Extron Electronics DMP 44 LC User Guide - Manual (Page 17)

Firmware Updates
The firmware of the DMP 44 LC can be updated through USB or RS-232 connection. The
user can obtain new firmware from the Extron website. After obtaining the new firmware,
upload it to the unit using the
Firmware Loader option in the DSP Configurator program
(see the “ Software Control ” section), or using the Extron standalone Firmware Loader
application available on the included disc or at www.extron.com .
Reset Actuator and LED
A recessed button on the rear panel (g) initiates two reset modes. The green front panel
LED (b) and rear panel (b) LED blink to indicate the reset modes as described in the
following section. See the previous front and rear panel diagrams.
Hardware Reset Modes
With power on, when the reset button is held down the front and rear panel LEDs pulse
(blink) every three seconds and put the unit in a different reset mode. The DMP 44 LC
defaults back to the base firmware that shipped with the unit from the factory, allowing
the user to recover a unit that has incorrect code or updated firmware running.
NOTE: Control software may not function correctly if using an earlier firmware
version.
MODE 1 — Firmware reset: Disconnect power to the DMP 44 LC. Press and hold the
reset button while applying power to return the firmware to the version shipped with the
unit from the factory. This allows recovering a unit with incorrect or corrupt firmware. All
user files and settings are maintained.
MODE 5 — Factory default reset: With power on, press and hold the reset button until
the reset LED blinks 3 times (~9 seconds). Each flash will last for 0.25 seconds. Release,
then momentarily (<1 second) press the reset button to return the DMP 44 LC to factory
default conditions. If the second momentary press does not occur within 1 second, the
reset is exited.
The default (reset) state of the device is:
• Inputs 1 to 4 are mixed to corresponding outputs 1 to 4 (all other mix-points are set to
0 dB gain and muted).
• All inputs are active (unmuted, 0 dB gain).
• All outputs are active (unmuted, 100% volume).
• No inserted or active DSP processing.
• Group master memory is clear (empty).
• No presets.
• Digital input ports are not active and not configured.
DMP 44 LC • Operation 11