CFSound-II Digital Audio System
Copyright©1992-2006 by ACS, Sarasota, Florida
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ALL RIGHTS RESERVED
Card Requirements
The Compact FLASH II Digital Audio System was designed to use only Compact FLASH Cards
(CF Cards) that support the True IDE ATA mode at 5 volt operation. Tested cards include San Disk,
Kingston, Techworks, Dane-Elec, Memorex and Hitachi. The San Disk card was tested, since they
manufacture 90% of the retail cards on the market. Compact FLASH Cards are available in many local
electronics or camera stores or can be ordered directly from ACS.
LEXAR Media Compact Flash cards are not 100% compatible in True IDE mode and as such
are NOT COMPATIBLE with the Compact Flash II Digital Audio System.
By default, Windows XP will format any Compact Flash card of 64MB or more with FAT32 format.
The ACS Compact FLASH II Digital Audio System uses the FAT (FAT16) format and can not operate
with a FAT32 formatted card. You must select FAT file system to format your Compact Flash card in a
Windows XP PC, not FAT32.
Diagnostic LED Codes (Red & Green LEDs)
Green LED
Flashes twice a second while scanning or loading CF Card files.
Steady on when loaded, ready or playing.
Red LED Error Flashes
Once every six seconds - problem w/ATA interface, non-compatible CF card, bad CF card.
Twice every six seconds - error opening file for that input, incorrect filename, file does not exist.
Three times every six seconds - error when reading file, file corrupted, unsupported file type.
Four times every six seconds - no valid *.WAV files of a compatible format found on the CF Card.
Five times every six seconds no valid FAT file system found on the CF Card.
Six times every six seconds error seeking when resuming sound.
Power Requirements
The idle current of a CFSound II unit with an 8MB Kingston CF card installed is ~170mA @ 12VDC
input.
With a background sound playing at a moderate level, the current consumption averages ~250mA @
12VDC.
