Toshiba e-STUDIO556 Service Manual page 199

4.4 Laser Optical Unit (e-STUDIO556/656/756/856)
4.4.1 Laser unit cooling fan
(1) Take off the top right cover, right upper cover,
right center cover and right rear cover.
( P.4-2 "4.1.3 Top right cover",
 P.4-3 "4.1.7 Right upper cover",
 P.4-3 "4.1.8 Right center cover",
 P.4-4 "4.1.9 Right rear cover")
(2) Remove 1 screw, loosen 10 screws and take
off the plate cover.
(3) Remove 1 screw fixing the Laser unit.
(Not required for e-STUDIO756/856)
(4) Remove 2 screws and take off the laser unit
fixing stay.
(5) Disconnect 1 connector and remove 2
screws to take off the laser unit cooling fan.
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Fig. 4-96
Laser unit fixing stay
Fig. 4-97
Laser unit cooling fan
Fig. 4-98
e-STUDIO556/656/756/856/557/657/757/857
4 - 35
Plate cover
DISASSEMBLY AND REPLACEMENT
4