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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.)
Zooming cam
Zooming
cam gear
Notch in the optical
base plate.
6 – 15
5. High voltage section
Clean the MC case, and the TC/SC case every 50K copies. Clean the
screen grid, the charging plate (saw teeth), and the TC/SC wire every
50K copies, and replace them every 100K copies.
5-1. Main charger (MC) unit
1
Open the front cover.
2
Hold the MC unit lock section, and pull out the MC unit.
3
A
B
Loosen screws
and
, and remove screen grid
(When attaching the screen grid, tighten screw
F
ing position
of grid holder
F
marking position
of MC holder
A
B
E
.
B
until the mark-
C
in the above figure is aligned with
D
A
, and tighten screw
.)
E
A
F
B
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