TC-Helicon FX150 9v -ive at the jack plugs. Please help.

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Joined
Nov 23, 2022
Messages
6
Location
Sevenoaks
Hi All,
I have been given an TC-Helicon FX150 which I would appreciate help with. There is a voltage of 9v -ive at the jackplug socket. I have been trying to trace the source but it is very difficult to follow the amp pcb board without a schematic. So anyone could let me see one I would be very grateful. I’ve tried all the usual routes but they won’t release the info.
Many thanks for any help.
Steve.
 

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