Apple imac 20 inch early 2008 User Manual
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Page 101
iMac (20-inch Early 2008) Take Apart — Ambient Temperature Sensor Cable 101 Ambient Temperature Sensor Cable Tools The only tool required for this procedure is a black stick (or other nonconductive plastic or nylon tool). Preliminary Steps Before you begin, remove the following:A • ccess door Glass Pane • l F • ront bezel LCD display pane • l Speaker, left • Part Location
Page 102
iMac (20-inch Early 2008) Take Apart — Ambient Temperature Sensor Cable 10 2 Removing the Ambient Temperature Sensor Cable Note the cable routing from the left speaker to the logic board. The cable tucks under the 1. tab on the CPU fan. Disconnect the cable from the sensor board on the speaker and the connector on the logic 2. board. Note: The cable is offered separately as a service part. .
Page 103
iMac (20-inch Early 2008) Take Apart — Ambient Temperature Sensor Cable 10 3 Replacing the Ambient Temperature Sensor Cable Connect the cable to the sensor board on the left speaker and to the logic board.1. Replace the front bezel.2. Clean and replace the glass panel3. . Note: This step is very important. Follow the procedures to ensure the glass is clean and free of particles. Replace the access door 4. .
Page 104
iMac (20-inch Early 2008) Take Apart — Ambient Temperature Sensor 10 4 Ambient Temperature Sensor Tools A black stick to remove the sensor off the speaker• Preliminary Steps Before you begin, remove the following: A • ccess door Glass Pane • l F • ront bezel LCD display pane • l Speaker, left • Part Location
Page 105
iMac (20-inch Early 2008) Take Apart — Ambient Temperature Sensor 10 5 Removing the Ambient Temperature Sensor 1. Disconnect the ambient temperature sensor cable from the logic board, and remove the left speaker if you haven’t done so already. Disconnect the ambient temperature sensor cable from the left speaker.2. Use a black stick to remove the sensor from the adhesive on the side of the speaker.3.
Page 106
iMac (20-inch Early 2008) Take Apart — Ambient Temperature Sensor 10 6 Replacing the Ambient Temperature Sensor Attach the temp sensor to the left speaker. Connect the temperature sensor cable to the 1. sensor. Replace the left speaker and speaker screw. Connect the temperature sensor cable to the logic board connector.2. Replace the display panel3. . Replace the front bezel. 4.
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iMac (20-inch Early 2008) Take Apart — Ambient Temperature Sensor 10 7 Clean and replace the glass panel5. . Note: This step is very important. Follow the procedures to ensure the glass is clean and free of particles. Replace the access door 6. .
Page 108
iMac (20-inch Early 2008) Take Apart — Optical Drive Fan 108 Optical Drive Fan Tools No tools are required to remove the optical drive fan.• Preliminary Steps Before you begin, remove the following: A • ccess door Glass pane • l F • ront bezel LCD display pane • l Optical driv • e Part Location
Page 109
iMac (20-inch Early 2008) Take Apart — Optical Drive Fan 109 Removing the Optical Drive Fan With a black stick, pry off the metal clip covering the optical cable connector. 1. Disconnect the optical flex cable connector from the audio board.2. 3. Disconnect the fan cable from the logic board (to the right of the optical cable connector).
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iMac (20-inch Early 2008) Take Apart — Optical Drive Fan 11 0 Lift the fan off the guide posts on the rear housing. 4.