Elecraft T1 doesn't tune nor read power levels

[IU6ASS]

Couple of weeks ago i got my hands on a used rig, an FT817D plus an Elecraft T1 tuner. The tuner worked fine until yesterday, doing the autotuning at band change and tuning when pressing the "tune" button.

But now when i press the tune button or switch between bands and transmit within the flashing green LED, the tuner stands still, not cycling thru the relays to find the best match, as like it's not connected to an RF source at all.

Thanks to the CAT cable, when i switch bands on the radio, the T1 it still does the same, and still retains the last stored SWR match saved on the various bands, but if i switch to another antenna and try to tune, as mentioned, it does not tune.

I tried tuning in CW, AM, FM, talking over SSB, but to no avail, the tuning does not starts.

I tried switching to a new battery, same effects.

I tried to listen to the slow CW Info, but not much information.

I decided to open the T1 and eventually check for cracked solder joints and aside from fatigue ones on the BNCs that i could solder easily, nothing out of the ordinary came out to my eyes.

Any idea from more expert minds?

[John-2]

Hello.

Open up the tuner and see if the motors are trying to turn.

They may be frozen/sticky.

73.

John.



On 21/05/2017 10:29 AM, IU6ASS wrote:

> Couple of weeks ago i got my hands on a used rig, an FT817D plus an Elecraft
> T1 tuner. The tuner worked fine until yesterday, doing the autotuning at
> band change and tuning when pressing the "tune" button.
>
> But now when i press the tune button or switch between bands and transmit
> within the flashing green LED, the tuner stands still, not cycling thru the
> relays to find the best match, as like it's not connected to an RF source at
> all.
>
> Thanks to the CAT cable, when i switch bands on the radio, the T1 it still
> does the same, and still retains the last stored SWR match saved on the
> various bands, but if i switch to another antenna and try to tune, as
> mentioned, it does not tune.
>
> I tried tuning in CW, AM, FM, talking over SSB, but to no avail, the tuning
> does not starts.
>
> I tried switching to a new battery, same effects.
>
> I tried to listen to the slow CW Info, but not much information.
>
> I decided to open the T1 and eventually check for cracked solder joints and
> aside from fatigue ones on the BNCs that i could solder easily, nothing out
> of the ordinary came out to my eyes.
>
> Any idea from more expert minds?
>
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/Elecraft-T1-doesn-t-tune-nor-read-power-levels-tp7630887.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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[IU6ASS]

@John-2

If for "motors" you intend the relays, they seems to work (I cycled them with the diagnostic built in the T1), but during normal tuning operation, the tuner does seems to not recognize that RF is sent to the T1 at all.

I tired to change the coaxial links between radio, T1 and antennas just for good measure, but there is no change.

[Nr4c]

Motors?

Sent from my iPhone
...nr4c. bill

> On May 21, 2017, at 1:29 PM, IU6ASS <[hidden email]> wrote:
>
> Couple of weeks ago i got my hands on a used rig, an FT817D plus an Elecraft
> T1 tuner. The tuner worked fine until yesterday, doing the autotuning at
> band change and tuning when pressing the "tune" button.
>
> But now when i press the tune button or switch between bands and transmit
> within the flashing green LED, the tuner stands still, not cycling thru the
> relays to find the best match, as like it's not connected to an RF source at
> all.
>
> Thanks to the CAT cable, when i switch bands on the radio, the T1 it still
> does the same, and still retains the last stored SWR match saved on the
> various bands, but if i switch to another antenna and try to tune, as
> mentioned, it does not tune.
>
> I tried tuning in CW, AM, FM, talking over SSB, but to no avail, the tuning
> does not starts.
>
> I tried switching to a new battery, same effects.
>
> I tried to listen to the slow CW Info, but not much information.
>
> I decided to open the T1 and eventually check for cracked solder joints and
> aside from fatigue ones on the BNCs that i could solder easily, nothing out
> of the ordinary came out to my eyes.
>
> Any idea from more expert minds?
>
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/Elecraft-T1-doesn-t-tune-nor-read-power-levels-tp7630887.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

______________________________________________________________
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Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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Please help support this email list: http://www.qsl.net/donate.html
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