29.03.2013 Views

 Apple Technician Guide - tim.id.au

 Apple Technician Guide - tim.id.au

 Apple Technician Guide - tim.id.au

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

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.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!