Sorry for this.
You can open the front panel to check if the ribbon harness is loosen.
And please also make the unit get power supply and try to adjust the potentiometer as the below picture shown.
If the problem is still unsolved, it's possible that the display screen is broken, we can send you a new one to replace.
More details about the display screen replacement, please contact our ebay customer service.
RegardsStatistics: Posted by Jammy — Fri Nov 18, 2016 1:42 am
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