USER MANUAL
5
Control Panel Features
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9. Power LED – If you have connected your battery power, vehicle
ground, and turn-on lead (or GTO signal sensing) correctly, then
this light should be green to indicate the power is ON. An internal
blue glow will also emanate from the heatsink area to indicate
that the power is ON. There are times when this blue glow will
ash, such as during power-up, and when the protection circuits
have detected a problem.
10. Protection LED – The LC-1.800 amplier has built in diagnostic
codes to tell you exactly what is going wrong should the amplier
detect a problem. (See specs page for a list of diagnostic codes.)
If the protection LED should come on, read the red codes quickly
before turning o the system and investigating. Shorts, like
crushed-velvet hot pants, are not a good thing. Note that the blue
power codes mentioned in the table are for the internal blue glow
from behind the heatsink area, and not the power LED which is
green. You might not notice the subtle blue glow at rst, unless
you are in the dark or the shade.
11. GTO Signal Sense – In the ON position, the LC-1.800 amplier will
turn on gracefully when it detects an incoming audio signal, and
it will turn o after a period of time when the audio signal fades
away to silence. In some situations, factory installed audio systems
may turn on or “wake up” due to convenience features like door
chimes, alarms, and cell phone signals that trigger the source unit
in the vehicle to come on. To prevent these from turning your
audio system on unexpectedly, you can bypass the GTO circuit by
moving the GTO switch to the OFF position and use a switched
12-volt signal connected to the Remote In terminal instead.
12. AccuBASS®
Enables/Disable – Turns the AccuBASS® circuit on or o . The
renowned AccuBASS® will work wonders on the lower bass of the
speaker outputs.
AccuBASS® Threshold – Selects the level at which the AccuBASS®
will begin to work.
AccuBASS® Level – Adjusts the level of the AccuBASS®.