Repair of Mackie Onyx 16 Channel Mixer
Fault - Dead
On first inspection nothing seemed to working so it seemed reasonable to assume the Power supply was at fault,
See the bottom cover removed and the SMPSU fixed to the cover (top of picture).
Power supply removed from the chassis
Revealing the PCB
The PCB removed from the chassis - checked the fuse was not blown
After some testing came to the conclusion that the fault lay in the control chip - see the chip removed.
Re-assembled the PCB back into the chassis
Front view of the re-assembled mixer showing power on, all sorted - left on heat soak all day.
This unit took a small amount of work to bring back from the dead, most repair centres would have just ordered a new PSU at huge cost however after the repair the PSU performed perfectly.
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