Assembly
Instructions
Before you start, read through the instructions completely to the end.
Inventory the kit contents to become familiar with the parts and to make sure you have
everything.
The assembly sequence is as follows:
1.
Assemble all of the printed circuit boards
2.
Pre-wire the printed circuit boards
3.
Pre-wire the power transformer
4.
Install PC boards and the power transformer on the bottom panel
5.
Assemble the components on the back panel
6.
Assemble the components on the front panel
7.
Assemble the panels
8.
Wire everything together
There are two sizes of stranded wire provided with the kit, #22 and #20. The larger diameter #20
is used for power and high voltage. The smaller diameter #22 is used for signal and low voltage.
Where a wire is to be connected to a PC board, prepare the end by stripping
⅛
” insulation and tin
the bare wire. For other connections, strip ¼” and tin the end. Where a twisted-pair is called for,
provide about four or five twists per inch. Twisting wires together will shrink their length
slightly so you need to take this into account. With a very few exceptions, which are explicit,
insert the wire into the pad from the bottom, or solder side, of the board. Wires should be
dressed neatly as close to the bottom of the enclosure as possible.
Assemble the Printed Circuit Boards
You will assemble three boards for this project: a RAKK Input board, an Analog Select switch
board and an Active Differential Output adapter. While assembly of all of the boards is straight-
forward, the Active Differential Output is the most complex. Therefore, I recommend that you
leave that kit until you have assembled all of the other boards. The instructions for the Analog
Select switch board are included in the Analog Input manual.
The assembly manuals for the boards include installation instructions that you will not use.
Rather than using those general instructions, you will follow the specific installation
instructions contained in this manual.
Referring to the applicable
on-line manuals
, assemble the
boards now.
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