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Servicing
Measurement Interface Board Replacement
Measurement
Interface Board
Replacement
7-36
Model 48i Trace Level-Enhanced Instruction Manual
5. Using the nut driver, remove the eight standoffs securing the board to
the rear panel.
6. Pop off the motherboard from motherboard support bracket, and
remove the motherboard.
7. To install the motherboard, follow previous steps in reverse.
Use the following procedure to replace the measurement interface board
(Figure
7–17).
Equipment Required:
Measurement interface board
Philips screwdriver, #2
Equipment Damage Some internal components can be damaged by small
amounts of static electricity. A properly ground antistatic wrist strap must
be worn while handling any internal component.
1. Remove the measurement bench and lower the partition panel to gain
access to the measurement interface board connectors and standoffs.
Refer to
"Removing the Measurement Bench and Lowering the
Partition
Panel" on page 7-7.
2. Unplug all connectors from the measurement interface board
7–17). Note the locations of the connectors to facilitate reconnection.
3. Unscrew the two screws at the top of the measurement interface board.
Pop off the measurement interface board from the two mounting studs
at the bottom of the board and remove the board.
4. To install the measurement interface board, follow the previous steps in
reverse.
5. Re-install the measurement bench. Refer to
Measurement Bench and Lowering the Partition
this chapter.
6. Calibrate the preamp board, pressure transducer, flow transducer, and
ambient temperature sensor as defined earlier in this chapter.
▲
(Figure
"Removing the
Panel" on page
7-7
Thermo Fisher Scientific
in
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