Thermo Scientific 5028i Instruction Manual page 185

Thermo Fisher Scientific
Chapter 7
Servicing
This chapter explains how to replace the Model 5028i 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 section 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.
This chapter includes the following parts information and component
replacement procedures:
"Safety Precautions" on page
l
"Firmware Updates" on page
l
"Accessing the Service
l
"Replacement Parts
l
"Cable List" on page
l
"External Device Connection
l
"Removing the Measurement Case Assembly and Rear
l
page 7-9
"Fuse Replacement" on page
l
"Fan/Filter Replacement" on page
l
"Detector Amplifier Assembly
l
"Detector Amplifier Board
l
"External Pump Replacement" on page
l
"Pressure Board Replacement" on page
l
"Pressure Board Calibration" on page
l
"Preventive
"Service Locations" at the end of
7-3
7-4
Mode" on page 7-4
List" on page 7-5
7-6
Components" on page
7-10
7-10
Replacement" on page
Calibration" on page
7-13
7-14
7-17
Model 5028i Instruction Manual
"Model 5028i
Maintenance"
7-7
Panel" on
7-11
7-12
7-1