Text preview for : SONY DSLR-A300 SERVICE MANUAL LEVEL 2 VER 1.6 2009.06 REV-1 (9-852-277-37).pdf part of SONY DSLR-A300 SONY DSLR-A300
DIGITAL SINGLE LENS REFLEX CAMERA.
SERVICE MANUAL VERSION 1.6 2009.06 REVISION-1
PART#(9-852-277-37)
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DSLR-A300
SERVICE MANUAL LEVEL 2
AEP Model
Ver. 1.6 2009.06 UK Model
Revision History E Model
Chinese Model
Revised-1 Japanese Model
Replacement of the
previously issued
SERVICE MANUAL 9-852-277-32
with this manual.
Link
SPECIFICATIONS BLOCK DIAGRAMS PRINTED WIRING BOARDS
SERVICE NOTE FRAME SCHEMATIC DIAGRAM REPAIR PARTS LIST
DISASSEMBLY SCHEMATIC DIAGRAMS
The components identified by Les composants identifiés par une
mark 0 or dotted line with marque 0 sont critiques pour la
mark 0 are critical for safety. sécurité.
Replace only with part num- Ne les remplacer que par une pièce
ber specified. portant le numéro spécifié.
DIGITAL SINGLE LENS REFLEX CAMERA
2009F0500-1
DSLR-A300_L2 © 2009.6
9-852-277-33 Sony EMCS Co. Published by Kohda TEC
SPECIFICATIONS
Camera [Viewfinder] [Others]
Type Fixed eye-level penta- PictBridge Compatible
[System] Dach-mirror Exif Print Compatible
Camera Type Field of View
Digital Single Lens Reflex PRINT Image Matching III
0.95 Compatible
Camera with built-in flash
and interchangeable lenses Magnification Dimensions Approx. 130.8 × 98.5 ×
0.74 × with 50 mm lens at 74.7mm (5 1/4 × 4 ×
Lens All of Lens infinity, 1 m1 3 inches) (W/H/D,
[Image sensor] Eye Relief Approximately 20.8 mm excluding protrusions)
Total pixel number of camera from the eyepiece,
Mass Approx.582 g (1 lb 4.5 oz)
16.7 mm from the eyepiece (without batteries, memory
Approx. 10 800 000 pixels
frame at 1 diopter card and body accessories)
Effective pixel number of camera (1 m1)
Approx. 10 200 000 pixels Operating temperature
Dioptor Adjustment
Image format 0 to 40°C (32 to 104°F)
3.0 to +1.0 m1 (When using the
23.6×15.8mm (APS-C
format) Interlace scan [Exposure] (in the viewfinder mode) Microdrive: 5 to 40°C (41
Primary Color to 104°F))
Metering Cell
ISO sensitivity (Recommended SPC Exif Exif Ve r.2.21
exposure index) USB communication
AUTO, 100 to 3200 Metering method
40-segment honeycomb- Hi-Speed USB (USB 2.0
[Super SteadyShot] pattern compliant)
System Image sensor-Shift Metering Range
mechanism 2 to 20 EV (4 to 20 EV BC-VM10 Battery charger
Super SteadyShot Compensation with Spot metering), (at Input rating 100 V 240 V AC, 50/60
capability ISO 100 with F1.4 lens) Hz
Approximately 2.5 to 3.5 Exposure compensation Output rating
EV decrease in shutter ±2.0 EV (1/3 EV step) 8.4 V DC, 750 mA
speed (varies according to
[Shutter] Operating temperature range
shooting conditions and
0 to 40°C (32 to 104°F)
lens used) Type Electronically-controlled,
vertical-traverse, focal- Storage temperature range
[Anti-Dust] plane type 20 to +60°C (4 to
System Charge protection coating +140°F)
Speed range 1/4000 second to 30
on Low-Pass Filter and seconds, bulb, (1/3 EV Maximum dimensions
image sensor-Shift step) Approx. 70 × 25 × 95 mm
mechanism (2 7/8 × 1 × 3 3/4 inches)
Flash sync speed (W/H/D)
[Auto Focus System] 1/160 second
Mass Approx. 90 g (3.2 oz)
System TTL phase-detection
system, CCD line sensors [Built-In-Flash]
(9 points, 8 lines with Flash G.No. Rechargeable battery pack
center cross-hair sensor) GN 12 (in meters at ISO NP-FM500H
Sensitivity Range 100)
Used battery
0 to 18 EV (at ISO 100 Recycling time Lithium-ion battery
equivalent) Approx. 4 seconds
Maximum voltage
AF illuminator Flash coverage DC 8.4 V
Approx. 1 to 5 m (3.3 to Covering 18 mm lens
16 feet) (focal length that the lens Nominal voltage
indicates) DC 7.2 V
[Live view] Maximum charge current
Flash compensation
Type Pentamirror tilt mechanism ±2.0 EV (1/3 EV step) 2.0 A
Maximum charge voltage
Image format
[Recording media] DC 8.4 V
Exclusive image sensor for
Live view CompactFlash card Capacity 11.8 Wh (1 650 mAh)
Metering method (TypeI,II), Microdrive, Maximum dimensions
1200-zone evaluative "Memory Stick Duo" Approx. 38.2 × 20.5 × 55.6
metering (With a Memory Stick Duo mm (1 9/16 × 13/16 × 2 1/4
Adaptor for CompactFlash inches) (W/H/D)
Metering range slot)
2 to 17 EV (Multi segment, Mass Approx. 78 g (2.8 oz)
Center weighted, Spot) (at [LCD monitor]
ISO 100 with F1.4 lens) LCD panel 6.7 cm (2.7 type) TFT Design and specifications are subject
Field of View drive to change without notice.
0.90 Total number of dots
230 400 (960 × 240) dots
[Power, general]
Used battery pack
Rechargeable battery pack
NP-FM500H
DSLR-A300_L2
--2--
1. SERVICE NOTE ENGLISH JAPANESE
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 plastic parts used in this unit.
· Use a piece of cleaning paper or cleaning cloth for cleaning plastic 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 plastic 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.
1-4. 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.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
SAFETY-RELATED COMPONENT WARNING!! ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
PUBLISHED BY SONY. DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
DSLR-A300_L2
1-1
ENGLISH JAPANESE
1-5. METHOD OF EXCHANGING SI SCREEN AND FOCUS PLATE
1 Remove two claws pushing part A below, 3 Remove focus plate and VB spacer.
and remove VM FS retainer in the direction
of arrow. VB Spacer
Claw
A
Claw
Focus Plate
VM FS Retainer
2 Remove VM FS retainer.
VM FS Retainer
4 Remove SI screen.
SI Screen
Claw
Note: When you exchange the SI screen,
don't put dust or give a scratch.
DSLR-A300_L2
1-2
Ver. 1.2 2008.06
1. SERVICE NOTE ENGLISH JAPANESE
DSLR-A300_L2
1-3
Ver. 1.2 2008.06
ENGLISH JAPANESE
0
DSLR-A300_L2
1-4
Ver. 1.2 2008.06
ENGLISH JAPANESE
1A 3
A
2
4
DSLR-A300_L2
1-5E
2. DISASSEMBLY
NOTE FOR REPAIR
· Make sure that the flat cable and flexible board are not cracked of bent at the terminal. Cut and remove the part of gilt
Do not insert the cable insufficiently nor crookedly. which comes off at the point.
(Be careful or some
· When remove a connector, don't pull at wire of connector. It is possible that a wire is snapped. pieces of gilt may be left inside)
· When installing a connector, don't press down at wire of connector.
It is possible that a wire is snapped.
· Do not apply excessive load to the gilded flexible board.
DISCHARGING OF THE ST-196 BOARD'S CHARGING CAPACITOR (C901)
The charging capacitor (C901) of the ST-196 board is charged Note: High-voltage cautions
up to the maximum 330 V potential.
There is a danger of electric shock by this high voltage when the Discharging the Capacitor
Short-circuit between two points
capacitor is handled by hand. The electric shock is caused by with the short jig about 10 seconds.
the charged voltage which is kept without discharging when the
main power of the unit is simply turned off. Therefore, the
remaining voltage must be discharged as described below.
Preparing the Short Jig ST-196 Board
To preparing the short jig, a small clip is attached to each end of
a resistor of 1 k /1 W (1-215-869-11).
Wrap insulating tape fully around the leads of the resistor to
prevent electrical shock.
1 k/1 W
R:1 k/1 W
(Part code: 1-215-869-11)
Wrap insulating tape.
SUBSIDIARY MATERIALS
G: Grease
G-85 (J-6082-626-A)
DSLR-A300_L2
2-1
2-1. IDENTIFYING PARTS - DISASSEMBLY FLOW -
2-2-1. OVERALL SECTION 2-2-2. FRONT COVER SECTION
Front Cover Control Switch Block (FS62700)
Rear Cover Side Cover Grip Cover
LF-057 Flexible Board Rear Cover
AM-013 Board
MM-078 Flexible Board 2-2-4. MAIN BOARD SECTION 2-2-3. REAR COVER SECTION
AM-013 Board LCD
MM-076 Board Control Switch Block (RS62700)
Top Cover 2-2-5. SHUTTER UNIT SECTION
Tebure Unit
Shutter Unit
2-2-6. BOTTOM FRAME SECTION 2-2-9. BATTERY HOLDER SECTION
Top Cover Media Lid
Bottom Frame ST-196 Board
Tebure Unit Battery Holder Battery Terminal Board
MM-076 Board CCD Assy
Battery Holder IS Flexible Unit
GY-008 Flexible Board 2-2-7. TOP COVER SECTION 2-2-10. TERMINAL HOLDER SECTION
MA-450 Flexible Board Control Switch Block (TK62700) Eye Piece Frame
ST-196 Board Shutter Unit Terminal holder
AF Module
Mirror Box
Eye Piece 2-2-8. FLASH UNIT SECTION
Frame Unit Flash Unit
Stroboscope Base
Mode Dial 2-2-11. MIRROR BOX SECTION (PENTA UNIT)
Penta Unit
Terminal Holder 2-2-12. MIRROR BOX SECTION (SUB UNIT-1)
RM-096 Flexible Board Iris Ring
Mirror Box Aperture Unit
AF Driving Unit
Side Cover
2-2-13. MIRROR BOX SECTION (SUB UNIT-2)
AF Module Charge Base Plate A Unit
Shutter Charge Lever
Front Cover
DSLR-A300_L2
2-2
HELP
2-2. DISASSEMBLY
EXPLODED VIEW HARDWARE LIST
2-2-1. OVERALL SECTION
Follow the disassembly in the numerical order given.
1 Side Cover (1-1 to 1-3)
2 Rear Cover (2-1 to 2-10)
3 Front Cover (3-1 to 3-6)
Note: High-voltage cautions
Discharging the Capacitor
Short-circuit between two points
with the short jig about 10 seconds.
ST-196 Board
R:1 k/1 W
3-4 (#23)
(Part code: 1-215-869-11) 2 Rear Cover
2-6 (#23) (See Page 2-5)
3-5
2-3 2-4 (#2)
2-5 3-3 2-9
(Open) (Open)
2-10 2-7
3-2 (#2)
(#23)
3 Front Cover
(See Page 2-4)
1-2
(Open) 2-8 (#2)
1-3 (#23)
3-6 1-1 (#2)
HELP 1 1Side Cover
2-1
Main Board Section
(See Page 2-6)
2-2
3-1
DSLR-A300_L2
2-3
2-2-2. FRONT COVER SECTION
Follow the disassembly in the numerical order given. EXPLODED VIEW HARDWARE LIST
1 Control Switch Block (FS62700) (1-1 to 1-2)
2 Grip Cover (2-1 to 2-2)
1 Control Switch Block
(FS62700) 1-2 (#75)
2-1
(#75) HELP 2
1-1
(#75)
2Grip Cover
2-2
DSLR-A300_L2
2-4
2-2-3. REAR COVER SECTION
Follow the disassembly in the numerical order given. EXPLODED VIEW HARDWARE LIST
1 LCD (1-1 to 1-14)
2 Control Switch Block (RS62700) (2-1 to 2-8)
1-8 1-11
(#118)
1-10
(Claw)
1-9
(Claw)
1LCD 1-7
(#118)
1-14
HELP 4
1-6 HELP 3
1-4
1-2
(Claw)
(Claw)
1-12
2-8
2 Control Switch Block
(RS62700)
1-5 1-3
Main SW Knob
1-1
2-7 (#108) (#110)
2-3
HELP 5
2-2 2-4 (#75)
2-1
HELP 5 HELP 5 Note: Adjust Main SW Knof to the position of "OFF" when
2-6 2-5 you install Control Switch Block (RS62700).
(#75) 1-13
DSLR-A300_L2
2-5
2-2-4. MAIN BOARD SECTION
Follow the disassembly in the numerical order given. EXPLODED VIEW HARDWARE LIST
1 AM-013 Board (1-1 to 1-20)
2 MM-076 Board (2-1 to 2-3)
1 AM-013 Board
1-18 (#75)
2MM-076 Board
2-2 (#75)
AM 1-19
Shutter Unit Section - 01
3 (#109)
(See Page 2-7) 2-1
HELP 7
1-20
2-3 (#75)
1-6
1-12 1-13 1-15
1-2 1-10
1-14
1-11
1-1
1-3
HELP 6
1-5 1-4 1-7 1-8 1-9 1-16 1-17
DSLR-A300_L2
2-6
2-2-5. SHUTTER UNIT SECTION
Follow the disassembly in the numerical order given. EXPLODED VIEW HARDWARE LIST
1 Tebure Unit (1-1 to 1-12)
2 Shutter Unit (2-1)
1 Tebure Unit
Do not hang flexible board of mirror
box when you remove Tebure Unit.
Refer to page 2-16 "2-3. IMAGER
1-4 1-1 (#110)
INCLINATION ADJUSTMENT"
when the tebure unit is installed.
HELP 8 1-5
(#23) 1-11
1-6 (#23) 1-2
2-1 (Boss)
1-7
(#14)
1-9
1-8
(#59)
1-12
(#23)
1-10
(Slide)
2Shutter Unit
HELP 9
Bottom Frame Section
(See Page 2-8)
1-3 (#84)
DSLR-A300_L2
2-7
2-2-6. BOTTOM FRAME SECTION
Follow the disassembly in the numerical order given. EXPLODED VIEW HARDWARE LIST
1 Top Cover (1-1 to 1-7)
2 Bottom Frame (2-1 to 2-4)
3 Battery Holder (3-1 to 3-6)
Note: On installation of the top cover, adjust the position of the V lever and
the LIVE VIEW/OVF select lever.
LIVE VIEW/OVF
Select Lever
V Lever
1 Top Cover
(See Page 2-9) 1-6 (#2) 1-3 (#112)
1-4
1-1
HELP 10 1-5 (#113)
3 Battery Holder
(See Page 2-11)
HELP 11
3-4 (#23) 1-2
1-7 (#2)
3-6 (#23)
3-1 3-5 (#110)
3-2
Terminal Holder Section
(See Page 2-12)
3-3
2-1 (#59)
2Bottom Frame
2-2 (#23)
2-4 (#86) 2-3 (#23)
DSLR-A300_L2
2-8
2-2-7. TOP COVER SECTION
Follow the disassembly in the numerical order given. EXPLODED VIEW HARDWARE LIST
1 Control Switch Block (TK62700) (1-1 to 1-13)
1-13 (#75)
1-8
(#114)
1-7 (Solder)
1-6 (#14) 1-1 HELP 25
1-3
(#75)
1 Control Switch Block
(TK62700)
1-12
(#75)
1-2 (#75)
1-4
HELP 12
1-11
1-5
HELP 12
Flash Section
(See Page 2-10)
1-10
1-9
DSLR-A300_L2
2-9
2-2-8. FLASH UNIT SECTION
Follow the disassembly in the numerical order given. EXPLODED VIEW HARDWARE LIST
1 Flash Unit (1-1 to 1-6)
2 Stroboscope Base (2-1)
3 Mode Dial (3-1)
1-2 (Claw)
1 Flash Unit
HELP 13
1-3
1-6
2Stroboscope Base
2-1
(#109)
1-4
3 Mode Dial
HELP 15
1-1 (#23)
HELP 14
3-1
1-5
HELP 10
DSLR-A300_L2
2-10
2-2-9. BATTERY HOLDER SECTION
Follow the disassembly in the numerical order given. EXPLODED VIEW HARDWARE LIST
1 Media Lid (1-1 to 1-4)
2 ST-196 Board (2-1 to 2-3)
3 Battery Terminal Board (3-1 to 3-15)
3-5 (#109)
1-3 (#108)
1-4 3-11
(Claw) 3-10 (#75) 3-3 (#109)
1 Media Lid
3-4
3-12
HELP 17
1-2
1-1
3-1 (#116) 3-13 3 Battery Terminal
2-2 Board
HELP 16 3-2 3-6
(#23)
2-1
3-14
(Claw)
3-7 (#23)
2-3
(#75)
3-15
3-9
3-8 (#23)
2ST-196 Board
DSLR-A300_L2
2-11
2-2-10. TERMINAL HOLDER SECTION
Follow the disassembly in the numerical order given. EXPLODED VIEW HARDWARE LIST
1 Eye Piece Frame (1-1 to 1-5)
2 Terminal Holder (2-1)
3 AF Module (3-1 to 3-5)
1 Eye Piece Frame 1-4
1-1
1-2 (#14)
(#23)
1-3
Mirror Box Section
(Penta Unit)
(See Page 2-13)
2Terminal Holder
1-5 (#23)
HELP 18
HELP 20
3-5
3 AF Module HELP 19
HELP 21
2-1
3-2 (#23)
3-4
3-3 (#88)
3-1 (#23)
DSLR-A300_L2
2-12
2-2-11. MIRROR BOX SECTION (PENTA UNIT)
Follow the disassembly in the numerical order given. EXPLODED VIEW HARDWARE LIST
1 Penta Unit (1-1 to 1-3)
1 Penta Unit
Refer to page 1-2 "1-5. METHOD OF EXCHANGING SI SCREEN AND
FOCUS PLATE" when SI screen or focus plate are exchanged.
Refer to page 2-24 "2-12. CLEANING PROCEDURE OF VIEWFINDER"
for method of cleaning the viewfinder.
1-2 (#117) 1-3 (#117)
1-1
Mirror Box Section
(Sub Unit-1)
(See Page 2-14)
DSLR-A300_L2
2-13
2-2-12. MIRROR BOX SECTION (SUB UNIT-1)
Follow the disassembly in the numerical order given. EXPLODED VIEW HARDWARE LIST
1 Iris Ring (1-1 to 1-9)
2 Aperture Unit (2-1 to 2-5)
3 AF Driving Unit (3-1 to 3-10)
2 Aperture Unit
Refer to page 2-18 "2-6. APERTURE
UNIT INSTALLATION" when the
aperture unit is exchanged.
Mirror Box Section
(Sub Unit-2)
2-1 (See Page 2-15)
HELP 22
2-5
2-4 (#12)
1 Iris Ring
Refer to page 2-18 "2-5. IRIS RING
REMOVAL/INSTALLATION" when 1-8
the iris ring is exchanged. 1-7 G-85
1-6 3-4
(#91)
1-2 G-85 3-8
3-9
(#92) 3-5
2-2
3-7 1-9 HELP 22 3-3
(#23) HELP 23
2-3
1-5 3-2
3-1
1-4 1-3
3-6
1-1 (#89)
3-10
(#23) 3 AF Driving Unit
DSLR-A300_L2
2-14
2-2-13. MIRROR BOX SECTION (SUB UNIT-2)
Follow the disassembly in the numerical order given. EXPLODED VIEW HARDWARE LIST
1 Charge Base Plate A Unit (1-1 to 1-11)
2 Shutter Charge Lever (2-1 to 2-12)
2-12
Refer to page 2-20 "2-9. LEVERS
AND GEARS INSTALLATION"
G-85
when you exchange parts around
the mirror charge lever.
1-1
1-3
2 Shutter Charge Lever
2-9 1-6 HELP 24
2-2
2-10 (#93) 2-3
2-1
2-8 (#93)
G-85 2-7
G-85 2-11 2-4
1-2 (#23) 2-6 (#93)
1-10 1-5 1-4
1-9 (#23)
1-7
2-5
1-11
1 Charge Base Plate A Unit 1-8 (#23)
DSLR-A300_L2
2-15
2-3. IMAGER INCLINATION ADJUSTMENT
Checking Method
1. Use the copy stand or place a mirror on the wall, and adjust the accuracy so that the camera is opposed to the mirror.
2. Use the AE master lens as an inspection lens.
3. Obtain the inclination angle with the Photoshop, and perform as follows according to the angle:
· For the angle above ± 0.90 degree, be sure to repair the camera.
· For the angle above ± 0.5 degree and below ± 0.90 degree, repair the camera according to the user's requirement level.
· For the angle below ± 0.5 degree, check again the angle to satisfy the specified value.
Adjusting Method
1. Loosen the fixed screw.
2. Adjust the inclination with the adjusting screw.
· For an image that tilts to the right, rotate the screw clockwise.
· For an image that tilts to the left, rotate the screw counterclockwise.
3. Tighten the fixed screw.
Imager Inclination Adjusting Screw
DSLR-A300_L2
2-16
2-4. SHUTTER INSTALLATION
Follow the assembly in the numerical order given.
1 Raise Main Mirror up.
Mirror Charge
Lever Up
2 Rotate Idle Gear
Don't damage
Idle Gear.
Shutter Charge
Lever Down
Boss
3 Shutter
4 Shutter Flexible Board
DSLR-A300_L2
2-17
2-5. IRIS RING REMOVAL/INSTALLATION
Removal
Rotate the iris ring clockwise, and remove it at the stop position (iris-in end).
At this time, do not rotate the iris joint gear of the Aperture Unit.
Installation
1. With the Aperture Unit set in the charge position (see "2-7. Aperture Unit Charge Position Setting" ), install it on the front
frame set.
* The Aperture Unit has been set in the charge position, if it is not removed.
However, the iris ring must be in the removed state (where the iris joint gear is not rotated).
2. Install the iris ring with it's a punch mark aligned with a line that connects the iris joint gear shaft and the optical axis center.
Optical Axis Center
Iris Joint Gear Shaft
Iris Ring
Punch Mark
2-6. APERTURE UNIT INSTALLATION
* The Aperture Unit is supplied by being set in the charge position (initial position), but if this position is disordered when the
Aperture Unit is removed, or if the charge position is to be set again, perform as follows.
* Refer to "2-7. Aperture Unit Charge Position Setting" for the confirm method at the charge position.
2-7. APERTURE UNIT CHARGE POSITION SETTING
1. Check that the Aperture Unit is in a free state.
2. After confirming that the Aperture Unit is in a free state, rotate the gear by 3 turns.
3. After rotating the gear by 3 turns, set the Aperture Unit where the holes in the gear and the Aperture Unit coincide. This
position is the charge position.
* Refer to "2-8. Aperture Unit Free Position Setting" for the setting and the confirm method at the free position.
DSLR-A300_L2
2-18
2-8. APERTURE UNIT FREE POSITION SETTING
1. Set the Aperture Unit to a free position once, if the gear was rotated accidentally and the charge position is disordered, or if
the charge position was shifted during disassembly.
In a free state, the edge of this spring In a free state, a hole in the gear almost
will move up and down about 1 mm if coincides with a hole in the Aperture Unit.
the gear is moved a little.
Gear rotating As viewed from gear
Gear rotating
direction to set (Hole in the gear)
direction to make
the charge position the unit free
If the edge of spring is located downward,
rotate the gear in the arrow direction to
search a free position.
First, check the spring edge position. * In a free position, the edge of spring is
located upward.
Note: The spring is deformed and cannot
be used if the gear is rotated too
much from a free state.
DSLR-A300_L2
2-19
2-9. LEVERS AND GEARS INSTALLATION
Follow the assembly in the numerical order given.
2-9-1. MIRROR CHARGE/SHUTTER CHARGE LEVERS INSTALLATION
1 Mirror Charge Lever Assy - Levers Position -
Mirror Charge Lever Assy
4 Screw (#93)
3 Charge Base
Plate C Assy
Main Mirror
Holder Boss
2 Shutter Charge
Lever Spring
Shutter Charge
Lever
2-9-2. SHUTTER CAM/MIRROR CHARGE/IDLE GEARS INSTALLATION
3 Idle Gear - Gears Position -
Mirror Charge Cam Gear
Hole
Hole
Hole
2 Mirror Charge
Cam Gear Mark
Main Mirror
1 Shutter Cam Holder Down
Gear Assy
Idle Gear
Hole
Mirror Box
Rib
Hole
Shutter Cam Gear Assy
DSLR-A300_L2
2-20
2-9-3. CHARGE BASE PLATE B INSTALLATION
1 Charge Base Plate B Assy
2 Screw (#93)
Hole
Hole
2-9-4. MIRROR DRIVING (SP) INSTALLATION
3 Screw (#93) - Spring Position -
2 Mirror Driving
(SP) Retainer Mirror Charge Cam Gear
1 Mirror Driving
(SP)
Mirror Driving (SP)
DSLR-A300_L2
2-21
2-10.GREASE APPLICATION AREA
Grease uses G-85 (J-6082-626-A).
Ring (SP) Ring Roller (C) Shaft
Grease
Grease
Shutter Cam Gear Assy Mirror Charge Cam Gear
Grease Grease
Front Frame Assy
Grease
Grease
Grease
Grease
Grease
DSLR-A300_L2
2-22
2-11.CLEANING PROCEDURE OF OLPF
Make it to Cleaning Mode of Power On/Set Up Menu by using the AC power supply.
(It comes to Mirror Up/Shutter Open)
Note: Use the AC power supply absolutely.
1. Soak a small amount of EE3310 (Liquid cleaner) after wrapping the cleaning cloth (J-6082-636-A) around the cleaning
jig (J-6082-635-A).
Cut
Cleaning Cloth
(J-6082-636-A)
EE3310
Cleaning Jig
(J-6082-635-A)
2. Surface of OLPF is cleaned. (Note that there is no wipe irregularity)
3. Power off. (It comes to Shutter Close/Mirror Down)
Note: The cleaning of the OLPF must use a specified jig. If the specified jig is not used, the low pass filter might be
damaged.
OLPF
DSLR-A300_L2
2-23
2-12.CLEANING PROCEDURE OF VIEWFINDER
Note: Confirm it is the same before the following item cleans it after cleaning the
viewfinder.
1. Digital zoom check
2. Inclination of Live view image
3. Resolution of Live view image in surrounding
1 Remove the connection of eight flexible board. 3 Remove the diopter adjust cam cover and the
diopter adjust click plate after remo