Pressure Systems, Inc.
9016 Upgrade Instructions
www.PressureSystems.com
9
Figure 9
Finding Pin 1 on a PC
Board
Figure 9a
Connectors on 322/323 PCB
Pin 1, denoted
by square
solder pad (on
bottom of PC
board)
Orient red stripe as shown
P1 connection on
PC-322 board
Figure 10
Top Plate to P1 Connection on PC-322
wire wrap, starting near the P6 connector. The freed white nylon spiral wire wrap may be
re-used on other wires or tubes, or may simply be cut off and discarded. If you choose to cut
off the spiral wire wrap, be careful not to nick or cut any other wires or tubes.
(3)
Attach the wiring harnesses to their respective connectors, P1, P3, and P6. Note that the
connector from P3
connects to your new PC-327 board. It will be connected to the PC-327
board after the PC-322/323 boards have been attached to the module top plate. Remember,
the red line on your ribbon cable is to be connected to Pin 1 of the PCB.
(4)
Plug the connector from the top plate into P1 of the PC-322 board. Be careful to connect the
correct pins together (Pin1 to Pin1) and make sure the pins are aligned. If not, the PCB
could be damaged. Pin 1 is denoted by the square pad on the solder side of the board. (See
Figures 9, 9a,
and
10
.)
Scanner top plate
connection
