Radio Shack ET-543 owner manual Troubleshooting, Solutions

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43-1043.fm Page 15 Tuesday, August 17, 1999 10:36 AM

TROUBLESHOOTING

We do not expect you to have any problems with your telephone, but if you do, the following suggestions might help. If you still have problems, check other phones on the same line to see if they work properly. If they do and the problem does not seem to be with your phone service, take your phone to your local RadioShack store for assistance.

Problem: The handset does not work.

Solutions:

•Be sure POWER is set to ON.

•Move the handset closer to the base.

•Be sure the phone line cord and AC adapter are correctly and securely con- nected.

•Be sure the battery is connected and charged.

•Fully extend the base’s antenna vertically.

•Return the handset to the cradle for 10 seconds, then try again.

Problem: Volume drops or you hear unusual sounds.

Solution: Someone has picked up another phone on the same line. Hang up the other phone.

Problem: Call is noisy.

Solutions:

•Do not place the base near appliances or large metal objects.

•Hang up and redial the number.

•Keep the handset away from interference sources such as computers, remote control toys, wireless microphones, wireless alarm systems, wireless intercoms and room monitors, fluorescent lights, and electrical appliances. If the interfer- ence is severe, turn off the interfering device.

•Press CH to switch to another channel.

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Contents ET-543 Features Fm Page 3 Tuesday, August 17, 1999 1036 AM FCC Statement Read this Before InstallationContents Installation Installing the PhoneSelecting a Location Connecting Battery Charging BatteryPreparation Setting the Dialing Mode MAKING/ANSWERING a Call Using the Handset At the BaseUsing the Handset Away from the Base OperationUsing Redial Using FLASH/DELReducing Interference Memory Dialing UsingStoring a Number in Memory Entering a Pause A Memory Number Dialing a Stored NumberChain Dialing Testing Stored Emergency NumbersSolutions TroubleshootingProblem The handset’s range decreases Care and Maintenance FCC Wants YOU to Know Replacing BatteryLightning RadioShack Division of Tandy Corporation Fort Worth, Texas

ET-543 specifications

The Radio Shack ET-543 is a noteworthy addition to the realm of portable electronic technology, particularly in the category of handheld calculators and educational tools. Launched during a vibrant era of innovation, the ET-543 encapsulates the spirit of the late 20th century, when personal computing and digital gadgets became increasingly accessible to the general public.

At its core, the ET-543 features a natural display that allows for easy viewing of calculations, making it user-friendly for both novices and seasoned users alike. The device is equipped with a combination of mathematical functions that streamline computations ranging from basic arithmetic to more complex algebraic operations. This wide array of capabilities makes the ET-543 an ideal choice for students and professionals who require a reliable tool for everyday calculations.

One of the standout technologies of the ET-543 is its robust memory function, which allows users to store multiple calculations for later use. This feature is particularly beneficial for users who engage in repetitive tasks or require a quick reference for previously calculated values. Coupled with its programmable functions, the ET-543 presents a versatile platform that can accommodate a range of mathematical needs.

In terms of design, the Radio Shack ET-543 boasts a compact and lightweight form factor, making it highly portable. This characteristic is essential for users who need a dependable calculator on the go, whether in the classroom, workplace, or during travel. The button layout is intuitive, allowing for easy navigation through various functions without the need for extensive training.

Another important aspect of the ET-543 is its educational value. The device serves as a practical teaching aid, helping students grasp fundamental concepts of mathematics and computation. Its durability and ease of use ensure that it stands up to repeated use in educational environments.

In summary, the Radio Shack ET-543 is more than just a calculator; it embodies the fusion of technological innovation and user-centric design. With features tailored to meet a variety of mathematical challenges, coupled with its portability and educational utility, the ET-543 remains a symbol of practical technology that resonates with users across generations.
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