Sony SAL50M28 - 50mm f/2.8 Macro Lens Bedienungsanleitung

SERVICE NOTE

SPECIFICATIONS

REPAIR PARTS LIST

DISASSEMBLY ADJUSTMENTS

SERVICE MANUAL

Link

Revision History

How to use

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Sony EMCS Co.

SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)

Ver 1.1 2007.02

LENS FOR DSLR CAMERA

2007B0800-1

Published by Kohda TEC9-852-101-12

US Model

Canadian Model

AEP Model

Chinese Model

SAL50M28

(MACRO 2.8/50) (50mm F2.8 Macro)

• About the Lens Test Projector

— 2 —

SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)

SPECIFICATIONS

• This lens is equipped with a distance encoder. The distance encoder allows more accurate measurement (ADI) by using a flash for ADI.

• Depending on the lens mechanism, the focal length may change with any change of the shooting distance. The focal length assumes the lens is focused

at infinity.

Equivalent 35mm-format focal length *1(mm)

*1The value for equivalent 35mm-format focal length is based on Digital Single Lens Reflex Cameras equipped with an APS-C sized image sensor.

Lens groups elements

6-7

Angle of view 1*2

47°

Angle of view 2*2

32°

*2The value of angle of view 1 is based on 35mm-format cameras, and that of angle of view 2 is based on Digital Single Lens Reflex Cameras

equipped with an APS-C sized image sensor.

Minimum focus (m (feet)) *3

0.2 (0.65)

*3Minimum focus is the shortest distance from the image sensor to the subject.

Maximum magnification (××

××

×)

Minimum f-stop

f/32

Filter diameter (mm)

Dimensions (maximum diameter ××

××

×height) (mm (in.))

Approx. 71.5 ×60 (2 13/16 ×2 3/8)

Mass (g (oz.))

Approx. 295 (10 3/8)

Included items

Lens (1), Front lens cap (1), Rear lens cap (1), Set of printed documentation

Designs and specifications are subject to change without notice.

—3 —

SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)

TABLE OF CONTENTS

Section Title Page

1. SERVICE NOTE

1-1. Chemicals ······································································· 1-1

1-2. Exterior Parts ·································································· 1-1

1-3. Unleaded Solder ····························································· 1-1

1-4. Safety Check-out ···························································· 1-2

1-5. Troubleshooting ····························································· 1-3

2. DISASSEMBLY

2-1. Disassembly ··································································· 2-2

3. REPAIR PARTS LIST

3-1. Exploded Views ······························································ 3-1

3-2. Supplied Accessories ······················································ 3-8

4. ADJUSTMENTS

4-1. Preparations ···································································· 4-1

4-2. Aperture Diameter Check/Adjustment ··························· 4-4

4-3. Projective Resolving Power Check ································4-9

4-4. Flange Back (f’F) Check/Adjustment ·························· 4-12

4-5. Lens ROM Check ························································· 4-16

4-6. Brush Position Check/

Adjustment and Pattern Check ····································· 4-17

4-7. Error Code List ····························································· 4-20

1-1

SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)

1. SERVICE NOTE

1-1. Chemicals

Some chemicals used for servicing are highly volatile.

Their evaporation caused by improper management affects your health and environment, and wastes resources.

Manage the chemicals carefully as follows.

• Store chemicals sealed in a specific place to prevent from exposure to high temperature or direct sunlight.

• Avoid dividing chemicals into excessive numbers of small containers to reduce natural evaporation.

• Keep containers sealed to avoid natural evaporation when chemicals are not in use.

• Avoid using chemicals as much as possible. When using chemicals, divide only required amount to a small plate from the container and

use up it.

1-2. Exterior Parts

Be careful to the following points for exterior parts used in this unit.

• Use a piece of cleaning paper or cleaning cloth for cleaning exterior parts. Avoid using chemicals.

Even if you have to use chemicals to clean heavy dirt, don’t use paint thinner, ketone, nor alcohol.

• Insert the specific screws vertically to the part when installing a exterior part.

Be careful not to tighten screws too much.

1-3. Unleaded Solder

This unit uses unleaded solder.

Boards requiring use of unleaded solder are printed with the lead free mark (LF) indicating the solder contains no lead.

(Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.)

: LEAD FREE MARK

Be careful to the following points to solder or unsolder.

• Set the soldering iron tip temperature to 350 °C approximately.

If cannot control temperature, solder/unsolder at high temperature for a short time.

Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful!

Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges

occur such as on IC pins, etc.

• Be sure to control soldering iron tips used for unleaded solder and those for leaded solder so they are managed separately. Mixing

unleaded solder and leaded solder will cause detachment phenomenon.

1-2

SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)

1-4. SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety checks before releasing the set to the customer.

1. Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder splashes and

bridges.

2. Check the interboard wiring to ensure that no wires are “pinched” or contact high-wattage resistors.

3. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the

customer and recommend their replacement.

4. Look for parts which, through functioning, show obvious signs of deterioration. Point them out to the customer and recommend their

replacement.

5. Check the B+ voltage to see it is at the values specified.

6. Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270 °C during repairing.

• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINEWITH

MARK 0ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS

LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE

COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS

APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS

PUBLISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0SUR LES

DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT

CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE

REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY

DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU

DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

CAUTION

Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type.

1-3

SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)

1-5. TROUBLESHOOTING

1-5-1. Aperture Trouble

Ver 1.1 2007.02

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.)

Check operation of the

aperture control block.

OK OK

Function NG F No. NG

Aperture trouble

Replace the defective part.

NGNG

END

Perform the aperture

diameter check.

(See page 4-4.)

1-4

SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)

1-5-2. Foucus Trouble

Check the operation

again.

Replace the defective part

or apply the grease.

Function NG Position NG

Focus trouble

Replace the defective part

or apply the grease.

Check the coupler and

gear block.

Check the fixed holding

tube block and

fixed barrel unit.

NGNG

END

Check the position

and deformation

at the tip of the

A encoder brush.

Adjust the position, or replace

the A encoder brush.

Check pattern

of the main flexible block.

Clean the pattern of the

main flexible block.

Replace the

main flexible block.

Perform the

brush position

check/adjustment.

(See page 4-17.)

2-1

SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)

Cut and remove the part of gilt

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.

How to Use

Attach the chip-A or chip-B to the universal wrench.

For the notches: chip-A

For the holes: chip-B

Match the universal wrench to the holes or notches of the lens block, etc.

When top of tip does not reach holes or notches because the fixed screw becomes obstructive,

replace the fixed screw to below.

+B 3X5 7-682-546-09

Notches Holes

Universal wrench

J-6082-609-A

Chip-A for

universal wrench:

J-6082-609-1

Chip-B for

universal wrench:

J-6082-609-2

Ver 1.1 2007.02

Notches

Chip-A

Chip-B

Chip

Fixed screw

Chip

Match the universal wrench

to the width of holes or notches.

Universal wrench

Holes

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.)

EXPLODED VIEW

3Main Flexible Block

6Back Adjustment

Washer

HELP01

HELP04

4Rear Light

HELP02

7Coupler

HELP05

5Mount

Riveting

Block

HELP03

1Front Light

2Front Lens

Barrel

Note:

Attach the decollation ring after cleaning the

attaching surface of the middle barrel.

FLANGE BACK

ADJUSTMENT

FLANGE BACK

ADJUSTMENT

Shield Barrel

Note:

Remove the front light shield barrel

using the name ring wrench A (49mm).

Name ring wrench A (49mm):

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

1SW Flexible and Main Flexible Block

HELP06

HELP09

HELP07

2Focus Rubber Ring

3MF Operation Ring

HELP08

HELP10

HELP12

4Torque Ring Block

Torque Ring

8Spring Lever

5Anti Slip Spring

6Fixed Holding

Tube Block

Focus

Operation

Ring Guide Nut

Block

Pinch Distance

Adjust

Washer-A

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.

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

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

(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).

(See Page 2-4.)

(See Page 2-5.)

HELP11

HELP13

Note:

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