Keysight 9000 Series Service Manual page 53

4
Safety 54
Tools Required 54
Default Setup 54
To troubleshoot the oscilloscope 55
Primary Trouble Isolation 56
Power Supply Trouble Isolation 60
How to Use the Power Fault LEDs 61
Display Trouble Isolation 65
To check the backlight inverter voltages 66
To check the display board video signals 67
Front Panel Display Trouble Isolation 68
Front Panel Trouble Isolation 70
Motherboard Verification 71
To set up the BIOS 72
Acquisition Board Trouble Isolation - Scope Self Tests 73
AutoProbe Board Trouble Isolation 75
Keyboard Trouble Isolation Procedure 76
To check the LEDs 77
Before You Contact Keysight 78
To check probe power outputs 79
Troubleshooting