Apple Mac mini Manual De Usuario

Mac mini (Mid 2010) Symptom Charts — Input/Output Devices 

2010-08-03

1.  Launch System Preferences and 

select Sound/Output options. 

Set speaker balance to the 

middle, then play a sound file. 

Verify that sound is generated 

by the speaker and that the 

sound quality is acceptable.

Yes

Speaker and amplifier 

circuitry OK. Go to step 3.

No

Distortion detected in 

speaker. Go to step 2

2.  Connect external speakers or 

headphones to Headphone 

Out port then play a sound 

file. Verify that sound quality is 

acceptable.

Yes

Suspect bad speaker. Go to 

step 3.

No

Audio CODEC or amplifier 

issue suspected. Replace logic 

board. Retest.

3.  Visually inspect speaker cone 

and speaker connection cable 

for damage. Does the speaker 

have visible damage?

Yes

Replace damaged speaker. 

Retest.

No

Go to step 4.

4.  Install known-good speaker. 

Verify that sound quality 

improves.

Yes

Speaker bad. Replace speaker 

and retest. 

No

Suspect speaker amplifier. 

Replace logic board.

Audio
•  No audio from speaker.
•  Audio from speaker distorted

1.  Launch System Preferences and select Sound/

Output options. Verify that the sound output 

option is set to system’s internal speaker. 

2.  Launch System Preferences and select Sound/

Output options. Verify that the ‘Output Volume’ 

setting is set above the minimum level and that 

the ‘mute’ option is not selected. 

3.  Launch System Preferences and select Sound/

Output options. . Verify that ‘Balance’ is set to 

middle position

4.  Reset PRAM.
5.  Go to Deep Dive.