Apple MD094LL/A Manuale Utente

iMac (27-inch, Mid 2010) Symptom Charts — Mass Storage 

 2010-09-09

4.  With known-good optical drive 

installed, test for media inject/

eject. Verify if drive accepts and 

ejects known-good media.

Yes

Known-good optical drive 

resolved inject/eject issue. 

Replace optical drive.

No

Go to step 7.

5.  Inspect optical drive slot during 

disc insert/eject. Verify if discs 

can be inserted easily.

Yes

Go to step 6.

No

Verify correct optical drive 

bezel alignment with 

enclosure. Reseat optical drive 

then retest. If issue persists, 

replace optical drive.

6.  With known-good optical 

media (Install DVD), test for 

media inject/eject. Verify 

if drive accepts and ejects 

known-good media.

Yes

Media issue. No repair 

necessary. Suggest user 

investigate use of different 

media.

No

Go to step 3.

7.  Replace SATA cable then test 

for media inject/eject. Verify if 

drive injects and ejects known-

good media.

Yes

SATA cable resolved issue. 

Return system to user.

No

SATA cable verified or 

replaced, and optical drive 

verified or replaced. Replace 

logic board and retest.

Unlikely cause: LCD panel, power supply, fans, speakers, camera, microphone

Drive Read/Write Data Error
•  Errors when writing optical 

media.

•  Errors when reading optical 

media.

•  Hang when accessing or 

preparing to write data.

1.  Test optical media in a known-good optical drive 

in the same type of computer to rule out media 

issue.

2.  Check with known-good discs like the Install DVD 

that came with the computer.

3.  For write issues, check with known-good media 

that performs well in a known-good optical drive 

in the same type of computer.