Oxmoor MDA-16 - Manual (Page 4)

Page 2
MDA-16 CALLOUTS
PIN 2 POSITIVE
ON ALL AUDIO
CONNECTIONS
FUSE POWER
CHASSIS
SERIAL NUMBER
D C B A
OUTPUT INPUT
CAUTION REPLACE ONLY
WITH SAME TYPE FUSE
1/8 A SB @ 115V
1/16 A SB @ 230 V
F E
OXMOOR MDA-16 DISTRIBUTION AMPLIFIER MASTER CHANNEL A CHANNEL B CHANNEL C CHANNEL D CHANNEL E CHANNEL F
POWER
1 3
Figure 1.0: MDA-16 Front Panel View
2
Figure 1.1: MDA-16 Rear Panel View
7 6 5 4
1. POWER STATUS LED – Indicator for AC Power On.
2. INPUT TRIM – Trim pot, accessed through the front panel
with a small flat-blade screwdriver, adjusts the input stage
gain,
±
15 dB, to compensate for varying input signal levels.
3. OUTPUT TRIM – – – – – Trim pots, accessed through the front
panel with a small flat-blade screwdriver. These controls
provide
±
15 dB of gain adjustment for matching different
operating levels or balancing levels across channels.
4. PROGRAM OUTPUTS – Audio outputs, XLR-M–type
connectors, Pin 2 positive, electronically balanced, accept
balanced or unbalanced signals. Recommended load
impedance is 600 ohms or greater. Maximum output level
is +26 dBu.
5. PROGRAM INPUT – Audio input, XLR-F–type connector,
electronically balanced, accepts balanced or unbalanced
signals from line-level devices. Normal input level is +4 dBu
with a maximum input level of +24 dBu.
6. FUSE HOLDER – Replace only with approved type of
fuse in a rating appropriate to the mains voltage, as
indicated on back panel. (See SPECIFICATIONS.)
7. POWER CONNECTOR – Standard IEC 3-pin connector
for AC power cord. Use only with grounded (3-wire)
outlets. Cord sets are available for all world connection
standards.
8. CHASSIS GROUND POST – A screw with a star washer
enables the installer to secure a ground wire to the
chassis.
Figure 1.2: MDA-16 Block Diagram
8
3
3
2 1
3
2 1
OUTPUT A
MASTER
OUTPUT B
OUTPUT C
OUTPUT D
OUTPUT E
OUTPUT F
2 1
2 1
2 1
2 1
2 1
3
3
3
3
INPUT TRIM
BALANCED/UNBALANCED OUTPUT JUMPER
OUTPUT TRIM