Keysight E4980A Service Manual page 34

Troubleshooting
Power On Sequence Troubleshooting
Figure 4-3 Output Voltage Location For MY46516001 (E4980A), SG46500501 (E4980A
GSA), MY54304302 (E4980AL), SG54300101 (E4980AL GSA) and above.
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Table 4-1 Power Supply Unit Output
Supply
+ 3.3 V
+ 5 V
+ 12 V
34
If the voltmeter reading is not within the following limits, replace the power
supply unit.
Range
+ 3.2 to + 3.4
+ 4.8 to + 5.2
+ 11.4 to + 12.6
Keysight E4980A/E4980AL Precision LCR Meter