Sony SAL50M28 Service Manual ▷ View online
2-2
SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)
2-1.
DISASSEMBLY
2-1-1. FRONT LENS BARREL AND MOUNT RIVETING BLOCK
(See Page 2-3.)
A
A
EXPLODED VIEW
3
Main Flexible Block
6
Back Adjustment
Washer
HELP01
HELP04
4
Rear Light
HELP02
7
Coupler
HELP05
5
Mount
Riveting
Block
Block
HELP03
1
Front Light
2
Front Lens
Barrel
Note:
Attach the decollation ring after cleaning the
attaching surface of the middle barrel.
Attach the decollation ring after cleaning the
attaching surface of the middle barrel.
FLANGE BACK
ADJUSTMENT
ADJUSTMENT
FLANGE BACK
ADJUSTMENT
ADJUSTMENT
Shield Barrel
Shield Barrel
Note:
Remove the front light shield barrel
using the name ring wrench A (49mm).
Remove the front light shield barrel
using the name ring wrench A (49mm).
Name ring wrench A (49mm):
J-6082-586-A
J-6082-586-A
Name ring wrench A (49mm)
HELP38
2-3
SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)
2-1-2. MF OPERATION RING AND TORQUE RING BLOCK
EXPLODED VIEW
1
SW Flexible and Main Flexible Block
HELP06
HELP09
HELP07
2
Focus Rubber Ring
3
MF Operation Ring
HELP08
HELP10
HELP12
4
Torque Ring Block
!-
Torque Ring
!=
Torque Ring
8
Spring Lever
5
Anti Slip Spring
6
Fixed Holding
Tube Block
7
Focus
Operation
Ring Guide Nut
Block
9
Pinch Distance
Adjust
Washer-A
Washer-A
0
Float Ring
Holder
Spring Adjust
![
Friction
Spring
Select the friction spring and torque ring spring adjust
according to the rotation load of the torque ring as follows.
according to the rotation load of the torque ring as follows.
1. Use the friction spring B and torque ring spring adjust washer (1 piece) as reference.
2. Adjust the torque of the torque ring by changing the number of the
2. Adjust the torque of the torque ring by changing the number of the
3. If the rotation remains light even adjust the torque by torque ring spring adjust washer,
Friction spring A (T = 2.05 mm): 2-684-266-01
Friction spring B
Friction spring B
(T = 1.32 mm): 2-684-267-01
Replace the friction spring B to the friction spring A and adjust again.
torque ring spring adjust washer (0 to 6 pieces).
A
A
B
B
(See Page 2-4.)
(See Page 2-5.)
HELP11
HELP13
Note:
2-4
SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)
2-1-3. FIXED HOLDING TUBE BLOCK
HELP14
HELP14
HELP15
1
Focus Range Switch Knob
2
Limiter Stopper Plate Block
3
FH Button Base
5
SW Flexible
4
Click Plate
EXPLODED VIEW
HELP17
HELP18
HELP16
Note:
Select the gap adjust washer according to the rotation load of the focus
range switch knob as follows.
Select the gap adjust washer according to the rotation load of the focus
range switch knob as follows.
1. Install the gap adjust washer-B and check the rotation.
2. If the rotation is heavy, replace with the gap adjust washer-A.
2. If the rotation is heavy, replace with the gap adjust washer-A.
3. If the rotation remains heavy even with the gap adjust washer-A,
Washer-A (T = 0.05 mm): 2-684-218-01
Washer-B
Washer-B
(T = 0.1 mm): 2-684-219-01
Washer-C
(T = 0.2 mm): 2-684-220-01
remove the washer and attach the focus range switch knob.
If it is largely wobbly, replace with the gap adjust washer-C.
A
A
2-5
SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)
2-1-4. FIXED BARREL UNIT AND MAIN FLEXIBLE BLOCK
A
A
C
D
D
C
B
B
(See Page 2-6.)
EXPLODED VIEW
1
Gear Cover
8
Fixed Barrel Unit
3
Linear Guide Key
2
Gear Block
HELP19
HELP23
HELP24
HELP25
HELP20
6
Focus Guide
7
Focus
HELP22
4
Guide Pin
5
Middle Tube Block
HELP21
HELP21
Stopper
HELP27
HELP28
HELP29
HELP24
HELP29
HELP26
9
Main Flexible Block
BRUSH POSITION
ADJUSTMENT
ADJUSTMENT
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