Nikon D50 Istruzioni operative

作成承認印配布許可印

VBA12001-R.3668.A

Copyrigh ｃ2005 by Nikon Corporation.

Printed in Japan June 2005

VBA12001

REPAIR MANUAL

Ｍ

サービス

計画課

- M1 ･ -

VBA12001-R.3668.A

Type Single-lens reex digital camera with interchangeable lenses

Effective pixels 6.1 million

CCD 23.7 × 15.6 mm; total pixels: 6.24 million

Image size (pixels) • 3008 × 2000 (Large) • 2256 × 1496 (Medium)

• 1504 × 1000 (Small)

Lens mount Nikon F mount (with AF coupling and AF contacts)

Compatible lenses*

Type G or D AF Nikkor All functions supported

Micro Nikkor 85 mm

f/2.8D

All functions supported except autofocus and some exposure

modes

Other AF Nikkor†All functions supported except 3D color matrix metering II

AI-P Nikkor All functions supported except 3D color matrix metering II and

autofocus

Non-CPU Can be used in mode

, but exposure meter does not function;

electronic range nder can be used if maximum aperture is f/5.6

or faster

* IX Nikkor lenses can not be used † Excluding lenses for F3AF

Picture angle Equivalent in 35-mm format is approximately 1.5 times lens

focal length

Viewnder Fixed-eyelevel penta-Dach-mirror type

Diopter adjustment –1.6 – +0.5 m–1

Eyepoint 18 mm (–1.0 m–1)

Focusing screen Type B BriteView clear matte screen Mark V with superimposed

focus brackets

Frame coverage Approximately 95% of lens (vertical and horizontal)

Magnication Approximately 0.75× (50-mm lens at innity; –1.0 m–1

Reex mirror Quick return

Lens aperture Instant return with depth-of-eld preview

Focus-area selection Can be selected from 5 focus areas

Lens servo • Autofocus (AF): Instant single-servo AF(AF-S);continuous-

servo AF (AF-C); auto AF-S/AF-C selection(AF-A); predictive

focus tracking automatically activated according to subject status

• Manual focus (M)

Specications

- M2 ･ -

VBA12001-R.3668.A

Autofocus TTL phase detection by Nikon Multi-CAM900 autofocus module

with AF-assist illuminator (range approximately 0.5–3.0 m / 1´8

″

–

9´10

″

)

Detection range –1 – +19 EV (ISO 100 at 20 °C/68 °F)

AF-area mode Single-area AF, dynamic-area AF, dynamic-area AF with closest

subject priority

Focus lock Focus can be locked by pressing shutter-release button halfway

(single-servo AF) or by pressing AE-L/AF-L button

Exposure

Metering Three-mode through-the-lens (TTL) exposure metering

Matrix 3D color matrix metering II (type G and D lenses); color matrix

metering II (other CPU lenses); metering performed by 420-

segment RGB sensor

Center-weighted Weight of 75% given to 6, 8, 10, or 12-mm circle in center of

frame

Spot Meters 3.5-mm circle (about 2.5% of frame) centered on active

focus area

Range

(ISO 100 equivalent, f/1.4 lens,

20 °C/68 °F)

0 – 20 EV (3D color matrix or center-weighted metering)

2 – 20 EV (spot metering)

Exposure meter coupling CPU coupling

Exposure control

Operating mode Digital Vari-Program（ auto, portrait, landscape,

Child, close up, sports, night portrait),

programmed auto (

) with exible program; shutter-priority

auto (

); aperture priority auto (

); manual (

)

Exposure compensation　 –5 – +5 EV in increments of 1/3 or  EV

Bracketing Exposure and / or ash bracketing (up to ±2EV over 3

exposures)

Exposure lock Luminosity locked at detected value with AE-L/AF-L button

Shutter Combined mechanical and CCD electronic shutter

Speed 30 – 1/4000 s in steps of 1/3 or  EV, bulb, remote

Sensitivity 200 – 1600 (ISO equivalent) in steps of 1/3 EV

White balance Auto (TTL white-balance with 420 pixels RGB sensor), six

manual modes with preset white balance

Bracketing 3 exposures in increments of 1, 2, or 3

- M3 ･ -

VBA12001-R.3668.A

Built-in Speedlight •, , , , auto flash with auto pop-up

•

: manual pop-up with button release

Guide number

(m / ft at 20 °C/68 °F)

• ISO 200: approximately 15/49 (manual 17/56)

• ISO 100: approximately 11/36 (manual 12/39)

Flash

Sync contact X-contact only; ash synchronization at up to 1/500 s

Flash control

TTL TTL ash control by 420-segment RGB sensor (CPU lenses only)

• Built-in Speedlight: i-TTL balanced ll-ash for digital SLR,

or standard i-TTL ash for digital SLR (spot metering or mode

dial set to M)

• SB-800 or 600: i-TTL balanced ll-ash for digital SLR, or

standard i-TTL ash for digital SLR (spot metering)

Auto aperture Available with SB-800 with CPU lens

Non-TTL auto Available with such Speedlights as SB-800, 80DX, 28DX, 28,

27, and 22s

Range-priority manual Available with SB-800

Sync modes • 、、、: front curtain sync, red-eye reduction

• : slow sync, slow sync with red-eye reduction

•

、

: front curtain sync and red-eyereduction available

with optional Speedlights

•

: front curtain sync, slow sync, rear-curtain sync,

red-eye reduction, slow sync with red-eye reduction

Flash compensation –3 – +1 EV in increments of 1/3 or  EV

Accessory shoe Standard ISO hot-shoe contact with safety lock

Creative Lighting

System

Supports Flash Color Information Communication and FV lock

with built-in Speedlight, SB-800, and SB-600. SB-800 and 600

also support Advanced Wireless Lighting.

Storage

Media SD (Secure Digital) memory cards

File system Compliant with Design Rule for Camera File System (DCF)

2.0 and Digital Print Order Format (DPOF)

Compression • NEF (RAW): compressed 12-bit

• JPEG: JPEG baseline-compliant

- M4 ･ -

VBA12001-R.3668.A

Self-timer Electronically controlled timer with 2 – 20 s duration

Monitor 2.0

″

, 130,000-dot, low-temperature polysilicon TFT LCD with

brightness adjustment

Video output Can be selected from NTSC and PAL

External interface USB 2.0 Hi-speed

Tripod socket 

″

(ISO)

Firmware upgrades Firmware can be upgraded by user

Supported languages Chinese (Simplied and Traditional), Dutch, English, French,

German, Italian, Japanese, Korean, Portuguese, Russian,Spanish,

Swedish

Power source • One rechargeable Nikon EN-EL3 Li-ion battery;

charging voltage (MH-18a quick charger or optional MH-19

multi charger): 7.4 V DC

• EH-5 AC adapter (available separately)

Dimensions (W × H × D) Approximately 133 × 102 × 76 mm (5.2

″

× 4.0

″

×3.0

″

)

Weight Approximately 540 g (1 lb 3 oz) without battery, memory card,

body cap, or monitor cover

Operating environment

Temperature 0 – 40 °C (+32 – 104 °F)

Humidity Less than 85% (no condensation)

• Unless otherwise stated, all gures are for a camera with a fully-charged battery operating at an

ambient temperature of 20 °C (68 °F).

• Nikon reserves the right to change the specications of the hardware and software described this

manual at any time and without prior notice. Nikon will not be held liable for damages that may

result from any mistakes that this manual may contain.

- Ｄ1 ･ -

VBA12001-R.3668.A

Points to notice for Disassembly / Assembly

�

内部に高電圧部あり。カバーを外す時は感電に注意すること。

カバーを外した後は、修理指針の指示に従ってメインコンデン

サーの放電を必ず行うこと。

警告

Note:

①　When disassembling/(re)assembling, be sure to use the conductive mat (J5033) and wrist strap (J5033-5)

for static protection of electrical parts.

②　Before disassembling, be sure to remove batteries or AC power wires.

③　When disassembling, make sure to memorize the processing state of wires and FPC, screws to be xed

and their types, etc. 　　　　

④　Because the low pass lter of the imaging CCD PCB is easily damaged, handle it with enough care.

　Points to notice for Lead-free solder products

　・ Lead-free solder is used for this product.

　・ For soldering work, the special solder and soldering iron are required.

　・ Do NOT mix up lead-free solder with traditional solder.

WARNING

Due to an internal high voltage area, take extra care not to

get an electric shock when detaching covers..

After removing covers, be sure to discharge the main

condenser according to the instructions of repair manuals.

Note:

When "Seprating Front and Rear bodies","Disassembling Image PCB",and"Disassembling Bayonet",

be sure to perform"Reset of AF defocus compensation amount"by D2X adjustment software after reassembly.

- Ｄ2 ･ -

VBA12001-R.3668.A

Disassembly

1. Separation of Front and Rear Bodies

Bottom Cover

#5692

#5697

#5677×7

Bottom cover

・ Take out the screws (#5692 and #5697) and 7 screws (#5677).

・ Remove the bottom cover.

Rear cover

・ Take out 4 screws (#623).

・ Cover to remove the rear cover.

Note: Remove the rear cover slowly so as not to cut TFT-PCB

connection FPC of the upper portion of the cover.

#623×4

Rear cover

- Ｄ3 ･ -

VBA12001-R.3668.A

SB pop-up

Approx.2cm

Approx. 4cm

・ Remove TFT-PCB connection FPC from the connector.

・Cut the tracing lm sheet, etc into the below size of piece. Then insert it into

the clearance of the top cover pop-up part as shown right, and pop it up by

sliding the sheet in the direction of the arrow.

TFT-PCB connection FPC

- Ｄ4 ･ -

VBA12001-R.3668.A

Discharge Main condenser

・Discharge the main condenser from its both terminal. #627 × 3

Main

condenser

2KΩ/5W

�

内部に高電圧部あり。カバーを外す時は感電に注意すること。

カバーを外した後は、修理指針の指示に従ってメインコンデン

サーの放電を必ず行うこと。

警告

Covers

・ First, remove the front cover (#B5024).

#B5028

WARNING

Due to an internal high voltage area, take extra care not to get an

electric shock when detaching covers.

After removing the covers, be sure to discharge the main

condenser according to the instructions of repar manuals.

#635

#659

#5124

#5121

#611×2

#635

#26

#B5024

AUTO

#611 × 2

- Ｄ5 ･ -

VBA12001-R.3668.A

DG shield plate

#78

#627×3

DG-PCB unit

・ Remove 5 connectors.

・ Unsolder 2 reset SW wires.

・ Take out 2 screws (#663) and the screw (#627) to remove the DG-PCB unit (#B2031).

・ Remove 2 soldering bridges.

・ Take out 3 screws (#627).

・ Remove the DG shield plate (#78).

Soldering bridges

Green

Yellow

: Reset SW wire

#663×2

#627

#B2031

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