The connection indicator
on the base station and/or the connection indicator
on OSKAR is off or flashing.
Possible cause
Possible solution
Your OSKAR is switched off.
Switch OSKAR on by turning the on/off volume knob .
If the TV has been switched off or muted for more than 5 minutes, the base station and OSKAR automatically enter energy-saving mode.
Switch on your TV or unmute it, then switch OSKAR off and on again.
The cable connection is incorrect.
Check that the USB power cable is firmly connected to the base station and the USB power adapter . Also make sure that the optical audio cable or the 3.5 mm audio cable is firmly connected to the base station and the TV.
Your OSKAR and the base station are not paired.
Reset the base station, then pair OSKAR with the base station again. See the steps below the table.
Resetting the base station and pairing OSKAR again
Switch OSKAR off.
Disconnect the USB power cable
from the base station
and wait approximately 30 seconds before reconnecting the USB cable.
The base station resets automatically.
Switch OSKAR on again. When the base station is paired, the connection indicator
lights up continuously.
Place OSKAR near the base station.
Use a pointed object to briefly press the PAIRING button
. The connection indicator on the base station flashes.
Switch OSKAR on, then press and hold the speech filtering button
for approximately 5 seconds until the connection indicator on OSKAR flashes. Both connection indicators light up when the devices are paired.
OSKAR does not play sound
Connection indicators are lit or flashing
The connection indicator on the base station and/or OSKAR is lit or flashing.
Possible cause
Possible solution
The TV sound is muted.
Increase your TV's volume or unmute it.
The distance between OSKAR and the base station is too great.
Move OSKAR closer to the base station.
The battery is low.
Recharge OSKAR.
The digital audio setting is not set to PCM.
Set your TV's digital audio setting to PCM. See your TV's user manual.
The connection between the base station and OSKAR has been interrupted.
Reconnect the base station and OSKAR.
TV sound is audible through OSKAR, but the TV itself remains silent
Possible cause
Possible solution
When OSKAR is connected via the TV's headphone socket, the TV's built-in speakers usually remain muted.
Adjust your TV's settings. See your TV's user manual.
The sound is too quiet
The sound is too quiet even when OSKAR's volume is set to maximum.
Possible cause
Possible solution
The TV's headphone volume is too low.
Increase the TV's headphone volume. See your TV's user manual.
The sound frequently cuts out
Possible cause
Possible solution
Devices such as smartphones, Wi-Fi access points and microwave ovens generate radio waves and may cause radio interference.
Place OSKAR and the base station at a sufficient distance from such devices.
Interference is heard while watching TV
Possible cause
Possible solution
The connection to the 3.5 mm audio socket is not properly established.
Connect the audio cable firmly to the TV's headphone socket and the base station . Disconnecting and reconnecting it several times may improve the connection.
The battery does not charge
Possible cause
Possible solution
OSKAR is not making charging contact with the base station.
Clean the charging contacts with a soft cloth. Do not press too hard on the charging points, to avoid malfunctions.