Rockwell Automation Allen-Bradley 6181, User Manual, Page: 69 / 91

System Troubleshooting 10–5
Publication 6181-6.0
If characters are not displayed on an external monitor:
√
Is the monitor functioning properly?
√
Is the video cable properly installed?
√
Check that selected character color is not set the same as the
background color.
√
Is the video driver properly installed?
√
Reboot the 6181 Computer with the external monitor connected and
powered up.
If the hard drive active LED indicator does not come on when the hard
drive is being accessed:
√
Check the EIDE cable connections to the drive.
√
Check BIOS Setup for proper configuration. Is drive enabled?
√
Check the connections on the I/O board.
√
Reboot the 6181 Computer.
If the Power On LED indicator does not come on:
√
Check the front panel connector on the processor board.
√
Check the power cord.
√
Check the connections on the I/O board.