Samsung UHD Signage Player Box - Manual (Page 69)

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Remote control issue
The remote control does not work.
Make sure that the batteries are correctly in place (+/-).
Check if the batteries are flat.
Check for power failure.
Make sure that the power cord is connected.
Check for any special lighting or neon signs switched on in the vicinity.
Other issue
The product smells like plastic. The plastic smell is normal and disappears over time.
Audio or video cuts out intermittently.
Check the cable connection and connect it again if required.
Use a standard cable.
Small particles are found on the edges of the product. The particles are part of the product design. The product is not defective.