Allen&Heath MIXWIZARD3 20S - Manual (Page 30)

30 WZ 3 20S User Guide
User Options – AB Output Relay Switching
The AB output routes to its TRS connectors through
a relay which is normally switched on. A remote
switch may be wired to solder pads on the connector
circuit card to switch the relay off and isolate the
output. One application is in a broadcast studio
where a booth monitor should be muted when its
local mic is live. In this case the relay would be wired
to a micro-switch on the mic channel fader. For
external switching, the relay could be wired to pins
on the REMOTE (user) port on the rear panel.
This option requires internal access to the rear
connector pod. Remove the two M3x6 Torx screws
from each side of the connector panel. Remove the
six M3x6 Torx screws from the rear of the connector
panel. Carefully tilt the connector panel away from
the console so that it is flat on the work surface.
Locate the GND, A and B solder pads on the solder
side of the connector circuit card. Pads A and B are
linked together with a small track. It is normal that
outputs A and B are switched simultaneously. To
switch the relays so that they isolate the output, wire
a switch from pad A to one of the GND pads. This
affects both the A and B outputs.
If you require separate switching of output relay A
and B then cut the interconnecting track and wire two
switches, one from pad A to ground, the other from
pad B to ground.
When the switch contacts are closed the relay
contacts will open, isolating the audio output from its
TRS jack connection.
REMOVE 6x M3 TORX SCREWS
EXTERNAL DC IN
ONLY USE RECOMMENDED ALLEN&HEATH POWER SUPPLY. REFER TO USER GUIDE FOR DETAILS. WARNING: THIS APPARATUS MUST BE EARTHED
DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK
AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR.
RISK OF ELECTRIC SHOCK CAUTION
DO NOT OPEN
ATTENTION: REMPLACER LE FUSIBLE AVEC UN DES MEMES CARACTERISTIQUES. CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE FUSE WITH SAME TYPE AND RATING.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
100 - 240V~ 47-63Hz 45W MAX AC MAINS IN ~ FUSE T630mA L 250V 20mm ON I 0 OFF
Made in the UK by ALLEN & HEATH Limited Serial No.
BACKUP SUPPLY
9
A 9 10
G4
B
AUX 6
R
R L
SENDS
G2 G3 G1
AUX
REVERSE GRP/AUX
INSERT
INSERT 3
A3 OUT
4
OUT
A4
LISTEN WEDGE
MATRIX OUT
RETURN
R
L
MONITOR OUT
OUT
L
M
R
2-TRACK
L
SEND
A5
INSERT R
OUT
A6
OUT
INSERT L 13-14
A1
INSERT 2
OUT
A2
OUT
INSERT 1
ST4
ST3
L/M
R
R
L/M
MIC
LINE IN
OUT DIRECT
10
INSERT
L/M
ST2
R
R
ST1
11-12
L/M
OUT DIRECT
MIC
LINE IN
9
10 INSERT
1 2 3 4 5 6 7 8
MIC
LINE IN
OUT DIRECT
INSERT
MIC
LINE IN
OUT DIRECT
8
INSERT 8
OUT DIRECT
MIC
LINE IN
7 6
7 INSERT
OUT DIRECT
MIC
LINE IN
5
6 INSERT 5
LINE IN
OUT DIRECT
MIC
4
INSERT 4
LINE IN
DIRECT
INSERT
OUT DIRECT
LINE IN
MIC
3
OUT
MIC
2
INSERT 3
DIRECT OUT
LINE IN
MIC
1
2 INSERT 1
- IN +IN
3
INPUT 2 1
RING -IN RING TIP +IN TIP LINE
MIC TIP RING SEND
RETURN
XLR OUT
- OUT 3 2 1 INSERT +OUT
SYS-LINK OUT ( option ) SYS-LINK IN ( option )
MixWizard WZ 3 14:4:2
AUX 5 AUX 4 AUX 3 AUX 2 AUX 1
ALLEN&HEATH
REMOVE 2x M3 TORX SCREWS PER SIDE
A-B
LEV TIP= +
A OUT
A-B
-2dBu IMPEDANCE BALANCED
TIP= +
A OUT
A
B
TRACK LINK GND
RELAY MUTE OPTION
SWITCH TO GND TO MUTE
A+B RLY OPTION
B
A
GND
Track link