Sony SAL70200G Service Manual ▷ View online
HELP
SAL70200G (2.8/70-200 G) (70-200mm F2.8 G)
HELP19
Anti-diffusion agent: (A-20):
J-6082-611-A
1.
Overlay the flexible PWB as shown in the figure below and fix them with the polyester tapes (black) 4mm cut in the specified size.
2.
Apply the anti-diffusion agent (A-20) to the surrounding of tape.
Flexible PWB of MR Sensor Block
Flexible PWB of Stator
DV Encoder Flexible
PC Board
PC Board
DV Encoder Flexible
PC Board
PC Board
Zoom Encoder Flexible
Zoom Encoder Flexible
Polyester Tape (Black)
4mm (4X15mm)
4mm (4X15mm)
Apply the anti-diffusion
agent (A-20)
agent (A-20)
Front Holding Tube Block
Flexible PWB of
ultrasonic motor
(stator)
ultrasonic motor
(stator)
Flexible PWB of
MR sensor block
MR sensor block
MR Sensor Holding Plate
Ver. 1.4 2009.10
The changed portions from
Ver. 1.3 are shown in blue.
HELP
SAL70200G (2.8/70-200 G) (70-200mm F2.8 G)
HELP20
Adhesive bond (B-10): J-6082-612-A
1.
Fix the brush holder to the front holding tube block with two screws and washers tentatively.
Note:
Be careful not to bend the leads of brush.
2.
Set the focus to the infinity end.
3.
Adjust the brush holder so that the curved portion (contact with the flexible board) of A encoder brush comes to the circle portion
(Part R) of DV encoder flexible PC board and tighten firmly two screws.
4.
After performing the [5-7. Focus Brush (A Encoder Brush) Position Adjustment], apply the adhesive bond (B-10) to the head of
screw at two locations.
Brush Holder
DV Encoder Flexible
PC Board
PC Board
Part R of
A encoder brush
A encoder brush
A Encoder Brush
Brush Holder
Screws Several pieces of washer
(The number of washer used differs
depending on the result of adjustment.)
depending on the result of adjustment.)
A Encoder Brush
Set the focus to the infinity
end position
end position
Apply the
adhesive bond
(B-10)
adhesive bond
(B-10)
HELP
SAL70200G (2.8/70-200 G) (70-200mm F2.8 G)
HELP21
Adhesive bond (B-10): J-6082-612-A
1.
Set the focus to the near position.
2.
Assemble the MF detection brush block in the arrow direction as shown in the figure.
Note:
Be careful not to bend the leads of brush.
3.
Move the focus ring by 10mm in the infinity direction.
4.
Slide the MF detection brush block and align the screw hole of MF detection brush block with the front holding barrel.
5.
Tighten two screws and apply the adhesive bond (B-10) to the indicated portions of screw heads.
6.
Adjust the position of flexible PWB, aligning the positioning hole of flexible PWB, and solder it.
7.
Route the harness as shown in the figure and solder it.
Assemble the MF detection
brush block in the arrow direction
brush block in the arrow direction
Soldering
(Harness)
(Harness)
Harness
(Green)
(Green)
Harness
(Black)
(Black)
Apply the adhesive
bond (B-10)
bond (B-10)
Soldering
(Flexible PWB)
(Flexible PWB)
Move the focus ring by 10mm
in the infinity direction
in the infinity direction
Slide the MF detection brush
block and align the screw hole
of MF detection brush block
block and align the screw hole
of MF detection brush block
HELP
SAL70200G (2.8/70-200 G) (70-200mm F2.8 G)
MR Sensor Holding Plate
Be careful not to bend
this part.
this part.
Affix the MR
sensor block
sensor block
MR Sensor Hoding
Plate
Plate
MR Sensor Gap Sheet
Install the slant of MR sensor
gap sheet along the front
gap sheet along the front
Incline the portion A
to the bore side
to the bore side
Affix the MR sensor
block to the portion A,
eliminating a slack
at the portion B.
block to the portion A,
eliminating a slack
at the portion B.
Affix the MR sensor
setting tape
setting tape
Affix the MR sensor
flexible setting tape
flexible setting tape
Portion A
Portion A
Portion B
MR Sensor Block
Bent approx. 3
°
MR Sensor
Holding Plate
Holding Plate
MR Sensor
Holding Plate
Holding Plate
Apply the
anti-diffusion
agent (A-20)
anti-diffusion
agent (A-20)
HELP22
Anti-diffusion agent (A-20): J-6082-611-A
1.
Bend the indicated portion of MR sensor holding plate about 3
°.
2.
Apply the anti-diffusion (A-20) to the indicated circumference of MR sensor holding plate.
3.
Affix the MR sensor flexible setting tape to the indicated portion of MR sensor holding plate.
4.
Affix the MR sensor setting tape to the MR sensor holding plate.
5.
Affix the MR sensor block to the MR sensor holding plate.
6.
Wind the MR sensor gap sheet as shown in the figure.
7.
Install the MR sensor holding plate along the front holding barrel.
8.
Push “portion A” of MR sensor holding plate to the bore.
Affix the MR sensor block to “portion B”, eliminating a slack.
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