Lens Unit Replacement - Sharp SF-2020 Service Manual

4
Manually turn the zooming can drive gear to fit the zooming cam
drive gear hole and No. 4/5 mirror drive unit base hole B.
5
Install No. 4/5 mirror drive shaft unit and the rack.
* When installing the rack, be sure to fit No. 4/5 mirror unit projection
with No. 4/5 mirror drive shaft unit hole.
No. 4/5 mirror
drive shaft unit
Pin
Hole Zooming cam
drive gear
No. 4/5 mirror
drive unit base
Hole B
Zooming cam drive gear
Hook
6
Loosen the zooming cam screw, and fit the mark of zooming cam
drive gear with the mark of No. 4/5 drive shaft.
∗Do not move the zooming cam gear at this time.
Mark
* After this procedure, be sure to perform the optical system adjust-
ments (focus adjustment, etc.). (Refer to [7] ADJUSTMENTS.)

7) Lens unit replacement

A. Lens removal
1
Remove the lens wire. (Refer to the procedure of "A. Lens wire
removal" in 16) Lens wire replacement.)
2
Hold the lens drive shaft with radio nippers and remove it.
3
Remove the lens drive shaft from the notch in the optical base
plate. The lens unit is removed at that moment.
B. Lens unit installation
Reverse the disassembly procedures. (Refer to (6)-B. Lens wire
stretching.)
6 – 15
Zooming cam
Zooming
cam gear
Notch in the optical
base plate.