Samsung PDP TV E-Manual page 105

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Signal Information
is either perfect or the channels are unavailable. Adjust your aerial to increase
signal strength.
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Reset: Reset all settings to the factory defaults except network settings.
N
The PIN input screen appears before the setup screen.
N
Enter your 4-digit PIN. Change the PIN using the
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(digital channels only): HDTV channel's reception quality
English
Change PIN option.
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