HP Rp3000 - Point of Sale System Troubleshooting Manual page 58

Table A-2 Diagnostic Front Panel LEDs and Audible Codes (continued)
Activity
52 Appendix A POST Error Messages
Beeps Possible Cause Recommended Action
Press and hold the power button for less than 4
seconds. If the hard drive LED does not turn on
green then:
1. Check that the unit is plugged into a working
AC outlet.
2. Open hood and check that the power button
harness is properly connected to the system
board.
3. Check that the power supply cable is properly
connected to the system board.
4. Check to see if the LED on the system board
is turned on. If it is turned on, then replace
the power button harness. If the problem
persists, replace the system board.
5. If the LED on the system board is not turned
on, remove the expansion cards one at a
time until the LED on the system board turns
on. It the problem persists, replace the power
supply.
ENWW