Jensen A600HLX, A400HLX warranty Troubleshooting

Models: A600HLX A400HLX

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A400HLX, A600HLX

 

®

 

Troubleshooting

 

 

 

 

 

Problem

Possible Cause

Corrective Action

 

 

 

 

Amplifier does not operate

No power to +12V terminal

Repair wire or connections.

(power LED not on) when

 

 

 

 

 

 

 

Check connections to radio with test light.

vehicle and radio are on

No power to remote wire with

 

radio on

 

 

 

 

 

 

Fuse blown

Check fuse.

 

 

 

 

Radio volume needs to be

Input level control adjusted too low

Adjust input level control.

turned up too high for amp

 

 

 

 

to work

 

 

 

 

Radio volume is too sensitive

Input level control adjusted too high

Adjust input level control to lower setting.

 

 

 

 

Sound from only one speaker

Defective speaker

Replace speaker.

 

 

 

 

 

Poor connections to speaker (wire)

Check connections.

 

 

 

 

 

RCA input cable defective

Replace cable.

 

 

 

 

 

Input level control adjusted too high

Adjust input level control.

 

 

 

 

Sound distorted

Speaker wires shorting together

Separate speaker wires and insulate.

 

 

 

 

Blows fuses

Power wires hooked up incorrectly

Check power wire connections.

 

 

 

 

 

Speakers blown or defective

Check speakers.

 

 

 

 

Engine noise

Improper ground connections

Reroute RCA away from main power wires.

(Ignition noise/static or

Ground loop(s)

 

 

 

 

Alternator whine)

 

 

 

Reroute RCA cable.

 

 

 

 

 

 

 

 

 

Make sure amp is grounded to a clean, solid part of

 

 

 

 

the chassis/frame.

 

 

 

 

Protect light comes on/

Amp is in thermal protection

Let amp cool down before attempting to turn back on

amplifier shuts down

 

 

 

(some installations may require a fan to keep the amp

 

 

 

 

cool, especially if you are driving subwoofers with the

 

 

 

 

amp).

 

 

 

 

 

Faulty speaker connection and/or

Check speakers and/or crossovers for loose or bad

 

crossover

connections.

 

 

 

 

 

Low battery voltage

Make sure you are getting between 10.8-15.6 volts to the

 

 

 

 

amplifier with a digital multimeter measured at the amplifier.

 

 

 

 

 

Speaker impedance less than 2 ohms

If you are using 4 ohm speakers you cannot have more

 

per channel

than two speakers wired in parallel per channel.

 

 

 

 

Amp will not operate into 2 ohms bridged.

 

 

 

 

No output on channels

Speaker wires not connected to

Refer to pages 6 – 9 for proper installation.

 

speakers properly

 

 

 

 

 

Input hooked up incorrectly

 

 

 

 

 

 

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1/9/02, 4:13 PM

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Jensen A600HLX, A400HLX warranty Troubleshooting