Situation

Solution

 

 

 

• If OSD items are colored light blue,

 

the system is in a state such that

Cannot operate menus.

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.

 

 

 

 

• Make sure the source device is func-

 

tioning

 

properly.

No sound but have image.

• Set the volume to a higher level.

 

• Make sure the audio cable is con-

 

nected securely.

 

• Turn the mute off.

 

 

 

• Make sure the video signal cable is

Screen image turns over.

connected

 

properly.

 

 

 

• Adjust the location of the antenna,

 

placing it far from roads or sources of

Snow appears on the screen.

interference.

 

• Check the antenna and the video sig-

 

nal line connections.

 

 

 

• Readjust the sharpness setting.

Blurred or overlapped

• Choose programs with high quality

signals.

images.

• Adjust the direction of the antenna or

 

 

change the video signal cable.

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HANNspree ST31-15A1 user manual If OSD items are colored light blue