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5.Turn off the engine. Then cut the wire at a point where there are at least several inches of wire on each side of the cut. Be sure both wire ends are away from all other metal objects under the dash.

Important Note: If you cut the correct wire, you will be unable to start your vehicle until you com- plete the alarm’s installation.

6.Try to start your vehicle. The engine should not crank. If it does crank, you cut an incorrect wire

— use a wire tap-in to restore the connection (see “Using Wire Tap- Ins” on Page 11).

7.Use a piece of masking tape to mark each wire end with its func- tion (such as STARTER (TO KEY) and STARTER (TO SOLE- NOID).

FINDING YOUR VEHICLE’S PARKING LIGHTS WIRE

To have your parking lights flash dur- ing an alert or when you use the car finder, you must connect your alarm system to your vehicle’s parking lights. Follow these steps to find the correct wire.

1.Locate the wire harness going from the back of your vehicle’s light control. If the control is on your vehicle’s steering column, the harness probably joins sev- eral other wiring harnesses.

2.Use the vehicle wiring’s color code to find the parking lights wire. To determine the wire’s color, call the Auto Alarm Helpline at 1-800-598-2527.

3.Touch one lead from a 12-volt test light or volt meter to a metal part of your vehicle and use the other lead to probe the wire.

4.Turn on your parking lights. The test light should light or the volt meter should indicate 12 volts only when the lights are on. If this is not the case, repeat this proce- dure from Step 3, selecting another wire.

5.After you locate the light wire, use a piece of masking tape to mark it with its function (LIGHTS).

10

Need Help? Call 1-800-598-2527

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Radio Shack RS-4000 installation manual Finding Your VEHICLE’S Parking Lights Wire
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RS-4000 specifications

The Radio Shack RS-4000 is an iconic piece of technology that embodies the spirit of innovation in the consumer electronics industry during the late 20th century. Launched in the 1980s, this personal computer made a significant impact on the home computing landscape, appealing to hobbyists, educators, and early computer enthusiasts alike.

One of the standout features of the RS-4000 was its affordability, which made technology accessible to a broader audience. The computer was powered by a Zilog Z80 microprocessor, a popular choice at the time due to its reliable performance and efficiency. With a clock speed of 4 MHz, the RS-4000 provided basic computing capabilities that were sufficient for word processing, simple programming, and educational software.

The RS-4000 came with 64 KB of RAM, expandable up to 256 KB, allowing users to enhance the system’s performance as their needs grew. For data storage, the computer utilized an external cassette tape interface, which was a common method for saving and loading programs during that period. This tape system was ultimately replaced as technology progressed, but it represented a significant step forward in personal computing.

Another notable aspect of the Radio Shack RS-4000 was its comprehensive range of input and output options. The machine featured basic keyboard input, a built-in speaker for sound output, and compatibility with various peripherals, including printers and modems. Additionally, it provided both video output to standard television sets and the option for users to connect external monitors, bringing versatility to the display options.

The RS-4000 supported a variety of programming languages, including BASIC, which allowed users to delve into programming and develop their software applications. This capability contributed to the rise of a generation of computer coders and technology enthusiasts who would go on to shape the digital future.

In summary, the Radio Shack RS-4000 was more than just a computer; it was a catalyst for creativity and innovation during the formative years of personal computing. With its user-friendly design, expandability, and a growing library of software, the RS-4000 played a crucial role in helping individuals understand and embrace the digital age. Although technology has advanced significantly since its release, the legacy of the RS-4000 remains in the hearts of those who experienced it, marking a pivotal moment in the evolution of personal computers.
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