Keysight Technologies N5244/5B Service Manual page 105

Troubleshooting
Power Up Troubleshooting
Figure 4-2 A19 Midplane Board Power Supply LED Indicators and Measurement Points
The instrument contains potentially hazardous voltages. Refer to the
safety symbols provided on the instrument and in
Considerations" on page 1-3
removed. Make sure that the safety instructions are strictly followed.
Failure to do so can result in personal injury or loss of life.
Do not operate the analyzer with the outer cover removed for more than
30 minutes, as this could cause the analyzer to overheat which could
result in costly damage.
Keysight N5244B/45B Service Guide
before operating the unit with the cover
"General Safety
4-11