Apple MD094LL/A Manuale Utente

iMac (27-inch, Mid 2010) Symptom Charts — Input/Output Devices 

 2010-09-09

7.  Connect external speakers or 

headphones to audio-out port 

and play a known-good sound 

file. Verify if sound quality is 

acceptable.

Yes

Logic board, internal 

speakers, and audio-out port 

functioning correctly. Return 

system to user.

No

Go to step 8.

8.  Disconnect and carefully 

inspect audio connectors 

assembly and its connection to 

logic board for damage such as 

bent pins or pinched/cut wires.

Yes

Replace damaged audio 

connectors assembly. If issue 

persists, verify if symptom has 

changed.

No

Replace logic board.