Hyundai HQP421HR - Manual (Page 96)

93
APPENDIX
Troubleshooting
Installation Problems
Picture Problems
Symptom
How can I install an
antenna?
TV screen is not clear after
installing an indoors
antenna.
How can I view cable
broadcasting?
Symptom
Neither picture nor
sound comes up.
Picture turns on slowly
after power is on.
Vertical and horizontal lines
and web patterns briefly
appear on the
picture and shake.
Input Source information
only appears on black
screen.
Poor reception on some
channels.
Black and white on some
channels.
TV won’t turn on.
Screen is too bright or too
dark.
Possible solution
Refer to pages 23~24.
Indoors antenna may experience poor reception due to surrounding buildings. Please
install an outdoors antenna or wireless antenna.
Please install a cable broadcasting receiver (Converter).
Possible solution
Check whether power is on.
Check whether the power is cut or whether power cord is properly connected.
Try to plug another product’s power cord to the outlet the PDP is plugged into.
This symptom is not a malfunction. This delay is designed to prevent the distorted and
noisy picture when power is on. However, if the picture does not appear more than 5
minutes after power is on, call a service center.
This symptom may be caused by interference from other electric appliances. Please
avoid using a cordless phone, hairdryer, and electric drill, etc.
Check whether your TV is properly connected to external devices.
Check whether you selected proper channels. Try re-orienting your antenna. Ensure
LNA is activated.
Check other channels for black and white screen. Adjust colour.
Ensure the power cord is plugged.
Adjust brightness.