Servicing
Safety Precautions
Thermo Electron Corporation Model 48i Instruction Manual 7-3
Safety Precautions Read the safety precautions before beginning any procedures in this chapter.
Figure 7-1. 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 i-Port manual for the
firmware update procedure.
WARNING The service procedures in this manual are restricted to qualified
service representatives.
If the equipment is operated in a manner not specified by the manufacturer,
the protection provided by the equipment may be impaired.
CAUTION Carefully observe the instructions in each procedure.
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 (Figure 7-1). If an
antistatic wrist strap is not available, be sure to touch a grounded metal
object before touching any internal components. When the instrument is
unplugged, the chassis is not at earth ground.
Handle all printed circuit boards by the edges.
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