Measurement Interface Board Replacement - Thermo Scientific 49i Instruction Manual

Measurement
Interface Board
Replacement
Thermo Fisher Scientific
6. Pop off the motherboard from motherboard support bracket, and
remove the motherboard.
7. To install the motherboard, follow previous steps in reverse.
8. Calibrate the analog voltage outputs as described earlier in this chapter
(all ranges).
Use the following procedure to replace the measurement interface board
(Figure 7-9).
Equipment Required:
Measurement interface board
Philips screwdriver
Equipment Damage Some internal components can be damaged by small
amounts of static electricity. A properly grounded antistatic wrist strap must
be worn while handling any internal component.
1. Refer to "Removing the Measurement Bench and Lowering the
Partition Panel" in this chapter to lower the partition panel, then
proceed to the next step below.
2. Unplug all connectors. Note the locations of the connectors to facilitate
reconnection.
3. Remove the two retaining screws from the top of the board.

Measurement Interface Board Replacement

Model 49i Instruction Manual
Servicing
7-21