Product manual

I N S TA L L A TI O N I N S TR U C TI O N S
Basic Calibration
The console has trim pot level adjustment for several inputs and outputs.
WARNING
The console has been calibrated at the factory to normal -10dBu and +4dBu levels and should not require field calibra-
tion. Usually, it is better to adjust the level out of the source device than to adjust the console trim levels. Field calibra-
tion should only be done with proper test equipment and by a qualified audio technician.
VU METER ADJUSTMENT
The VU meters are factory set for +4dBu at 0VU. These levels should not be changed from factory settings unless directed by factory service technicians.
MIC GAIN ADJUSTMENT
These trim pots are set at the factory for typical microphone gain levels. These trim pots can be adjusted if different mic gains are required. To adjust, the
simplest method is to speak into the mic and adjust the trim pot with a small straight edge screwdriver until the desired gain is reached.
UNBALANCED SOURCE CHANNEL GAIN ADJUSTMENT
No gain adjust is required for unbalanced -10dBu source devices
BALANCED SOURCE CHANNEL GAIN ADJUSTMENT
These channels are set at the factory for +4dBu levels. If the levels must be adjusted, trim pots are available on the bottom of the motherboard. This
requires the bottom panel of the console to be removed. Care must be taken when adjusting the trimpots to not short any electronics. Refer to the
motherboard diagram in Section Six, Service and Maintenance.
PHONE CHANNEL FIFTEEN LEVEL ADJUST
The phone in and out audio connectors are balanced +4dBu outputs that may be adjusted on the rear panel by the trimpots located beside each XLR connec-
tor.
PROGRAM & AUDITION OUTPUT LEVEL ADJUST
The Program balanced output has a trim pot level adjust on the rear panel beside the XLR.
The Audition output is unbalanced -10dBu consumer level and does not require trimming.
4.21
MIC
trim pots
PROGRAM
trim pots
PHONE
trim pots
Back panel Diagram for ARC-15BP console
Logic
RS232
DC Power
Cue
Ch 14
In
Phone Logic Pgm Left Pgm Rght Phone Ch 15 Phone
Out
Out Out In
PC
USB
Mic Ch 4
In
Mic Ch 5
In
Ch 13 Ch 12 Ch 11 Ch 10 Ch 9 Ch 8
48V
pwr
Ch 14
Out
Pgm
Out
Aud
AMM
PMM
Out
Mon
In
Air
L
R
L
R
L
R
L
R
L
R
ARC-15BP
Headphone
Ground
Ch 7 Ch 6 Ch 5 Ch 4 Ch3 Ch 2 Mic Ch 1
In
Mic Ch 2
In
Arrakis
Systems
Mic Ch 3
In
In