Mitsubishi Electric MELIPC MI5000 Series User Manual page 202

POWER LED of the power supply module turns off
Check the following items.
Check item
Is power supply module wiring correct?
Is the input voltage within specifications?
If there are no errors in power supply module wiring and input voltage, the power supply unit may have reached the end of its
operating life or there is a hardware fault. Replace it with a new power supply module.
The MAIN LED is on, flashing, or off
Check the following items.
If the VX RDY LED is not lit
Check item
Is the off-line mode status displayed on the dot matrix LED?
Is the VX RDY LED off and the MAIN ERR LED on?
Is the VX RDY LED off, and the MAIN ERR LED flashing?
Is the VX RDY LED flashing?
Are all other LEDs off?
"bootapp.sys not found" is displayed on the display.
APPX
200
Appendix 1 Troubleshooting by Symptom
Corrective action
Wire the power supply module correctly.
Change the input voltage to within specifications.
Corrective action
After offline mode operation is complete, turn the product power supply OFF.
• System watchdog timer error occurred.
• Handle in accordance with the system watchdog timer error code (3E41H).
If the same phenomenon remains after these measures, this may indicate a
hardware fault with the module. Consult your local Mitsubishi representative.
A severe error has occurred, therefore take measures in accordance with the
error code.
If the same phenomenon remains after these measures, this may indicate a
hardware fault with the module. Consult your local Mitsubishi representative.
Wait a moment because the VxWorks part is preparing.
If the VX RDY LED does not turn ON after waiting, and the WIN RDY LED
turns ON, product initialization or hardware self-diagnosis may have failed.
Use the Start menu in Windows perform a shutdown, and then turn the power
supply of this product OFF. After turning the power OFF, start the product in
offline mode, and then initialize the product.
Wait a moment because the VxWorks part is preparing.
If, after waiting, the VX RDY LED does not come on, then this may indicate a
hardware fault, therefore consult your local Mitsubishi representative.
This may indicate a hardware fault with the product. Consult your local
Mitsubishi representative.