience with inverter boards sold on Ebay?  I'd rather not go the LED display replacement mod unless I have to.
>> Gary  K3GS
>> 
>> 
> 
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From n2mg at contesting.com  Sat Mar  9 15:15:21 2019
From: n2mg at contesting.com (Mike Gilmer, N2MG)
Date: Sat, 9 Mar 2019 15:15:21 -0500
Subject: [1000mp] Display Dead FT-1000MP
In-Reply-To: <BN8PR10MB3250943BFAAFB472662A065ACA720@BN8PR10MB3250.namprd10.prod.outlook.com>
References: <BN8PR10MB3250943BFAAFB472662A065ACA720@BN8PR10MB3250.namprd10.prod.outlook.com>
Message-ID: <CAJBpMouLP=aphFgZQZW6vXx4kkfbWjeth+LGNuKBrZDPE7JJAg@mail.gmail.com>

Gary

In my case I found that the thermal fuse on the inverter board had fried.
I wrote up a description of the repair and it's available on VA3CR's
excellent resource:

http://www.va3cr.net/1000MP/Problems/DisplayFailure.htm

Hope that helps.

Mike N2MG

On Tue, Mar 5, 2019 at 9:26 AM gary skillicorn <garyskillicorn at hotmail.com>
wrote:

> It was not a gradual dimming but a sudden loss of the display preceded by
> a faint smell of a hot component. Performance otherwise is ok. Before I dig
> in to inspect the inverter board anyone have ideas of what I'll likely
> find.  Anyone have experience with inverter boards sold on Ebay?  I'd
> rather not go the LED display replacement mod unless I have to.
> Gary  K3GS
> ______________________________________________________________
> 1000mp mailing list
> Home: http://mailman.qth.net/mailman/listinfo/1000mp
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:1000mp at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>