Elecraft T1 no longer wants to tune

Equipment
1

Hello everyone.

After many years I have a few problems with my Elecraft T1 tuner. It no longer wants to tune. When I press and hold the PWR/TUNE button, only the yellow LED flashes - as an indicator that it is not tuning but only displaying the output power.

I first thought the battery was flat and changed it, but it didn’t change anything.

And sometimes, when I hold down PWR/TUNE, nothing happens at all.

Does anyone have any advice or ideas as to why this could be?

Thank you in advance.

73 Marcel DM3FAM

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2

I’d check the following.

Buttons are functioning (i.e. go to 0ohms when pressed.
Soldering of buttons to PCB.
Cracked tracks around buttons.
Soldering on BNC connectors
BNC continuity.
RF detector wiring (there’s a small toroid I think to measure the incoming RF.

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3

The functionality of the 2 push buttons can be easily checked by switching between TUNE and BYP mode (maybe several times …)

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