Sony SAL70200G (serv.man2) Service Manual ▷ View online
1-3
SAL70200G (2.8/70-200 G) (70-200mm F2.8 G)
1-5.
TROUBLESHOOTING
1-5-1. Aperture Trouble
NG
Check operation of the
aperture connect lever.
Replace the aperture connect
lever or main spring.
Replace the outer tube block.
Perform the aperture
diameter adjustment.
(See page 5-17.)
Perform the aperture
diameter check.
(See page 5-14.)
NG
Check the aperture
operation of aperture
operate plate unit and
aperture blade unit.
OK
OK
OK
Function NG
F No. NG
Aperture trouble
Replace the above mentioned
parts.
NG
NG
NG
END
OK
Perform the aperture
diameter check.
(See page 5-14.)
1-4
SAL70200G (2.8/70-200 G) (70-200mm F2.8 G)
1-5-2. Zoom Trouble
NG
OK
OK
OK
OK
Function NG
Position NG
Check the position
and deformation
at the tip of
the zoom brush.
Adjust the position, or
replace the zoom brush.
Check board pattern
of the zoom flex pattern.
Clean the board pattern
of zoom flex pattern.
Zoom trouble
Replace the zoom encoder
flexible.
Perform the
zoom brush position
check/adjustment.
(See page 5-32.)
NG
NG
NG
NG
END
OK
Disassembly and check
the zoom relation parts.
the zoom relation parts.
Replace the defective part
or apply the grease.
Check the operation
again.
1-5
SAL70200G (2.8/70-200 G) (70-200mm F2.8 G)
Check the operation
again.
Replace the defective part
or apply the grease.
OK
NG
OK
OK
OK
OK
Function NG
Position NG
Focus trouble
Replace the defective part
or apply the grease.
Check the focus driving
tube block.
Check the lens unit assy.
NG
NG
NG
NG
NG
END
OK
Check the position
and deformation
at the tip of
the focus brush.
Check the position, or
replace the focus brush.
Check board pattern
of the focus flex pattern.
Clean the board pattern.
Replace the DV encoder
flexible PC board.
Perform the
focus brush position
check/adjustment and
pattern check.
(See page 5-35.)
1-5-3. Focus Trouble
2-1
SAL70200G (2.8/70-200 G) (70-200mm F2.8G)
Cut and remove the part of gilt
which comes off at the point.
(Be careful or some
pieces of gilt may be left inside)
which comes off at the point.
(Be careful or some
pieces of gilt may be left inside)
2. DISASSEMBLY
NOTE FOR REPAIR
• Make sure that the flat cable and flexible board are not cracked of bent at the terminal.
Do not insert the cable insufficiently nor crookedly.
• When remove a connector, dont’ pull at wire of connector. It is possible that a wire is snapped.
• When installing a connector, dont’ press down at wire of connector.
It is possible that a wire is snapped.
• Do not apply excessive load to the gilded flexible board.
UNIVERSAL WRENCH
In case of the following notches or holes are located in the lens block, etc during disassembling/
assembling the lens, Use the universal wrench.
assembling the lens, Use the universal wrench.
How to Use
Attach the chip-A or chip-B to the universal wrench.
For the notches: chip-A
For the holes:
For the notches: chip-A
For the holes:
chip-B
Match the universal wrench to the holes or notches of the lens block, etc.
Notches
Holes
Universal wrench
J-6082-609-A
J-6082-609-A
Chip-A for
universal wrench:
J-6082-609-1
universal wrench:
J-6082-609-1
Chip-B for
universal wrench:
J-6082-609-2
universal wrench:
J-6082-609-2
Notches
Chip-A
Chip-A
Chip-B
Chip-B
Chip
Fixed screw
Fixed screw
Chip
Match the universal wrench
to the width of holes or notches.
to the width of holes or notches.
Universal wrench
Holes
When top of tip does not reach holes or notches because the fixed
screw becomes obstructive, replace the fixed screw to below.
+B 3X5 7-682-546-09
screw becomes obstructive, replace the fixed screw to below.
+B 3X5 7-682-546-09
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