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47. Install R19, 10k ohms (brown-black-orange).
48. Install R15, 330 ohms (orange-orange-brown).
49. Install R20, 21, and 22, all 10k ohms (brown-black-orange).
50. Now we'll move to the other end of the PC board. Install C6, 10uF
electrolytic capacitor. Watch orientation!
51. Install R6, the 1k ohm vertical trimmer pot (marked 102). It only fits into
the board one way. Solidly solder all three pins.
52. Install J12, the 3.5mm monaural style switch jack. Be sure the part is
flat to the board before soldering, otherwise you'll have a hard time fitting
the kit into the case and having things line up where they should. This part
is your external speaker jack.
53. Install the dual RCA jack, J2. This is your line output jack.
54. Install J5, the other 3.5mm monaural style switch jack. This is your
microphone jack.
55. Install J9, the single RCA jack that will be used for line level audio
input. It's important to solder the heavier ground connections on this type
of jack so use enough heat and time to make a solid connection here. It'll
pay off when you're using the kit!
56. Install J1, the 2.1mm center positive power jack.
Time to move on to the smaller front panel board. Just a few parts there and
we'll solder the boards together, then you'll be just about ready to fire up your
Bullshooter. Pretty exciting, huh? Well, let's get moving then!
57. We'll start at the middle of the board with the smallest part. Install R18,
2.2k ohms (red-red-red). We started with this one because it's small and
sits flat on the board and would be difficult to put in later when you'd have
to squish it in between the larger parts.
58. Install DS1, the seven segment display (LTS367P). You'll see that
there is a decimal point in one of the corners of the part. Orient the display
so that the decimal point will be at the lower right when you're looking at the
front of the unit. You should be able to rest the board on this part to keep it
flat when soldering but you'll also want to check it to be sure it's square.
Solder all 6 leads.
59. Now we'll install the LEDs. D6 is the red LED and D5 is the green LED.
Being diodes, these components are polarized and must be oriented
correctly. Examine one of the LED's and notice how one lead is longer
than the other. The longer of the two leads is the anode, or (+) connection.
Most diodes also have a flat molded in the component body. This
corresponds to the cathode or (-) side of the part. You'll see that the PC
board silkscreen for these parts shows a flat side that corresponds to the
BS2 • 17
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