Technical Support - ALLEN & HEATH GL4800 User Manual

Technical Support

Should you have any queries about the GL4800 console automation
system please quote the console model, serial number and software version
number in any communication with Allen & Heath or appointed service agent.
The system has been designed and tested to be reliable under the harsh
conditions typical of live sound 'on the road'.
encountered check first that external equipment is correctly connected and
functional (or disconnected to test the console itself), that the equipment has
been correctly set up, and that the mains power is correct for the console
power unit. Error detection systems have been built in to assist with problem
investigation.
Power Up and Power Down
Console DC Power Indicators
Software Version Number
SHIFT
EDIT
GROUP
PREVIEW
Soft Reset
SCENE
GROUPS
46
The console settings are remembered when power is removed
from the console. A power down circuit detects falling voltage
and writes the settings to non-volatile memory. On power up
these settings are restored. Mains power fluctuations ('brown-
outs') are detected with error code readout.
The console power unit converts mains voltage to the DC
supply rails required by the console.
associated indicator LED on the front panel. If a power rail fault
is suspected check that these LEDs are correctly illuminated.
Note that the optional RPSD2 dual power supply monitor
includes further power supply status monitoring.
Press SHIFT + PREVIEW GROUP
The software version number is shown on the snapshot
display. For example, 1.23 is version V1.23
Release the keys to return to normal display.
Should the system lock up and fail to clear itself first press the
underpanel RESET button above the rear panel MIDI sockets.
This restarts the processor as if the console was powered off
and then on, except that the console may not reset to the last
active mute settings.
Should a problem be
Each rail has an
GL4800
48V
+V
-V
RESET
IN
MIDI
THRU
OUT
User Guide