Trouble Shooting and Maintenance
CineNova Grande Power Amplifiers
Troubleshooting
Humming noise from speakers.
Often humming noise is emanating from equipment that have
their ground prong broken.
a)
c) If above steps do not isolate your problem star-ground all
components except amplifier from their chassis to the
processor.
With the amplifier OFF, unplug all RCAs connected to the
amp.
b) Turn on amp and listen to speakers.
If buzz has changed or reduced in level, then the problem is
coming to the amp from another source. The rest of the hum
you hear is normal and related to the fact that the RCAs are
open ended and not connected to any thing.
:
Front LEDs are ON all the time
It is normal when running the amplifier to full power that the LEDs
flicker. If you see that the LEDs are on constantly without
flickering (solid orange) it means that the amplifier is clipping.
Reduce volume level to prevent damage to the unit.
Turn amplifier ON and circuit breaker shuts down
This can either be a short in amp or poor circuit breaker in the
house. Plug amplifier into another outlet on a different circuit
breaker with nothing connected. If the amp turns on then the
problem is with your home circuit breaker. If the amplifier still does
not power up, please call Earthquake to consult with a technician.
MAINTENANCE
The following routine maintenance should be
performed on a periodic basis:
• Clean the exterior surfaces of the unit with a
soft, dry, lint-free cloth.
• Do not use alcohol, benzene, acetone-based
cleaners, or strong commercial cleaners.
• Do not use a cloth made with steel wool or
metal polish.
• If the unit is exposed to a dusty environment, a
low-pressure blower may be used to remove
dust from its interior & exterior.
12
Note:
Visit www.earthquakesound.com for answers to
frequently asked questions and additional
troubleshooting information.
If you are still stuck...
1. Contact an authorized Earthquake Dealer.
2. Contact Earthquake Sound Customer Service.
