ALLEN&HEATH
MixWizard Series
WZ14:4:2+
SYS-LINK
EXPANDER OPTION
This option connects a MixWizard WZ14:4:2+ as a channel expander to a second
A&H console already fitted with SYS-LINK with just one or two interconnecting
cables.
Kit Part No: W21442-SL1
Single option to install SYS-LINK to one MixWizard WZ14:4:2+ unit to
allow interconnection to a second console already fitted with SYS-LINK.
Interconnecting cables not supplied.
For information on using SYS-LINK please refer to APPLICATIONS NOTE AP3665
FITTING INSTRUCTIONS
Publication AP3664
Issue 2 July 01
FITTING THE SYS-LINK EXPANDER OPTION
CHECK THE CONTENTS :
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n
nn
Please carefully check the SYS-LINK circuit board assembly is the correct one for the console in which
it is to be installed.
D type connector
fixings already fitted.
4 x AB2189
Ribbon A Ribbon B
INPUT
2
.
0
/
6
1
K
M
C
1m length of Green
32/0.2 wire. Screw
Terminals at each
end.
A
M
L
0
7
B
2
.
0
/
6
1
M
D
M
E
0
7
R
M3x12 Screw
AB0078
OUTPUT
2 x Foam Strips
AK0322
0
0
0
0
0
1
0
U
3
P
L
0
F
2
A
3
P
P
9
3
6
5
2
4
K
L
K
P
P
B
A
A
P
P
A
0
0
1
Y
2
G
P
0
D
L
0
5
E
2
2
E
P
P
L
R
Y
R
0
8
U
7
6
2
3
P
A
L
4
E
G
Y
U
2
2
2
1
L
K
L
B
P
P
P
B
A
A
0
0
0
D
D
L
4
3
2
3
2
1
E
2
P
G
E
2
2
E
P
G
P
G
R
Y
R
Harness C
fig. 1
Contents:
1x SYS-LINK circuit board assembly with interconnecting harness and D type connector fixings already
fitted.
1x SYS-LINK Fitting Instructions (AP3664)
1x SYS-LINK Application notes (AP3665)
TOOLS REQUIRED :
oo
o
oo
12mm NUTDRIVER
SOLDER
FLAT BLADE
CUTTERS
SOLDERING IRON
with small tip
1pt CROSS POINT
MIXWIZARD WZ14:4:2+ SYS-LINK OPTION2
LONG NOSE PLIERS
ALLEN & HEATH
REMOVING THE REAR COVERS
pp
p
pp
Before beginning any service work, remove all power to the unit and disconnect any signal cables where
necessary. The rotating connector module must be set for desk top operation to gain access to the cover. Ensure
adequate lighting and use the correct tools.
Working from the front of the mixer remove screws and nuts (A) fixing the base cover to the front panel.
A
fig. 2
With the unit inverted, remove the 4 remaining screws (B) in the base cover and remove the base, then
remove the 4 connector module cover screws (C) and remove the cover.
C
B
CONNECTOR COVER
BASE
ALLEN & HEATH
fig. 3
MIXWIZARD WZ14:4:2+ SYS-LINK OPTION
3
FITTING THE SYS-LINK CIRCUIT BOARD ASSEMBLY
qq
q
qq
Locate Stereo input 13-14 circuit board assembly and Group 1 circuit board assembly. Referring
to fig.4 fit 2 x foam strips in between Stereo input 13-14 and Group 1 circuit boards. Remove the
IDC harness from the Right PCB all the way to Stereo input 13-14 PCB. Cut the TC buss wire
5mm from the component side of the Stereo input 13-14 circuit board assembly and bend the TC
buss wire vertically.
Slide the SYS-LINK circuit board in between the Stereo input channel and Group 1 circuit board
assemblies. Take care not to damage the ribbon harnesses already connected to the circuit
board.
Buss wire across channels
Slide SYS-LINK circuit
board between Stereo
input 13-14 & Group 1.
IDC harness
GROUP 1
PCB
2x Foam
Strips
STEREO 13-14
PCB
Switches
Potentiometers
Cut each wire 5mm from the component side of
stereo input 13-14 circuit board assembly and
bend wires vertically up.
Ð
Ð
LEFT
RIGHT
STEREO 13-14
GROUP 1
fig. 4
MONO
Buss wire
Ø
Group 1
SYS-LINK
circuit board
Stereo 13-14
SOLDERING THE SYS-LINK HARNESS ASSEMBLY:
rr
r
rr
Referring to fig. 1, fig. 5 & fig.6, form harness C as shown and prepare the solder pads on the
circuit boards with new solder to ease the soldering of the SYS-LINK wires.
Note, the wires are soldered to the trackside of the circuit boards and not the component
side.
It is recommended that the wires in the SYS-LINK harness are soldered to each circuit board in
the following order:
RIGHT PCB then LEFT then GROUP 4 then GROUP 3 then GROUP 2 and then finally GROUP
1 PCB.
MIXWIZARD WZ14:4:2+ SYS-LINK OPTION4
ALLEN & HEATH
P20
P21
Red
P20 P21
P20 P21
Red
Blue
PinkYellow
Blue
1
P
U
O
R
G
2
P
U
O
R
G
3
P
U
O
R
G
P20 P21
Yellow
Pink
SYS-LINK WIRING HARNESS
P1
P10
Yellow
Grey
P11
Pink
P13
Blue
P12
Red
4
P
U
O
R
G
T
F
E
L
T
H
G
I
R
ALLEN & HEATH
fig. 5
MIXWIZARD WZ14:4:2+ SYS-LINK OPTION
5
SOLDERING THE SYS-LINK CIRCUIT BOARD ASSEMBLY:
tt
t
tt
Bend the cut vertical TC buss wire back down and resolder.
Buss wire
SYS-LINK
Foam Strip
Lift the SYS-LINK circuit board assembly and locate the Earth TC buss wire into the slot on the circuit board.
Make sure the SYS-LINK circuit board assembly is located centrally between the Stereo input circuit board
and the Group circuit board assemblies resting on the 2 foam strips.
Check that the TC buss wire is located in the correct slot and carefully solder it.
Solder red and black wires as shown in fig. 6.
circuit board
Solder wires
onto TC buss
Slots
STEREO 13-14
SYS-LINK
GROUP 1
Buss wire
×
Harness C
fig. 6
MIXWIZARD WZ14:4:2+ SYS-LINK OPTION6
ALLEN & HEATH
FITTING THE SYS-LINK CONNECTORS TO THE REAR PANEL
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To fit the two SYS-LINK D type connectors to the rear panel of the connector module it will be necessary to partially
remove the the connector circuit board assembly from the rear panel.
Working from the rear of the console remove screws (A) fixing the XLR and phono connectors to the
panel and using a 12mm Nutdriver or pliers, remove jack nuts (B).
SYS-LINK blanking panel
B
B
A
B
B
A
A
B B
fig. 7
Carefully release the connector circuit board from the rear panel and lean it out just enough to gain access
to the SYS-LINK blanking panel.
Þ
CONNECTOR CIRCUIT
BOARD ASSEMBLY
ALLEN & HEATH
fig. 8
MIXWIZARD WZ14:4:2+ SYS-LINK OPTION
7
Refering to fig. 1 & fig. 9, remove the two screws fixing the blanking panel in place and fit the two
SYS-LINK connectors. Check the connectors are fitted into the correct holes. Fit the 32/0.2
Green wire to the panel using the M3 x 12 screw provided as shown below.
1 Metre Green
32/0.2 wire
B
A
B
B
Ribbon A
INPUT
INPUT OUTPUT
B
Ribbon B
OUTPUT
B B
A
A
fig. 9
Refering to fig. 10, place the 2 SYS-LINK ribbon harnesses so that they locate in the slots in the
base.
INPUT
Ribbon A
OUTPUT
Ribbon B
fig. 10
Carefully refit the connector circuit board assembly ensuring each XLR, Jack and Phono socket
is correctly located. Check all rear panel switches operate correctly.
MIXWIZARD WZ14:4:2+ SYS-LINK OPTION8
ALLEN & HEATH
When all installation work is complete, remove all debris such as solder, component legs and wire clippings from
inside the console and check your work carefully before reassembly.
vv
v
vv
REFIT THE BASE :
C
B
CONNECTOR COVER
BASE
fig. 11
Refit the base and connector cover, taking care not to pinch or damage the flat flexible cables. Turn the
console the correct way up.
TEST THE SYSTEM:
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w
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Test all SYS-LINK inputs and outputs for correct signal level and quality by probing the D-connector pins or by
interconnecting two consoles with SYS-LINK fitted. Test the PFL/AFL system for correct DC buss switching.
Connect the free end of the Green 32/0.2 wire to the second console as close to the power input as possible using
one of its own chassis screws. The SYS-LINK circuit diagram and technical details are included for reference.
1 1
PLUG ON THE INTERCONNECTING CABLES:
SYS-LINK connectors are 25way D-type female. Use 25way D-type male to male connector cables. Connect pin
one to pin one on all connectors. Connect shield (screen) to 0V. Standard cables are available from electronic
suppliers or computer shops. It is advised that the cable is a screened type no more than 2 metres long. Use
professional quality locking connectors.
When connecting to equipment other than the GL Series link all unused audio inputs to 0V earth at the
SYS-LINK input.
The SYS-LINK Applications Note AP3665 is included separately with these fitting instructions. Provide this note
to the user as applicable.
Please refer any queries to your Allen & Heath appointed service agent.
ALLEN & HEATH
MIXWIZARD WZ14:4:2+ SYS-LINK OPTION
9
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