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Definition of key functions
1. “PLAY”: PLAY/ PAUSE, hereafter referred to as
“Play key”.
2. “Stop”: Stop/Power off/Power on/ A/B
3. “Mode”: to select the entry and to enter the menu,
hereafter referred to as “mode key”.
4. “VOL+”: volume increase, fast increase.
5. “VOL–”: volume decrease, fast decrease.
6. “Forward”: next entry, fast forward.
7. “Back”: last entry, fast rewind.
8. “USB”: USB jack.
9. “Earphone jack”: standard earphone jack.
Definition of key operation
The key operation includes short press, long press,
press and hold, and press. The paragraphs below
refer to short press unless otherwise stated.
Short press: Press the key for one time and the key
comes into effect right away.