Apple imac usb 2 0 User Manual
Here you can view all the pages of manual Apple imac usb 2 0 User Manual. The Apple manuals for Display are available online for free. You can easily download all the documents as PDF.
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132 - iMac (USB 2.0) Take Apart Neck Assembly, 20" and 17" Displays • Remove the power supply insulators. • Remove the fan. • Remove the fan bracket. • Remove the neck spoke retainer cap. • Remove the blind mate connector screws. • Remove the Faraday cage. • Remove the outer plastic housing. • Remove the flat panel display. • Remove the back cover Procedure 1. To remove the neck assembly, follow all the preliminary steps mentioned above. When you are finished, you will be left with the iMac...
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iMac (USB 2.0) Take Apart - 133 Neck Assembly, 15" Display Neck Assembly, 15 Display Tools This procedure requires the following tools: • Torx-10 screwdriver Part Location Preliminary Steps Before you begin, do the following: • Position the computer in the service stand. • Remove the user access plate. • Remove the bottom housing. • Remove the drive carrier assembly. • Remove the power supply. • Remove the power supply insulators. • Remove the fan.
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134 - iMac (USB 2.0) Take Apart Neck Assembly, 15" Display • Remove the plastic cable retainer (under the fan). • Remove the cap spoke holder. • Remove the blind mate connector screws. • Remove the Faraday cage. • Remove the flat panel display. • Remove the panel shield. • Remove the back cover Procedure The neck assembly (661-2969) for the 15-inch iMac (USB 2.0) computer is shown below. It can be identified by the part number on the TMDS cable (circled). The part number should read 620-2384.
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© 2003 Apple Computer, Inc. All rights reserved. Service Source Troubleshooting iMac (USB 2.0)
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iMac (USB 2.0) Troubleshooting - 1 General Information General Information Overview: How do you identify the different models? 1. Identify the different models by their serial number. Search for the serial number in GSX (Global Service Exchange) under the “Parts Lookup” or search in the Service Parts Database. 2. Identify the processor speed. If the system is up and running, select “About this Mac” under the Apple icon in the Finder. Or, select the “More Info” button on the “About this Mac” window....
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2 - iMac (USB 2.0) Troubleshooting General Information 3. Whenever the17-inch LCD display (661-2715) is replaced, a display shield/gasket kit (076-0958) must be installed on the new panel. Instructions for installing the shield/gasket kit are included with the new LCD panel. 4. The LED and microphone are part of the 17-inch display bezel (922-5297); they cannot be ordered separately. 5. The LED functions differently on the iMac (17-inch Flat Panel). The LED does not light up when the power is on;...
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iMac (USB 2.0) Troubleshooting - 5 General Information I/O Ports The PMU Chip The PMU (Power Management Unit) is a microcontroller chip that control\ s all power functions for the computer. The PMU (location shown below) is a computer within a co\ mputer. It has memory, software, firmware, I/O, two crystals, and a CPU. Its function is to: • Tell the computer to turn on, turn off, sleep, wake, idle, etc. • Manage system resets from various commands. • Maintain parameter RAM (PRAM). • Manage the...