Samsung HW-E450C-ZA - Manual (Page 12)

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instaLLing tHe ferrite cOre tO HDMi in/OUt caBLe
Wind both HDMI IN/OUT cables together, make one
turn around the core.
(Start winding at 5-10cm away from the plugs)
Close the lock back.
Lift up to release the lock and open the core.
instaLLing tHe ferrite cOre tO aUDiO/UsB caBLe
Place the audio cable or USB cable on the
opened core.
Close the lock back.
Lift up to release the lock and open the core.