Read Sony SAL20F28 Service Manual online
HELP
SAL20F28 (2.8/20) (20mm F2.8)
HELP11
Anti-diffusion agent (A-20): J-6082-611-A
Adhesive bond (B-40):
J-6082-614-A
Grease (G-15):
J-6082-619-A
1.
Apply the anti-diffusion agent (A-20) and the grease (G-15) to the instruction portions of the fixed cam ring.
2.
Apply the anti-diffusion agent (A-20) and the grease (G-15) to the instruction portions of the focus cam ring.
3.
Install the fixed cam ring to the focus cam ring.
4.
Select the cam tube guide roller suitable for the width of the groove on the focus cam ring. Apply the adhesive bond (B-40) to the
cam ring guide roller. (Tighten the three cam tube guide rollers into three places.)
5.
Check that the fixed cam ring moves smoothly.
B
B
C
A
C
A
Apply the grease(G-15)
(All circumference)
(All circumference)
Apply the grease(G-15)
(3 areas)
(3 areas)
Apply the adhesive bond(B-40)
Apply the adhesive bond
(B-40)
(B-40)
Cam Ring Unit
Fixed Cam
Ring
Ring
Cam Ring Guide Roller
Apply the grease(G-15)
(6 areas)
(6 areas)
Focus Cam
Ring
Ring
Apply the anti-diffusion agent(A-20)
(All circumference)
(All circumference)
Apply the anti-diffusion agent(A-20)
(All circumference)
(All circumference)
Outer Barrel
Focus Cam Ring
Screw Holes
Screw Holes
Screw Holes
U Grooves
U Grooves
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