Troubleshooting – Philips SCD491 User Manual
Page 14

EN
15
Troubleshooting
Problem
Possible cause
Solution
Camera unit’s POWER
Unit not switched on.
Set OFF/ON/
switch (A-4)
light does not light up.
to ON (day) or
(night).
Batteries are empty.
Replace batteries.
AC power adapter (A-12)
Connect AC power adapter (A-12)
not plugged in.
to camera unit.
Connect AC power adapter (A-12)
to wall outlet.
Monitor unit’s POWER
Unit not switched on.
Set ON/OFF switch (B-8) to ON.
light does not light up.
Batteries are low.
Recharge batteries.
Battery life is at an end.
Replace batteries.
AC power adapter (B-10)
Connect power adapter (B-10) to
not plugged in.
monitor unit.
Connect power adapter (B-10) to
wall outlet.
Monitor unit’s display
Unit not switched on.
Set ON/OFF switch (B-8) to ON.
does not light up.
AUDIO mode selected.
Select AV or AUTO mode (B-6).
No sound/no picture.
Units set to different
Set both units to the same
channels.
channel (A-7, B-5).
Camera unit not switched on.
Set OFF/ON/
switch (A-4)
to ON (day) or
(night).
Interference from e.g.
Set both units to another (same)
household appliances, cordless
channel (A-7, B-5).
or cellular telephones.
Dark picture at night.
Batteries are low.
Replace/recharge batteries.
Brightness set too low.
Adjust brightness level (B-14).