Kakute H7 Buzzzer Not working

ArduCopter Copter 4.2
1

Hi
Has anyone got the buzzer to work on Kakute H7. I have just built copters with the Kakute H7
and Kakute H7 mini and cannot get any output on the buzzer pin on either board (Checked with oscilloscope and pullup resistor)

2

On the mini at least you need to use an active buzzer. Not sure about the regular H7

3

Just tried an active buzzer on the mini but still no output

4

I can’t see anything wrong with the hwdef

5

I was wrong I think the buzzer is working with the active buzzer. It dose sound when arming the quad.
It just dose not play the startup sequence when first connected.
Thanks for your help