Maintronic DPA4.150 Manuale di servizio - Pagina 14

Sfoglia online o scarica il pdf Manuale di servizio per Amplificatore Maintronic DPA4.150. Maintronic DPA4.150 16. Digital power amplifier

trouble shooting
14
Fault LED glows:
The amplifier is to hot (heatsink is over 80°) or
a short circuit is present at the loudspeaker outputs
LED should turned off after disconnecting the loudspeaker
Humming noise:
1: Check Input Ground connectors
2: throught the PE conductor connections of different devices
a ground loop can ocure
Signal is distorted:
1. turn down the level input gain
2. reduce and check input signal