Duet won't boot - power issue?

[sbp]

Hi my Duet suddenly won't boot anymore.

I have measured the power supply it delivers 9 V.
I can see a red light in the optical out socket - and sometimes the front led show a constant red.

I felt that the power connection is a little wacky, therefore I disassembled the Duet and when measuring on the power connection on the backside of the PCB I only measure 5.20 V - is that normal?

[alfista]

when measuring on the power connection on the backside of the PCB I only measure 5.20 V - is that normal?

It's normal for a broken power supply, i e it can supply full voltage without load but it bogs down when it has to deliver any current.

Just replace it.

[sbp]

Thank you. I Will try that before changing the conector om the motherboard.

[Viragored]

A bit late to the party, but I'd first change the power supply before getting into anything difficult. My Duet is now on its 3rd or 4th; my external HD that stores the music is on its 3rd; and so on and so on.....

[sbp]

Thank you. A new power supply solved the problem.