The Don Classics NV73EQ, Assembly Manual

Page: 17 / 20


Before placing the front panel it's worth checking that there is no short on the power rails to ground. So confirm there's no
continuity between the 24V and 0V pins marked on the top of the PCB and also the edge connectors voltage rails and
ground. Pins 1,5 & 13 are ground. Pins 12,14,15 are power rails.
(Pins 17 & 18 on 51X are also power rails)
(Power rails shouldn't short to each other or to ground.)
(a small beep when first testing is normal as the caps charge up.)

Insert front panel carefully making sure the pot and 48V switch doesn't fall back into the unit.
Secure everything with nuts.
For the phantom switch you can reach in with a long nosed pliers if needs be to
help when tightening.
Same with the tab on the small pot. If not, long tweezers could also prevent
turning of the body when tightening.
Make use of the blind holes in the front panel for the tabs on the potentiometers.
© the DON classics 2015 page 17 of 20