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Thermo Fisher Scientific
Chapter 7
Servicing
This chapter explains how to replace the Model 48i Trace Level-Enhanced
subassemblies. It assumes that a subassembly has been identified as
defective and needs to be replaced.
For fault location information refer to the "Preventive Maintenance"
chapter and the "Operation" chapter in this manual.
The service mode described in the "Operation" chapter also includes
parameters and functions that are useful when making adjustments or
diagnosing problems.
For additional service assistance, see
This chapter includes the following parts information and component
replacement procedures:
"Safety
Precautions" on page
●
"Firmware
Updates" on page
●
"Accessing the Service
●
"Replacement Parts
●
"Cable
List" on page
●
"External Device Connection
●
"Removing the Measurement Bench and Lowering the Partition
●
on page
7-7
"Fuse
Replacement" on page
●
"Rear Panel Fan
Replacement" on page
●
"Bench Fan
Replacement" on page
●
"IR Source
Replacement" on page
●
"Filter Wheel
Replacement" on page
●
"Chopper Motor
Replacement" on page
●
"Optical Bench
Replacement" on page
●
"Optical Switch
Replacement" on page
●
"Service
Locations" on page 7-39.
7-2
7-3
Mode"
on page 7-3
List" on page
7-4
7-5
Components" on page
7-8
7-9
7-10
7-11
7-12
7-14
7-15
7-16
Model 48i Trace Level-Enhanced Instruction Manual
7-5
Panel"
7-1
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Troubleshooting
