Kowa K9L48B, Service Manual, Page: 21 / 60

GG-09001 Edition 1.3
- ２１ -
6-5 Replacing optical head unit fan
①
Remove the tying bands.
(Cut off other tying bands that connected to other cables as necessary.)
②
Disconnect 3 cables from the optical head unit main PCB.
③
Undo 2 screws and remove the fan unit from the optical head unit.
④
Remove all fine-shuts (K9L39 #600) from the fan unit of the optical head unit.
⑤
Undo 2 screws and separate the upper and lower segments of the fan unit.
⑥
Undo the remaining 2 screws, disassemble the lower segment of the fan unit, and remove one
of the fans (
*K9L45-5087
).
JM19 JM30
FAN
JM13
FD/WD SW