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Redback® Proudly Made In Australia 11
Redback® A 4427
8 Channel Public Address Mixer
Fig 8
This MP3 file needs to be deleted and replaced by the MP3 file you want to play when you activate the Alert mode. The
MP3 file name is not important. But it is important that there is only one MP3 file in the Alert folder.
Check the properties of the MP3 file.
NOTE the new MP3 file cannot be “Read only”.
To check this, right click on the MP3 file and scroll down and select
Properties, you will get a window that looks like figure 9.
Make sure the “Read Only” box has no tick in it.
The new MP3 is now installed on the card. Repeat these steps for the
other MP3 folders if you need to.
The card can be removed from the PC following windows safe card
removal procedures. Make sure the A 4427 is OFF and insert the SD card
into the slot in the rear; it will click when fully inserted. The A 4427 is
ready to use.
Fig 9
10.0 TROUBLE SHOOTING
If the REDBACK A 4427 mixer fails to deliver the rated performance, check the following:
No Power, No Lights
The standby switch is used to turn the unit on. Make sure this switch has been pressed.
Make sure mains power switch is on at the wall.
Check the supplied plugpack is connected correctly.
MP3 files not playing
The files must be MP3 format. Not wav, AAC or other.
Check Micro SD card is inserted correctly.
DIP switch changes not effective
Turn the unit OFF before changing DIP switch settings. Settings become effective after power is returned.
