If you have no display, you may need to try recharging or replacing the battery pack. You may need to try the following tips:

• Reset the units. Disconnect the battery pack of the Monitor unit and unplug both the units' electrical power, then plug them back in.
• Is the unit turned on? Press and hold the ON/OFF key on the Monitor unit to turn it ON.
• Is the correct camera selected? Change the camera number, if necessary.
• Is the video display turned on? Press the VIDEO ON/OFF key to turn it on.
• When operating using batteries, only the Display will go blank after 2 minutes to save power. The unit is still active and will give you audio alerts. You can reactivate the screen by pressing any key.