Radio Shack XL-260 Completing the Installation, Testing Connections, Mounting the Amplifier

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LEVEL (MIN/MAX)

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ˆCompleting the Installation

TESTING THE

CONNECTIONS

Before you continue, make sure you have securely made all connections. Then recon- nect the cable to the vehicle’s negative () battery terminal.

Seton the left and right sides of the amplifier to its mid position (see “Adjusting the Audio Level” on Page 18). Then turn on your vehicle’s ignition and auto sound system to confirm that the amplifier

and auto sound system operate properly. The amplifier turns on after a few seconds.

If you cannot quickly confirm whether the auto sound system and amplifier are working properly, turn off your vehicle’s ignition and disconnect the cable from your vehi-

cle’s negative (–) battery terminal. Then

recheck your connections.

After you test the auto sound system and amplifier and verify that everything is proper- ly connected and working, follow the instruc- tions in “Mounting the Amplifier.”

MOUNTING THE AMPLIFIER

Sheet Metal Screw

Lock Washer

Flat Washer

9/64-Inch Mounting Holes

Once you verify that the amplifier is connect- ed properly, follow these steps to mount it.

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

2.To make mounting more convenient, temporarily disconnect the amplifier’s connections (ground, primary power, remote power, your auto sound system’s input, and speakers).

Chassis or Car Mat

Note: If you have not already done so, be sure to mark each wire with the name of the terminal you will reconnect it to.

3.Using the mounting holes on the ampli- fier as a guide, mark the positions for the mounting holes.

4.Drill 9/64-inch (3.57 mm) holes at the marked locations, being careful not to damage anything behind the mounting surface.

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Completing the Installation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents XL-260 High Power 2-Channel Bridgeable Amplifier Contents FCC Wants YOU to Know Features14K Gold-Plated Noise-Isolated Low-Lev 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 connectionFloating Ground Connection Four Speaker OutputsCommon 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 Operation Adjusting the Audio LevelTurning on Amplifier 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.