3.6. Accessories
ACR M8:
Forged eyebolt rigging for overhead installations.
SP/CR:
D:35mm/L:80cm Distance rod with M20 Thread.
SP/SX:
D:35mm/L:1.8m adjustable aluminium Tripod
stand.
COVER/FUNDA:
Protective Nylon cover.
FC-12A:
Flightcase for 2x TOPS12A units
4. TROUBLESHOOTING
No power
•
Make sure that the cabinet is plug in.
•
The Fuse is blown. Replace the fuse on fuse
holder with one of the same type. If it blows
again, take the unit to a service centre.
No sound
•
Check that the mixer or sound source is
sending signal to the unit.
•
Make sure that the VOLUME potentiometer is
well-positioned.
•
Check that the cable from the sound source to
the units is connected correctly. Replace the
cable if defective.
•
Make sure the output volume (gain) control on
the mixing console is turned up sufficiently to
drive the inputs of the speakers.
•
Make sure the mixer does not have a Mute on.
Distorted sound
•
The system is overloaded and has reached
maximum power. Turn down the mixer's output
or the channel's gain.
Poor bass performance
•
Check the polarity of the connections between
the mixer and the cabinets. You may have the
positive and negative connections reversed at
one end of the cable, causing a loudspeaker to
be out-of-phase.
Noise and Hum
•
Make sure all connections to the active unit are
in good conditions.
•
Avoid the signal cables to be routed near AC
cables, power transformers, or EMI-inducing
devices.
•
Check if there is any light dimmer on the same
AC circuit as the cabinet. Connect the sound
system to a different phase than the lights.
TOP.S 12A
2009
7
