Connecting Peripherals Most peripherals (monitors, scanners, projectors, speakers, etc.) connect in the back. Some keyboards and mice connect to color coded inputs on the back of the CPU. Usually, however, local printers, keyboards and mice connect to rear USB ports. External speakers usually connect to the small green input on the back. The monitor is a larger port that allows the monitor cable to be screwed securely to the CPU. When using an LCD projector, you must unplug this cable and attach the LCD cable in its place (unless it’s permanently mounted in your room). The front panel offers access for some of the most common needs. Disc drive types: CD ROM (read only) or CD-RW (read and write) or DVD ROM (read only) or DVD-RW (read and write Status light (lights when drive is busy reading or writing) Eject buttons Power Button— Push once to soft reboot (restart computer) Hold for 20 + seconds to do a hard reboot (computer will turn off—then push it to restart computer) Power On Light (computer is on) Hard Drive Activity Light (computer’s hard drive is reading or writing information) USB ports—for external devices like cameras, USB jump drives, etc. Headphone Jack Microphone Jack LCD Connection You must connect a VGA monitor cable from your projector to the back of your computer. For sound, you have several options. #1—if you have a permanently mounted projector, this is already connected. #2—if you are connecting a portable unit to your computer, you can use the speakers on your computer for sound. #3—if you are connecting a DVD/VCR player to the LCD, you will need to run cables from the VCR to the back of the projector. This will give you sound from the built in speaker. If you wish to add external speakers to the projector, you will need to connect the speakers to the back of the projector. A splitter may be used at the computer end of the cable, so you can see both the computer monitor and the LCD at the same time. To monitor To LCD To back of CPU Controlling the projector 1. Turn on the power supply if there is one. Then turn on the projector by pressing the power button. A green light means it is on. Volume 2. Select the source (computer, VCR, TV, etc.)—This generally toggles through your options and often automatically selects the active input. 3. Adjust the volume as needed. 4. Focus using the rotating part by the lens. 5. Zoom in using the other rotating part by the lens. 6. Turn off the projector by pressing the power button twice. Once it has cooled down, flip off the main power switch (if the unit has one). Note: If your projector has a remote, you can control many of these functions easily with that device.
© Copyright 2026 Paperzz