3D Model	Overlay	Plan View
Main PCB
Support PCB

Constructors should refer to the Component Overlays along with,
the Bill of Materials for the current value of all components, and
the General Construction Notes for general PCB assembly guidelines.

1. Assemble the Jack Carrier(J101) sub-assembly (3D Model)
2. Assemble the Switch Carrier(S201) sub-assembly (3D Model)
3. Fit all components to the main board following normal assembly guidelines except the J101 and S201 sub-assemblies
4. Mount the 2 sub-assemblies and offer up to the front panel securing using the supplied nuts
5. Check that the switch action is properly aligned and then solder the sub-assemblies into position
6. Solder wires to the 9 points on the Support Board, using the associated anchor points to hold the wires secure - see Wiring Guide
7. Fit the remaining components excluding the 3x jacks. When fitting R1, fold its right-hand leg under and solder to the right-hand pad of C2
8. Fit a wire link from the 0V pad of J3 to the left-hand pad of R1 as shown in the overlay
9. Loosely mount the 3x jacks on to the front panel
10. Check that the slanted corner of each jack is furthest from the nearest edge of the panel and that the jack bush is properly located in the panel, and then finger- tighten the nut
11. Offer up the Support Board and solder in to place
12. Adjust the lengths of the 3 wires for J1 so that they are all the same and then strip approximately 3mm off each wire and attach the crimps
13. Repeat for J2 and J3
14. Fit the crimped wires in to the 3x MTA housings and connect to their respective headers on the main board as per the updated Wiring Guide

Balanced Output Screen Connection

The balanced outputs should have their 'screen' connection properly terminated. The following options are suggested:-

1. Set the jumper JP1 to the right-hand position and connect a wire from J4 to a suitable CHASSIS GROUND point in your system, OR
2. Set the jumper JP1 to the left-hand position.

Addendum

Currently the crossfeed circuit also feeds into the balanced outputs. It may be preferred that this function not be available at the balanced outputs. If so, lift R401 and R411 and wire the free ends to the points on the crossfeed switch as shown on the ASM306 overlay.