Technical data

2Service
Troubleshooting Hints
54 E3632A Service Guide
Troubleshooting Hints
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. The power supply's circuits allow
troubleshooting and repair with basic equipment such as a
digital multimeter and a 100 MHz oscilloscope.
Unit is inoperative
• Verify that the AC power cord is connected to the power
supply.
• Verify that the front- panel power switch is depressed.
• Verify that the power- line fuse is installed:
• Use the 4 AT, 250 V fuse for 100 Vac or 115 Vac
operation..
• Use the 2.5 AT, 250 V fuse for 230 Vac operation..
• Verify the power- line voltage setting.
• Refer to the E3632A User’s Guide.
CAUTION
This instrument contains CMOS integrated circuits which are
susceptible to failure due to electrostatic discharge. Refer to the
“Electrostatic Discharge (ESD) Precautions” on page 51 for further
handling precautions.