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 Apple Technician Guide MacBook Pro (15-inch, Mid ... - tim.id.au

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2010-08-05<br />

Deep Dive<br />

Check Result Action Code<br />

1. Verify if optical drive is<br />

constantly seeking or cycling<br />

eject mechanism without an<br />

optical disc installed. Optical<br />

drive should perform only one<br />

reset sequence and rest <strong>id</strong>le,<br />

ready for media.<br />

2. Insert known good data CD.<br />

Check that media is free to<br />

spin without optical drive<br />

scraping edge or surface of<br />

media. Verify disc does not<br />

exceed maximum thickness<br />

specification.<br />

3. Initial disc handling noise is<br />

normal. Disc spinning and<br />

head seek indicates disc is<br />

mounting to desktop. Seek<br />

noise should settle down once<br />

mounted. Verify if noise is<br />

above normal level and related<br />

to seek activity.<br />

4. Disc spin should cease 30<br />

seconds after mounting data<br />

CD on OS desktop. Verify if the<br />

noise is related to disc spin.<br />

5. Remove the optical drive and<br />

check for correct seating of the<br />

brackets on the optical drive<br />

and in the top case. Reinstall<br />

drive in unit and retest. Verify if<br />

drive is still noisy.<br />

6. Eject known good data optical<br />

media. Disc handling noise<br />

should be one pop of disc<br />

from motor hub and a motor<br />

gear sound driving disc out<br />

of optical drive. Verify if noise<br />

is above normal level and<br />

related to disc eject activity or<br />

multiple eject attempts.<br />

Yes Replace optical drive if<br />

continuous activity occurs<br />

with no disc installed.<br />

No Continue and verify with<br />

media, go to step 2.<br />

Yes Internal mechanical<br />

interference is affecting<br />

rotational spin of media,<br />

replace optical drive.<br />

No Continue and verify with<br />

media, go to step 3.<br />

J04<br />

J04<br />

Yes Replace optical drive. J04<br />

No Go to step 4.<br />

Yes Go to step 5.<br />

No Go to step 6.<br />

Yes Go to step 6.<br />

No Issue resolved. Optical drive<br />

was not properly mounted in<br />

enclosure. (Possible physical<br />

damage to optical drive.)<br />

(J05)<br />

Yes Replace optical drive. J02<br />

No Go to step 7.<br />

<strong>MacBook</strong> <strong>Pro</strong> (<strong>15</strong>-<strong>inch</strong>, <strong>M<strong>id</strong></strong> 2010) Symptom Charts — Mass Storage 84

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