Special Indications; Thermal Protection - Optimus DA-500D4 Manual De Instalación Y Funcionamiento

DA-500D4
Class-D amplifier

5.6. Special Indications

POWER LED is activated if its corresponding cannel is properly powered either at 230/110 Vac or
24 Vdc.
SIG LED is activated if the audio output level reaches 10 V.
CLIP LED is activated if the audio level exceeds the maximum level saturating the signal.
PROT LED will light if protection is activated. Please, turn off the equipment and check speaker
lines before turning it on again.

5.7. Thermal Protection

Temperature control circuit controls working status of the fan. Fan works at the lowest speed when
temperature reaches 45 and increases its speed to reach the maximum one at 70º.
DA-500D4 Version 2.0 Page 7 of 9