Mackie Onyx 800R

[dmeek]

Need schematic. Power supply is in "tick" mode. Not sure if it's the supply unit itself or an
overcurrent on the main board. Power supply is PCB #0007588-00 "Onyx Universal Supply".

Thanks
Doug

[doctor]

Need schematic. Power supply is in "tick" mode. Not sure if it's the supply unit itself or an
overcurrent on the main board. Power supply is PCB #0007588-00 "Onyx Universal Supply".

Thanks
Doug

Here is the 800R main board schematics.

[dmeek]

Thank you for the schematic doctor. It helped me trace the problem to the
power supply. There were 2 47uF/25V capacitors with bad ESR. Replaced
them and everything looks good

Doug