Apple MC408LL Apple Technician Guide - Page 64

Deep Dive Check 1. Optical drive should perform a single reset sequence. Is optical drive constantly seeking or cycling eject mechanism without an optical disc installed?? 2. Verify media does not exceed maximum thickness specification Using known good CD and DVD media, does media spin without optical drive scraping edge or surface of media? 3. Noise when spinning discs before mounting on the desktop and reading data is normal. Disc spin should cease 30 seconds after mounting on the desktop. Is the noise related to disc spin and is it louder than another computer of the same type and drive? Result Yes No Yes No Yes No Action Drive mechanism damaged. Replace optical drive. Go to step 2 Go to step 3 Drive mechanism damaged. Replace optical drive. Go to step 4 Go to step 5 4. Remove the optical drive and reseat the drive into it's drive mounting bracket. Reinstall the drive and verify if the drive is still noisy. 5. Noise when ejecting media is normal. Eject known good media and listen to noises. Is the noise related to eject activity and is it louder than another computer of the same type and drive?. Yes Drive mechanism damaged. Replace optical drive. No Optical drive not mounted correctly. Issue resolved Yes Drive mechanism damaged. Replace optical drive. No Noise not related to optical drive. Check for hard drive noise or fan noise. Code J05 J05 J04 J04 2010-08-03 Mac mini (Mid 2010) Symptom Charts - Mass Storage 64