Motorola MBP421 User Manual page 18

Cannot view the video image of the object from the parent
unit
Cannot hear sound or baby cry from the parent unit
The baby monitor system produces a high-pitched noise
Battery pack in the parent unit is running low quickly
• The LCD brightness may be set too low. Try to increase the brightness level.
Refer to section 3.6 for details.
• The parent unit and the monitoring baby unit may be out of range with each
other. Reduce the distance between the units, but not closer than 3 feet.
• Battery pack in the parent unit may be drained. Connect the parent unit to
the electrical outlet with the supplied power adapter for recharging.
• The volume level in the parent unit may be set too low, increase the volume
level of the parent unit. Refer to section 3.5 for volume level settings.
• The parent unit and the monitoring baby unit may be out of range with each
other. Reduce the distance between the units, but not closer than 3 feet.
• The parent unit and the baby unit are too close to each other. Make sure the
parent unit and baby unit are at least 3 feet away from each other.
• The speaker volume of the parent unit may be set too high. Decrease the
volume of the parent unit.
• The LCD brightness may be set too high. Try to decrease the brightness
level. Refer to section 3.6 for details.
• The volume level of the parent unit may be set too high which consumes
power. Decrease the volume level of the parent unit. Refer to section 3.5 for
volume level settings.
18 Troubleshooting