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== Description ==
==Description==
<div style="float:right">[[File:KES-400A-lateral-top.jpg|400px|thumb|left|KES-400A - lateral-top]]</div>
<div style="float:right">[[File:KES-400A-lateral-top.jpg|400px|thumb|left|KES-400A - lateral-top]]</div>


[[KES-400A]] is the laser mounted in [[KEM-400AAA]] slide, in Blu-Ray Drive model [[BD-400]] with daughterboards [[BMD-001]], [[BMD-002]], and [[BMD-003]]. Used in [[CECHAxx]], [[CECHBxx]], [[CECHCxx]], [[CECHExx]] [[CECHGxx]] PS3 models (all retail Fat PS3's manufactured before october 2007)
[[KES-400A]] is the laser mounted in [[KEM-400AAA]] slide, in Blu-Ray Drive model [[BD-400]] with daughterboards [[BMD-001]], [[BMD-002]], and [[BMD-003]]. Used in [[CECHAxx]], [[CECHBxx]], [[CECHCxx]], [[CECHExx]] [[CECHGxx]] PS3 models (all retail Fat PS3's manufactured before october 2007)


It has a single can with the CD, DVD, and blu-ray laser diodes inside.  The outgoing and return beams are separated by a pair of polarizing beam-splitter cubes.  The only moving parts are a lens on a micro stepper motor controlled linear stage, and the objective lens.
It has 1 lens with 2 laser diodes, one for CD/DVD and one for BluRay. It was infamouslly known for being prone to failure, this failure was caused by a mobile "glass prisma" that "bounces" the two laser beams (it works as a mirror located in between the laser diode and the disc surface), after this model the mobile part was removed and the laser beams are separated by using 2 different lenses.
 
I (lasersam) am not sure what the above paragraph refers to.  The pickup in the photos has a single laser diode can with the CD, DVD, and blu-ray diodes inside, and a lens on a single micro-stepper linear stage.
 
Note that most of the photos on this page were taken from http://repairfaq.org/sam/Blu-ray/site1/ and are copyeight &copy; Leslie Wright and Samuel Goldwasser.


== Gallery ==
Most of the photographs and diagrams Courtesy of Leslie Wright and Samuel Goldwasser ([[User:Lasersam|lasersam]]) --- (http://repairfaq.org/sam/Blu-ray/site1/)
<GALLERY>
<GALLERY>
File:KES-400A - top.jpg|KES-400A - top
File:KES-400A - top.jpg|KES-400A - top
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File:KES-400A-laser-pinout.jpg|KES-400A - laser diode pinout
File:KES-400A-laser-pinout.jpg|KES-400A - laser diode pinout
</GALLERY>
</GALLERY>
* '''More Information: http://repairfaq.org/sam/Blu-ray/site1/'''


==Other Sony devices with a KES-400A laser ==
==Other Sony devices with a KES-400A laser ==
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