The DM-24’s firmware can be upgraded either by
replacing the internal EPROM chips, or by a MIDI
transfer.
EPROMs must be installed by a TASCAM service
center, while MIDI upgrades can safely be performed
by the end user. If you have a good understanding of
Microsoft Windows or Mac OS and a good under-standing
of MIDI, you should have no problem with
this proceedure. If these subjects are new to you,
TASCAM highly recommends that you take your
DM-24 to a TASCAM service center to be upgraded.
If these procedures are not followed accurately there
is a good chance that your DM-24 will not boot up
and will have to be taken to a service center for
repair.
Upgrading the DM-24 via MIDI consists of playing
seven standard MIDI files into the DM-24 from a
capable MIDI device. TASCAM recommends ONLY
the two ways described below (one for Windows, one
for Mac OS) of upgrading via MIDI.

Microsoft Windows requirements
• Use a standard PC running Windows 98SE, ME,
2000 or XP.
• You must use a PC with at least an 800 MHz pro-cessor
and 128 MB of RAM.
• The ONLY Windows application that TASCAM
supports for upgrading the DM-24 via MIDI is
Microsoft’s Windows Media Player version 7.1.
The Windows Media Player can be downloaded
from the Microsoft website: www.microsoft.com software/playerv7.asp

Mac OS requirements
• Use an Apple Macintosh computer running Mac
OS 8.6 or higher (OS X is not supported).
• The ONLY Mac application TASCAM supports for
upgrading the DM-24 via MIDI is MIDIGraphy
version 1.4.3. This application is shareware and can
be downloaded from the TONTATA website.
http://member.nifty.ne.jp/mmaeda/e/macos.html#mg

Downloading the files
The standard MIDI files needed for upgrading the
DM-24 can be downloaded from the DM-24 profile
page of the TASCAM website. These files are zipped
(compressed) and must be expanded before use. www.tascam.com index.php
1 Create a new folder on your desktop called
DM updates.
2 Download the standard MIDI files compris-ing
the update and extract them into this
folder.

1 With the power to the DM-24 turned OFF,
hold down the 2nd F. key (to the far left of the
board), the HIGH key (just above, in the EQ
section) and the – key (just to the right in the
LIBRARY section).
2 While holding down these three keys, turn
the power ON.
3 The DM-24 boots into diagnostic mode. As
soon as you see DIAGNOSTIC MODE on the
display you may release the 2nd F., HIGH and
– keys.
4 Use the ¶ cursor key to move the cursor to
SRAM INIT and press ENTER.
NOTE
This is NOT the same as SRAM INIT for factory TEST. You
should not select this latter option.
5 Press ENTER again to confirm when
prompted. A check mark appears in the box
next to SRAM INIT on the display.
6 Use the ¶ cursor key to move the cursor to
FLASH INFORMATION CLEAR, and press ENTER.
7 Press ENTER again to confirm when
prompted. A check mark appears in the box
next to FLASH INFORMATION CLEAR on the dis-play.
8 Use the ¶ cursor key to move the cursor to
EXIT, and press ENTER. This resets the DM-24
back to the original factory settings and the
DM-24 reboots.