430 Power/Electronics Replacement
Replacing the pneumatics board
14 of 26
Jun 2001
Mainframe
Agilent 6890 Gas Chromatograph Service Manual
Replacing the pneumatics board
WARNING Before proceeding, turn off the main power switch and unplug the power cord.
Caution Make sure you are properly grounded with an ESD strap before continuing.
The electronic pneumatic controller printed circuit board is located on the
back of the instrument underneath the inlet and detector pneumatics
modules.
1. Unclip any inlet/detector module connectors from the EPC board.
2. Unclip the ribbon cable from the main board and thread it back up
through the slot towards the EPC board.
3. Unscrew the two Torx T-20 screws on the EPC board bracket and slide
the bracket and board out of the GC.
Figure 430-11 Removing the screws from the EPC board bracket
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