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DSLR-A100_L2

Coupler Lever Shaft

Coupler Lever Tention (SP)

Coupler Lever

Solder 5 points

G

: G-15

G

: G-115

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DSLR-A100_L2

Rotate the iris ring clockwise, and remove it at the stop position (iris-in end). (Fig. 10-1)
At this time, do not rotate the iris joint gear of the Aperture Unit.

Installation
1. With the Aperture Unit set in the charge position (see "2-1-12. Aperture Unit Charge Position Setting" ), install it on the front frame set.

*

The Aperture Unit has been set in the charge position, if it is not removed.
However, the iris ring must be in the removed state (where the iris joint gear is not rotated).

2. Install the iris ring with it's a punch mark aligned with a line that connects the iris joint gear shaft and the optical axis center. (Fig. 10-1)

*

The Aperture Unit is supplied by being set in the charge position (initial position), but if this position is disordered when the Aperture Unit is
removed, or if the charge position is to be set again, perform as follows.

*

Refer to “2-1-12. Aperture Unit Charge Position Setting” for the confirm method at the charge position.

1. Check that the Aperture Unit is in a free state.
2. After confirming that the Aperture Unit is in a free state, rotate the gear by 3 turns.
3. After rotating the gear by 3 turns, set the Aperture Unit where the holes in the gear and the Aperture Unit coincide. This position is the charge

position.

*

Refer to “2-1-13. Aperture Unit Free Position Setting” for the setting and the confirm method at the free position.

Iris Joint Gear Shaft

Iris Ring

Optical Axis Center

Punch Mark

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DSLR-A100_L2

In a free state, the edge of this spring 
will move up and down about 1 mm if 
the gear is moved a little.

Gear rotating 
direction to make 
the unit free

Gear rotating 
direction to set 
the charge position

Note: The spring is deformed and cannot 

be used if the gear is rotated too 
much from a free state.

If the edge of spring is located downward,
rotate the gear in the arrow direction to
search a free position.

First, check the spring edge position.

In a free state, a hole in the gear almost 
coincides with a hole in the Aperture Unit.

As viewed from gear
(Hole in the gear)

1. Set the Aperture Unit to a free position once, if the gear was rotated accidentally and the charge position is disordered, or if the charge position

was shifted during disassembly. (Fig. 13-1, 13-2, 13-3)

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DSLR-A100_L2

1. The lever must be in a free state when the AF Charge Unit is installed. (Fig. 14-1)

Check the lever of the AF Charge Unit for position.
If it protrudes outside, rotate the gear in the arrow direction.

Gear

When the lever becomes a free state, it will 
retract as shown.