Apple imac usb 2 0 User Manual
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122 - iMac (USB 2.0) Take Apart Back Cover, 20" Display Procedure 1. Remove the three screws on the wire deflector Lift the wire deflector off the back cover. 2. Peel the rubber pads off the back cover and set them aside temporarily. Replacement Note: Before replacing the back cover or LCD panel, press the rubber pads back into the grooves on the shield before closing the panel.
iMac (USB 2.0) Take Apart - 123 Back Cover, 20" Display 3. Remove the last screw and gently feed the neck cables through the hole. Note: If the iMac is laying in the repair fixture, support the base of the computer when removing the screw shown below. This screw holds the neck to the back cover and the computer is unbalanced when the panel is removed. 4. Align the TMDS connector with the notches and carefully feed the cable through the hole.
124 - iMac (USB 2.0) Take Apart Back Cover, 20" Display 5. Lift the back cover off the neck extension.
iMac (USB 2.0) Take Apart - 125 Back Cover, 17" Display Back Cover, 17 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 flat panel display.
126 - iMac (USB 2.0) Take Apart Back Cover, 17" Display Procedure 1. Note the location of the inverter (A),TMDS (B), microphone (C), and LED (D) cables. Remove four screws that secure the metal wire deflector and the base assembly to the back cover. Remove the metal wire deflector. 2. Remove the tape from the neck cables. Pull the cables through the hole in center of the back cover. Note: The hole in the back cover is notched; align the wide TMDS connector with the notches.
iMac (USB 2.0) Take Apart - 127 Back Cover, 15" Display Back Cover, 15 Display Tools No tools are required. Part Location Preliminary Steps Before you begin, do the following: • Position the computer in the service stand. • Remove the flat panel display. • Remove the panel shield.
128 - iMac (USB 2.0) Take Apart Back Cover, 15" Display Procedure 1. Lift the display cover off the neck assembly.
iMac (USB 2.0) Take Apart - 129 Neck Extension Identification Neck Extension Identification There are many neck assemblies and display panels for the iMac (Flat Panel) computers. Identify which neck assembly belongs in the system by the 620-xxxx tag attached to the TMDS cable (circled below). Refer to the Neck Identification table on the next page for more information.
130 - iMac (USB 2.0) Take Apart Neck Extension Identification Neck Identification Table Neck Assemblies KBase Article For additional information and photos, refer to article 86525: iMac: Flat Panel Neck Assembly Differences. Table 1: Neck Identification Product Neck Part Number Neck Label 620-xxxx Use with Display iMac (Flat Panel) 15", 700 MHz/800 MHz 661-2585 No Label on this neck This neck has a blind mate connector, while later neck assemblies do not. 661-2582 iMac (17" Flat Panel), 800 MHz 661-2716 620-2122 661-2715 iMac (17" Flat Panel, 1GHz) and iMac (USB 2.0) 17", 1.25 GHz 661-2825 620-2675 661-2715d iMac (USB 2.0) 15", 1 GHz 661-2969, LG 661-3021, LG 661-3022, QDI 620-2678 620-2682 620-2681 661-2582, LG 661-3019, LG 661-3020, QDI iMac (USB 2.0) 20", 1.25 GHz 661-2990 620-2580 661-2991
iMac (USB 2.0) Take Apart - 131 Neck Assembly, 20" and 17" Displays Neck Assembly, 20 and 17 Displays 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.