Radio Shack XL-400 owner manual Care, Replacing a Fuse, Replacing the SFE-Type Fuse

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Symptom

Possible Cause

Suggestion

 

 

 

 

 

 

 

 

 

Distorted sound (continued)

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.

 

 

 

CARE

To enjoy your amplifier for a long time:

Keep the amplifier dry. If it gets wet, wipe it dry immediately.

Use and store the amplifier only in nor- mal temperature environments.

Handle the amplifier gently and care- fully. Do not drop it.

Keep the amplifier away from dust and dirt.

Wipe the amplifier with a damp cloth occasionally to keep it looking new.

Modifying or tampering with the amplifier’s internal components can cause a malfunc- tion and might invalidate its warranty and void your FCC authorization to operate it. If your amplifier is not performing as it should, take it to your local RadioShack store for as- sistance.

REPLACING A FUSE

If the amplifier does not operate, you might need to replace the red power cable’s 60- amp SFE-type fuse or one or both of the 30- amp blade-type fuses on the amplifier’s back panel. Check all fuses.

Important: Let the amplifier cool down and see if it starts again before you assume a fuse needs to be replaced.

Caution: Do not use a fuse with ratings other than those specified. Doing so might damage your amplifier.

Replacing the SFE-Type Fuse

1.Disconnect the cable from the vehicle’s negative (–) battery terminal.

2.Push together and twist the fuse holder’s parts on the red power cable until they spring apart. Then remove the fuse.

Fuse

3.If the fuse is blown, replace it. Use only an SFE-type fuse with the proper rating (available at many automotive supply stores). The fuse must be 60 amps.

4.Reassemble the fuse holder by inserting the fuse into the longer of the fuse holder’s ends, and pushing together and twisting the two parts until they latch together.

5.Reconnect the cable to the vehicle’s negative (–) battery terminal.

Replacing the Blade-Type Fuses

1.Disconnect the cable from the vehicle’s negative (–) battery terminal.

Troubleshooting

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Contents XL-400 High Power 2-Channel Bridgeable Amplifier Contents Features FCC Wants YOU to Know14K Gold-Plated Noise-Isolated Low-Lev Preparation Before YOU Begin the InstallationSupplied Hardware Choosing a Mounting LocationRouting Cables and Wires Installation OrderBefore YOU Make the Connections Preparing the Mounting AreaConnecting Ground and SWITCHED/PRIMARY Power Fm Page 7 Friday, May 12, 2000 1246 PM LOW-LEVEL Inputs Connecting InputsUsing either a floating or common ground connection HIGH-LEVEL Speaker Wire InputsFour Speaker Outputs Floating Ground ConnectionCommon Ground Connection Two Speaker Outputs Preparing the Speaker Wires Connecting SpeakersConnecting Two Speakers Unbridged Connection Connecting Four SpeakersConnecting Two Speakers Bridged Connection Connecting Two Unbridged Speakers and One Bridged Subwoofer Testing Connections Completing the InstallationCle’s negative battery terminal. Then Mounting the AmplifierCompleting the Installation Adjusting the Audio Level OperationTurning on Amplifier Adjusting Frequency Crossover Symptom Possible Cause Suggestion TroubleshootingReplacing a Fuse CareReplacing the SFE-Type Fuse Replacing the Blade-Type FusesFm Page 22 Friday, May 12, 2000 1246 PM Specifications Limited One-Year Warranty