Re: [Elecraft] T-1 tuner stopped tuning

2017-02-26 Thread Mark Petiford via Elecraft 
 Re:  " I have excactly (sic)  the same problem with the big MFJ-927 tuner and 
the preprogrammed chip replacement from the company made no cure"

No, wait, what???  You have the same problem with a tuner make by a different 
manufacturer?   It is time to start looking for items that are in your system 
no matter which tuner or antenna you are using.  Don't ignore the radio side of 
the tuner.  An intermittent short or open in a connector or coax on the INPUT 
side of the tuner will cause the tuner to be unable to figure out what 
frequency you are on since it can generate square waves with harmonics well 
above HF.  Look for items that are common no matter which tuner you are using, 
and don't forget the radio itself.

Mark
KE6BB

   
 

   
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Re: [Elecraft] T-1 tuner stopped tuning

2017-02-26 Thread Irma Linas 
Don, Jim, thanks.
Could be a processor, agree. Paradoxically, I have excactly  the same
problem with the big MFJ-927 tuner and the preprogrammed chip replacement
from the company made no cure, :).
The buttons seems like working for they do switching during the test mode.
 I'll definetely write to the Electaft tech support, they are quick and
friendly, once have helped me a lot by guiding through the fix of the K3
I/O
board.

Linas Ly2H


On 2017 vas. 26, sk at 21:40 Jim Miller  wrote:

> Are you sure the push button switches are working?
>
> Jim ab3cv
>
> On Feb 26, 2017, at 2:31 PM, Don Wilhelm  wrote:
>
> Linas,
>
> It sounds like a microprocessor problem, but I can't be sure.
> Do you know of any locals who also has a T1 and would be willing to try
> swapping the microprocessor?
>
> It may be heplful to contact Elecraft support even though you may not want
> to send it in for repair.
>
> 73,
> Don W3FPR
>
> > On 2/26/2017 2:09 PM, Irma Linas wrote:
> > Hello,
> > My Elecrat T-1 mini-autotuner stopped working after some 10 years of
> > flawless service...
> > It started behaving erratically , it either does not react to the RF
> input
> > , or if it does then never finds the tune ending up with the red LED on.
> > It is not related with the antenna type,  it is all the same even with
> the
> > perfectly tuned R-8 on. The self LC test procedure as described in the
> > manual , though went ok. Disconnecting and re-connecting the battery
> doesn'
> > help. I also tried to eject and reinstal the microprocessor chip to no
> > avail. Visual inspection of the boards brought nothing suspicious and
> > resoldering the BNC contacts hasn't made any difference.
> >
> > Any wise advise is welcome ! ( Except the " send it back to Elecraft"
> type,
> > :). It would be cheaper just to order the new one, :)
> >
> > 73 de Linas LY2H
> > __
> > Elecraft mailing list
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> > Help: http://mailman.qth.net/mmfaq.htm
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> >
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Re: [Elecraft] T-1 tuner stopped tuning

2017-02-26 Thread Jim Miller 
Are you sure the push button switches are working?

Jim ab3cv

On Feb 26, 2017, at 2:31 PM, Don Wilhelm  wrote:

Linas,

It sounds like a microprocessor problem, but I can't be sure.
Do you know of any locals who also has a T1 and would be willing to try 
swapping the microprocessor?

It may be heplful to contact Elecraft support even though you may not want to 
send it in for repair.

73,
Don W3FPR

> On 2/26/2017 2:09 PM, Irma Linas wrote:
> Hello,
> My Elecrat T-1 mini-autotuner stopped working after some 10 years of
> flawless service...
> It started behaving erratically , it either does not react to the RF input
> , or if it does then never finds the tune ending up with the red LED on.
> It is not related with the antenna type,  it is all the same even with the
> perfectly tuned R-8 on. The self LC test procedure as described in the
> manual , though went ok. Disconnecting and re-connecting the battery doesn'
> help. I also tried to eject and reinstal the microprocessor chip to no
> avail. Visual inspection of the boards brought nothing suspicious and
> resoldering the BNC contacts hasn't made any difference.
> 
> Any wise advise is welcome ! ( Except the " send it back to Elecraft" type,
> :). It would be cheaper just to order the new one, :)
> 
> 73 de Linas LY2H
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to donw...@embarqmail.com
> 
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Re: [Elecraft] T-1 tuner stopped tuning

2017-02-26 Thread Don Wilhelm 

Linas,

It sounds like a microprocessor problem, but I can't be sure.
Do you know of any locals who also has a T1 and would be willing to try 
swapping the microprocessor?


It may be heplful to contact Elecraft support even though you may not 
want to send it in for repair.


73,
Don W3FPR

On 2/26/2017 2:09 PM, Irma Linas wrote:

Hello,
My Elecrat T-1 mini-autotuner stopped working after some 10 years of
flawless service...
It started behaving erratically , it either does not react to the RF input
, or if it does then never finds the tune ending up with the red LED on.
It is not related with the antenna type,  it is all the same even with the
perfectly tuned R-8 on. The self LC test procedure as described in the
manual , though went ok. Disconnecting and re-connecting the battery doesn'
help. I also tried to eject and reinstal the microprocessor chip to no
avail. Visual inspection of the boards brought nothing suspicious and
resoldering the BNC contacts hasn't made any difference.

Any wise advise is welcome ! ( Except the " send it back to Elecraft" type,
:). It would be cheaper just to order the new one, :)

73 de Linas LY2H
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[Elecraft] T-1 tuner stopped tuning

2017-02-26 Thread Irma Linas 
Hello,
My Elecrat T-1 mini-autotuner stopped working after some 10 years of
flawless service...
It started behaving erratically , it either does not react to the RF input
, or if it does then never finds the tune ending up with the red LED on.
It is not related with the antenna type,  it is all the same even with the
perfectly tuned R-8 on. The self LC test procedure as described in the
manual , though went ok. Disconnecting and re-connecting the battery doesn'
help. I also tried to eject and reinstal the microprocessor chip to no
avail. Visual inspection of the boards brought nothing suspicious and
resoldering the BNC contacts hasn't made any difference.

Any wise advise is welcome ! ( Except the " send it back to Elecraft" type,
:). It would be cheaper just to order the new one, :)

73 de Linas LY2H
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