MODIFICATION
The MM122 is a flexible mixer, and should ac-
complish most tasks in its factory-shipped
configuration. The inserts on channels 1 & 2
can be switched pre or post-fader by back panel
buttons, negating the need for any tools or a
penchant for living dangerously.
In the factory-shipped configuration, there is one
pre-fader AUX send (AUX1) and one post-fader
(AUX2). However, some users may prefer two
post-fader AUX sends if they want more effects,
for example.
AUX1 to post-fader mod
First, unplug the mixer from the mains and re-
move any devices connected to it.
Turn it over and lay it face down on a soft slip
proof surface. Remove the small screws in the
sides, which hold the bottom plate in place.
Once all the required screws have been
removed, gently ease the bottom panel off of
the mixer.
Inside you should be able to see eight black
plastic blocks in a rough line across the circuit
board of the mixer, from left to right. Each block
contains a black jumper sitting on a group of
four copper pins. In the factory preset position,
the jumper links the top two pins (the two pins
closest to the jack panel).
This simple mod requires removing the back
of the MM122 and shifting plastic jumper blocks
on all eight channels. It is very simple and re-
quires no soldering or cutting of circuit board
tracks. Also, it is repeatable and can be re-
versed without any damage to the mixer, pro-
viding it is done properly. However, since it
involves opening your MM122 to gain access,
care must be taken, and in some countries it
may affect your warranty. Repeated changing
of the configuration is not recommended.
Check first with the distributor or wait for the
warranty to expire.
Carefully remove the plastic jumper from the
top two pins and place it on the lower two pins.
Repeat for all eight channels.
Replace bottom panel and screws.
All manuals and user guides at all-guides.com
all-guides.com
