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Servicing
I/O Expansion Board (Optional) Replacement
Thermo Fisher Scientific
Model 43i Trace Level-Enhanced Instruction Manual
7-37
Figure 7–18.
Replacing the Input Board
3.
Loosen the two screws securing the input board assembly to the
bracket, slide the assembly up, and remove from bracket.
4.
Install the input board assembly by following the previous steps in
reverse.
Use the following procedure to replace the optional I/O expansion board
(
Figure 7–19
).
Note
After replacing the optional I/O expansion board, calibrate the
current outputs and the analog voltage inputs. See the “Analog Output
Calibration” procedure and the “Analog Input Calibration” procedure in
this chapter.
▲
Equipment Required:
I/O expansion board
Nut driver, 3/16-inch
I/O Expansion
Board (Optional)
Replacement
Power Supply Bracket Screws (2)
Input Box Screws (2)
Input Board
Power Supply Bracket
Input Box
Input Board Screws (4)