Equipment Description; Chassis; Motherboard; Option Board - Arrakis Systems X-mixer-14-14 Technical Manual

E q u i p m e n t D e s c r i p t i o n
SIMPLICITY
The X-mixer console is designed for
ease of installation, ease of service, and
ease of use. The basic console has 3
metal panels, 4-5 PC boards, and an
external modular power supply. Most
ICs are socketed for ease of board level
repair. The bare minimum of surface
mount parts are used. All parts are pro-
fessional quality for high performance
and long life.

CHASSIS.

The mainframe consists of a welded
aluminum bottom chassis with an alu-
minum operator panel and VU meter
housing. The operator panel is hinged
t o p r o v i d e a c c e s s t o t h e m a i n
motherboard for servicing. The VU
meter panel is hinged for access to all
connectors and adjustments for instal-
lation.
To ensure high RF shielding, all
audio wiring shields are grounded
directly to the chassis through each
connector. A ground screw at the left
rear of the chassis provides a connec-
tion point to tie the chassis to the stu-
dio technical ground reference.

MOTHERBOARD

All analog and digital audio process-
i n g i s a c c o m p l i s h e d o n a s i n g l e
motherboard. A physical layout of the
board and block diagram are provided
on a following pages.

OPTION BOARD

The standard X-MIX-14-14 console
comes with 2 mic sources, 10 stereo
analog line sources, and two AES3 digi-
tal audio sources. The X-MIX-14-22
adds an additional board to the console
to add 8 AES3 digital inputs and 2 mic
preamps.

POWER SUPPLY

The supply is external to the console
mainframe to reduce hum and noise. It
is what is commonly called a "line
lump" configuration. It is a compact
module with a 6 foot AC power cable
and a 6 foot DC cable that connects to
t h e r i g h t r e a r o f t h e c o n s o l e
motherboard.
The power supply has DC outputs of:
(+) 5 volts, 4 amps
(+) 12 volts, 2 amps
(-) 12 volts. 0.5 amps
Physical size: 3" x 1 3/4" x 6"
Input: 100-240VAC, 50-60Hz, 1.6A

VU METER HOUSING

The VU meter housing hinges back to
provide access to the motherboard con-
nectors and trim pots. The housing
itself contains 5 VU meters and a timer.
The VU meters are analog and are driv-
en from the motherboard with associat-
ed trimpots for level adjust.
The timer is a custom up timer with
minutes and seconds. The timer chassis
and board are attached to the VU meter
housing with two screws from behind
the face. A single cable attaches the
timer to the console motherboard
through a multipin connector.

FRONT PANEL

T h e f r o n t p a n e l h a s t h r e e
motherboards. The first 2 boards have
the switches for the channel assign -
ments. The second board has the
switches for the control room monitor
and remote selector switches. Associat-
ed electronics on the boards drives the
2 2
T H E X - M I X E R D I G I T A L
switch LEDs. The monitor, headphone,
and cue pots have cables and are
plugged into the motherboard. Use of
plugs (not direct soldered) simplifies ser-
vicing of the console.
X-mixer Layout
CONSOLE SIDE VIEW
shown with control surface and VU meter
housing set to its service position
Power
Cable access
VU housing
connector
holes
hinged open
IO con-
nectors
RS232
connec-
tor to
PC
Main
Mother-
board
On-off
switches
Slide
faders
10 ch control board
Operator
panel
COUNTERTOP VIEW
hinged
open
POWER SUPPLY
C O N S O L E
Timer
module
TIMER IO con-
nectors
Option
Board
Monitor,
Control
Head-
room
phone,
monitor
Cue pots
board