Справочник Пользователя для Apple LATE 2009

Mac mini (Late 2009) Symptom Charts — Input/Output Devices 

 2009-11-03

FireWire external drive not 

• 

recognized
FireWire printer not recognized

• 

For external FireWire drives, make sure any 

external power source is plugged in and 

operating to isolate a power issue with the 

device.
Test with a known good FireWire device to isolate 

a failed peripheral issue. 
Test with a known good FireWire cable to isolate 

a FireWire cable issue.
Ensure that all available Software Updates have 

been applied to the computer for access to the 

latest bug fixes.

Unplug all FireWire devices 

from the computer. Start the 

computer and reset PRAM. 

Reconnect the FireWire device 

in question. Is the FireWire 

device recognized?

Yes

Issue resolved

No

Possible logic board failure. 

Go to step 2

Use a known good FireWire 

cable with a known good 

FireWire device (another 

Mac in FireWire Target Disk 

mode is good). Is this device 

recognized?

Yes

Try the FireWire device in  

question with a known good 

computer of the same make 

and model. Go to step 3

No

FireWire not recognized. 

Replace main logic board.

Is the FireWire device 

recognized on a known good 

computer of the same make 

and model?

Yes

Test the FireWire device with 

a known good cable on user’s 

computer. Go to step 4

No

FireWire device may need 

additional power. Use a 

powered FireWire hub. Go to 

step 5