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Plexi SE PCB Valve Junior Conversion
Version 2
Build Manual
23 August 2009
26 of 34
8. Putting it All Together
8.1 Install the New Components
Now that everything is out of the chassis that we don’t need, the chassis has
been drilled, and the Plexi SE PCB has been assembled, we can prep the
chassis and install all of the new components.
8.1.1 Hookup the Plexi SE PCB
Place the circuit board into the chassis, align the mounting standoffs to their
respective chassis holes and fasten the board to the chassis.
Control Potentiometers
Cut eleven (11) pieces of wire in lengths of seven (7) inches. Strip the ends of
the wires clean and install them in the locations marked above.
Twist the three VR1 (Volume I) wires together.
Twist the three VR2 (Volume II) wires together.
The color of the wires is not important as long as you can determine where each
wire goes.
Sort the five (5) pots and check their values – 1Meg, 25K, 250K, 1Meg and 1Meg.
Cut the tab off of each of the pots with a pair of
cutters (side cuts). A pair of pliers can also be used
to bend the tab over and break it off.
Remove the nut and one of the washers and install
each pot in its corresponding hole in the front panel.
It helps to write the value and taper on the back of
each pot since the value is hidden when pushed into the chassis.
Refer to the layout diagram for the location of each pot. This picture might help,
too.
