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Servicing
Replacing Instrument Assemblies
To replace the A3 High Voltage Power Supply Assembly
WA RNING
To prevent shock, do not cut or damage the high voltage cables when
removing the cable ties in the following step.
1. Remove the instrument cover as described in “To remove the instrument
cover” on page 5-31.
2. Cut and remove the three cable ties that secure the high voltage connector
to the side panel.
3. Unplug the high voltage connector as described in the following warning
message:
WA RNING
To prevent shock, carefully unplug the laser’s high-voltage
connector as described in the next step. This cable remains
energized long after the instrument has been disconnected
from the power source. Immediately after unplugging the
connector, ground the two contacts of the male connector
simultaneously on the side of the instrument to discharge the
plasma tube.
4. Unplug the high-voltage connector shown in the following figure.
Immediately after unplugging the connector, ground the two contacts of the
male connector simultaneously on the side of the instrument to discharge
the plasma tube.
5-37