TOPIC
This article answers some frequently asked questions about Apple displays.
6. I purchased an Apple monitor and I cannot plug the power cable into the wall outlet. It has a shield around it that prevents this. How do I plug this monitor in? 7. I have changed some of the settings on my Apple Multiple Scan Display. How can I restore the monitor to the factory settings? 8. I connected my Multiple Scan 15 Display to my computer and I cannot get sound to play through the speakers on the monitor. Why is this? DISCUSSION
1. Question : I have an Apple Multiple Scan 15 Display and a Macintosh IIsi and IIci. The monitor will not work with either computer. Do I need an adapter? Answer : Out of the box the Apple Multiple Scan 15 Display is not compatible with the Macintosh IIsi and IIci. The problem is related to the sync lines. The IIci and IIsi were designed to work with the 13-inch HighRes RGB, which uses a composite sync input. The Multiple Scan 15 Display only accepts sync on separate input lines, one for the horizontal and one for the vertical. To use the monitor with either of these computers, you must either use a video card that is compatible with the Apple Multiple Scan 15 Display, or use a special display adapter available from some third-party companies. Display adapters are available from several third-pary companies such as Enhanced Cable Technology, Griffin Technology, and MacAdapt. 2. Question : I attached an Apple Multiple Scan Display to my computer and I am not able to switch resolutions, even though the computer I am using supports the different resolutions. What is causing this? Answer : Many older Macintosh computers did not support resolution switching using software and require a cable adapter to produce different resolutions. Other computers do not provide the proper sync signals to work with the monitor and require an adapter to get any picture. The table below gives details for what is needed to use Apple computers with Apple Multiple Scan Displays. The following (B revision) video cards can provide 832 x 624 resolution when used with a video adapter: The following computers do not produce the proper sync signal to produce a picture on the monitor. An adapter must be used to view a correct video signal on these computers. These computers can support a maximum 640 x 480 video signal. The following computers and video cards require a cable adapter to provide 832 x 624 resolution: The following computers and video card do not require an adapter: Multiple Scan 17 and 20 Displays To get higher resolutions, your computer must support that resolution. The number of colors at the various resolutions depends on the amount of Video RAM (VRAM) you have in your Macintosh. The following computers and video cards require a cable adapter to provide different resolutions: The following computers and video card do not require an adapter: Display adapters are available from several third-pary companies such as Griffin Technology and MacAdapt. 3. Question : I have a monitor that uses a Sony Trinitron picture tube. About one third of the way from the top and/or bottom of the monitor, I see a very thin gray line. Is there something wrong with my monitor? Answer : When you display a white or light background on some Apple color displays, you may notice a thin gray horizontal line or lines across the screen. These thin lines are supporting or stabilizing wires inside the CRT and are part of Sony's Trinitron CRT technology. Sony Trinitron CRTs have a specially constructed aperture grill that improves the CRT's convergence and produces a sharp and clear image. The aperture grill is a grid of vertical wires located just behind the CRT screen. These CRTs require a horizontal stabilizing wire or wires to help support the aperture grill. The supporting wires, which are thinner than a human hair, stabilize the aperture grill against shocks. The Macintosh 13-inch Hi-Res RGB Monitor and 14-inch Macintosh Color Display have a single support wire across the bottom third of the display. Other Apple displays that feature Sony's Trinitron or Mitsubushi's Diamondtron CRT's have two support wires visible across the top and bottom thirds of the screen. Note: These are not screen defects. Their presence cannot be adjusted out or eliminated by repairing or replacing modules in the display. 4. Question : There is a large black border around the edge of the viewable area of my monitor and the picture does not fill the entire screen. Is there something wrong with my monitor? Answer : It is normal for your monitor to have a black border around the displayed picture. The closer an image gets to the edges of a display, the lower its quality. The black border will vary in size, depending on the type of monitor you have. Some Apple displays allow you to fill most of the screen using a button on the front of the display. 5. Question : I have a monitor experiencing one of the following symptoms: Answer : These symptoms can all be caused by electromagnetic interference. All monitors are subject to electromagnetic interference. Larger monitors are affected more by this than smaller ones. If your monitor is exhibiting any of the above symptoms, try temporarily moving it to a different location to check for interference. If the symptom does not occur after moving the monitor, then there was likely a source of interference in the area where the monitor was originally located. Possible sources of electromagnetic interference include: 6. Question : I purchased an Apple monitor and I cannot plug the power cable into the wall outlet. It has a shield around it that prevents this. How do I plug this monitor in? Answer : The power cable you are describing is designed to be connected to the power outlet on the back of your computer. Look on the back of the computer just above where the computer's power cord is connected. There will usually be a receptacle there with three prongs in it. Plug the shielded end of the monitor's power cable into this receptacle. If your computer does not have such a receptacle (many older Macintosh models did not), you can obtain a regular power cord from most computer dealers and electronic stores. If you take the power cord you have to the location from which you purchased it, they may be able to swap it for the power cable you need. 7. Question : I have changed some of the settings on my Apple Multiple Scan Display. How can I restore the monitor to the factory settings? Answer : You can restore the monitor to factory settings as follows: This procedure may also help if the monitor is out-of-focus, has a tilted raster, is experiencing pin-cushioning, and so on. 8. Question : I connected my Multiple Scan 15 Display to my computer and I cannot get sound to play through the speakers on the monitor. Why is this? Answer : To get computer sounds to play through the speakers of an attached Multiple Scan 15 Display, you must connect the sound out cable that came with the monitor from the sound output port on the back of your computer (the one with the speaker icon) to the sound port on the monitor. This article provides information about a non-Apple product. Apple Computer, Inc. is not responsible for its content. Please contact the vendor for additional information. The following article can help you search for a particular vendor's address and phone number: Article 17159: " Locating Vendor Information " |
||||||
| Document Information | |
| Product Area: | Monitors-Displays |
| Category: | General Topics |
| Sub Category: | General Topics |
Copyright © 2000 Apple Computer, Inc. All rights reserved.