 |
|
|
|
|
|
 |
|
||||
 |
 |
 |
 |
 |
|
DVD R+/R-/RW Drive
Page 1
While backing up my hard drive the other day, I stood in awe, in complete amazement... of what kind of tough jobs this little lunch-box sized thing could do. Yes, I am talking about the internal DVD writer that I installed about a year ago on my desktop PC.
I thought I was in a need of upgrade, since this drive couldn't provide enough speed... it took 18 minutes to write a complete DVD-R. So yeah, needless to say, I took it off from the drive bay in the PC cabinet, got my tool kit out, and got right to work!!
It is a internal tray loading Liteon DVD writer.
Tools I used: Just a few screw-drivers of many sizes ranging from 1.0mm to 4.0mm... both the "Phillips" and the "Minus" ones. A pair of scissors came handy also.
CONDITION BEFORE "TAKING APART": WORKING PERFECTLY
CONDITION AFTER "TAKING APART" AND PUTTING IT TOGETHER AGAIN: DOES THIS LOOK LIKE A DVD DRIVE?
Basic Construction: The outer casing was made of iron sheets. Had 16 screws to be removed to take it apart completely. The frame which holds the lens assembly slides out from the iron casing. Only the Printed Circuit Board and the base cover were screwed.
The drive when I just took it out from the desktop.
This is when I opened the base of the drive. Note that the drive is upside down, and just when I opened the drive, you could see the Printed Circuit Board (PCB) clearly. Note the big hole in the middle, that is where the main BUS moves as the lens assembly slides along the parallel shafts (more on this below).
I removed all the screws which were holding the PCB to the outer casing. You can see that there are two BUS cables fixed to the PCB. Taking them apart was a big pain in the neck... it seemed as if they were super glued to each other. But a strong pull was enough to get them out.
Finally, the PCB is a different part now. The top most motor (highlighted in red) pushes the tray out for you to load a disc. The middle motor (highlighted in red) spins the disc, and the bottom motor (highlighted in red) moves the lens assembly up and down. The two parallel shafts (highlighted in blue) are the rails on which the lens assembly moves around.