49-840in.fm Page 14 Thursday, August 19, 1999 10:47 AM

MOUNTING AND CONNECTING THE ANTI- CARJACKING SWITCH

Select a location for the anti-carjack- ing switch. You should be able to reach the switch when sitting in the driver’s seat, but the switch should be hard to find. A typical mounting loca- tion is under the dash. The mounting surface should be less than 1/8-inch thick.

Follow these steps to mount the switch.

To Harness

To Metal Body

Part

Lockwasher

Nut

CONNECTING TO

POWER

Before you connect the system to power, disconnect your vehicle battery’s negative (–) power lead.

Note: You must re-enter any pro- grammed information into other elec- tronic devices in your vehicle, such as clocks and radios, after you recon- nect the cable.

Connect the main wiring harness’s red wire to the wire you marked CON-

STANT POWER.

Connect the main wiring harness’s black wire to a metal vehicle body part that is not insulated from the main chassis by a plastic part.

1.Drill a 1/4-inch hole in the mount- ing surface, taking care not to damage anything behind the sur- face.

Connect the main wiring harness’s red wire with black stripe to the wire you marked IGNITION POWER.

2.Remove the switch’s top nut and lock washer.

3.Push the switch into the hole from the back of the mounting surface. Align the switch so ON is away from the driver. Then secure it with the lock washer and nut.

4.Secure the switch’s connector to a metal vehicle body part using an existing screw.

5.Route the other wire to the main wiring harness and plug it into the matching socket on the system.

CONNECTING THE STARTER DISABLE MODULE

1.Use a yellow wire tap-in to con- nect the module’s red wire to the wire you marked STARTER (TO KEY).

2.Use a yellow wire tap-in to con- nect the module’s white wire to the wire you marked STARTER (TO SOLENOID).

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Radio Shack RS-4000 installation manual Connecting to Power, Connecting the Starter Disable Module
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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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