Protection Circuitry, Troubleshooting & Service - Soundstream AirBass User Manual

Your DaVinci amplifier is protected against both overheating and short circuits by means of the
following circuits:
Main power supply fuses (4 x 30 amps)
l
Smart Power Supply Thermal RollbackTM activating at 85oC.
l
A fail-safe thermal protection circuit activating at 95°C.
l
Your amplifier also incorporates an innovative Fault Diagnosis System that identifies a blown power
supply fuse.
NOTE: If you experience blown main power supply fuse, DO NOT increase value beyond the factory
supplied fuses! Doing so will void your warranty and may damage your amplifier.
PROBLEM
No sound and LED's are not lit
Fault LED is lit
Repeatedly blown amp fuse, frequent
activation of Smart Power Supply Circuit
No sound from channels with input
No sound from sub channel & AIRBASS is not
installed.
The DaVinci is protected by a limited warranty. Please read the enclosed warranty card.
PROTECTION CIRCUITRY
l
l
l
l
l
l
l
l
22
CAUSE
no remote turn-on signal
blown fuse near battery
amp power supply fuse is blown or missing
speaker or leads may be shorted
verify adequate amplifier ventilation
check input settings on top of amplifier-verify
remote or local source inputs.
Check input switch on BLT4.
remote or local source inputs
Verify that the AIRBASS switch is not engaged.