K Service Source
K Service Source
Exploded View
External Hard Drive SC
Exploded View |
1 |
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Cover
HDA-to-Case Cable
LED Cable Assembly |
Fan Frame |
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Fan |
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SCSI Select Switch |
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SCSI Select Switch Cable |
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Hard Drive Mechanism |
Power Supply |
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K Service Source
External Hard Drive SC
Take Apart Cover - 1
No preliminary steps are required before you begin this procedure.
Cover Note: This Take Apart chapter applies only to the Apple external hard drive series (20SC, 40SC, 80SC, or 160SC). For Take Apart procedures internal drives, see the manual for the computer that contains the drive.
Take Apart |
Cover - 2 |
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1 Locate the two holding |
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tabs on the rear of the |
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hard drive, inside the |
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ventilation slots. |
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2 |
Using a jeweler’s |
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screwdriver, press in |
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gently on the two |
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holding tabs as you push |
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the cover up slightly. |
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Take Apart |
Cover - 3 |
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3 Locate the four tab holes, |
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two on each side of the |
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hard drive. |
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4 Starting with the rear |
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holes, insert the |
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jeweler’s screwdriver |
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straight into each of the |
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holes. Nudge the cover |
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upward as you release |
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each tab. |
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Note: Prying is not |
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necessary and may damage |
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the case. |
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Take Apart |
Power Supply - 4 |
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Before you begin, remove the cover.
Caution: Review the ESD
Power Supply precautions in Bulletins/
Safety.
Take Apart |
Power Supply - 5 |
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1 Press down on the back |
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of the power supply, |
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push back the power |
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supply tab, and lift the |
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power supply. |
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Take Apart |
Power Supply - 6 |
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Fan
Cable
2 Disconnect the power supply connector from the hard drive
Power Supply mechanism.
Note: On some hard drive mechanisms, the power supply connector is on the opposite side of the hard drive.
3 Disconnect the fan cable.
4 Lift the power supply free.
Power Supply
Connector
Take Apart |
Hard Drive Mechanism - 7 |
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Hard Drive
Mechanism
Before you begin, remove the cover.
Caution: Review the ESD precautions in Bulletins/ Safety.
Hard Drive
Mechanism
Take Apart |
Hard Drive Mechanism - 8 |
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1 Push back the large tab, |
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slide the hard drive |
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mechanism up, and rest |
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it on the edge of the case. |
Tab
Hard Drive
Mechanism
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Take Apart |
Hard Drive Mechanism - 9 |
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2 |
Disconnect the power |
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supply. |
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SCSI Select |
Note: On some hard |
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drive mechanisms, the |
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Switch Connector |
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power supply connector |
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is located on the |
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opposite side of the hard |
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drive. |
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3 Open the end tabs (if |
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present) on the hard |
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drive data cable |
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connector and disconnect |
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Power |
the cable from the hard |
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drive mechanism. |
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Supply |
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Connector |
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HDA-to-Case
Cable
Hard Drive Mechanism
Take Apart |
Hard Drive Mechanism - 10 |
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4 Disconnect the SCSI |
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select switch connector |
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and lift the hard drive |
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mechanism out of the |
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case. |
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Note: Skip the following |
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steps if you are replacing a |
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20 MB or a 160 MB |
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external hard drive. Return |
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these drives to Apple in |
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their original carriers. |
Take Apart |
Hard Drive Mechanism - 11 |
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SCSI Select |
LED Cable |
Switch |
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Edge of 3.5 Drive
Note: Four screws hold the 5.25-inch hard drive along the bottom edge of the carrier.
5Turn the drive over and remove the four screws near the center of the metal carrier. Use this carrier to install the service replacement module.
6Disconnect the LED cable and SCSI select switch from the hard drive mechanism.
Take Apart |
Hard Drive Mechanism - 12 |
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Note: Review “Carrier |
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Removal,” “Modifying 5.25 |
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Drives,” or “Modifying 3.5 |
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Drives” in Additional |
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Procedures before you |
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install the new service |
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replacement drive. |
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