Specifications

MIDI Control Surfaces Guide66
Troubleshooting and
Diagnostics
HUI provides a built-in, comprehensive diag-
nostic test upon startup. You can confirm that
your HUI is fully functional by running this test.
Startup Test
As HUI initializes during startup, it goes through
a series of diagnostics. Once these internal tests
are complete, HUI displays a message and its
current firmware version.
In addition, HUI has a series of built-in tests de-
signed to let you confirm that it is working
properly. HUI, Pro Tools, your MIDI interface
and setup, AMS (Mac OS X only) or OMS (Mac
OS 9 only), and your computer all work together
to create a unified system. These diagnostics al-
low you to confirm that HUI is operating prop-
erly.
To place HUI in diagnostic mode:
1 Immediately after turning on the power
switch, press the OPTION/ALL and SHIFT/ADD
switches.
2 In diagnostic mode, all LEDs on the HUI con-
trol panel should be lit. Take notice of any LEDs
that fail to illuminate.
3 Rotate the MASTER VOLUME pot in the Ana-
log Monitoring section to control the speed of
the channel fader travel. Make sure that the
channel faders are responding to servo control.
4 Press Footswitch #2 to exit the test routine. If
you do not have a footswitch connected, power
down HUI, wait a few moments, and then
power on HUI.
5 Once the initial startup routine is successfully
completed, HUI will display “Welcome to HUI”
in its display.
With the comprehensive diagnostics included
in your HUI, you can determine definitively
whether or not HUI (on its own) is working
properly.
◆ Contact Mackie Designs if your problem lies
with your HUI hardware.
◆ Contact Digidesign if you have problems with
Pro Tools software or MIDI services.
When calling Mackie or Digidesign Customer
Support, be sure to indicate that you are using a
HUI with Pro Tools. Provide the technician with
a report of your problems and results of the di-
agnostic tests.
MIDI Monitor Mode
MIDI Monitor mode displays the last several
MIDI messages transmitted or received by HUI.
The data appears in hexadecimal code on its dis-
play. To gain access to MIDI Monitor mode,
press the F4 switch while pressing the OP-
TION/ALL switch. To leave MIDI monitor mode,
press the OPTION/ALL switch and press the F4
switch again.