grace design m906
owner’s manual
11
Dc PoWeR coRD
The first connection to make is from the power supply unit to the main chassis with the supplied 6 pin
XLR DC power cord.
Important: the DC power cable and the remote cable should be connected BEFORE the
AC power is turned on. This prevents incorrect power sequencing which can potentially cause damage to the
m906’s audio circuits.
Warning: A damaged DC power cord can create a shock hazard as Voltages of 72V DC
can be present. Do not operate the m906 with a damaged DC power cord. Replace a
damaged DC power cord with a replacement from Grace Design (WA047) only.
ac PoWeR coRD
Now connect the supplied AC cord to the power supply and then to an AC outlet with the supplied AC
cable. For safety, it is recommended that the cable be connected to a grounded outlet.
connectinG tHe Remote contRoL Unit to tHe aUDio contRoL Unit
The m906 remote control unit connects to the Audio Control Unit via a supplied, high quality 25’ cable.
Each end of the cable terminates in a male DB15 connector. This cable provides RS-422 serial data,
power and headphone signal to the remote.
Make the connection by securing the remote cable to the remote control unit and then attaching the
other end to the Audio Control Unit. Both ends of the cable are identical so it doesn’t matter which
end you connect to the remote or Audio Control Unit. Note: The HD15 connector on each end of the
remote cable does not use a “VGA” computer monitor pinout (see the cable wiring diagram section of
this manual). If you need a cable longer than 25 feet, an off-the-shelf VGA extension won’t work. Instead,
please call us at 303-443-7454 and we’ll help you out.
tUninG PoWeR on
The power switch is located on the front panel of the Power Supply Unit. Switching the rocker switch
to the I position turns the power on. Switching the rocker switch to the
position sets the m906 in
standby.
attacHinG tHe tiLt aDjUStment LeGS to tHe Remote contRoL Unit
The m906 remote control unit can be placed directly on a flat surface or can be tilted forward with the
pair of supplied legs. If you intend to place the remote on a flat surface, you should first attach the self-
adhesive rubber feet (supplied) to each corner of the bottom of the chassis. This will prevent the unit
from scratching your surface and from the bottom panel of the remote from being scratched. The legs
for the remote are threaded on one end and screw into the threaded holes at the rear corners of the
bottom panel. The remote tilt angle can be adjusted slightly by screwing the legs in or out.
