Error Message

[Arnak]

Hi Folks,

Can anyone help with an error message on my Tyros 4 please?

The message is The pedal and vocal harmony functions are not effective.

I have checked the repair manual and this relates to test 10, the fix is to replace the peripheral SSP1.

All the relevant pedals have been checked and are working fine.

The message comes up even when they are unplugged as well.

So I think the fault must be inside the keyboard but the manual does not give any idea what to check.

Thanks

Martin