Sony SAL28F28 - Wide-angle Lens - 28 mm Bedienungsanleitung

SERVICE NOTE

SPECIFICATIONS

REPAIR PARTS LIST

DISASSEMBLY ADJUSTMENTS

SERVICE MANUAL

Link

Revision History

How to use

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How to use

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Sony EMCS Co.

SAL28F28 (2.8/28) (28mm F2.8)

Ver 1.1 2007.01

LENS FOR DSLR CAMERA

2007A0800-1

Published by Kohda TEC9-852-116-12

US Model

Canadian Model

AEP Model

Chinese Model

SAL28F28

(2.8/28) (28mm F2.8)

— 2 —

SAL28F28 (2.8/28) (28mm F2.8)

SPECIFICATIONS

• 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 5mm-format focal length is based on Digital Single Lens Reflex Cameras equipped with an APS-C sized image sensor.

Lens groups elements

5-5

Angle of view 1 *1

75°

Angle of view 2 *1

54°

*2The value of angle of view 1 is based on 5mm-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. (1)

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

Maximum magnification (××

××

×)

0.1

Minimum f-stop

f/22

Filter diameter (mm)

Dimensions (maximum diameter ××

××

×height) (mm (in.))

Approx. 65.5 × 42.5 (2 9/16 × 1 11/16)

Mass (g (oz.))

Approx. 185 (6 1/2)

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 —

SAL28F28 (2.8/28) (28mm F2.8)

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 ······················································ 3-4

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. Error Code List ····························································· 4-17

SAL28F28 (2.8/28) (28mm F2.8)

1-1

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.

SAL28F28 (2.8/28) (28mm F2.8)

1-2

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.

SAL28F28 (2.8/28) (28mm F2.8)

1-3

1-5. TROUBLESHOOTING

1-5-1. Aperture Trouble

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 diaphragm

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.)

SAL28F28 (2.8/28) (28mm F2.8)

1-4

1-5-2. Focus 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.

Check the outer barrel

and focusing ring.

NGNG

END

Check the installation

of the main flexibl unit.

Reinstall the main flexibl unit.

Check the focusing

operation again.

Clean the pattern of the

main flexible unit.

Replace the

main flexible unit.

Check the focusing

operation again.

2-1

SAL28F28 (2.8/28) (28mm F2.8)

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.

Universal wrench

J-6082-609-A

Chip-A for

universal wrench:

J-6082-609-1

Chip-B for

universal wrench:

J-6082-609-2

Notches

Chip-A

Chip-B

Chip

Match the universal wrench

to the width of holes or notches.

Universal wrench

Holes

Notches Holes

Ver 1.2 2007.01

2-2

SAL28F28 (2.8/28) (28mm F2.8)

2-1. DISASSEMBLY

2-1-1. MIRROR TUBE BLOCK, FOCUS RING AND FRONT LENS HOLDER BLOCK

1G1 Stopper Ring

2Mirror Tube Block

4Front Lens

Holder Block

3Focus Ring

HELP03

FLANGE BACK

ADJUSTMENT

HELP01

HELP02

5Fixed Holding Tube

EXPLODED VIEW

HELP04

Note:

Name ring wrench B (49 mm)

Remove the G1 stopper ring using the

name ring wrench B (49 mm).

Name ring wrench B (49 mm):

J-6082-586-A

2-3

SAL28F28 (2.8/28) (28mm F2.8)

2-1-2. REAR LENS HOLDER BLOCK, HELICOID UNIT AND IRIS CONTROL BLOCK

EXPLODED VIEW

5Coupler

7Iris Control

Block

HELP10

9Helcoid

Unit

HELP12

HELP11 HELP09

HELP05

3Rear Light

Interception Tube

4Main Flexible Unit

Lens Mount Block

HELP06

1Lens Mount

Riveting Block

6Rear Lens

Holder Block

2Main

Spring

HELP08

HELP07

APERTURE

DIAMETER

ADJUSTMENT

8Leanear Guide Key

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