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BASIC SETUP & OPERATION
ISP SERIES
INSTALLATION AND OPERATION MANUAL
FAULT FINDING
STATUS INDICATOR
If the blue STATUS LED is flashing instead of remaining on then a specific system state is being displayed.
See the table below on the meaning and of the system state.
The Status LED should indicate the following:
LED
MEANING
INDICATION
Blue On
Normal Operation
LED solid on. Indicates that device is powered and that no faults exist.
Blue Slow Flash
Standby Mode
Flash LED: On for 50ms, Off for 4s
Blue Flash
Error Mode
LED Off for 2s followed by a flash count of the error code, On for 300ms, Off for 300ms.
Multiple errors will be indicated in consecutive error sequences. Refer to table below for
list of error codes.
The list of error codes is:
ERROR CODE
STATUS LED ERROR FLASH COUNT
RESOLUTION
Configuration failure
1
Perform a factory default
Nor Flash image failure
2
Nor Flash read/write/erase failure
3
Return to authorised service agent
Power Amplifier initialisation failure
4
DSP failure
5
Bootloader failure
6
File System failure
7
Expansion initialisation failure
8
ADC initialisation failure
9
PROTECT INDICATOR
The following table indicates the meaning of each protection mode
LED
MEANING
RESOLUTION
Yellow flashing
Amplifier temperature warm
None required
Yellow on
Amplifier temperature hot
None required
Red flashing
Amplifier over temperature*
The amplifier has shutdown. It will automatically restart once it has
cooled down
Red on
Amplifier protect
Check the speakers connected to the amplifier are correctly wired.
Power cycle the unit and retry.
* In the advent of a thermal overload, the internal operating temperature of the amplifier has exceeded a safe level of operation. The
fan will continue to run and once the amplifier has cooled it will return to normal operation.
SIGNAL INDICATOR
The following table indicates the meaning of each signal mode
LED
MEANING
RESOLUTION
Green on
Audio signal present
None required
Green off
No audio signal present
Increase the input audio level
Green flashing
Amplifier channel is set to mute
Unmute the channel using the Web application
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