Trouble Shooting Q&A - Nikkai 4.3 inch Touch Screen User Manual

V. Trouble Shooting Q&A
Most of the troubleshooting issues can be easily solved. The common cases and
their respective solutions are listed in the table below. If the problem persists,
please contact the after sales service.
Problem
No video, no audio.
In DVB-T mode, the
number of DVB-T
channels is not as
much as we
expected.
In DVB-T mode, all of
the channels show
"no signal or random
mosaic tiles appear
on the display."
There is no sound
output.
Possible Reason
The battery is
discharged.
The power adapter is not
plugged properly.
The device is not powered on.
The program table is empty.
The number of
channels is limited due to the
local broadcasting
The available channels can
vary depending on the area.
The signal quality of some TV
channels is too low.
Some TV channels are not
available.
Some TV channels
quality is too low.
Wrong antenna is used.
No DVB-T service is provided
in the area.
The audio volume is too low.
The audio is muted.
The earphones are
connected properly.
The device is located close to
strong magnetic field.
totally Connect the unit to an external power
source to charge the battery.
Check whether the connector of the power
adapter is completely plugged into the
power jack of the device.
Slide [POWER SWITCH] to "ON" position.
Perform "Auto Search" to discover the
available channels.
available
Perform "Auto Search" or "Manual Search"
system.
to rescan all the channels.
Use the external antenna to increase the
reception sensitivity. For indoor use, place
the antenna close to a window and place it
on high point.
Only the locally free broadcasted channels
can be viewed. They can differ depending
on the area.
Use the external antenna to increase the
reception sensitivity. For indoor use, place
signal
the antenna close to a window and place it
on high point.
Use only the external antenna provided
with this unit.
Check your country DVB-T coverage map. It
is not possible to watch digital TV/listen to
digital radio in non-covered areas.
Slide the volume bar to raise the volume.
Press
function.
not Check if the earphone plug is clean and well
inserted.
Move the device to another location and use
it again.
Solution
icon to disable the mute
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