[1000mp] FW: Problems on 18 and 21 Mhz

[jos tuts]

hey guys

I have  a transmit problem on all bands  except 1.8 mhz , 3.5 mhz and 7 mhz.

after resetting the pcu , still the same problem.
any idea?
kind  regards  ,
jos   on4atk
----- Original Message ----- 
From: "T David Cohen" <tdavid at eatel.net>
To: "'All about Yaesu 1000mp'" <1000mp at mailman.qth.net>
Sent: Tuesday, May 22, 2012 9:21 PM
Subject: Re: [1000mp] FW: Problems on 18 and 21 Mhz


> Kuipers,
>
> I had a similar problem with my MP (except my problem affected 7 MHz, 10 
> MHz
> and 14 MHz) and some knowable guys suggested that I check the local
> oscillator board (located under the antenna tuner in your MP).  There are
> apparently well known problems with deteriorated solder connections around
> some of the inductors.  You can download the relevant portions of the
> service manual from the web that will show where the board is located and
> which of the areas on the board apply to your particular problem (when
> looking at the board as it is mounted in the MP, the area to begin 
> checking
> would on the underside of the end closest to rear end of the transceiver).
> I struggled with mine and it's now working -- it definitely was a poor
> solder connection.  As I worked on it, I got frustrated and bought a new
> board from Yaesu (about $300) but when installed it wouldn't work in my MP
> -- I'm guessing that there were various manufacturing changes and the 
> board
> they sent probably applied to another version -- it just wouldn't
> communicate with the processor so I had to rely on re-soldering the 
> joints.
>
> The board can be dismounted from the transceiver while still connected. 
> To
> attempt to locate the problem area, you can GENTLY flex the board while 
> it's
> operation.  Leave an antenna connected to the tuner and, if you find the
> problem, the noise level will suddenly rise and you may again hear 
> signals.
> The data in the service manual contains information on how to align the
> board -- it's not complicated but you'll need a high impedance voltmeter 
> and
> maybe a frequency counter -- I don't recall for sure.   If you find and 
> fix
> a poor solder connection, you may NOT have to adjust the alignment so 
> don't
> worry about it if things start working again.
>
> Let me know if I can be of help.
>
> 73s and good luck,
>
> Dave Cohen, N7TC
>
>
>
> -----Original Message-----
> From: 1000mp-bounces at mailman.qth.net 
> [mailto:1000mp-bounces at mailman.qth.net]
> On Behalf Of w6bl at wamail.net
> Sent: Tuesday, May 22, 2012 1:21 PM
> To: All about Yaesu 1000mp
> Subject: Re: [1000mp] FW: Problems on 18 and 21 Mhz
>
>>  Hello Aan things to check band switching, dust mabie vacume, and
>> relays
>         main grounding conections to case, loose conetcions, check
>         solder joints with magnafing glass. may be helpfull. Jerry
>>
>>
>>
>> Van: theo [mailto:th.kuipers at hetnet.nl]
>> Verzonden: donderdag 17 mei 2012 21:33
>> Aan: '1000mp at mailman.qth.net'
>> Onderwerp: Problems on 18 and 21 Mhz
>>
>>
>>
>> Hallo,
>>
>>
>>
>> I have bought sometime ago a ft-1000mp.Now I found some  problems. On
>> the
>> 18
>> and 21 Mhz band I cannot receive anything only noise and the
>> transmission is also dead.
>>
>> Nothing works on these bands. He also give to much power on the other
>> bands (which i can use normal)  proximally  150 watts.
>>
>> What can be the problems and how can i solve them.
>>
>>
>>
>> With kindly regards,
>>
>>
>>
>> Kuipers
>>
>>
>>
>> PE1JMM
>>
>> ______________________________________________________________
>> 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
>>
>
>
> ______________________________________________________________
> 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
>
>
>
> ______________________________________________________________
> 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
>