Figure 5-49. Removing The Pc Cover; Figure 5-50. Removing The Card Cage Mounting Screws - Thermo Scientific Omni FTIR Multi Gas CEMS Instruction Manual

Preventive Maintenance and Servicing
Replacing the National Instruments Boards
5-60 Omni FTIR Multi Gas CEMS Instruction Manual
touching any internal components. When the PC is unplugged, the chassis
is not at earth ground.
1. Shut the PC down through Windows, and then shut off the
PC/Console circuit breaker on the breaker box.
2. Remove the PC from the FTIR rack by following the procedure
"Replacing the PC", but do not remove the slide rails from the sides of
the PC.
3. Using the Phillips screwdriver, remove the 5 screws holding the
computer cover on and remove the cover
the screws are in front on top and 1 is on each side.
Figure 5–49. Removing the PC Cover
4. Using the Phillips screwdriver, remove the 5 screws holding the card
cage in place (Figure
of the PC and 1 is inside.
Figure 5–50. Removing the Card Cage Mounting Screws
▲
(Figure
5–50). Note that 4 of the screws are on the back
5–49). Note that 3 of
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