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There are several options that can be selected during installation. Jumpers on the
back of the control head, as well as on the printed circuit board inside the amplifier
case, allow the installer to select these various options. These options should be set
before installation of the unit.
Amplifier Cover Removal
Installer Selectable Options
Remove the four protruding Philips
head screws located on the top
of the amplifier unit, and the four
flush Philips head screws on the
sides of the amplifier unit. DO NOT
REMOVE THE FOUR RECESSED
SCREWS ON THE UNDERSIDE OF THE
AMPLIFIER! Lift the top cover
upwards. This cover can be
removed completely from the
amplifier unit.
Auxiliary Input Polarity
The auxiliary input is normally activated by applying a positive voltage to the wire.
If, instead, you would like to activate the auxiliary input by connecting it to ground
(negative), move the “AUX” option jumper from the “Pos. Switching” pins to the
“Neg. Switching” pins in the amplifier unit. (See Amplifier diagram below). The wiring
diagram on page 10 shows two connection examples.
