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; ProSMS Parts List
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 U1 - 74HCT365 (SOP-16)
 U2 - 74HCT2G00 (TSSOP-8)
 U3 - 74HCT2G02 (TSSOP-8)

 SW1 - DIP Switch

 C1 - 10uF, 25V Tantalum Capacitor (0805)
 C2,C3,C4 - 0.1uF, 50V Ceramic Capacitor (0603)
 C5 - 4.7uF, 25V Ceramic Capacitor (0805)

 R1,R2,R3,R4 - 1.2 KOhm Resistor (0402)
 R5 - 100 Ohm Resistor (0402)
 R6,R7 - 0 Ohm Resistor (0402)
 R8 - 10 KOhm Resistor (0402)

 RA1 - 10 KOhm x 6 Resistor Array (SIP-7)


 Both DB9 connectors may be soldered directly to the edges of the PCB if you
 have the "straight through" versions of these parts. Use a female connector
 for the Atari 7800 edge and male for the Sega Master System / Genesis edge.

 Install SW1 with the "ON" position towards the Atari 7800 edge.

 R6 and R7 may be excluded and their pads shorted (equivalent to zero ohms).
 Feeling dangerous (or frugal)? R1 - R8's pads can be shorted and RA1 nopop'd.