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Proportional Solenoid Valve (PSV) Board
The Proportional Solenoid Valve board (AMETEK Part No. 305705901) is
mounted on the top corner of the PCB board (Figure 4-7). To remove the PSV
board, loosen the knurled screw that secures the board in place and carefully
lift the board off by disengaging the series of pins securing it to the PCB board.
Replace the board by carefully engaging the series of pin connectors on the
PSV board to the PCB board to remount (Figure 4-8).
Analog Interface Board
The Analog Interface board (AMETEK Part No. 591210901) is located on top
of the MCU board (AMETEK Part No. 30511091S) at the front of the Electronics
Module (Figures 4-7 and 4-9).
Removing the Analog Interface Board
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Replacing the Analog Interface Board
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PN 305804902, Rev A
Remove the three (3) knurled screws that secure the board in place. One of
the screws secures the PSV board in place. Remove as described above.
Unplug the connectors attached to the Analog Interface board (Figures
4-7 and 4-9).
Carefully, lift the board until it slides free of the connector.
Position the new Analog Interface board on the connector and press
firmly to insert.
Replace the screws removed earlier, replacing the PSV board as well. Do
not overtighten.
Plug in the Analog Interface board connectors and the PSV board connec-
tor.
Maintenance and Troubleshooting | 4-15
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