Sony SAL28F28 Service Manual ▷ View online
SAL28F28 (2.8/28) (28mm F2.8)
1-3
1-5.
TROUBLESHOOTING
1-5-1. Aperture Trouble
NG
Check operation of
the preset ring.
Replace the defective part.
Check operation of the
preset ring, and replace
the defective part.
Perform the aperture
diameter adjustment.
(See page 4-7.)
Perform the aperture
diameter check.
(See page 4-4.)
NG
Check operation
of the diaphragm
control block.
OK
OK
OK
Function NG
F No. NG
Aperture trouble
Replace the defective part.
NG
NG
NG
END
OK
Perform the aperture
diameter check.
(See page 4-4.)
SAL28F28 (2.8/28) (28mm F2.8)
1-4
1-5-2. Focus 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 the coupler.
Check the outer barrel
and focusing ring.
NG
NG
NG
NG
NG
END
OK
Check the installation
of the main flexibl unit.
Reinstall the main flexibl unit.
Check the focusing
operation again.
Clean the pattern of the
main flexible unit.
Replace the
main flexible unit.
Check the focusing
operation again.
2-1
SAL28F28 (2.8/28) (28mm F2.8)
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.
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
Chip
Match the universal wrench
to the width of holes or notches.
to the width of holes or notches.
Universal wrench
Holes
Notches
Holes
Ver. 1.1 2007.01
2-2
SAL28F28 (2.8/28) (28mm F2.8)
2-1.
DISASSEMBLY
2-1-1. MIRROR TUBE BLOCK, FOCUS RING AND
FRONT LENS BLOCK
1
G1 Stopper Ring
2
Mirror Tube Block
4
Front Lens
Block
3
Focus Ring
A
HELP03
FLANGE BACK
ADJUSTMENT
ADJUSTMENT
HELP01
HELP02
B
5
Fixed Holding Tube
B
A
EXPLODED VIEW
HELP04
Note:
Name ring wrench B (49 mm)
Remove the G1 stopper ring using the
name ring wrench B (49 mm).
name ring wrench B (49 mm).
Name ring wrench B (49 mm):
J-6082-586-A
J-6082-586-A
Ver. 1.2 2007.10
The changed portions from
Ver. 1.1 are shown in blue.
Ver. 1.1 are shown in blue.
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