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16. Troubleshooting
Before contacting customer support try to solve the problem with the tips from the following table:
Problem
Possible cause and proposal for solution
No image, status LED not on
• Check, whether the power switch at the right bottom of the device is turned on.
• Check if the mains plug sits properly in the wall outlet.
• Check mains power on the wall outlet with a different device or connect TV set to
different wall outlet.
• Check if the signal cables from source devices are properly connected.
• Check if the source device is turned on.
Image flickers
• Check if the input signal of the source device matches the specifications of the TV
set.
• Check if the PC menu settings match the video output settings of the PC.
• Set the values again.
TV set cannot be turned on.
• Check if the mains plug sits properly in the wall outlet.
• Check, whether the power switch at the right bottom of the device is turned on.
No sound.
• Check if the audio cables are properly connected.
• Check the volume.
Volume too low.
• Check the volume.
• Set the volume.
• Check if the volume is limited in the hotel mode menu.
Snowy image.
• Check if antenna or antenna cable are damaged.
Remote control does not work.
• Check if the batteries are exhausted.
• Check if the batteries make proper contact and are inserted with the correct polar
-
ity.
• Ensure that no obstacles are between remote control and sensor.
• Check if strong light sources shine onto the sensor.
Device is not operational.
• Disconnect from mains power supply for approx. 5 seconds. Then switch the
device on again.
Defective Pixels
Defective pixels are no TFT panel malfunction. Production-related defective pixels cannot be avoided. Just like conver-
gence defects for cathode ray tubes are defective pixels only a tolerance value.
Our TFT panels offer best value for price and quality.
Defective pixels can be caused by pressure on the panel.
Complex testing procedures during and after manufacture ensure that all defective pixels of our TFT panels are below
the respective tolerance level.
The number of defective pixels depends on the kind of pixel and/or sub pixel defect, resolution and panel size.
Summary of Contents for CTV 3204 LED
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