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Subject: SDS9 Power on problems

From: "mark.j.rose2@..." <mark.j.rose2@...>
Date: 2011-10-05

Hi,

Attempting repairs on an SDS9. On power up it shows an 'F' on the display which i assume means fault. Also the bass drum trigger led is permanently lit, which may be related or not. PSU tests ok. Anyone got any clues on where to start looking??