Qls 21TS1020, Service Manual

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The following problems do not always indicate a hardware failure. Therefore, please use the troubleshooting guide below
before calling for repair service. If, after following the guide none of the remedies work, unplug the TV and call for
service.
Make sure the power cord is plugged in,
then press POWER button.
Check battery in the remote control.
(Maybe batteries are dead.)
Ensure the TV power is ON .
Check antenna/ cable connections.
Try dif ferent channel.
Maybe sound is muted. Try pressing
VOL+ button is not set to minimum.
Try another channel.
Check the AV cables for disconnection.
Maybe the TV is being affected by
interference from automobiles, trains,
high-voltage transmission lines, neon
signs or another sources of interference.
Try redirecting or relocating your antenna
to reduce the affects of the interference.
Change channels to confirm if the
symptom is still present.
Try another channel.
Check antenna connections.
If using VCR, check TV/VCR button.
Adjust fine tuning control.
Probably local interference, such as an
appliance.
When the VCR test signal (TSG) is
received, the lower side of the test
pattern is distorted as shown in the
figure. This is not a malfunction and the
playback picture is not influenced by it.
That channel may be locked out with
SKIP CHANNEL function.
Problem Checks and Adjustments
TV will not turn on
No picture, no sound
No sound, picture OK
Spots on the screen (Snow)
Poor reception of broadcast
channels
VCR
Cannot select a certain channel
Check for any obstacle between the
remote control and the remote control
sensor window .
Maybe batteries are dead. Try replacing
batteries with new ones.
Check for incorrect battery orientation.
Please change the direction, height or
positionof the antenna. Reflections from
building or mountains might cause this
phenomenon. A highly directional
antenna may improve the reception.
Check whether all the picture adjustments
have been properly performed.
Enter into the (Picture mode) inside the
menu to select a different picture set-up.
Remote Control does not operate
The picture is doubled or tripled
(GHOST)
Degraded colours or tints
EN 31 3P66 8.
Troubleshooting
8.Troubleshooting