Status Lights - HP E3491A Installation And Service Manual

Solving Problems

Status Lights

The HP E3491A Pentium Probe communicates various modes and
error conditions via the status lights. The meanings of the status
lights are shown on the previous page.
The following table gives more information about the meaning of the
power and target status lights.
= LED is off
= LED is on
= Not applicable (LED is off or on)
Power/Target Status Lights
Pwr/Target
LEDs Meaning
HP E3491A Pentium Probe is not connected to power supply
No target system power, or HP E3491A Pentium Probe is not connected to
the target system
Target system is in a reset state
Only boot firmware is good (other firmware has been corrupted)
Target system is executing in Debug Mode
Target system is executing user code
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