Agilent Technologies N5242A Service Manual page 82

Troubleshooting
Power Up Troubleshooting
Figure 4-2 A15 Midplane Board Power Supply LED Indicators and Measurement Points
WARNING 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
CAUTION
30 minutes, as this could cause the analyzer to overheat which could result in
costly damage.
If any one individual voltage supply from the A16 power supply develops an
NOTE
over-voltage or over-current problem, all supplies are affected. The cause of
the over-voltage or over-current condition can be the A16 power supply itself,
or any assembly to which the A16 power supply provides voltage. To isolate
the cause, continue to the assembly removal process as described in the
section titled
4-8
before operating the unit with the cover
"If Any Supply Voltage Is Missing" on page
PNA Series Microwave Network Analyzers
"General Safety
4-9.
Service Guide N5242-90001
N5242A