DSPPA Alfatron ALF-250W-UB Benutzerhandbuch - Seite 5
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1. Display Screen
2. USB Interface
Insert a USB to provide programs to built-in MP3.
3. Play/Pause
In USB and Bluetooth mode, press this button to
pause / play.
In FM mode, press this button to search the radio
automatically.
4. Last Song/ (Last Radio in FM)
In USB/Bluetooth mode, press this button to
switch to the "Last Song".
In FM mode, press this button to switch to the
"Last Radio".
In FM/Bluetooth/USB mode, long press this
button to turn down the volume.
5. Next Song/ (Next Radio in FM)
In USB/Bluetooth mode, press this button to
switch to the "Next Song".
In FM mode, press this button to switch to the
"Next Radio".
In FM/Bluetooth/USB mode, long press this
button to turn up the volume.
6. Mode Button
It can switch to Bluetooth mode (BLUE), USB
mode (USB), line input mode (AUX) and FM
mode (FM).
7. MIC1 IN
This button has priority function. (Level with EMC
IN on the rear panel)
8. MIC1 VOL.
Adjust the volume of MIC1, turn clockwise to turn
up the volume, and turn counterclockwise to turn
down the volume.
9. MIC2/AUX2 VOL.
Adjust the volume of MIC2/AUX2, turn clockwise
to turn up the volume, and turn counterclockwise
to turn down the volume.
10. AUX1 VOL.
Adjust the volume of AUX1, turn clockwise to turn
up the volume, and turn counterclockwise to turn
down the volume.
11. BASS VOL.
Take the central position as the benchmark, turn
counterclockwise to turn down the bass, and turn
clockwise to turn up the bass.
12. TREBLE VOL.
Take the central position as the benchmark, turn
counterclockwise to turn down the treble, and turn
clockwise to turn up the treble.
13. MASTER VOL.
Adjust the level of all signals (except for EMC IN
on the rear panel), turn clockwise to turn up the
volume, and turn counterclockwise to turn down
the volume.
14. POWER
Press "ON" to turn on the power, while press
"OFF" to turn off the power.
15. LEVEL LED
Display the audio output level.
Guangzhou DSPPA Audio Co., Ltd
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