Curtis MPK8990UK - Manual (Page 21)

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3. Make sure music files are not corrupted.
Noise
1. Check if earphones is connected securely.
2. Check if earphones plug is clean, residue attached on earphones
plug may cause unnecessary noise.
3. Check if audio source is not damaged. Try to play other audio
files for comparison. Damaged audio files could cause unnecessary
noise and cause skip track.
Display characters corrupted
1. Check if the correct display language is selected.
Problem with downloading files
1. Check if the player is connected to PC properly.
2.
Check if the player’s memory is full.
3. Check if USB cable is working properly.