Sony SAL70200G (serv.man2) Service Manual ▷ View online
HELP
SAL70200G (2.8/70-200 G) (70-200mm F2.8 G)
HELP43
Selection of focus guide roller (2 group move frame block)
1.
Install the focus guide roller of which diameter is smaller than the dimension described on the outer tube by 2 size and confirm that 2
group move frame block moves smoothly (operation feeling) without play.
In case of “OK”: The selection is finished.
In case of “NG”: Proceed to step 2.
In case of “NG”: Proceed to step 2.
2.
Insert the 2 group move frame block in the outer tube and align the focus guide pin installation part (flat part) of 2 group move frame
block with the 2nd cam groove of outer tube.
3.
Install the focus guide pin to the focus guide roller.
4.
Hold the screw portion of focus guide pin with tweezers and push the screw head side to the focus guide pin installation part (flat
part).
5.
When moving the 2 group move frame block from the infinite end to the near end, if the focus guide roller moves smoothly without
play, it is defined as the “the same focus guide roller as the groove width”.
6.
Select the focus guide roller of which diameter is smaller by 2-size than the focus guide roller with the same size as the groove width.
2nd cam groove
2nd cam groove
Outer Tube
Location of
description of
the 2nd cam
groove width
description of
the 2nd cam
groove width
Location of description of
the 2nd cam groove width
the 2nd cam groove width
Focus Guide Roller,
Focus Guide Pin
Focus Guide Pin
Outer Tube
2nd cam groove
2 Group Move
Frame Block
Frame Block
2 Group Move
Frame Block
Frame Block
Focus Guide Roller,
Focus Guide Pin
Focus Guide Pin
Focus Guide Roller,
Focus Guide Pin
Focus Guide Pin
Focus guide pin installation part
(flat part) of 2 group move frame
block
(flat part) of 2 group move frame
block
HELP
SAL70200G (2.8/70-200 G) (70-200mm F2.8 G)
HELP44
Selection of focus guide roller (3rd lens barrel)
1.
Install the focus guide roller of which diameter is smaller by 1-size than the dimension of 3rd cam groove described on the outer tube
and confirm that the 3rd lens barrel moves smoothly (operation feeling) without play.
In case of “OK”: The selection is finished.
In case of “NG”: Proceed to step 2.
In case of “NG”: Proceed to step 2.
2.
Re-assemble the 3rd lens barrel at the position where it is rotated 180
° with respect to the outer tube in the arrow direction and
confirm the operation feeling.
In case of “OK”:
The selection is finished.
In case of “NG”:
If the operation feeling is better than in step 1, proceed to step 2.
In case of “NG”:
If the operation feeling is worse than in step 1, turn back the 3rd lens barrel 180
° with
respect to the outer tube and proceed to step 3.
3.
Select the focus guide roller of which diameter is smaller by 2-size than the described dimension.
Focus Guide
Roller
Roller
Focus Guide
Roller
Roller
Focus Guide
Pin
Pin
Outer Tube
Focus Guide
Pin
Pin
3rd cam groove
Location of description
of 3rd cam groove
dimension
of 3rd cam groove
dimension
Focus Guide
Roller
Roller
Focus Guide
Roller
Roller
Focus Guide
Pin
Pin
Focus Guide
Pin
Pin
Outer Tube
3rd Lens Barrel
HELP
SAL70200G (2.8/70-200 G) (70-200mm F2.8 G)
HELP45
Selection of 4th guide roller (4th lens barrel)
1.
Install the 4th guide roller of which diameter is smaller by 1-size than the dimension described on the outer tube and confirm that the
4th lens barrel moves smoothly (operation feeling) without play.
In case of “OK”:
The selection is finished.
In case of “NG”:
Proceed to step 2.
2.
Re-assemble the 4th lens barrel at the position where it is rotated 180
° with respect to the outer tube in the arrow direction and
confirm the operation feeling.
In case of “OK”:
The selection is finished.
In case of “NG”:
If the operation feeling is better than in step 1, proceed to step 3.
In case of “NG”:
If the operation feeling is worse than in step 1, turn back the 4th lens barrel 180
° with
respect to the outer tube and proceed to step 3.
3.
Select the 4th guide roller of which diameter is smaller than the described dimension by 2 size.
4th Guide
Roller
Roller
Outer Tube
4th cam groove
4th Guide
Roller
Roller
4th Lens Block
Guide Pin
Guide Pin
4th Lens Block
Guide Pin
Guide Pin
Location of description
of 4th cam groove
dimension
of 4th cam groove
dimension
4th Guide
Roller
Roller
4th Guide
Roller
Roller
4th Lens Block
Guide Pin
Guide Pin
4th Lens Block
Guide Pin
Guide Pin
Outer Tube
4th Lens Barrel
HELP
SAL70200G (2.8/70-200 G) (70-200mm F2.8 G)
HELP46
Adhesive bond (B-40):
J-6082-614-A
Adhesive bond (LOCTITE 460)
Note:
Use the adhesive bond (LOCTITE 460) or the equivalent
Do not use the instant glue that becomes white when dried.
Grease (G-85):
J-6082-626-A
1.
Install the rear light shield barrel to the mount and tighten it with four screws to which tips two drops of adhesive bond (B-40) are
applied.
2.
Apply two drops of adhesive bond (LOCKTITE 460) to the tip of stopper screw and tighten the stopper screw.
3.
Apply the grease (G-85) to the indicated portion of mount.
4.
Install the lens mount block to the outside barrel, apply two drops of adhesive bond (LOCTITE 460) to the tips of four screws and
tighten the screws.
Note:
Fix the flexible BL PWB and lead wires to the grooves of outside barrel at two locations, threading through the outer
diameter. And fix them with two polyester tapes (black) 10mm.
Apply the adhesive
bond (B-40)
bond (B-40)
Mount
Rear Light
Shield Barrel
Shield Barrel
Apply the adhesive
bond (B-40)
bond (B-40)
Apply the adhesive
bond (B-40)
bond (B-40)
Apply the adhesive
bond (LOCTITE 460)
bond (LOCTITE 460)
Apply the
grease (G-85)
grease (G-85)
Back side of mounting
claw 3 locations
claw 3 locations
Stopper Screw
Outside Barrel
Polyester Tape
(Black) 10mm
(10X50mm)
(Black) 10mm
(10X50mm)
Polyester Tape
(Black) 10mm
(10X50mm)
(Black) 10mm
(10X50mm)
Lead wires
Flexible BL
PWB
PWB
Groove
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