Pressure Systems, Inc. Model 9116 User’s Manual
Page 108 www.PressureSystems.com
5.1.3.3 Remove and Replace PC-323 (Daughter board) on PC-322 (Main PCB)
(1) Remove the two (2) Phillips-head screws that hold the PC-323 onto the PC-322 board.
(Figure 5.3a)
(2) Gently rock the PC-323 board back and forth to loosen it and then lift straight up to
remove it. Place the old PC-323 in an electrostatically-protected bag for possible repair
at the PSI factory.
(3) Remove the new PC-323 board from its electrostatically-protected container. Ensure the
nylon spacer is in place on top of the mounting bar and over the threaded hole. (See
above photograph, Figure 5.3b). Align the two (2) 40-pin connectors and press the
board into place.
Remove Philli
s-head screws
(screw already removed)
Figure 5.3a
Removing PC-323 Daughter Board
Nylon spacer
Figure 5.3b
PC-323 Daughter Board Removed froom PC-322
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