Apple Mac mini Late 2009 (Technician Guide) - Manual (Page 26)

Mac mini (Late 2009) Symptom Charts — Startup and Power 26 2009-11-03
No Video
Unlikely cause: hard drive, optical drive, speakers, camera, microphone
Quick Check
Symptoms Quick Check
No Video
No image. •
Check display connections 1.
Check connections for pin damage. 2.
Reset SMC. 3.
Go to Deep Dive. 4.
Deep Dive: No Video
Check Result Action Code
Verify boot chime present and 1.
fans running when system
powered ON. (Reset SMC and
clear PRAM if necessary for
proper boot up.)
Yes Power ON self test OK. Boot
sequence started.
Go to step 2.
No Go to Won’t Start Up
symptom flow.
Connect supported external 2.
display via mini display port.
Verify whether image appears
on external display when
system is booted.
Yes Video present. Verify system
functionality and return to
user or jump to appropriate
troubleshooting flow.
No Go to step 3.
Connect supported external 3.
display via mini-DVI port. Verify
whether image appears on
external display when system is
booted.
Yes External display detected by
system. Video circuitry on
logic board functional. Return
to customer or jump to
appropriate troubleshooting
flow.
No Replace logic board. Retest. M03