Samsung RM40D User Manual page 126

Sound issue
There is an echo sound coming from the speakers.
Remote control issue
The remote control does not work.
Source device issue
A beeping sound is heard when my PC is booting.
Other issue
The product smells like plastic.
The product appears tilted.
Audio or video cuts out intermittently.
Different decoding speeds between the product speakers and external speakers can cause an echo.
Speaker Select to External.
In this case, set
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.
If a beeping sound is heard when your PC is booting, have your PC serviced.
The plastic smell is normal and disappears over time.
Remove and then attach the stand again to the product.
Check the cable connection and connect it again if required.
Using a very hard or thick cable may corrupt audio and video files.
Make sure cables are flexible enough to ensure durability. When mounting the product onto a wall, it
is recommended to use right-angle cables.
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