PictureTel Concorde 4500 Servicing Manual page 108

TROUBLESHOOTING
Table 4-3: No Display on the Monitor Checklist (Continued)
If you have these
symptoms...
No
PictureTel Ready
on the screen; the screen is
blank.
4-10
message 10. Check to be sure the input cables on the back of the monitor
match.
The Video input 1 cable must be plugged into the Video
input 1 connector on the back of the monitor.
11. Check to be sure the monitor has only one video source.
No other video input port on the monitor should have
anything connected to it.
Do this...