Keysight N9912A

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Keysight N9912A Service Guide 6-9

Replaceable Parts

Replaceable Parts Listings

Figure 6-3 Measurement Group, Exploded View

Main Page

Table of Contents5
Safety and Regulatory Information9
Information in this Chapter9
Chapter One At-A-Glance9
Safety Symbols10
General Safety Considerations11
Safety Earth Ground11
Before Applying Power11
Servicing11
Electrostatic Discharge Protection13
Regulatory Information15
Instrument Markings15
Battery Disposal16
General Product Information17
Information in this Chapter17
Chapter Two At-A-Glance17
Maintenance18
Physical Maintenance18
Electrical Maintenance18
Analyzer Options19
Option 110, Transmission Measurement19
Option 111, Quickcal19
Option 230, 4 Ghz Spectrum Analyzer19
Option 231, 6 Ghz Spectrum Analyzer19
Option 235, Preamplifier for Spectrum Analyzer19
Option 302, External USB Power Sensor Support19
Option 303, Network Analyzer Capability19
Keysight Support, Services, and Assistance20
Service and Support Options20
Calibration Options20
Contacting Keysight21
Shipping Your Analyzer to Keysight for Service or Repair21
Tests and Adjustments23
Information in this Chapter23
Chapter Three At-A-Glance23
Before You Begin25
Allow the Analyzer to Warm up25
Review the Principles of Connector Care25
Service Test Equipment27
Before Returning an Instrument to a Customer28
Operational Check29
Performance Tests (Keysight N7841A Software Package)30
General Tests30
Spectrum Analyzer Specific Tests30
Adjustments (Keysight N7841A Software Package)31
General Adjustments31
Spectrum Analyzer Specific Adjustments31
Troubleshooting33
Information in this Chapter33
Chapter Four At-A-Glance33
Protect against Electrostatic Discharge (ESD)34
Assembly Replacement Sequence35
Getting Started with Troubleshooting36
Check the Basics36
Troubleshooting Organization36
Power up Troubleshooting38
Front Panel Group Troubleshooting39
Measurement Group Troubleshooting40
Theory of Operation41
Information in this Chapter41
Chapter Five At-A-Glance41
Analyzer System Operation42
Functional Groups of the Analyzer42
Front Panel Group44
A3 Front Panel Interface Board44
A2 LCD Assembly45
Measurement Group46
A4 RF Board46
A5 System Board50
A6 SOM Board55
Main Battery55
Grounding and Power56
Grounding56
Voltages and Power Supplies56
Power Control and Management57
Battery Related Information58
Operation in Modes60
CAT and NA Modes61
SA Mode64
Power Meter Mode65
Temperature Related Information66
User Calibration in CAT and NA Modes67
One Port Calibration67
Two Port Calibration68
Quickcal68
Firmware Related Information69
General Description69
User Accessible Files69
Operational Files69
Erase User Data Utility70
Error Log70
Firmware Upgrades70
LAN Interface71
Replaceable Parts73
Information in this Chapter73
Chapter Six At-A-Glance73
Ordering Information74
Assembly Replacement Procedure75
Replaceable Parts Listings76
Entire Analyzer76
Front Panel Group76
Measurement Group76
Case Group76
Miscellaneous Parts84
Repair and Replacement Procedures87
Information in this Chapter87
Chapter Seven At-A-Glance87
Personal Safety Warnings88
Safety Earth Ground88
Electrostatic Discharge (ESD) Protection89
Assembly Replacement Sequence90
Removal and Replacement Procedures91
Removing and Replacing the Main Battery92
Removing and Replacing the Case Group Parts93
Removing and Replacing the Front Panel Group Assemblies107
Removing and Replacing the Measurement Group Assemblies115
Post-Repair Procedures130
Manual Checks and Procedures130
Processor Upgrade Procedures132
General Purpose Maintenance and Service Procedures135
Information in this Chapter135
Chapter Eight At-A-Glance135
Service Related User Operations136
To View Currently Installed Options136
To View the Current Firmware Revision, Etc136
To View the Error Log136
To View Temperature Readings136
Erase User Data Utility137
Options138
To View Currently Installed Options138
Re-Installing Options138
Firmware Upgrades140
To Check the Current Firmware Revision140
Miscellaneous Service and Maintenance141
Cleaning the Display141
Battery Maintenance141

Keysight N9912A - Page 81

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