Sony SAL300F28G Service Manual ▷ View online
1-2
SAL300F28G (2.8/300 G) (300mm F2.8 G)
1-5-2. Foucus Trouble
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 of operation
of the connection box
and ultra sonic motor.
Check the focus cam
ring and outer
tube.
NG
NG
NG
NG
NG
END
OK
Check the position
and deformation
at the tip of the
A encoder brush.
Adjust the position, or
replace the A encoder brush.
Check pattern of
the DV encoder flexible.
Clean the pattern of the
DV encoder flexible.
Replace the
DV encoder flexible.
Perform the A encoder
(focus) brush position
check/adjustment.
(See page 5-28.)
2-1
SAL300F28G (2.8/300 G) (300MM F2.8 G)
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
2-2
SAL300F28G (2.8/300 G) (300MM F2.8 G)
2-1.
DISASSEMBLY
2-1-1. 1ST LENS BLOCK AND OUTER BARREL
5 Front Lens Barrel Rubber
7 Rubber Sheet A
8 1st Lens Block
9 2nd Lens Block
1 Filter
Block
Block
3 Switch Base Block
Front Lens
Barrel A
Barrel A
Focus Hold
Button Base
Button Base
Outer Barrel
Focus Hold
Button Base
Button Base
Focus Hold
Button Base
Button Base
Filter
Holder
Holder
Filter
2 Tripod Mount
Block
Block
4
HELP01
HELP02
HELP03
HELP04
HELP04
HELP07
HELP07
HELP06
HELP06
HELP06
HELP05
HELP04
Note:
The 2nd lens block is detached
with a 2gun tightening JIG
(300F28G) (J-6082-697-A).
with a 2gun tightening JIG
(300F28G) (J-6082-697-A).
EXPLODED VIEW
A
A
B
B
C
C
HELP06
6
(See Page 2-3.)
Ver. 1.2 2008.05
The changed portions from
Ver. 1.1 are shown in blue.
Ver. 1.1 are shown in blue.
2-3
SAL300F28G (2.8/300 G) (300MM F2.8 G)
2-1-2. IRIS HOLDING TUBE BLOCK AND APERTURE INNER BARREL BLOCK
B
B
A
A
HELP08
HELP09
HELP10
HELP14
HELP15
HELP13
HELP11
HELP12
HELP17
EXPLODED VIEW
HELP13
HELP16
(See Page 2-5.)
(See Page 2-4.)
1 Rear Light
Shield Barrel
Shield Barrel
2 Mount
4 Back Adjustment
Washer
3 Iris Holding Tube Block
5 DC/DC PC
Board Block
Iris Holding
Tube
Tube
Aperture
Connect
Lever
Connect
Lever
6 Aperture Inner
Barrel Block
Back Adjustment
Washer C
Polyester Tape
Polyester Tape
Polyester Tape
Connection Flexible B Block
SW Connection
Flexible Block
Flexible Block
Main Spring
Main Spring
Hook
Hook
Polyester Tape
FLANGE BACK ADJUSTMENT
HALF COMPLETION INSPECTION
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