Radio Shack ET-550 owner manual Replacing Battery

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43-1050a.fm Page 23 Tuesday, August 17, 1999 12:56 PM

REPLACING THE

BATTERY

If you follow the instructions in “Con- necting and Charging the Battery” on Page 10, the battery should last about one year. If the battery will not hold a charge for more than 2 hours after an overnight charge, replace the battery with a new 3.6 V, 300 mAh battery with a connector that fits the socket in the battery compartment. You can order a replacement battery through your local RadioShack store.

Install the new battery as described below, then charge the battery for about 14 hours before you use the handset.

Note: To avoid losing phone numbers stored in the handset’s memory, try to install and begin charging the new battery within 1 minute after removing the old one.

1.Using a Phillips screwdriver, remove the screw on the battery compartment cover on the bottom of the handset. Then press down and slide off the cover in the direc- tion of the arrow.

2.Gently pull on the battery connec- tor to disconnect it, then remove the battery.

3.Insert a fresh battery and insert its connector into the socket inside the battery compartment.

4.Replace the cover and tighten the screw.

Caution: You must use a replacement battery of the same size and type.

Important: This product contains a re- chargeable nickel cadmium battery. At the end of the battery’s useful life, it must be recycled or disposed of proper- ly. Contact your local, county, or state hazardous waste management authori- ties for information on recycling or dis- posal programs in your area. Some options that might be available are: mu- nicipal curb-side collection, drop-off box- es at retailers such as your local RadioShack store, recycling collection centers, and mail-back programs.

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Contents ET-550 Paging/Two-Way Intercom System Features43-1050a.fm Page 3 Tuesday, August 17, 1999 1256 PM FCC Statement Read this Before InstallationContents Placing the Base on a Desk Top InstallationSelecting a Location Mounting the Base on a Wall Plate Lower Mounting the Base Directly on the Wall Connecting and Charging the Battery 43-1050a.fm Page 11 Tuesday, August 17, 1999 1256 PM Turning the Ringer ON/OFF Setting the Dialing ModeMaking Receiving Calls Using the SpeakerphoneUsing the Handset OperationChanging the Channel Switching Between the Handset and SpeakerphoneUsing Both the Handset and Speakerphone Putting a Call on HoldUsing the PAGING/ Intercom Features Using Flash Using RedialStoring a Number in Memory Memory DialingEntering a Pause Dialing a Memory Number Chain-Dialing Service NumbersTesting Stored Emergency Numbers Troubleshooting 43-1050a.fm Page 21 Tuesday, August 17, 1999 1256 PM Care and Maintenance Replacing Battery Lightning FCC Wants YOU to Know43-1050a.fm Page 25 Tuesday, August 17, 1999 1256 PM 43-1050a.fm Page 26 Tuesday, August 17, 1999 1256 PM 43-1050a.fm Page 27 Tuesday, August 17, 1999 1256 PM UDZZ01504ZB

ET-550 specifications

The Radio Shack ET-550 is a notable device from the well-known electronics retailer, combining simplicity and functionality for users in the late 20th century. Positioned as a reliable personal electronic device, the ET-550 attracted tech enthusiasts and casual users alike, eager to embrace the digital age.

One of the main features of the ET-550 is its compact and lightweight design, making it highly portable. Users appreciated the ease with which they could carry the device, whether for personal use or during travel. The device had a user-friendly interface, ensuring that even those with limited technical knowledge could navigate through its various functions effortlessly.

The ET-550 incorporated advanced technology for its time, utilizing a clear LCD screen that displayed information prominently. This screen made it easy for users to read text and access various features without straining their eyes. The device also boasted a built-in keyboard that was comfortable to use, enabling quick data input and interaction.

Among its characteristics, the ET-550 featured a robust memory capacity, allowing users to store a plethora of notes, calculations, and data entries. This aspect made it particularly appealing to professionals and students who needed to keep track of important information on the go. Additionally, the ET-550 included a calculator function, helping users perform a variety of mathematical operations with ease, which was essential for business and academic tasks.

Another significant technology employed in the ET-550 was its power efficiency. The device was designed to consume minimal battery life, which was a key consideration for users relying on portability. With long-lasting battery performance, the ET-550 ensured that users could depend on it through extended periods without the need for frequent recharging or battery replacement.

The Radio Shack ET-550 also offered a variety of connectivity options to facilitate data sharing and device integration. Whether connecting to a computer or other peripheral devices, the ET-550 provided versatility in its applications, further enhancing its appeal.

In conclusion, the Radio Shack ET-550 stands out as a testament to innovation in personal electronics during its time. With features focused on usability, portability, and efficiency, it captured the attention of a diverse user base, marking an important chapter in the evolution of personal tech.
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