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for more information. Hot Issues External Displays Not Supported - 6 External Displays Not Supported Connecting an external display to Tech Info Library (TIL) article #43016, "iMac: Can I Attach an External Display?" Refer to the iMac is not supported by Apple. Apple designed iMac with a very sharp, 15-inch internal display and no video-out port to support an external monitor. The db-15 port on the iMac was not designed to connect a second display.
for more information. Hot Issues External Displays Not Supported - 6 External Displays Not Supported Connecting an external display to Tech Info Library (TIL) article #43016, "iMac: Can I Attach an External Display?" Refer to the iMac is not supported by Apple. Apple designed iMac with a very sharp, 15-inch internal display and no video-out port to support an external monitor. The db-15 port on the iMac was not designed to connect a second display.
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This update improves the ability of iMac to Ensure Firmware Update is Successful If you performed the iMac firmware update and it was not successful, this article provides some additional assistance ensuring the update is successful. You do not have to install iMac Update 1.0 before you install iMac Update 1.1. • TIL article # 58370, iMac: How to identify USB devices when starting up, improves the startup time when many USB devices are connected, and enables new USB solutions. Hot Issues iMac Updates - 8 and those previously released in iMac Update 1.0.
This update improves the ability of iMac to Ensure Firmware Update is Successful If you performed the iMac firmware update and it was not successful, this article provides some additional assistance ensuring the update is successful. You do not have to install iMac Update 1.0 before you install iMac Update 1.1. • TIL article # 58370, iMac: How to identify USB devices when starting up, improves the startup time when many USB devices are connected, and enables new USB solutions. Hot Issues iMac Updates - 8 and those previously released in iMac Update 1.0.
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...8226; Two internal ATA connectors: one supports the hard disk drive and one supports the CD-ROM drive • Two 3.5 millimeter (mm) headphone jacks • One 3.5 mm sound output port for stereo sound output • One 3.5 mm sound input port for connection to your computer. • ...Clock/Calendar featuring CMOS custom circuitry with some Macintosh computers. Basics Standard Configurations - 4 • One 10/100 BaseT Ethernet RJ-45 connector for stereo sound input. The sound input port supports the Apple ...
...8226; Two internal ATA connectors: one supports the hard disk drive and one supports the CD-ROM drive • Two 3.5 millimeter (mm) headphone jacks • One 3.5 mm sound output port for stereo sound output • One 3.5 mm sound input port for connection to your computer. • ...Clock/Calendar featuring CMOS custom circuitry with some Macintosh computers. Basics Standard Configurations - 4 • One 10/100 BaseT Ethernet RJ-45 connector for stereo sound input. The sound input port supports the Apple ...
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...about a 30 degree viewing angle. There is currently set to support IrDA. Basics New Technologies - 1 2 Infrared connections that must be able to make infrared connections from the iMac. For infrared options to work there are three drivers that are not present or disabled, you will notice a difference... with other Apple products, you will not be in the rear of infrared the iMac is also a minimum 3-foot...
...about a 30 degree viewing angle. There is currently set to support IrDA. Basics New Technologies - 1 2 Infrared connections that must be able to make infrared connections from the iMac. For infrared options to work there are three drivers that are not present or disabled, you will notice a difference... with other Apple products, you will not be in the rear of infrared the iMac is also a minimum 3-foot...
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... digital subscriber line (DSL) modems, cable modems, and MPEG video devices. USB was designed to USB allows end users to overcome limitations of earlier peripheral connection technologies. USB technology can include keyboards, mice, joysticks, telephones, scanners, printers, security dongles, microphones, speakers, floppy drives, cameras, modems, CD-ROM drives, etc...
... digital subscriber line (DSL) modems, cable modems, and MPEG video devices. USB was designed to USB allows end users to overcome limitations of earlier peripheral connection technologies. USB technology can include keyboards, mice, joysticks, telephones, scanners, printers, security dongles, microphones, speakers, floppy drives, cameras, modems, CD-ROM drives, etc...
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...ID conflicts • Termination issues • Loading device drivers (although some devices directly through the USB cable • Two data speeds for the connection of up to hassle with • A "tiered star hub" network topology (see diagram later in this section) allowing for devices: 1.5 and... 12 megabits per Basics New Technologies - 1 4 connect peripheral devices to a host computer on the fly, without having to 127 devices per host computer • Two simple, standardized plugs for the ...
...ID conflicts • Termination issues • Loading device drivers (although some devices directly through the USB cable • Two data speeds for the connection of up to hassle with • A "tiered star hub" network topology (see diagram later in this section) allowing for devices: 1.5 and... 12 megabits per Basics New Technologies - 1 4 connect peripheral devices to a host computer on the fly, without having to 127 devices per host computer • Two simple, standardized plugs for the ...
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"Downstream" means moving up the device chain, in the direction of the host computer. High speed connections (12 Mbps) use shielded cabling to the host computer or an upstream hub. Note: "Upstream" means moving down the device chain, away ...The Type B plug (pictured on the next page illustrates this concept. Figure 2 on the right) connects downstream to the USB device. Basics New Technologies - 1 7 The Type A plug (pictured on the left) connects to reduce interference at higher connection rates, while low speed (1.5 Mbps) may not. Some devices, such as mouse devices, have ...
"Downstream" means moving up the device chain, in the direction of the host computer. High speed connections (12 Mbps) use shielded cabling to the host computer or an upstream hub. Note: "Upstream" means moving down the device chain, away ...The Type B plug (pictured on the next page illustrates this concept. Figure 2 on the right) connects downstream to the USB device. Basics New Technologies - 1 7 The Type A plug (pictured on the left) connects to reduce interference at higher connection rates, while low speed (1.5 Mbps) may not. Some devices, such as mouse devices, have ...
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For example, with just one available USB socket, a customer could: • plug in a scanner, scan a photo, unplug the scanner • then plug in a printer, print that photo, unplug the printer &#..., backup the photo file, unplug the drive all without having to restart the host computer, or even go into sleep mode. USB also provides a faster connection and a larger number of use. Basics New Technologies - 1 9 Benefits of USB Technology The advantages of USB technology include hot-swapping capability, auto-configuring...
For example, with just one available USB socket, a customer could: • plug in a scanner, scan a photo, unplug the scanner • then plug in a printer, print that photo, unplug the printer &#..., backup the photo file, unplug the drive all without having to restart the host computer, or even go into sleep mode. USB also provides a faster connection and a larger number of use. Basics New Technologies - 1 9 Benefits of USB Technology The advantages of USB technology include hot-swapping capability, auto-configuring...
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... will not replace local area networking (for devices and hubs to connect to each other. The USB host typically provides two or three ... computer case) for example, 10BaseT Ethernet), though their data transfer speeds can be comparable. There is designed for connecting peripherals to the computer, not computers (or hosts) to . Basics New Technologies - 2 0 How a USB... A USB network is made up of the following components: • An operating system that supports USB. (Both iMac and Windows 98 support USB.) • A host, typically a controller chip set residing in the personal computer, ...
... will not replace local area networking (for devices and hubs to connect to each other. The USB host typically provides two or three ... computer case) for example, 10BaseT Ethernet), though their data transfer speeds can be comparable. There is designed for connecting peripherals to the computer, not computers (or hosts) to . Basics New Technologies - 2 0 How a USB... A USB network is made up of the following components: • An operating system that supports USB. (Both iMac and Windows 98 support USB.) • A host, typically a controller chip set residing in the personal computer, ...
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Note: USB ports, cables, and plugs are only available from hubs. Basics New Technologies - 2 2 Note: Type A ports (as shown in the previous illustration) are often labeled with the standard USB symbol shown in the following illustration. This information is good to know when you need to , it must have an internal hub. If a device (like a keyboard or display) has Type A ports for additional devices to connect to identify, map out, and troubleshoot hub and device connectivity. Figure 4: Standard USB Symbol
Note: USB ports, cables, and plugs are only available from hubs. Basics New Technologies - 2 2 Note: Type A ports (as shown in the previous illustration) are often labeled with the standard USB symbol shown in the following illustration. This information is good to know when you need to , it must have an internal hub. If a device (like a keyboard or display) has Type A ports for additional devices to connect to identify, map out, and troubleshoot hub and device connectivity. Figure 4: Standard USB Symbol
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...see the example tree diagram below). Basics New Technologies - 2 3 • Hubs, which serve as connection points for devices. Only hubs can also connect to the host. Hubs connect to extend the USB properly, users should alternate self-powered and bus-powered hubs. Hubs may be "...bus-powered" by an external power source (like an AC adapter). Hubs can connect to other items (displays, keyboards, etc.). Hubs also provide device detection, speed matching, and power control. Most freestanding external hubs provide ...
...see the example tree diagram below). Basics New Technologies - 2 3 • Hubs, which serve as connection points for devices. Only hubs can also connect to the host. Hubs connect to extend the USB properly, users should alternate self-powered and bus-powered hubs. Hubs may be "...bus-powered" by an external power source (like an AC adapter). Hubs can connect to other items (displays, keyboards, etc.). Hubs also provide device detection, speed matching, and power control. Most freestanding external hubs provide ...
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Like hubs, devices may be "bus-powered" by an external power source. Basics New Technologies - 2 4 • Devices, which connect to hubs and provide expanded functionality to hubs. Devices can be "self-powered" by the USB network, or be deceiving, since some devices are combined with hubs in the same physical case. Devices connect to devices, but looks can only connect to the computer. Devices cannot connect directly to the host using either the 1.5 or the 12 Mbps connection speed.
Like hubs, devices may be "bus-powered" by an external power source. Basics New Technologies - 2 4 • Devices, which connect to hubs and provide expanded functionality to hubs. Devices can be "self-powered" by the USB network, or be deceiving, since some devices are combined with hubs in the same physical case. Devices connect to devices, but looks can only connect to the computer. Devices cannot connect directly to the host using either the 1.5 or the 12 Mbps connection speed.
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... a built-in CPU cases, displays, keyboards, etc. • Bus-powered hubs can be connected to power limitations. Basics New Technologies - 2 7 USB Connectivity Rules Following are the rules for USB connectivity: • The maximum number of devices that can 't be connected to bus-powered hubs due to a single USB hub is 127 devices. (Note: A keyboard...
... a built-in CPU cases, displays, keyboards, etc. • Bus-powered hubs can be connected to power limitations. Basics New Technologies - 2 7 USB Connectivity Rules Following are the rules for USB connectivity: • The maximum number of devices that can 't be connected to bus-powered hubs due to a single USB hub is 127 devices. (Note: A keyboard...
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...the digital connections, they will not get 56K connections if one user calls another user directly. This means that users will connect at their end, which can use these connections. This internal modem supports both K56-Flex and V.90 communications protocols. By using a digital connection, a digital...56K connections, your Internet Service Provider or service you are connecting to must have digital connections to the Telephone Company, and then install special 56K digital modems which allows support of a higher speed transmit protocol from their site. Basics Modem - 3 1 Modem The iMac ...
...the digital connections, they will not get 56K connections if one user calls another user directly. This means that users will connect at their end, which can use these connections. This internal modem supports both K56-Flex and V.90 communications protocols. By using a digital connection, a digital...56K connections, your Internet Service Provider or service you are connecting to must have digital connections to the Telephone Company, and then install special 56K digital modems which allows support of a higher speed transmit protocol from their site. Basics Modem - 3 1 Modem The iMac ...
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For 33.6 Kbps or slower modems, line noise is still a factor, but it is much less of an issue for achieving good connections. Also, line noise will be a major factor on how fast your 56K modem connects. Basics Modem - 3 3 always connect at 33.6 speeds or less.
For 33.6 Kbps or slower modems, line noise is still a factor, but it is much less of an issue for achieving good connections. Also, line noise will be a major factor on how fast your 56K modem connects. Basics Modem - 3 3 always connect at 33.6 speeds or less.
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It is highly unlikely that the power filter board will ever fail, but information about this board is mounted on the logic board/mass storage chassis. It controls the DC power supply connection from the enclosure and sits between the power supply board and the logic board. Basics Power Filter Board - 35 Power Filter Board The power filter board is an EMC filtering board, which is included in the "No Power" section of the Troubleshooting chapter.
It is highly unlikely that the power filter board will ever fail, but information about this board is mounted on the logic board/mass storage chassis. It controls the DC power supply connection from the enclosure and sits between the power supply board and the logic board. Basics Power Filter Board - 35 Power Filter Board The power filter board is an EMC filtering board, which is included in the "No Power" section of the Troubleshooting chapter.
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... board/mass storage chassis. Connecting an external monitor will void the warranty. For example, one cable runs from the opposite side of the audio/video interconnect board to the IrDA connector on /off boards. Note: Apple does not support connecting an external monitor on /...off , video, and IrDA boards. The audio/video interconnect board sits between the logic board and the video and audio on the iMac...
... board/mass storage chassis. Connecting an external monitor will void the warranty. For example, one cable runs from the opposite side of the audio/video interconnect board to the IrDA connector on /off boards. Note: Apple does not support connecting an external monitor on /...off , video, and IrDA boards. The audio/video interconnect board sits between the logic board and the video and audio on the iMac...
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The sound system supports sample sizes up to 16 bits at a sample rate of the sound input and output jacks. Basics Sound - 3 9 Sound The 16-bit stereo audio circuitry provides high-quality sound input and output through the built-in microphone and speakers. The user can also connect external input and output devices by way of 44.1 kHz.
The sound system supports sample sizes up to 16 bits at a sample rate of the sound input and output jacks. Basics Sound - 3 9 Sound The 16-bit stereo audio circuitry provides high-quality sound input and output through the built-in microphone and speakers. The user can also connect external input and output devices by way of 44.1 kHz.
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Troubleshooting General/ Block Diagram - 2 Block Diagram The following illustration provides an overview of the iMac internal components and shows how they are connected. RGB Cable P301 Video Board CRT Power Cable P304 P305 P306 P302 P303 P701 P702 P502 Fan P508 Analog P506 P514 Board P505 CRT Power ...
Troubleshooting General/ Block Diagram - 2 Block Diagram The following illustration provides an overview of the iMac internal components and shows how they are connected. RGB Cable P301 Video Board CRT Power Cable P304 P305 P306 P302 P303 P701 P702 P502 Fan P508 Analog P506 P514 Board P505 CRT Power ...
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... end (in this case, the logic board) and trace power backwards through the system. Refer to poweron. If the system still won't power on, try connecting to locate the necessary test point referenced in the system: At the 1) AC outlet, 2) logic board, 3) power filter cable, 4) power supply board, and 5) power ...surface, remove the bottom access cover and then remove the logic board/ mass storage chassis to test for trickle power at internal points inside the iMac. At the AC Outlet First, unplug the keyboard from the computer. If you will want to test for power at various points in the...
... end (in this case, the logic board) and trace power backwards through the system. Refer to poweron. If the system still won't power on, try connecting to locate the necessary test point referenced in the system: At the 1) AC outlet, 2) logic board, 3) power filter cable, 4) power supply board, and 5) power ...surface, remove the bottom access cover and then remove the logic board/ mass storage chassis to test for trickle power at internal points inside the iMac. At the AC Outlet First, unplug the keyboard from the computer. If you will want to test for power at various points in the...
