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Lift the inner edge of the optical drive and maneuver its connector past the GPU frame attached to the logic board.
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Carefully pull the optical drive off its mounting pins on the right side of the outer case to gain clearance for disconnecting the optical drive cable.
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Allow the optical drive to hang down as you de-route the optical drive thermal sensor connector from behind the GPU heat sink.
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In the proceeding steps, you will disconnect the following cables:
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SD Board and microphone
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Left/Right Speaker
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Wi-Fi Antenna
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Bluetooth/Ambient Light Sensor/Camera/Left Temperature Sensor, Hard Drive Temperature Sensor and Hard Drive Fan
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CPU Fan/Ambient Temperature and Power Button
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IR Sensor
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Remove the following four screws:
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One 9.3 mm T10 coarse-threaded screw
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One 25 mm T10 coarse-threaded screw
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Two 22 mm fine-threaded screws
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Pull the upper right and lower left corners of the power supply away from the rear case to dislodge the mounting posts attached to the power supply's corners.
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Carefully lift the power supply out of the outer case and rotate it to expose the cable lock as shown, minding the DC-out and AC-in cables still attaching it to the iMac.
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Disconnect the DC-out cable by depressing the locking mechanism on the connector while you pull the connector away from its socket on the power supply.
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Once the locking mechanism has cleared the socket, pull the DC-in connector away from the power supply.
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17等其他人完成本指南。
12条评论
I can’t believe Apple put the PRAM battery there! Prior iMac models had them very easily accessible just behind the LCD screen. I just did a SSD install for someone and was going to replace the battery while I was at it. Not going to take a chance of breaking something in the process.
amiller770 - 回复
Me either. It’s ridiculous. Insures business at the repair center.
Plus it looks like they didn’t even put any testing points on the front of the mainboard. You have to pull the whole mainboard out just to measure the voltage? How do Apple techs deal with a PRAM battery issue? There’s got to be a hidden point somewhere to put a multi-meter on.