HANNspree ST40-12A1 - Manual (Page 54)

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Cannot operate menus.
• If OSD items are colored light blue,
the system is in a state such that
those settings are not available. For
example, video setting is available in
TV mode.
No image but have sound.
• Make sure the video signal cable is
connected properly.
No sound but have image.
• Make sure the source device is func-
tioning properly.
• Set the volume to a higher level.
• Make sure the audio cable is con-
nected securely.
• Turn the mute off.
Screen image turns over.
• Make sure the video signal cable is
connected properly.
Snow appears on the screen.
• Adjust the location of the antenna,
placing it far from roads or sources of
interference.
• Check the antenna and the video sig-
nal line connections.
Blurred or overlapped
images.
• Readjust the sharpness setting.
• Choose programs with high quality
signals.
• Adjust the direction of the antenna or
change the video signal cable.
Situation Solution