Radio Shack XL-400 owner manual Troubleshooting, Symptom Possible Cause Suggestion

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ˆTroubleshooting

We do not expect you to have any problems with your RadioShack High Power 4/3/2-Channel Bridgeable Amplifier, but if you do have a problem, this chart might help. If not, take the ampli- fier to your local RadioShack store for assistance.

Symptom

Possible Cause

Suggestion

 

 

 

 

 

 

No power the amplifier’s

Power problem.

Check the amplifier’s and auto

POWER indicator does not light

 

sound system’s fuses and

after the vehicle’s auto sound

 

replace them if necessary (see

system is turned on

 

“Replacing a Fuse” “Replacing

 

 

a Fuse” on Page 21).

 

 

 

 

Vehicle’s ignition not turned on.

Start the vehicle.

 

 

 

 

Amplifier not connected to auto

Check all connections.

 

sound system/vehicle correctly.

 

 

 

 

No sound

Auto sound system not turned

Turn the auto sound system on

 

on or volume set to minimum.

or adjust its volume.

 

 

 

 

Amplifier’s LEVEL (MIN/MAX)

Adjust LEVEL (MIN/MAX).

 

controls set to minimum.

 

 

 

 

 

Amplifier not connected to auto

Check all connections.

 

sound system/vehicle correctly.

 

 

 

 

 

The amplifier might have shut

Turn your auto sound system off

 

down.

and let the amplifier cool. Make

 

 

sure the amplifier is properly

 

 

ventilated. Then turn your auto

 

 

sound system back on. The

 

 

amplifier turns itself back on

 

 

when it is cooled.

 

 

 

 

 

The amplifier detected an input

 

 

overload. Reduce the auto

 

 

sound system’s volume.

 

 

 

 

Power problem.

Check the amplifier’s and auto

 

 

sound system’s fuses and

 

 

replace them if necessary (see

 

 

“Replacing a Fuse” on

 

 

Page 21).

 

 

 

Distorted sound

The amplifier might be receiving

Reduce your auto sound sys-

 

too much input power from your

tem’s output power (if possi-

 

auto sound system.

ble), or reduce the auto sound

 

 

system’s volume.

 

 

 

 

An output channel might have

Take the amplifier to your local

 

shorted.

RadioShack store.

 

 

 

20

Troubleshooting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents XL-400 High Power 2-Channel Bridgeable Amplifier Contents 14K Gold-Plated Noise-Isolated Low-Lev FeaturesFCC Wants YOU to Know Before YOU Begin the Installation PreparationSupplied Hardware Choosing a Mounting LocationInstallation Order Routing Cables and WiresBefore YOU Make the Connections Preparing the Mounting AreaConnecting Ground and SWITCHED/PRIMARY Power Fm Page 7 Friday, May 12, 2000 1246 PM Connecting Inputs LOW-LEVEL InputsHIGH-LEVEL Speaker Wire Inputs Using either a floating or common ground connectionCommon Ground Connection Four Speaker OutputsFloating Ground Connection Two Speaker Outputs Connecting Speakers Preparing the Speaker WiresConnecting Four Speakers Connecting Two Speakers Unbridged ConnectionConnecting Two Speakers Bridged Connection Connecting Two Unbridged Speakers and One Bridged Subwoofer Completing the Installation Testing ConnectionsCle’s negative battery terminal. Then Mounting the AmplifierCompleting the Installation Turning on Amplifier Adjusting the Audio LevelOperation Adjusting Frequency Crossover Troubleshooting Symptom Possible Cause SuggestionCare Replacing a FuseReplacing the SFE-Type Fuse Replacing the Blade-Type FusesFm Page 22 Friday, May 12, 2000 1246 PM Specifications Limited One-Year Warranty