PictureTel 4500 - Manual (Page 91)

85
Blank Screen
These are the steps to take if the screen is blank.
If you have this
symptom...
Do this...
The screen is blank. 1. Check to see if your system is in Standby mode by
pressing VIEW FAR END on the keypad.
If your system is in Standby mode, pressing this
button makes the video image reappear.
2. Make sure the power switches on the electronics
module, the WorldCart, and the monitor are set to 1
(on).
3. Make sure all cable connections to your system and
the monitor are correct and secure.
4. Make sure you have selected a valid source for video
display.
5. Make sure ON/STANDBY on the monitor is pressed in.
6. Make sure the monitor is set to Video 1 or Ext 1 video
mode.
7. Isolate the problem to the cameras by having
someone call you and report if your video source is
being sent.