Solving Power Problems - HP Rp3000 - Point of Sale System Reference Manual

Sliding door that covers the optical drive will not open.
Cause
The sliding door is locked.
Not getting the correct power on the COM port.
Cause
COM port jumpers are not set correctly.

Solving Power Problems

Common causes and solutions for power problems are listed in the following table.
Table D-2
Power supply shuts down intermittently.
Cause
Power supply will not turn on because of internal power supply
fault.
Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two
second pause, and the computer beeps two times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
The heatsink is not properly attached to the processor.
Powered POS peripherals do not power on.
Cause
Power supply cable not connected to powered USB card.
98 Appendix D Troubleshooting Without Diagnostics
Solving Power Problems
Solution
Use the provided key to unlock the door then slide the door
down.
Solution
See "Configuring Power to a Serial Port" in the Hardware
Reference Guide for instructions on setting the COM port
jumpers for power.
Solution
Contact an authorized service provider to replace the power
supply.
Solution
1. Ensure that the computer air vents are not blocked.
2. Open hood, press power button, and see if the system fan
spins. If the system fan is not spinning, make sure the
fan's cable is plugged onto the system board header.
3. If fan is plugged in, but is not spinning, then replace the
fan assembly.
4. Contact an authorized reseller or service provider.
Solution
Make sure power supply cable is connected to powered USB
card.