Replacing Components Inside The Electronics Panel; Accessing The Analog And Power Board; Replacing The Als Board - Agilent Technologies 7820A Service Manual

Replacing Components Inside the Electronics Panel

Agilent 7820 GC Service
209

Accessing the analog and power board

To access the analog and power board in the rear of the
electronics carrier, you must first remove:

The ALS controller board

The valve bracket (not shown below)

The logic board

Replacing the ALS board

1 Cool down the oven.
Turn off the GC main power switch and disconnect its power
cord.
Hazardous voltages are present in the
mainframe when the GC power cord is connected.
Avoid a potentially dangerous shock hazard by
disconnecting the power cord before removing
any GC panels.