TIU REV. L

Hi,

I have a TIU Rev. L that only power-up through the USB port. All the fuses are good no visible damage

to the internal components. The led will flash once and stay off when i apply power to the "Aux power input"

with a 18VAC power supply, the same thing if I use the "Fix voltage in 1".

When it's powered with the USB cable I am able to do back-up, upgrade, etc. It was sent to MTH for repairs some years ago.

Any suggestions on what the problem ?

Thanks.

Jean

2/7/2310:17 AM

Original Post

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