Agilent Technologies 16900A

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68 16900A, 16902A, and 16903A Service Guide

6 Replacing Assemblies

To remove and replace the backlight inverter board

1 Perform previous procedures:

• “To prepare the instrument for disassembly" on

page 48

• “To remove and replace the cover" on page 52

• “To remove and replace the front panel assembly" on

page 64

2 Place the front panel assembly face down and disconnect

the cables from the inverter board as shown.

3 Using a Torx T6 screwdriver, remove the 2 screws

securing the board to the front panel board.

4 Reverse this procedure to install the backlight inverter

board.

Backlight

Inverter Board

Inverter

Cable

T6 Screws (2)

LCD Cable

(pink)

Main Page

The Agilent 16900-Series Logic Analysis Systems - at a Glance3
Supplied Accessories4
Optional Accessories4
Service Strategy4
Contacting Agilent Technologies4
In this Service Guide5
Table of Contents7
General Information11
Electrical and Operating Environment Characteristics12
Dimensions13
Preparing for Use16
To Inspect the Logic Analysis System16
To Apply Power16
To Connect Multiple Frames17
To Install Measurement Modules17
To Clean the Instrument17
Testing Performance19
Testing Performance20
Self-Tests20
Test Interval20
To Perform the Power-Up Tests21
Calibrating and Adjusting23
Calibration Strategy24
Calibrations and Adjustments for Modules24
Troubleshooting26
To Use The16900A and 16902A Flowcharts26
To Use The16903A Flowcharts32
To Troubeshoot Power Problems38
To Check the Power Supply Voltages40
16900A and 16902A Power Supplies40
16903A Power Supply41
To Run the Self-Tests42
Troubleshooting the CD-ROM Drive43
To Reinstall the Operating System44
Replacing Assemblies45
16900-Series Disassembly/Assembly46
Replacement Strategy46
Tools Required46
To Save the License File47
To Obtain the Licensing Host ID47
To Prepare the Instrument for Disassembly48
To Power off the System48
To Remove and Replace Optional Modules or Filler Panels50
To Remove and Replace the Cover52
To Remove and Replace the CPU Tray53
16900A and 16902A CPU Tray53
16903A CPU Tray54
To Remove and Replace the PCI Board56
16900A and 16902A PCI Board56
16903A PCI Board56
To Remove and Replace Optional Interface Cards58
To Remove and Replace the I/O Board60
16900A and 16902A I/O Board60
16903A I/O Board61
To Remove and Replace the Hard Disk Drive62
To Remove and Replace the Motherboard63
To Remove and Replace the Front Panel Assembly64
To Remove and Replace the CD-ROM Drive65
To Remove and Replace the Touch-Screen Controller Board66
To Remove and Replace the Backlight Inverter Board68
To Remove and Replace the Front Panel Interface Board69
To Remove and Replace the LCD Bracket Assembly71
To Remove and Replace the Touch-Screen/Display Assembly72
To Remove and Replace the Keypad and Keypad Board74
To Remove and Replace the On|Off Key76
To Remove and Replace the Power Supplies77
16900A and 16902A Power Supplies77
16903A Power Supply78
To Remove and Replace the Card Cage and Fans80
16900A and 16902A Card Cage and Fans80
To Remove and Replace the Line Filter Assembly82
To Remove and Replace the Module Interface Board83
Returning Assemblies85
Replaceable Parts87
Replaceable Parts Ordering88
Parts Listed88
Parts Not Listed88
Direct Mail Order System88
Exchange Assemblies88
Replaceable Parts List Description89
Cover Assembly90
Front Panel Assemblies91
16900A and 16902A Frames94
16903A Frame97
Power Cables and Plug Configurations100
Theory of Operation103
Theory of Operation104
16900A and 16902A Systems Block-Level Theory104
16900A/16902A CPU Subsystem109
16900A/16902A PCI Board110
16900A/16902A MIB (Module Interface Board)111
16900A/16902A Input/Output Board112
16902A/16903A Front Panel Assembly114
16900A/16902A/16903A Power up Routine115
16903A Block Level Theory120
16903A CPU Subsystem123
16903A PCI Board124
16903A MIB (Module Interface Board)125
16903A I/O (Input/Output) Board127
16903A Front Panel Assembly128
16903A Power up Routine128
Index129

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