Sony DSLR-A850 Service Manual ▷ View online
DSLR-A850_L2
Sony EMCS Co.
SERVICE MANUAL
Revision History
LEVEL
2
Ver.
Date
History
Contents
985270731.pdf
2009F0500-1
© 2009.6
Published by Kohda TEC
Ver. 1.0 2009.06
DIGITAL SINGLE LENS REFLEX CAMERA
The components identified
by mark or dotted line with
mark are critical for safety.
Replace only with part number
specified.
by mark or dotted line with
mark are critical for safety.
Replace only with part number
specified.
Les composants identifiés par
une marque sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
une marque sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Hong Kong Model
Korea Model
—
Official Release
2009.06
1.0
9-852-707-31
DSLR-A850
Differences Manual
This Service Manual covers only differences from DSLR-A900 (Level 2).
In performing repair, refer to DSLR-A900 Service Manual (Level 2) (9-852-609-3
In performing repair, refer to DSLR-A900 Service Manual (Level 2) (9-852-609-3
[]) as well as this manual.
• Main differences:
Cabinet
Parts
Penta
Unit
DSLR-A850_L2
– 2 –
SPECIFICATIONS
– ENGLISH –
Camera
[System]
Camera Type
Digital Single Lens Reflex
Camera and
interchangeable lenses
Camera and
interchangeable lenses
Lens
All of
α Lens (except for
DT lens*)
* Using a DT lens is not guaranteed
because the corners of the field are
darkened and the camera does not
meet the primary AE performance
standard. [APS-C size capt.] is
automatically selected.
darkened and the camera does not
meet the primary AE performance
standard. [APS-C size capt.] is
automatically selected.
[Image sensor]
Total pixel number of camera
Approx. 25 720 000 pixels
Effective pixel number of camera
Approx. 24 610 000 pixels
Image format
35 mm (35.9×24.0) CMOS
sensor
sensor
ISO sensitivity (Recommended
exposure index)
AUTO, 100 to 6400
AUTO, 100 to 6400
[SteadyShot]
System
Sensor-Shift mechanism
SteadyShot Compensation capability
Approximately 2.5 to 4 EV
decrease in shutter speed
(varies according to
shooting conditions and
lens used)
decrease in shutter speed
(varies according to
shooting conditions and
lens used)
[Anti-Dust]
System
Charge protection coating
on Low-Pass Filter and
image sensor-Shift
mechanism
on Low-Pass Filter and
image sensor-Shift
mechanism
[Viewfinder]
Type
Fixed eye-level system
with pentaprism
with pentaprism
Focusing Screen
Spherical Acute Matte
(exchangeable, option)
(exchangeable, option)
Frame coverage
Approx. 0.98
Magnification
0.74 × with 50 mm lens at
infinity, –1 m
infinity, –1 m
–1
Eye point
Approximately 20 mm
from the eyepiece
from the eyepiece
Diopter Adjustment
–3.0 to +1.0 m
–1
[Auto Focus System]
System
TTL phase-detection
system, CCD line sensors
(with center dual cross-hair
sensor, F2.8 sensor)
system, CCD line sensors
(with center dual cross-hair
sensor, F2.8 sensor)
Ranging point
9 points and 10
supplementary ranging
points
supplementary ranging
points
Sensitivity Range
0 to 18 EV (at ISO 100
equivalent)
equivalent)
AF illuminator
Approx. 1 to 7 m (3.3 to
23 feet)
23 feet)
[Exposure]
Metering Cell
40-segment honeycomb-
pattern SPC
pattern SPC
Metering Range
0 to 20 EV (2 to 20 EV
with Spot metering), (at
ISO 100 with F1.4 lens)
with Spot metering), (at
ISO 100 with F1.4 lens)
[Shutter]
Type
Electronically-controlled,
vertical-traverse, focal-
plane type
vertical-traverse, focal-
plane type
Speed range 1/8000 second to 30
seconds, bulb
Flash sync speed
1/250 second (SteadyShot
deactivated),
1/200 second (SteadyShot
activated)
deactivated),
1/200 second (SteadyShot
activated)
[Recording media]
CompactFlash card
(TypeI,II), Microdrive,
“Memory Stick Duo”
media
(TypeI,II), Microdrive,
“Memory Stick Duo”
media
[LCD monitor]
LCD panel 7.5 cm (3.0 type) TFT
drive
Total number of dots
921 600 (640 × 3 (RGB) ×
480) dots
480) dots
[LCD monitor]
With backlighting
[Power, general]
Used battery pack
Rechargeable battery pack
NP-FM500H
NP-FM500H
[Others]
PictBridge
Compatible
Exif Print
Compatible
PRINT Image Matching III
Compatible
Dimensions Approx. 156.3 × 116.9 ×
81.9 mm (6 1/4 × 4 5/8 ×
3 1/4 inches) (W/H/D,
excluding protrusions)
3 1/4 inches) (W/H/D,
excluding protrusions)
Mass
Approx.850 g (1 lb 14 oz)
(without batteries, memory
card and body accessories)
(without batteries, memory
card and body accessories)
Operating temperature
0 to 40°C (32 to 104°F)
(When using the
Microdrive: 5 to 40°C (41
to 104°F))
(When using the
Microdrive: 5 to 40°C (41
to 104°F))
Exif
Exif Ver.2.21
USB communication
Hi-Speed USB (USB 2.0
compliant)
compliant)
BC-VM10 Battery charger
Input rating 100 V – 240 V AC, 50/60
Hz
Output rating
8.4 V DC, 750 mA
Operating temperature range
0 to 40°C (32 to 104°F)
Storage temperature range
–20 to +60°C (–4 to
+140°F)
+140°F)
Maximum dimensions
Approx. 70 × 25 × 95 mm
(2 7/8 × 1× 3 3/4 inches)
(W/H/D)
(2 7/8 × 1× 3 3/4 inches)
(W/H/D)
Mass
Approx. 90 g (3.2 oz)
Rechargeable battery pack
NP-FM500H
NP-FM500H
Used battery
Lithium-ion battery
Maximum voltage
DC 8.4 V
Nominal voltage
DC 7.2 V
Maximum charge current
2.0 A
Maximum charge voltage
DC 8.4 V
Capacity
Typical
11.8 Wh (1 650 mAh)
Minimum 11.5 Wh (1 600 mAh)
Maximum dimensions
Approx. 38.2 × 20.5 × 55.6
mm (1 9/16 × 13/16 × 2 1/4
inches) (W/H/D)
mm (1 9/16 × 13/16 × 2 1/4
inches) (W/H/D)
Mass
Approx. 78 g (2.8 oz)
Design and specifications are subject
to change without notice.
to change without notice.
DSLR-A850_L2
– 3 –
1-6. ペンタホルダユニットの交換方法
ペンタホルダユニット(サービス)の視野率は100%に設定されています。
DSLR-A850のペンタホルダユニットを交換する際は、ペンタホルダユニット(サービス)
DSLR-A850のペンタホルダユニットを交換する際は、ペンタホルダユニット(サービス)
(A-1729-217-A)とVM視野枠(98%
用)
(4-148-525-01)を同時に用意し、視野率を98%へ変更する必要があります。
以下の手順に従って、ペンタホルダユニット(サービス)のVM視野枠を交換してください。
1 ワッシャ(0.8-2.5)を3個外す。
2 視野枠付勢スプリングをVM視野枠から外す。
3 VM視野枠を外す。
1 ワッシャ(0.8-2.5)3個
2 視野枠付勢スプリング
3 VM視野枠
4 交換するVM視野枠が視野率98%用であることを確認する。
視野率100%用
視野率98%用
穴1個
平ら
ギザギザ
穴2個
5 VM視野枠を焦点板ホルダ軸方向へ突き当てながら、調整ピン3箇所にあわせて取り付ける。
6 視野枠付勢スプリングをVM視野枠にかける。
7 ワッシャ(0.8-2.5)を3個取り付ける。
3 ワッシャ(0.8-2.5)3個
2 視野枠付勢スプリング
1 VM視野枠
調整ピン3箇所
焦点板ホルダ軸
1. SERVICE NOTE
1-6. METHOD OF PENTA HOLDER UNIT
The view rate of the PENTA HOLDER UNIT (SERVICE) is set to 100%.
When the PENTA HOLDER UNIT of DSLR-A850 is replaced, it is necessary to prepare the PENTA HOLDER UNIT (SERVICE) (A-1729-
217-A) and the VM FINDER VIEW FRAME (4-148-525-01) at the same time and to change the view rate to 98%.
Please replace the VM FINDER VIEW FRAME of the PENTA HOLDER UNIT (SERVICE) according to the following procedures.
When the PENTA HOLDER UNIT of DSLR-A850 is replaced, it is necessary to prepare the PENTA HOLDER UNIT (SERVICE) (A-1729-
217-A) and the VM FINDER VIEW FRAME (4-148-525-01) at the same time and to change the view rate to 98%.
Please replace the VM FINDER VIEW FRAME of the PENTA HOLDER UNIT (SERVICE) according to the following procedures.
1 Remove three washers (0.8-2.5).
2 Remove the view frame tension spring from VM finder view frame.
3 Remove the VM finder view frame.
1 Three Washers (0.8-2.5)
3 VM Finder View Frame
2 View Frame Tension Spring
4 The VM view frame for the replacing must confirm it for the view rate 98%.
One Hole
for the View Rate 100%
for the View Rate 98%
Flat
Two Holes
Burr
5 Install it in the view frame adjustment pin three places additionally while bumping the VM finder view frame to the focus plate holder
shaft.
6 Install the view frame tension spring on VM finder view frame.
7 Install three washers (0.8-2.5).
3 Three Washers (0.8-2.5)
1 VM Finder View Frame
Three View Frame Adjustment Pins
Focus Plate Holder Shaft
2 View Frame Tension Spring
– ENGLISH –
– JAPANESE –
DSLR-A850_L2
– 4 –
Ref. No.
Part No.
Description
Ref. No.
Part No.
Description
Ref. No.
Part No.
Description
Ref. No.
Part No.
Description
56
X-2319-520-1 CV REAR COVER ASSY
101
A-1557-714-A CV TOP COVER BLOCK ASSY
111
X-2319-505-1 CT MODE DIAL ASSY
151
A-1565-987-A AM-015 BOARD, COMPLETE (SERVICE)
301
X-2319-519-1 CV FRONT COVER ASSY
* 302
4-110-991-01
CV DECORATION RING
56
X-2349-601-1 CV REAR COVER ASSY
101
A-1730-235-A CV TOP COVER BLOCK ASSY
111
X-2349-599-1 CT MODE DIAL ASSY
151
A-1731-639-A AM-015 BOARD, COMPLETE (SERVICE)
301
X-2349-600-1 CV FRONT COVER ASSY
* 302
4-148-312-01
CV DECORATION RING
502
A-1556-575-A VO PENTA UNIT (Including LED901
(TOKO LED) and AE-033 flexible board)
502
A-1730-251-A VO PENTA UNIT (Including LED901
(TOKO LED) and AE-033 flexible board)
513 3-338-645-31 WASHER
(0.8-2.5)
* 514
4-148-525-01
VM FINDER VIEW FRAME (Note 4)
5-3
5-12
5-4
5-5
5-8
DSLR-A900
DSLR-A850
Page
DSLR-A850
Page
5-1. EXPLODED VIEWS
5. REPAIR PARTS LIST
Checking supplied accessories.
Note: This item is supplied with the unit as an accessory,
but is not prepared as a service part.
Battery Charger
BC-VM10
0 1-479-742-41
BC-VM10
0 1-479-742-41
(EXCEPT US, CND)
0 1-479-742-51 (US, CND)
Power Cord
0 1-555-074-91 (AUS)
0 1-555-074-91 (AUS)
0 1-790-107-61 (US, CND)
0 1-832-169-41 (UK, HK)
0 1-833-892-21 (KR)
0 1-834-482-21 (AEP, E)
Conversion 2P Adaptor
0 1-569-008-12 (E)
0 1-569-008-12 (E)
Rechargeable Battery Pack
NP-FM500H
NP-FM500H
(Note)
USB Cable
1-834-311-41
Video Cable
1-834-312-11
Accessory Shoe Cap
2-688-767-02
CD-ROM
(Application Software for
(Application Software for
α camera)
4-149-121-01
Operating instructions: Read This First
4-149-134-12 (ENGLISH)
4-149-134-22 (FRENCH, ITALIAN)
4-149-134-32 (SPANISH, PORTUGUESE)
4-149-134-42 (GERMAN, DUTCH)
4-149-134-52 (TRADITIONAL CHINESE, SIMPLIFIED CHINESE)
4-149-134-62 (RUSSIAN)
4-149-134-72 (ARABIC, PERSIAN)
4-149-134-82 (KOREAN)
4-149-134-22 (FRENCH, ITALIAN)
4-149-134-32 (SPANISH, PORTUGUESE)
4-149-134-42 (GERMAN, DUTCH)
4-149-134-52 (TRADITIONAL CHINESE, SIMPLIFIED CHINESE)
4-149-134-62 (RUSSIAN)
4-149-134-72 (ARABIC, PERSIAN)
4-149-134-82 (KOREAN)
Body Cap
2-688-728-02
Body Cap Seal
2-894-387-01
Remote Commander Clip
3-273-459-11
Shoulder Strap
4-111-307-01
Eyecup
X-2319-492-1
The components identified
by mark or dotted line with
mark are critical for safety.
Replace only with part number
specified.
by mark or dotted line with
mark are critical for safety.
Replace only with part number
specified.
Les composants identifiés par
une marque sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
une marque sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
: Points added portion.
503
(including LCD902
(finder LCD) and
IF-161 flexible
board)
(finder LCD) and
IF-161 flexible
board)
ns
ns
514
(Note 4)
513
512
513
#5
#59
504
(Note 1)
505
ns
ns
511
(Note 3, 4)
502
(including LED901 (TOKO LED) and
AE-033 flexible board)
AE-033 flexible board)
*
(
(
_
Note 4: Refer to page 3 “1-6. METHOD OF PENTA HOLDER UNIT”
when panta holder unit is exchanged.
Note 4:
ペンタホルダユニットを交換する際は,3ページの「1-6.
ペンタホルダユニットの交換方法」を参照してください。
Note: This exploded view has been changed in the DSLR-A900 service manual level 2 supplement-2 (9-852-609-83).
DSLR-A900
DSLR-A850
Display