Apple imac 21 5 inch late 2009 User Manual
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iMac (21.5-inch, Late 2009) Take Apart — Logic Board 181 2010-11-18 5 Tape cables back so they do not get trapped under logic board during reassembly. 6 Peel up foil holding copper square to rear housing. If replacement foil is needed, order Apple part #922-8378.
iMac (21.5-inch, Late 2009) Take Apart — Logic Board 182 2010-11-18 7 Lift logic board up and out of rear housing. Careful! There are 3 cables to disconnect from back side of logic board in next step on next page. Note: Logic board shown in this image has integrated graphics (IG), and therefore no video card bracket at upper right. Reassembly Note: To help properly align logic board into rear housing: • Push up gently with your thumb on lower edge of video card heatsink (if present). • Plug in USB, Ethernet, and/or Mini DisplayPort cables while tightening screws. Important: Always use 2 hands to support logic board and heatsink(s). Handling board incorrectly could flex board and damage chips and circuits. Never handle board by heatsink(s) or metal frame.
iMac (21.5-inch, Late 2009) Take Apart — Logic Board 183 2010-11-18 8 On back side of logic board, disconnect hard drive data cable (19), optical drive data cable (20), and DC power cable (21). Reassembly Note: Observe how optical drive data cable routes around copper pipe on logic board. If this cable is not correctly routed before reinstalling logic board, it may be difficult to properly seat optical drive in rear housing later.
iMac (21.5-inch, Late 2009) Take Apart — Logic Board 184 2010-11-18 Replacement If installing a new replacement logic board, note 4 things: 1 Verify that tamper indicator labels on front and back of heatsink assembly are intact. If labels have been removed or tampered with, logic board is not eligible for exchange. 2 Transfer RAM memory from old logic board to new logic board. 3 Apply new Ethernet ID label (included in box with new logic board) to bottom of stand. 4 Use the Blank Board Serializer tool to set computer’s serial number on new logic board.
iMac (21.5-inch, Late 2009) Take Apart — Video Card 185 2010-11-18 First Steps Remove: • Glass Panel • LCD Panel • Power Supply • Backlight Pressure Wall • Power Supply Pressure Wall • Optical Drive • Optical Drive Fan • IR Board • Logic Board Note: Video card attaches to back side of logic board. Note: Configurations with integrated graphics do not have a video card. Tools • ESD wrist strap • Torx T10 screwdriver • Torx T8 screwdriver Video Card
iMac (21.5-inch, Late 2009) Take Apart — Video Card 186 2010-11-18 Removal 1 Remove T10 screw up near heatsink: (1) 922-7971 2 Remove T8 screws on video card: (2) 922-4723 3 Disconnect cable from logic board. 4 (1) Lift up video card and heatsink and (2) slide card out of slot on logic board.
iMac (21.5-inch, Late 2009) Take Apart — Battery 187 2010-11-18 First Steps Remove: • Glass Panel • LCD Panel • Power Supply • Backlight Pressure Wall • Power Supply Pressure Wall • Optical Drive • Optical Drive Fan • IR Board • Logic Board Note: Battery is located on back side of logic board. Tools • ESD wrist strap • Black stick Battery
iMac (21.5-inch, Late 2009) Take Apart — Battery 188 2010-11-18 Removal 1 Use a black stick to pry battery from socket on back side of logic board. Reassembly 1 Make sure battery socket is open and free of dust. 2 Press battery (922- 8802) into socket with engraved markings (+ side) facing up.
iMac (21.5-inch, Late 2009) Take Apart — Hard Drive Data Cable 189 2010-11-18 First Steps Remove: • Glass Panel • LCD Panel • Power Supply • Backlight Pressure Wall • Power Supply Pressure Wall • Optical Drive • Optical Drive Fan • IR Board • Logic Board Note: Hard drive data cable attaches to back side of logic board. Tools • ESD wrist strap Hard Drive Data Cable
iMac (21.5-inch, Late 2009) Take Apart — Hard Drive Data Cable 190 2010-11-18 Removal 1 Disconnect data cable from hard drive. 2 Disconnect hard drive data cable (#19) from back side of logic board.