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flat side on the part. Line these flat sides up and the diodes will be
installed correctly. If installed backwards they will never light. Install D6,
the red LED, by correctly orienting the flat side on the part with the flat
side shown on the PC board silkscreen and Parts Layout Diagram. Leave
the leads between the bottom of the part and the PC board at least 1/2
inch long. Solder both leads. When you clip the leads off the back of the
board leave a little extra on this part and on D5. This will allow you to line
the LEDs up with the hole in the front panel and make sure they push
through enough to be seen. We'll get to how to do that when we attach
the two boards together and put them in the case. In the same way that
you installed D6 above, install D5, placing the flat side correctly and
leaving excess lead length on the back. You can clip the leads off later if
you wish.
60. Install S2, one of the horizontal pushbutton switches. Be sure it's
flush before soldering.
61. In the same way, install S3, S4, S5, S6, and S7, making sure the
parts are sitting correctly on the board and soldering all 4 leads of each
switch. These are the function buttons and you'll be pressing them a lot
as you use your kit.
62. Install MC1, the small microphone cartridge. Because the case is
connected to the ground lead on the part and that lead is not attached to
ground in this kit you'll want to leave a bit of space between the body of
the microphone and the PC board. This is one of the times we won't tell
you to make sure that the part is flat to the board before soldering! Line
the part up in the circle on the silkscreen, leave a little space underneath
the part (1/16 of an inch is fine) and solder it in place.
63. Install R13, the 10k ohm vertical mount pot. You might need some
extra time on the ground connections on this part but it's worth it to make
it solid now. You'll be adjusting this part and you'll want a good
mechanical connection from the start.
64. Now we'll install the three 8 pin dual row headers to the front panel.
These will be used to connect the two boards together. Let's start with J6.
Place the header through the PC board so that the long pins come out the
back of the board on the solder side. Line it up so that it's straight and
solder one of the end pins, then check straightness again before soldering
the rest.
65. In the same way, solder the 8 pin headers in the J11 and J8 positions.
Ok! All the parts are in but we're not quite through. We still have to attach the
boards together, test your new BS2 and case it up. Before applying power it
would be a good idea for one last glance over the entire PC board. Check for:
•
Missed solder joints.
BS2 • 18
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