Samsung CL21B501HLMXZS, Service Manual

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Troubleshooting
4-4 Samsung Electronics
5. Channel
Problem Solution
There are no channels available.
■ Check if the antenna is properly installed.
■ Press the Auto Channel button to store channels.
■ Contact your local broadcasting service station.
Some channels are not available.
■ Adjust the position, angle or direction of the antenna.
■ Activate the Reception Sensitivity Boost feature.
■ Contact your local broadcasting service station.
■ Use the number keys to select a specific channel and press Store/Clear
to memorize it.
Only the UHF (14-69) channels are not available. Check if the antenna is able to receive UHF signals.
6. Others
Problem Solution
The TV makes a noise as if something is dropping
inside.
This noise may occur when the plastic material inside the TV expands or
contracts according to the seasonal temperature or humidity. This is like the
noise from a furniture/cabinet/sink unit, and there is no need for concern.