Allen&Heath GL2 - Manual (Page 4)

4 GL2 SYS-LINK EXPANDER OPTION SHEET AP0204 ALLEN & HEATH
5b. SOLDER ON THE SYS-LINK WIRE HARNESS GL2-S DIAGRAM 3
Lay the harness above the faders positioning each branch in place against the Stereo Return and
L/R circuit assemblies.
Solder the prepared ends of the harness wires to their corresponding square solder pads on the Stereo
Return assemblies. This may be done with the assemblies in place by carefully using a fine-tipped
soldering iron. Make sure the wiring pads are tinned with fresh solder first for good joints. The
suggested order is :
Stereo Return Assembly 1 Pink wire, then Blue, Red, Yellow
Stereo Return Assembly 2 Pink, Blue, Red, Yellow
Solder the harness wires to the wiring pads on the L/R Assembly as illustrated. The suggested order
is :
L/R Assembly Brown *, Grey *, Pink,Yellow, Blue, Red
* Note that the Brown and Grey wires are most easily soldered by applying the iron from the
component side of the L/R assembly which is a through hole plated PCB.
6. FIT THE IDC RIBBON HARNESS DIAGRAM 1
Plug on the IDC ribbon harness supplied with the kit. Make sure that all the pins are correctly aligned
and seated on the circuit assemblies including the SYS-LINK assembly.
Reposition the console power cable as shown in Diagram 1 to avoid it becoming trapped between
the IDC connectors and base.
7. CHECK YOUR WORK AND REFIT THE BASE
Clean out any dirt or debris. Check for correct connector seating, earth busbar and harness wire
connections, and good solder joints. Check that the SYS-LINK assembly and its components are
correctly secured and positioned on the stereo assembly.
Remove the stick-on covers from the D-connector cutouts in the base.
Refit the base making sure that the internal console power cable is correctly positioned.
Fit the 4x screwlocks to the D-connectors to secure them to the base panel.
8. TEST THE CONSOLE
Apply power and test the console for correct operation.
SYS-LINK may be tested by probing the D-connectors or connecting to another GL2 or GL2-S with
the option fitted. A standard 25way male D-type connector cable is required to interconnect
consoles.
Assembly diagrams 1,2 and 3, circuit diagram and layout, and harness drawing follow for reference.