Lab.gruppen D Series 80:4T/Ta - Manual (Page 22)

14. Faults and warnings
22
D SERIES Tesira Quick Start Guide rev 1.2.0
Category/Type Name On screen text Description Action
Fault
Mains voltage above
270 V
MAINS > 270 V
Power supply detects mains voltage
above operation voltage. Protective shut
down, auto restart attempt
Check mains distribution/
connection
Fault
Mains voltage below
65 V
MAINS < 65 V
Power supply detects mains voltage
below operation voltage. Protective shut
down, auto restart attempt
Check mains distribution/
connection
Fault Power supply fault PSU FAULT Internal power supply fault
Check mains distribution/
connection.Restart device;
if not cleared it needs
servicing
Fault Check mains CHECK MAINS
Power supply detects unstable mains
supply. Protective shut down,
auto restart attempt
Check mains distribution/
connection
Fault Power supply power protect PSU POWER PROT
Too high output power for too low mains
supply voltage. Protective shut down,
auto restart attempt.
Improve mains supply
voltage or reduce output
power
LOAD
Warning Under speaker count UNDER SPKR CNT Both LoadPilot tones above thresholds Check load or calibration
Warning Speaker short SPKR SHORT Both LoadPilot tones below thresholds Check load or calibration
Warning Speaker damaged SPKR DAMAGED
One LoadPilot tone is above or
below threshold
Check load or calibration
Fault No load NO LOAD
At least one LoadPilot tone above
measurable area of significantly
above thresholds
Check load or calibration
Fault Short circuit SHORT CIRCUIT
LoadPilot or full frequency analysis
below short threshold or
hardware short protection
Check load or calibration
AMP
Warning Temp warning amplifier channel TEMP WARN
Amplifier channel is
approaching critical
Improve cooling or reduce
output power to avoid
temperature becoming
critical
Fault Temp Fault amplifier channel TEMP FAULT
Amplifier channel has reached critical
temperature and has shut off for
protective reasons
Automatically unmutes
when cooled down
Fault Service channel SERVICE CH. Amplifier channel is damaged
Restart device; if not
cleared needs servicing
SIGNAL
Clip Current average limiter CAL ACTIVE
Average current on amplifier above
safe operating level
Reduce output current
to avoid limiting
Clip Current clip CURRENT CLIP
Amplifier channel reached
current limit
Reduce output power
to avoid limiting
Fault Very high frequency fault VHF FAULT Amplifier channel protection Check input signal
Clip Voltage clip VOLTAGE CLIP Amplifier reached voltage limit
Reduce output power
to avoid limiting