iMac (21.5-inch, Late 2009) — Updates 9
2010-11-18
Updates
Updated 18 November 2010
SD Board renamed SD Card Reader throughout document.
Troubleshooting
• General Information: Wireless Troubleshooting: added more kBase links.
• General Information: Common Reset Procedures: rewrote SMC section.
Take Apart
• General Information:
• Required Tools: added Thermal paste syringe (Apple part #922-9625) for camera;
• removed commercial screen cleaning products.
• Memory: Removal Step 2: added “For better grip, attach double-stick tape to ends of tabs.”
• Glass Panel:
• rewrote Removal Step 1;
• changed cleaning procedures to indicate microber cloth should only be dampened
with water (rather than isopropyl alcohol or commerical screen cleaning products).
• Camera: added reassembly instructions to transfer or add thermal paste between camera
and rear housing.
• LCD Panel:
• added reassembly note not to overtighten LCD screws, which could cause light
leakage after reassembly;
• added new section “Handling LCD Panel”.
• Hard Drive:
• added image of screw pins; corrected screwdriver size to T8 for 922-9136 and 922-7001
• corrected image of Western Digital temp sensor cable placement.
• Hard Drive Sensor Cable:
• corrected image of Western Digital temp sensor cable placement.
• Audio Cable: added reassembly note that plugging in earbuds can help keep cable aligned
while tightening screws.
• Logic Board:
• added note that logic board is much easier to reinstall if memory is removed;
• added replacement foil strip part #922-8378;
• added reassembly notes to help align logic board: push up gently with your thumb on
lower edge of video card heatsink (if present), and plug in USB, Ethernet, and/or Mini
DisplayPort cables while tightening screws.
• Optical Drive Pressure Wall: added chapter.
• Rear Housing: added reassembly instructions to transfer or add thermal paste between
camera and rear housing.
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