Bedienungsanleitung JL Audio 1 (Seite 8 von 13) (Englisch)

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14 | JL Audio - HD1200/1 Owner’s Manual

4) Alternating Red and Green: lights to indicate

that the amplifier is experiencing a fault

that may require service of the amplifier, its

wiring or the vehicle’s charging system. Audio

is muted when this fault occurs. The most

likely cause of this fault is a low supply voltage

condition. If battery voltage drops below 8.5

volts at any point, the amplifier (except for the

“Status” LED) will shut itself off to protect itself

and the vehicle’s charging system. If the voltage

drops below 6 volts, the “Status” LED will also

turn off.

The amplifier will turn back on automatically

when voltage climbs back above 9 volts. This

shut-down and turn-on behavior may happen

in a rapid cycle when bass-heavy program

material causes a weak charging system to

momentarily dip too low. If this is happening

in your system, have your charging system

inspected to make sure it is working properly.

If no problem is found with the supply

voltage to the amplifier and you are

still seeing alternating Red and Green

on the “Status” LED, it is likely that the

amplifier is suffering from an internal

fault that requires factory service.

For more information on troubleshooting this

amplifier, refer to Appendix D (pages 20, 21).

SERVICING YOUR JL AUDIO AMPLIFIER

If your amplifier fails or malfunctions, please

return it to your authorized JL Audio dealer so

that it may be sent in to JL Audio for service.

There are no user serviceable parts or fuses inside

the amplifier. The unique nature of the circuitry

in the JL Audio amplifiers requires specifically

trained service personnel. Do not attempt

to service the amplifier yourself or through

unauthorized repair facilities. This will not only

void the warranty, but may result in the creation

of more problems within the amplifier.

If you have any questions about the installation or

setup of the amplifier not covered in this manual,

please contact your dealer or technical support.

JL Audio Technical Support:

(954) 443-1100

9:00 AM – 5:30 PM (Eastern Time Zone)

Monday - Friday

Speaker loads below 1.5Ω nominal are not

recommended and may cause the amplifier

output to distort excessively.

Speaker Connector Plugs

To connect the speaker wires to the amplifier,

unplug the speaker connector plug from the

amplifier chassis (pull back firmly) and back out

the set screws on the connector plug, using the

supplied 2.5 mm hex wrench. Strip 3/8 inch (10

mm) of insulation from the end of each wire and

insert the bare wire into the receptacle on the

speaker connector plug, seating it firmly so that

no bare wire is exposed. While holding each wire

in place, tighten each set screw firmly, taking care

not to strip the head of the screw.

You will notice that there are two sets of “+” and

“–” connections on the plug. This is to facilitate

multiple speaker wiring to the HD1200/1’s mono

output. The two positive and two negative

connections are connected in parallel inside the

amplifier. Connecting two speakers, each to

one set of positive and negative terminals, will

result in a parallel speaker connection. If only

connecting one pair of speaker wires, it is not

necessary to use both sets of connections.

Do not chassis ground any speakers connected

to this or any other JL Audio amplifier. Doing

so will cause the amplifier to go into protection

and mute the output.

“STATUS” LED / PROTECTION CIRCUITRY

There is a single multi-color LED on the

control panel of the amplifier to indicate the

amplifier’s operating status. This LED’s behavior

is as follows:

1) Flashing Green: amplifier is powering up,

audio output is muted.

2) Constant Green: amplifier is on and

functioning normally, audio output is active.

3) Constant Red: lights to indicate that the

amplifier has exceeded its safe operating

temperature, putting the amplifier into a

self-protection mode, which reduces the

peak power output of the amplifier. The red

light will turn green and the amplifier will

return to full-power operating mode when its

temperature returns to a safe level.

3) Constant Amber (yellow): lights to indicate

that the impedance of the speaker load

connected to the amplifier is lower than its

optimum load impedance range. When this

light is on, a protection circuit engages and

reduces the power output of the amplifier.

The amber indicator will also light when a

short-circuit is detected in the speaker wiring

(this can be a short between the positive and

negative speaker wires or between either

speaker wire and the vehicle chassis).

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