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Hitachi GDR-3120L Xbox 360 DVD Drive Disassembly
Use this how-to tutorial to replace a laser or install a new lid or even swap out the PCB


 Copyright Notice: All rights reserved Copyright 2005 Llamma Corp.  This document and associated photos and all content at llamma.com may not be reproduced without written permission from the author(s).  This means you may not re-post at another site, sell these documents on eBay or reproduce in any form.  Our articles are written with the intention of them being read at our site.  Feel free to link and use any one photo from any of our articles for the purpose of linking. 

In this tutorial we will completely disassemble the drive itself.  This presumes you have already disassembled your 360 to get to the drive.  Once the drive is in your hands take a look at the photos below.  And keep in mid if you are delving in to this just to replace the laser or just the PCB some of the steps will not be necessary. 

 

  Hitachi GDR-3120L Xbox 360 DVD Drive
The Hitachi GDR-3120L has shipped with numerous firmware revisions during its tenure.  Auto-flashers and scripted firmware tools have made firmware modding the Hitachi very easy.  But, unlike the Samsung drive, it is possible to brick your Hitachi drive if care is not taken to ensure you are following the correct procedures.

Some revisions include: 46DH, 47DG, 47DJ, 59DJ ,78FK

 

 

 

hitachi_disassembly 001.jpg (29677 bytes) The drive beckons you...  take me apart.  you used to have a working xbox 360 and now you get disc read errors.. open me OPEN ME!
hitachi_disassembly 004.jpg (27248 bytes) You'll find two sets of screws on the bottom of the drive, ones in green are for the top lid the ones in blue are for the bottom lid.
hitachi_disassembly 008.jpg (40312 bytes) Take off the outside four screws and you can remove the top lid
hitachi_disassembly 011.jpg (59191 bytes) Two more and the bottom lid comes off too.  Notice the three white ribbon cables attaching to the circuit board.  We will be removing all those, only one of them has a clasp to release before removing the cable.  All the narrow width cables just slide in and out of their connector, but the wide one has a clasp to release prior to removal. 
hitachi_disassembly 015.jpg (63192 bytes) Removing the circuit board, you find a wide ribbon cable with a brown clip.  Run your fingernail down the edge and pull it in the direction that the cable will be leaving the connector.  The brown clip will pop free on one side repeat the removal procedure on the other side of the clip. and the cable will slide out with little resistance.
Remove this one from the connector.
hitachi_disassembly 018.jpg (67613 bytes) The cable on the left in this photo is disconnected.  Notice the wide cable we disconnected a couple steps is still connected.  At this point I recommend also disconnecting the cable at the laser end as well.  
hitachi_disassembly 019.jpg (57077 bytes) We find that the rear of this cable is connected with some tape once removed it leaves the cable connected to the laser.  Alternatively you can leave this cable taped to the board and just disconnect at the laser end as described above.
hitachi_disassembly 020.jpg (57782 bytes) The board removed
hitachi_disassembly 028.jpg (46540 bytes) Bottom view of the front of drive - notice the white plastic piece just up and to the left of the gray circle in the middle of the black plastic.
hitachi_disassembly 027.jpg (48006 bytes) Slide it to the right and the tray pops out.
  Gently pull the tray out the rest of the way. You can opt to leave the tray in for most repairs.
hitachi_disassembly 033.jpg (45981 bytes) You'll note it stops at the end, these are the stops that are hitting.
hitachi_disassembly 031.jpg (43168 bytes) Square up with your thumbs
hitachi_disassembly 032.jpg (43269 bytes) Give her a push like you mean it
hitachi_disassembly 034.jpg (54704 bytes) Its off
hitachi_disassembly 036.jpg (54387 bytes) Bottom view, notice that the laser in the middle of the drive rides on two rails one gray plastic and the other silver.  We will be removing the silver one.
hitachi_disassembly 037.jpg (55020 bytes) Loosen this screw
hitachi_disassembly 053.jpg (54548 bytes) Push in on this spring loaded white plastic piece and pull up to release the laser
hitachi_disassembly 038.jpg (56876 bytes) grab on
hitachi_disassembly 039.jpg (57987 bytes) lift out
hitachi_disassembly 041.jpg (60529 bytes) Be sure to lay it down lens up.
hitachi_disassembly 042.jpg (38991 bytes) To remove the motor we are using a T8 driver.
hitachi_disassembly 044.jpg (57848 bytes) Three screws.
hitachi_disassembly 046.jpg (63205 bytes) Its out.
hitachi_disassembly 047.jpg (63011 bytes) Note that the motor can come apart, its normal and only held on by a magnet.
hitachi_disassembly 049.jpg (64433 bytes) Don't loose the two little springs!
hitachi_disassembly 050.jpg (61104 bytes) There is one spring at either end of the motor.
  This is as far as we are going to disassemble.  The re-assembly steps are the reverse of above.

-Llamma
-Rhino

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Microsoft, Xbox, and the Xbox logos are registered trademarks or trademarks of Microsoft Corp.  Llamma.com and Xbox-Repair.net are in no way affiliated with Microsoft.  All references to Modchips, Linux and any other forms of xbox modifications are done for the purpose of writing and testing interoperable software as allowed under Sect. 1201 (f) Reverse Engineering exception of the DMCA.  This site does not condone the illegal copying of games.  All advice/information is provided as is without warranty to accuracy. Do not consider any comments as legal advice, I am not a lawyer. All references to Mod chips should be taken as hypothetical in nature, actually installing a mod chip may be illegal. In simple terms don't sue me if you mess up on your own or with my help. Make your own decisions do the research determine what is legal and what is not, I take no responsibility for your actions.  
All photos and content copyright Llamma Corp. 2002
-2005

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