Prestigio GeoVision 4700-5700 Instructions Manual page 47

PROBLEM
The unit can
receive signals
now but can't
then; signals
received are not
stable.
Troubleshooting
POSSIBLE CAUSE
The built-in rechargeable
battery is weak.
The unit may be obstructed
by veil, such as heat
insulation paper.
Swing of the unit is too
great.
EN-22
POSSIBLE SOLUTION
Use the adaptor to supply
power or charge the
battery.
Remove the veil.
Avoid great swing of the
unit.