Q  Ref#   Description

4  R1-R4  100 Ohm LED current limit resistors (set to match LED scoring lights)
2  R5-R6  180 Ohm LED current limit resistors
1  RP1    390 Ohm resistor array (or individual resistors)
1  RP2    510 Ohm resistor array (or individual resistors)
2  C1-C2  10uF 25V electrolytic capacitors
1  C3     0.1uF Ceramic capacitor
2  D1-D2  Red LEDs for weapon indicator
7  D3-D9  TVS diode, 5.3V (Optional, but recommended)
1  Y1     4MHz ceramic resonator
1  J1     Power jack
1  S1     Power switch, SPST
1  IC1    PIC16C57 microcontroller (Microchip Technologies)
1  IC2    LM7805 5 volt regulator
1  IC3    TD62003AP or ULN2003 Darlington driver array
1  BZ1    Buzzer
4  -      LED scoring lights
