User manual

2-PIN CONNECTOR W/HEADER, .10"
1 101179 PS2: PCB Plug
JACK,DC POWER,MALE,2.1mm,SOLDER EYELET TERMINALS,PC MOUNT
2 690540 R15, R16: 47 OHM,1/4 WATT,5%
1 104978 CONNECTOR DSUB, RIGHT ANGLE, DB-9F
1 697688 LED1:Uni-Color Yellow
1 2.1MM COAX PLUG Y-ADAPTER, FEM - 2 MALE
Only use one 5vdc power supply
1 65585 Socket IC 18 Pin
1 38623 Socket IC 20 Pin
Step 1 - PCB Mounting
Install 4 ea 4-40 x 1" bolts/nuts to support PCB off the table.
Step 2 - U1/U2) chip sockets
Add 2 ea (U1/U2) chip sockets.
Place socket on PCB and solder into place.
Try not to hold soldering iron on board for more than 3 seconds.
Step 3 - (X1) 20MHz crystal
Add 1 ea (X1) 20MHz crystal and solder to board.