Apple Technician Guide - tim.id.au
Apple Technician Guide - tim.id.au
Apple Technician Guide - tim.id.au
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2010-08-05<br />
Optical Drive Noisy<br />
Unlikely c<strong>au</strong>se: LCD, speakers, fan, camera, microphone<br />
Quick Check<br />
Symptom Quick Check<br />
Optical Drive Noisy<br />
• Noise during boot<br />
• Noise during operation<br />
• Noise when drive is copying or<br />
writing data<br />
Deep Dive<br />
1. Test optical media in another drive of the same<br />
type in same type of computer to rule out media<br />
issue.<br />
2. Check with known-good discs. Install discs that<br />
came with the computer.<br />
3. Check to see if noise occurs without media in<br />
the drive. If so, check for hard drive (H06) and fan<br />
(M18) c<strong>au</strong>sed noise.<br />
Check Result Action Code<br />
1. Is optical drive constantly<br />
seeking or cycling eject<br />
mechanism without an optical<br />
disc installed? Optical drive<br />
should perform only one reset<br />
sequence and rest <strong>id</strong>le, ready<br />
for media.<br />
2. Insert known good data CD.<br />
Is media free to spin without<br />
optical drive scraping edge or<br />
surface of media? Verify disc<br />
does not exceed maximum<br />
thickness specification.<br />
3. Initial disc handling noise is<br />
normal. Disc spinning and<br />
head seek indicate disc is<br />
mounting to desktop. Seek<br />
noise should settle down<br />
once mounted. Is noise above<br />
normal and related to seek<br />
activity?<br />
Yes Continue and verify with<br />
media, go to step 2.<br />
No Replace optical drive if<br />
continuous activity occurs<br />
with no disc installed.<br />
Yes Continue and verify with<br />
media, go to step 3.<br />
No Internal mechanical<br />
interference is affecting<br />
rotational spin of media,<br />
replace optical drive.<br />
MacBook Pro (15-inch, 2.53 GHz, M<strong>id</strong> 2009) Symptom Charts — Mass Storage 91<br />
J04<br />
J04<br />
Yes Replace optical drive. J04<br />
No Go to step 4.