NUK Eco Control Audio 500, Operating Instructions Manual

Page: 32 / 122

30
7.2 Changing the battery
The installed 3.7V 1200 mAh lithium polymer
battery (LiPo) may be replaced only by a
genuine replacement battery as used by us.
If necessary please contact our Product
Service (see "Product service babyphone in
Europe“ on page 116).
1. Remove the battery cover
9 on the back
of the parent unit 8 , by sliding it
downwards.
2. Remove the defective battery.
3. Put the new battery in its compartment
as indicated on the unit. Make sure you
insert it with the correct polarity (+ and -).
4. Slide the battery cover 9 back onto the
parent unit 8 .
5. Initially, charge the parent unit
continuously for 10 hours to activate the
full battery capacity (see "4.1 Connecting
the parent unit" on page 24).
8. Faults and how to remedy them
Fault Cause Remedy
Baby unit or
parent unit does
not work No power supply Set up the power supply (see "4.4 Power
supply" on page 26)
Battery of parent unit is empty Charge the battery (see "4.4 Power supply"
on page 26)
The unit is not switched on Switch it on (see "4.1 Connecting the parent
unit" on page 24 and "4.2 Connecting the
baby unit" on page 25)
The baby unit and parent unit are
too far apart, or the signal is being
blocked by solid walls or other
electrical equipment Reduce the distance or place the parent
unit somewhere else
Loud whistling Feedback due to the parent unit
and baby unit being too close
together Increase the distance to at least 2 – 3 m
Reduce the volume and the VOX level on
the parent unit if you are in the immediate
vicinity of the baby unit (see "6.3 Using the
VOX function to adjust the transmission
sensitivity" on page 28 and "6.4 Adjusting
the volume control" on page 29).
Parent unit is
beeping Connection to the baby unit has
been lost Set up the connection (see "4.3 Connecting
baby unit and parent unit" on page 25)
Problem with the power supply Check the power supply (see "4.4 Power
supply" on page 26)
Connection
indicator
13 has lit
up red
The parent unit is out of range Set up the connection (see "4.3 Connecting
baby unit and parent unit" on page 25)
No sound from the
parent unit Volume is muted Increase the volume (see "Mute setting“ on
page 29)
VOX function is set too low Increase the transmission sensitivity (see
"6.3 Using the VOX function to adjust the
transmission sensitivity" on page 28 and
"3.1 Brief overview of messages" on page
24)