Servicing
Firmware Updates
6-4 Model 49i Primary Standard Instruction Manual Thermo Fisher Scientific
Figure 6-1. Properly Grounded Antistatic Wrist Strap
Firmware Updates The firmware can be updated by the user in the field via the serial port or
over the Ethernet. This includes both the main processor firmware and the
firmware in all low-level processors. Refer to the iPort manual for the
firmware update procedure.
Accessing the
Service Mode
If the Service is not displayed on the Main Menu, use the following
procedure to display it.
a. At the Main Menu, press to scroll to Instrument Controls >
press > to scroll to Service Mode > and press .
The Service Mode screen appears.
b. Press to toggle the Service Mode to ON.
c. Press > to return to the Main Menu.
d. Return to the procedure.
Replacement Parts
List
Table 6-1 lists the replacement parts for the Model 49i Primary Standard
major subassemblies. Refer to Figure 6-2 to identify the component
location.
Table 6-1. Model 49i Primary Standard Replacement Parts
Part Number Description
100480-00 Front Panel Pushbutton Board
101491-16 Processor Board
100533-00 Motherboard
100539-00 Digital Output Board
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