XTA apa-4e8, Operator'S Manual

Page: 39 / 76

APA-4E8 Operator’s Manual Page 39
ta x
Understanding Your APA
Understanding Your APA Understanding Your APA
Understanding Your APA
Memories, Presets and File Structures
Internal SD Card
Each APA is fitted with an internal 4GB microSD card. This card is NOT user swappable or
accessible. Changing or modifying the card outside the amplifier may result in corruption of
settings, or damage to speaker systems and the amplifier itself. Attempting to access the
card will expose the user to potentially lethal voltages and will also invalidate the warranty.
It is, however, useful to understand the file structure used on the card as it is relevant to
preparing USB Flash drives when copying presets to/from your amplifier, or upgrading
firmware.
The SD card is partitioned with these four user accessible folders:
/firmware — firmware updates (.bin format should be in this folder before syncing)
/presets — unit presets (.preset format should be in this folder to sync presets)
/wav — wav file for emergency voice evac (single file title “evac.wav” in this folder)
/logs — performance and error logs (for diagnostic use only)
USB Flash Drives: Firmware Upgrades and Presets/Memories
Your amplifier can use a USB flash drive to update firmware, upload or download presets, and
upload evacuation messages. The front panel USB socket is a MICRO USB male socket.
An adapter (supplied) is required to connect a USB flash drive. Should you lose the adapter,
you will need a USB MICRO type ‘A’ plug to USB type ‘A’ socket.
Should this prove difficult to obtain, the more common USB MICRO type ‘B’ plug to USB type
‘A’ socket will work, but bear in mind this may not be compatible in future software releases.
Shown is a USB MICRO type ‘B’ plug to USB type ‘A’ socket:
The USB flash drive MUST be formatted as FAT32
(so not as NTFS) and whilst it will not matter if it
contains other data, it must contain the folder
structure as described above for the SD card,
namely:
From the root folder:
/firmware
/presets
/wav
/logs
The capacity of the drive must be at least 64MB.