Service manual

HP E8401A, E8403A Product Specifications 61Appendix A
Power Supply Protection All outputs protected from over-temperature, over-voltage, over-current,
short-to-ground and short-to-other-output. Protection mode is full
shutdown. Recovery occurs when the fault condition is removed and power
of on/standby is cycled.
Repair Diagnosis and Troubleshooting through the front panel monitor and
connector.
• MTTR, Power Supply: <10 minutes (with mainframe and modules
fully installed in rack)
• MTTR, Impeller and/or Fan: <10 minutes (with mainframe and
modules fully installed in rack)
• Air Filter Replacement (if kit installed): <2 minutes.