Sony SAL50M28 Service Manual ▷ View online
HELP
SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)
HELP34
Anti-diffusion agent (A-20): J-6082-611-A
Grease (G-15):
J-6082-619-A
1.
Apply the anti-diffusion agent (A-20) entirely to the shaded area of the inner barrel below the A line as shown in the figure.
2.
Apply the grease (G-15) to the guide groove of the first cam ring barrel, the cam groove of the aperture inner barrel, and area B as
shown in the figure.
HELP35
Oil (O-20):
J-6082-610-A
Grease (G-35):
J-6082-621-A
Anti-diffusion agent (A-20): J-6082-611-A
Adhesive bond (B-40):
J-6082-614-A
1.
Apply the oil (O-20) to the sub spring.
2.
Apply the grease (G-35) to the instruction part of the aperture linkage fork.
3.
Apply the anti-diffusion agent (A-20) entirely to the aperture linkage fork.
4.
Apply the adhesive bond (B-40) to the two screws and install the aperture linkage fork.
Apply the
anti-diffusion
agent
(A-20) (All circumference)
anti-diffusion
agent
(A-20) (All circumference)
Apply the oil (O-20)
Apply the grease (G-35)
Apply the adhesive
bond (B-40)
bond (B-40)
Apply the
adhesive
bond (B-40)
adhesive
bond (B-40)
Apply the anti-diffusion agent
(A-20) (All circumference)
(A-20) (All circumference)
Apply the grease (G-15) (Guide groove, cam groove and area B)
Inner Barrel
Guide
groove
groove
Cam groove
1st Cam Barrel
A
B
First Cam Ring
Aperture Inner Barrel
HELP
SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)
HELP36
Adhesive bond (B-10): J-6082-612-A
1.
Install the aperture blades one by one, and put the first blade on the 7th one finally.
2.
Apply the adhesive bond (B-10) to three points for 5 to 10mm of width after completing aperture diameter adjustment.
Apply the adhesive bond (B-10)
(Three points for 5-10 mm)
(Three points for 5-10 mm)
Aperture Blade
Unit (7)
Unit (7)
Aperture Hold
Ring
Ring
7
1
HELP
SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)
HELP37
Adhesive bond (B-40): J-6082-614-A
1.
Attach the first cam ring linkage plate block to the first cam ring, and apply the adhesive bond (B-40) to the two screws and tighten
them as shown in the figure.
Note:
Attach the pin of the first cam ring linkage plate block to the wide chamfered edge side of the first cam ring.
2.
Install the first cam ring so that the post of the first cam ring linkage plate block fits into groove A of the inner barrel. Then install it
with the first cam ring adjust washer.
HELP38
Adhesive bond (B-40): J-6082-614-A
Attach the front lens barrel, and apply the adhesive bond (B-40) to the three screws and tighten them as shown in the figure.
Apply the
adhesive bond (B-40)
adhesive bond (B-40)
Chamfered edge (Wide)
Chamfered edge
(Narrow)
(Narrow)
First Cam Ring
First Cam Ring
Adjust Washer
Adjust Washer
1st Cam Ring Hold Ring
First Cam Ring
Aperture Inner Barrel
Inner Barrel
Pin
Groove A
Groove A
First Cam Ring Linkage
Plate Block
Plate Block
Apply the
adhesive
bond (B-40)
adhesive
bond (B-40)
Front Lens Barrel
3-1
SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)
14
15
16
18
17
15
15
(See Page 3-2.)
1
2
7
11
(Note 1)
(Note 2)
4
3
5
7
6
A
A
8
9
10
13
(Note 1)
12
ns
10
2-684-234-01 PRESET RING HOLDING PLATE
11
Selection part
BACK ADJUSTMENT WASHER A to E (Note 1)
12
2-684-056-01 COUPLER
13
Selection part
COUPLER ADJUSTMENT WASHER A A to E (Note 1)
14
2-684-130-01 DECOLLATION RING
15
2-684-264-01 FRICTION SHEET C
16
2-684-263-
01
FRONT LENS BARREL
17
2-684-117-01 SCREW M1.6X4.0
18
2-696-835-01 FRONT LIGHT SHIELD BARREL
3. REPAIR PARTS LIST
3-1.
EXPLODED VIEWS
3-1-1. FRONT LENS BARREL AND MOUNT RIVETING BLOCK
DISASSEMBLY
Ref. No.
Part No.
Description
1
2-684-066-
01
TAPPING SCREW 1.7X4.0
2
2-684-064-01 SCREW M1.4X2.2
3
2-684-063-01 REAR LIGHT SHIELD BARREL
4
2-684-065-01 GROUND SPRING
5
A-1191-138-A BLOCK, MOUNT RIVETING
6
2-684-244-01 STOPPER SCREW
7
2-684-128-01 TAPPING SCREW PHI 2 M2.0X4.5
8
A-1191-017-A PRESET RING BLOCK
9
2-684-233-01 MAIN SPRING
NOTE:
•
-XX and -X mean standardized parts, so they may
have some difference from the original one.
have some difference from the original one.
•
Items marked “*” are not stocked since they are
seldom required for routine service. Some delay
should be anticipated when ordering these items.
seldom required for routine service. Some delay
should be anticipated when ordering these items.
•
The mechanical parts with no reference number in
the exploded views are not supplied.
the exploded views are not supplied.
Ref. No.
Part No.
Description
(Note 1)
The number or type of these parts need to be selected
according to adjustment etc..
Select the part referring to page 3-7.
according to adjustment etc..
Select the part referring to page 3-7.
Ver. 1.2 2007.08
ns: not supplied
The changed portions from
Ver. 1.1 are shown in blue
Ver. 1.1 are shown in blue
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