Chapter 7 Servicing - Thermo Scientific 48i Instruction Manual

Thermo Fisher Scientific
Chapter 7
Servicing
This chapter explains how to replace the Model 48i subassemblies. It
assumes that a subassembly has been identified as defective and needs to be
replaced (or is an "expendable" item, not covered under warranty.
Expendable items are indicated with an asterisk (*) in the
Replacement Parts" table.
For fault location information refer to the
chapter and the "Troubleshooting" 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 Case Assembly and Lowering the
●
Partition Panel" on page
"Fuse Replacement" on page
●
"Fan/Filter 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
●
"Preventive
"Service Locations" on page 7-41.
7-3
7-4
Mode" on page 7-4
List" on page 5-2
7-6
Components" on page
7-8
7-8
7-10
7-11
7-12
7-14
7-15
7-16
"Model 48i
Maintenance"
7-6
Model 48i Instruction Manual 7-1