Premier MS-4780USD Manual De Instrucciones página 11

TROUBLE SHOOTING
Symptom Remedy
Make sure volume is not on 0 position.
Check if there are sound sources (USB/TF/AUX IN) plug into player
panel.
No Sound
Check if there are music files in the USB drive or TF card
Check if the music files are not damaged. Damaged music files may
have noise or even cannot be played
Sound turns bad, or volume
It means power is getting low. Please recharge battery as soon as
decreases, or playing
possible.
discontinuity
Make sure to use correct adaptor and suggest not to play while
Cannot Charge
charging.
Old version USB drive is working in 5V (usually below 1GB), but the
Cannot Play USB Drive
player only supports new version USB drive (working in 3.7V-4.2V).
P-4