Radio Shack XL-260 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” on

 

 

Page 22).

 

 

 

 

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 22).

 

 

 

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.

 

 

 

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Troubleshooting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents XL-260 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 AreaFm Page 6 Tuesday, May 9, 2000 1002 AM Connecting Ground and SWITCHED/PRIMARY Power 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 SuggestionTroubleshooting Care Replacing a FuseReplacing the SFE-Type Fuse Replacing the Blade-Type FusesSpecifications Limited One-Year Warranty

XL-260 specifications

The Radio Shack XL-260 was a pioneering model in the compact scientific calculator market introduced in the early 1980s. This device was particularly well-regarded for its unique blend of functionality, portability, and affordability, making it a popular choice among students and professionals alike.

One of the main features of the XL-260 was its classic LCD display, which offered a clear and easy-to-read output. The display was capable of showing up to 8 digits and allowed for straightforward viewing of calculations. This was particularly beneficial for users who needed to perform complex mathematical computations without experiencing eye strain.

The XL-260 was equipped with a wide range of mathematical functions that catered to different user needs. Basic arithmetic operations such as addition, subtraction, multiplication, and division were always accessible. Additionally, it featured advanced functions including square roots, percentages, and memory storage, allowing users to save and recall values quickly. This made it an excellent tool for engineering students and professionals who often needed to perform numerous calculations.

One of the standout technologies of the XL-260 was its use of solar power, which complemented its battery operation. This hybrid power source ensured that users could rely on the calculator for extended periods without the constant need for battery replacements. The solar panel, situated atop the device, captured light to power the electronic components, showcasing a forward-thinking approach to energy efficiency for consumer electronics during that era.

Another characteristic of the XL-260 was its user-friendly layout. The calculator had well-defined buttons that provided tactile feedback, making it easy to input data accurately. The keys were designed to be durable and responsive, reducing the potential for user error during fast-paced calculations. The compact design and lightweight profile added to its appeal, allowing users to easily carry it in their bags or even pockets.

Overall, the Radio Shack XL-260 represented an important era in the evolution of personal calculators. Its combination of essential features, user-oriented design, and innovative power solutions made it a staple for many during its time. Though the landscape of technology has evolved significantly since its release, the XL-260 remains a nostalgic symbol of early digital calculation devices that laid the groundwork for future advancements in scientific computing.