Agilent 7820 GC Service
43
Turn the thumb screw counter-clockwise and lift the screw to
disengage it from the sheet metal.
Slide the board down and lift it out.
When replacing the signal board, short boards, such as the FID
and uECD, slide into 3 slots. Long boards, such as NPD and
FPD, slide into 4 slots.
Push in on the thumbscrew to engage the threads. Turn the
screw clockwise until it is tight.
The grounding point for the signal board is the
thumbscrew. If this screw is not secured, the
detector signal will be noisy and may cause damage
to the board.
Connect the electrical cables to the board.
Turn ON the GC and reconfigure the detector signal board. See
Replacing a GC module (166) for details.
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