Sony SAL20F28 Service Manual ▷ View online
HELP
SAL20F28 (2.8/20) (20mm F2.8)
HELP02
Adhesive bond (B-10): J-6082-612-A
1.
Affix both ends of focus scale plate with tapes, aligning the end (
∞ side) of focus scale plate with the marking on focus ring.
2.
Attach the focus ring to the outer barrel and align the “center of infinity” of focus scale plate with the guide mark of focus scale
window unit.
Note:
Be sure to turn the focus ring clockwise when aligning.
3.
Tighten the three screws as shown in the figure, and apply the adhesive bond (B-10) to the screw head as shown in the figure.
∞
Distance index
Outer Barrel
Focus Ring
Front Lens Barrel
Apply the adhesive bond(B-10)
Screw
Apply the adhesive bond(B-10)(3 areas)
Focus Ring
Scratch
Focus Scale Plate
Polyester Tape (Black)
10 mm (8 x 40 mm)
10 mm (8 x 40 mm)
Polyester Tape (Black)
10 mm (8 x 40 mm)
10 mm (8 x 40 mm)
Ver 1.2 2007.05
HELP
SAL20F28 (2.8/20) (20mm F2.8)
HELP03
Adhesive bond (LOCTITE 460) (Note)
Note:
Use adhesive bond (LOCTITE 460) or an equivalent article.
Do not use what becomes white after drying like quick-drying glue.
Anti-diffusion agent (A-20): J-6082-611-A
Adhesive bond (B-40):
J-6082-614-A
1.
Apply the adhesive bond ((LOCTITE 460) to the back side of the mount index, and attach it to the outer barrel.
2.
Apply the anti-diffusion agent (A-20) to the instruction portions of the outer barrel.
3.
Attach the outer barrel and outer barrel hold plate as shown in the figure. Apply the adhesive bond (B-40) to the three screws and
tighten them as shown in the figure.
Apply the adhesive bond(LOCTITE 460)
Outer Barrel
Apply anti-diffusion agent(A-20)
(All circumference)
(All circumference)
Outer Barrel
Apply the adhesive bond (B-40)(3 areas)
Coupler Bush
Outer Barrel Hold Plate
Notch
Outer Barrel
Mount Index
Outside Barrel
Outer Barrel Plate
Notch the outer barrel
HELP
SAL20F28 (2.8/20) (20mm F2.8)
HELP04
1.
Attach the main flexible unit to the rear light interception tube with two screws as shown in the figure.
2.
Affix the main flexible unit to flexible set tape as shown in the figure.
3.
Bend the main flexible unit to inside of rear light interception tube, fix with the flexible set tape in the arrow direction.
Note:
When handling the main flexible unit, take care the static electricity.
HELP05
Adhesive bond (B-40): J-6082-614-A
1.
Hook the main spring to the hook of rear light shield barrel and the hook of preset ring.
2.
Install the rear light shield barrel to the lens mount riveting block, apply the adhesive bond (B-40) to the screwed portions of screws,
and tighten screws.
3.
Install the ground spring to the rear light barrel and then the signal board.
Note:
Be careful not to tighten screws too strongly.
Confirm that the preset ring moves smoothly.
Rear Light Shield Barrel
Ground Spring
Main Flexible Unit
Two Screws
Rear Light Interception Tube
Main Flexible Unit
Flexible Set Tape
Main Spring
Preset Ring
Lens Mount
Riveting Block
Riveting Block
Rear Light Shield Barrel
Apply the adhesive bond(B-40)
Apply the adhesive bond(B-40)
Ground Spring
Main Flexible Unit
HELP
SAL20F28 (2.8/20) (20mm F2.8)
HELP06
Adhesive bond (LOCTITE 460) (Note)
Note:
Use adhesive bond (LOCTITE 460) or an equivalent article.
Do not use what becomes white after drying like quick-drying glue.
Anti-diffusion agent (A-20): J-6082-611-A
Grease (G-85):
J-6082-626-A
1.
Apply the adhesive bond (LOCTITE 460) to the stopper screw, and attach it to the lens mount riveting block.
2.
Apply the anti-diffusion agent (A-20) and grease (G-85) to the instruction portions of the lens mount riveting block.
3.
Attach the lens mount riveting block, and check the operation of the aperture blade.
Turn the cam ring unit, and check the movement of the coupler.
HELP07
Grease (G-80): J-6082-625-A
Grease (G-85): J-6082-626-A
Apply the grease (G-85) to the gear and the grease (G-80) to the sliding surfaces of the coupler.
Apply the anti-diffusion agent(A-20)
(All circumference)
(All circumference)
Apply the grease(G-85)
(3 claes)
(3 claes)
Apply the adhesive bond(LOCTITE 460)
Lens Mount Riveting Block
Apply the grease(G-85)
(Sliding surfaces)
(Sliding surfaces)
Apply the grease(G-80)
(Geare)
(Geare)
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