Board Replacements; Basic Troubleshooting Procedures - PictureTel Concorde 4500 Servicing Manual

TROUBLESHOOTING

Board Replacements

Basic
Troubleshooting
Procedures
4-6
When a fault code appears, it does not always mean that
something is seriously wrong. Try rebooting the system if
you receive a fault code. This may correct the problem.
If a power-on self-test fails after you have rebooted the system and
continues to indicate that a board is not functioning properly, you
should try reseating the board. If the board still fails to respond you
should replace the failing board.
This section tells you how to troubleshoot these problems:
No system power
No video to monitor
No audio
Network or communications failure
Peripheral failure