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6 - Maintenance
6.3.3 Rear Cabinet Components
6.3.3.1 R e a r Cabinet Shell
The rear cabinet shell must be removed to gain access to the following internal
components:AC and DC Power Distribution Boards, Blower, Computer Board,
Detector Board, Fan, Heater, I/O Board, Main Transformer, On/Off Switch, +5V/
± I 5V and 40V Power Supply Boards, RTD. See Figures 34 and 35,
Required Materials
Medium Phillips Screwdriver
To
Remove
the Rear Cabinet Shell
1 T h e rear cabinet shell is held to the instrument frame by 5 phillips screws
with flat washers.
2 T h e r e is one screw on each side of the instrument toward the bottom rear.
Remove these two screws and flat washers.
3 T h e other three screws are on the rear of instrument. One is at the top
center of the rear panel.There is also one screw on the far right of the rear
panel and one on the far left, approximately halfway down. Remove these
three screws and flat washers.
4 L i f t the rear cabinet shell off the frame.
Figure 34 - Rear Cabinet Shell Removal (A)
MA-0103-E3
75
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