DC Power Supply Connection
The MCB-100 WXD is designed for 12V DC operation
in vehicles with
negative (-) or positive (+) ground
electrical systems.
NOTE:
Check your vehicle's ground requirements
before you begin the radio installation.
Trace the battery cable (attached to the vehicle's frame)
to the battery terminal post. If the battery terminal post
is
marked with a minus (-) sign, it is a negative ground
system.
If the battery terminal post is
marked with a
plus (+) sign, it is a positive ground system.
Negative Ground System
Positive Ground System
NEGATIVE GROUND WIRE
POSITIVE WIRE (FASTEN TO METAL
(FASTEN TO METAL BODY
BODY OF VEHICLE)
OF VEHICLE)
EXAMPLE OF NEG. GROUND 12V DC
EXAMPLE OF POS. GROUND 12V DC
BATTERY CONNECTION - MOST
BATTERY CONNECTION - FEW
COMMERCIAL VEHICLES ARE THIS TYPE.
COMMERCIAL VEHICLES ARE THIS TYPE.
Your MCB-100 WXD should be connected using the
following steps:
Place the on/off-volume knob in the off position
by
turning it counter-clockwise to detent.
Unplug your
DC power cord.
Negative Ground System Connection
1. Connect the
black
GROUND wire to a metal part
of your vehicle's frame*.
NOTE:
Be sure the metal part is not insulated from the
vehicle's frame by a plastic part.
2. Connect the
red
(to switched accessory) wire to a
source of voltage that turns on and off with the
9
12-VOLT
BATTERY
12-VOLT
BATTERY
SOLENOID
SOLENOID
