Service Guide 5
U8001A/U8002A User’s and Service Guide 39
Troubleshooting
This section provides a brief check list of common failures.
Before troubleshooting or repairing the power supply, make
sure that the failure is in the instrument rather than any
external connections. Also make sure that the instrument is
accurately calibrated.
Unit is Inoperative
• Verify that the AC power cord is connected to the power
supply.
• Verify that the front- panel power switch is at "ON" position.
• Verify the power- line voltage setting.
• Verify that the power- line fuse is installed:
Model Agilent Part Number Part Description
U8001A 2110-0014
2110-0006
Fuse 4.0 A T for 100 Vac and 115 Vac
Fuse 2.0 A T for 230 Vac
U8002A 2110-0722
2110-1425
Fuse 6.25 A T for 100 Vac and 115 Vac
Fuse 2.8 A T for 230 Vac