Page 3
MT–BB
FRONT
BOTTOM VIEW
MAIN BOARD
REMOVE SCREW
REMOVE SCREW
3. Lay the amplifier upside down and
remove the bottom cover (8 phillips
screws).
4. Locate the Main Board (Figure 2.1)
and remove the two phillips screws
that secure it to the chassis. Remove
the nuts that secure the input phone
jacks to the rear panel. Lift the front
of the Main Board to clear the stand-
offs. Slide the Main Board toward the
front until the phone jacks and level
control shafts clear the rear panel
then carefully lift the rear of the board
to expose its top side (Figure 2.2).
Fig. 2.1 Inside an Amplifier
WARNING: TO PREVENT
ELECTRIC SHOCK, THIS
ACCESSORY SHOULD
ONLY BE INSTALLED BY
QUALIFIED SERVICE
PERSONNEL.
2 Installation
CAUTION:
The
MT–BB should only
be installed by qualified service per-
sonnel in the following manner:
1. Turn down the level controls (full
counterclockwise), turn off the ampli-
fier and unplug it from the AC power
source.
2. Remove the filter/grille from the front
panel (3 phillips screws). Remove
the rear cover plate on the rear panel
(2 phillips screws).
