Keysight Technologies 34980A User Manual

Name: Keysight Technologies 34980A
Brand: Keysight Technologies
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5 Disassembly and Repair

118 Keysight 34980A Service Guide

Power Supply Disassembly

1 To disassembly the power supply, press the catch on the power supply shield

and slide the shield to release it.

2 Remove the safety shield. Using a T20 Torx, remove the four screws holding

the power supply printed circuit board to the sheet metal.

Declaration of Conformity2
Safety Information2
Safety Considerations3
- General3
- Before Applying Power4
- Ground the Instrument4
- Do Not Operate in an Explosive Atmosphere4
- Do Not Remove the Instrument Cover4
- Do Not Modify the Instrument4
- In Case of Damage4
- Environmental Conditions5
Safety Symbols3
Sales and Technical Support6
Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC6
- Product Category6
Front Panel at a Glance7
Rear Panel at a Glance9
Rear Panel Connector Pinouts11
- External Trigger/Alarms Connector (Male D-Sub)11
- Annunciator Display Indicators12
- Analog Bus Connector (Female D-Sub)13
Front Panel Menu Reference14
Instrument Rack Mounting16
Table of Contents19
Obtaining Service24
- Operating Checklist24
- Types of Service Available24
- Repackaging for Shipment25
- Cleaning26
- Self Test Procedures26
- Electrostatic Discharge (ESD) Precautions27
Specifications29
Calibration Procedures31
- Keysight Technologies Calibration Services32
- Calibration Interval32
- Adjustment Is Recommended32
- Time Required for Calibration33
- Automating Calibration Procedures33
- Recommended Test Equipment34
- Calibration Security35
- Calibration Message36
- Calibration Count36
- Calibration Process37
- Aborting a Calibration in Progress37
- Performance Verification Tests38
- Internal DMM40
- Plug-In Modules55
Troubleshooting and Diagnostics68
- Troubleshooting Hints68
- Power Supply69
- Product Firmware Updates69
- Instrument Errors70
- Error Numbers71
- Calibration Errors76
- Isolate a Problem with a Plug-In Module81
- Relay and FET Replacement82
- 34921A 40-Channel Armature Multiplexer with Low Thermal Offset83
- 34922A 70-Channel Armature Multiplexer85
- 34923A 40/80-Channel Reed Multiplexer88
- 34924A 70-Channel Reed Multiplexer91
- 34925A 40/80-Channel Optically-Isolated FET Multiplexer94
- 34931A Dual 4X8 Armature Matrix97
- 34932A Dual 4X16 Armature Matrix100
- 34933A Dual/Quad 4X8 Reed Matrix105
- 34937A 32-Channel GP Switch109
- 34938A 20-Channel High-Current GP Switch111
Disassembly and Repair114
- Electrostatic Discharge (ESD) Precautions114
- Surface Mount Repair114
- Tools Required114
- Basic Disassembly115
- Power Supply Removal116
- Power Supply Disassembly118
- KOM Removal119
- Front Panel Removal120
- Front Panel Disassembly121
- DMM Removal122
- Backplane Removal123
Replaceable Parts125
- To Order Replaceable Parts126
- Backdating and Part Changes126
- Mainframe Replaceable Parts127
- 34921A Replaceable Parts128
- 34923A Replaceable Parts129
- 34931A Replaceable Parts130
- 34932A Replaceable Parts131
- 34937A Replaceable Parts132
- 34946A and 34947A Replaceable Parts132
- Vendor Addresses133
Backdating135
Diagrams137
- 34921A Component Locator138
- 34922A Component Locator139
- 34923A Component Locator140
- 34924A Component Locator141
- 34925A Component Locator (Top)142
- 34925A Component Locator (Bottom)143
- 34931A Component Locator144
- 34932A Component Locator145
- 34933A Component Locator146
- 34937A Component Locator147
- 34938A Component Locator148

Keysight Technologies 34980A User Manual

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Keysight Technologies 34980A Specifications

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Brand	Keysight Technologies
Model	34980A
Category	Measuring Instruments
Language	English