User Guide

Mac mini (Mid 2010) Symptom Charts — Input/Output Devices 68
2010-08-03
Deep Dive
Check Result Action Code
1. Launch System Preferences and
select Sound/Output options.
Set speaker balance to the
middle, then play a sound le.
Verify that sound is generated
by the speaker and that the
sound quality is acceptable.
Yes Speaker and amplier
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
le. Verify that sound quality is
acceptable.
Yes Suspect bad speaker. Go to
step 3.
No Audio CODEC or amplier
issue suspected. Replace logic
board. Retest.
M09
3. Visually inspect speaker cone
and speaker connection cable
for damage. Does the speaker
have visible damage?
Yes Replace damaged speaker.
Retest.
X09
No Go to step 4.
4. Install known-good speaker.
Verify that sound quality
improves.
Yes Speaker bad. Replace speaker
and retest.
M09
No Suspect speaker amplier.
Replace logic board.
M09
Audio: Built-in Speaker Has No Audio
Quick Check
Symptoms Quick Check
Audio: Built-in Speakers Have No
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.