User's Manual

Appendix
Audio/Video & Navigation System YP-N3000H
43
English
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Sympton
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The unit does not operate.
USB playback is not possible.
Disc does not start playback.
No sound.
Cause
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Noise and other factors are causing the built-
in microprocessor to operate incorrectly.
The unit does not operate normally.
The type of USB loaded cannot be played by
this unit.
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format.
The region number of the DVD disc is
unmatched to the unit.
An unplayable disc is inserted.
The disc is dirty.
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The mute is on.
Correction
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Turn the unit on by pressing POWER button
on the front panel.
Turn the unit off and then on.
You can reset the unit. Press the RESET
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Check the type of USB memory.
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played by the unit.
Check the playable discs.
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Increase the volume.
Turn the mute off.