www.Lanzar.com
Troubleshooting
PROTECTION CIRCUITRY
The built-in protection circuitry in the
Lanzar Vector Series amplifiers
will disable the amplifier if it senses an input
overload, a speaker short circuit, or extreme temperature conditions.
When the protection circuit is activated by any of these conditions the Protection LED will be illuminated.
lf this occurs carefully inspect the system to determine the source of the problem.
•
lf the shutdown was a result of a thermal overload condition, allow the amplifier to cool down before attempting to
restart it.
•
lf the shutdown was a result of an input overload, or speaker short circuit, be sure to correct the condition before
restarting. The amplif ier can be restarted by turning the remote power
OFF
and then
ON
again.
No Output
Confirm that all terminal strip connections are secure and tight. Check both in-line and built-in fuses. Both the +12V
and the remote terminals must have +12V referenced to chassis ground. Confirm that the audio signal source (car radio,
equalizer, etc.) is connected and is supplying output signal. To check if the amp is supplying signal, unplug the cables
from the signal source (but leave them plugged into the amp.) Briefly tap the center pin of each of the disconnected
RCA plugs with your finger. This should produce a noise (feedback) in your speakers.
Only once channel works
Confirm that all terminal strip connections are secure and tight. Check the balance control on the head unit (or other
source) to verify that it is set to its midpoint. If you are using the Low Level RCA input, reverse the input plugs at the
amplifier (i.e., switch the L with the R). If the channels which is silent switches to the other side, the problem is either in
the head unit/other source or the connecting cables.
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