Nikon D300 Operating instructions

作成承認印配布許可印

VBA20001-R.3720.A

Printed in Japan NOV.2007

VBA20001

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REPAIR MANUAL

Ｍ

サービス

計画課

INC

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VBA20001-R.3720.A

Caution:

①　In disassembly/(re)assembly, be sure to use conductive mat (J5033) and wrist strap (J5033-5), in

order to protect electric parts from static electricity.

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

　　　③　

their types, etc.

　　　④　.

　　　⑤　 is indicated in this manual when NK screw is used. Usually the same "NK" screw can be used





ＮＫ

Points to notice for Disassembly and Assembly

WARNING



covers.

After removing covers, besure to discharge the main

condenser according to the instructions of repair manuals.

Caution:

When "Separation of Front body from Rear body", "Disassembly of CCD/FPC unit" and

"Disassembly of Bayonet" are performed, be sure to carry out "RESETAF-DEFOCUS

COMPENSATION" of the D300 adjustment software after assembly.

　

　・ 

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

　・ 

　・ Use the special soldering iron respectively for lead-free solder and lead solder.

They cannot be used in common.

INC

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VBA20001-R.3720.A

#1647

#B60

#B447

#B63

#B61

・

#1642×2 #394

#392

IF lid

・Take out the two screws (#1642).

・Remove the IF lid (#392).

※

Disassembly





INC

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VBA20001-R.3720.A

Bottom cover / Battery lid unit

・    upwards,,

and remove as if pulling it out.

・

screws (#1509).

・Remove the bottom cover.

#1509×2

Battery cover (#B801)

#1571×2

#25

#807

#68

#1519×4

#806

#982

#981

#983

#1550 #1550 #1556 #1556

#1550

#1556 #1556

Bottom cover

INC

- Ｄ  ･ -

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VBA20001-R.3720.A

Rear SW FPC, Retainer plate, and other small parts

427 1632x2

423

424

1K602-799 (5)

1K010-712x2 (10)

1K602-800 (5)

1K683-264 (5)

425

1K360-399 (5)

439

1K602-803 (5)

429

1K233-246 (5)

#987

#923

#443

#923

#921

#1518×2

#442

#B423

#1628×2

#445

CF cover, sponge, other small parts

・Take out the two screws (#1518).

Rear cover unit

・Take out the two screws (#1553), two screws (#1547)

and one screw (#1551).

・Remove the rear cover slowly, and disconnect the three

FPCs from each connector.

#1551

#1547×2 #1553×2

#1020

#456

#B478 #1630

#1512×3

#422

#1625×3

#476

INC

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VBA20001-R.3720.A

429

1K233-246 (5)

430

1K104-016 (5)

　#465 #1511×2

#475

　#426

　#455

#962

#961

#924

　#986

#985

　#467 #1538×2

　#469

#468

#481

#474

Selector button, Sponge, and other small parts

#431

#433

#488

#492

#487

#1627

#489#1629

#1627×2

　#484

#1546×2

#491

#1571

　#486

　#493

#434×2

#435×2

#1057

#432

#1626×3

TFT monitor and other small parts

INC

- Ｄ  ･ -

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VBA20001-R.3720.A

Soldering bridge

#1515

#1546×4

DG PCB shield plate

・Take out the four screws (#546) and two screws (#1515).

・Remove the two soldering bridges that joint DG-PCB and DG-PCB shield plate.

・Remove the DG-PCB shield plate.

#1510×2

I/F cover

・Take out the two screws (#1510) and remove

the I/F cover (#B28).

・Remove the conduct plate (#695).

#B28

#695

2K 5W

Discharge of Main condenser

DG-PCB shield plateshield plate

WARNING



covers.

After removing covers, besure to discharge the main

condenser according to the instructions of repair manuals.

INC

- Ｄ  ･ -

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VBA20001-R.3720.A

Image sensor holder unit

・Take out the three screws (#1543) and remove the CF base plate (#1018).

・Unsolder the DR base plate (#1014) at four places.

・Take out the three screws (#1639) and remove the

image sensor holder unit (#B10521).

#B10521

#1639×3

#1014

DG-PCB

・Remove the harnesses (#1075, #1074, and #1073) from each connector.

・Disconnect the FPC (#1027#1027､#1040､#1041､#1039､#1038) from each connector.) from each connector.

・Take out the screw (#1546) and remove [#B1017].

#B1017 #1546

#1041

#1075

#1073

#1040

#1039

#1074

#1027

#1038

CF base plate unit

#1543×3

Orange

Gray

Red

Black

DR base plate

#1018

#1038

INC

- Ｄ  ･ -

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VBA20001-R.3720.A

・Remove the dioptor-adjustment knob cover plate (#850), and take out the screw (#1622).

・Remove the dioptor-adjustment knob (#852), drip-proof sponge (#857) and drip-proof collar (#851).

・Raise the built-in speedlight, and take out the two screws (#1548), two screws (#1547), three screws (#1555)

and two screws (#1511).

・Remove the four solders of the DI base plate (#1029).

Top cover unit

Removal of Top cover

Connection-FPC

#1511×2

#1547×2 #1555

#1555

Raise (pop-up) here.

Dioptor adjustment knob

#851

#857

#852

#1622

#850

Brown

Yellow

Black

Blue

DI base plate

(#1029)

#1548×2

・

from the connector.

INC

- Ｄ  ･ -

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VBA20001-R.3720.A

#1014

　#1541×2

　#811

#690

　#1502

#1537×2

　#1502×2

　#1541

#691

#688

#769

#439

　#1027

#B687 　#15337

DR base plate and other small parts

INC

- Ｄ 0 ･ -

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VBA20001-R.3720.A

Command dial, Shoe base and other small parts

SB-PCB

・Disconnect the FPC from the connector.

・

the wire of the synchro-terminal.

・

Take out the screws (#1511, #1535, and #1541),

and remove the SB-PCB.

#318

#316

Shoe base

・Take out the four screws (#321).

・Remove the four solders of the shoe base.

#B726 #1571×2

#B725

#1544×2

#1033

#958

#1541

#1511

#1535

#1565

#324

#323

#517 #1541

#708

#701

#702

#B317

#920

#972

#321×4

#948×2

#B735

#1605

※SB-PCB soldering position

Green　Sync. terminal

Black

Blue

Yellow

Brown

Black

Brown

Blue

Green

Orange

Gray

DI base plate



FPC

Soldering bridge

Solder

Command dial/ Release-SW

・Unsolder the release-SW (#B735), command

dial (#B726)(#B725), and remove the soldering

bridges, then remove the FPC (#1033).

・Take out the two screws (#1571) and two screws

(#1544), and remove the command dial.

・Take out the screw (#1605) and remove the

release-SW.

INC

- Ｄ  ･ -

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VBA20001-R.3720.A





#787

#704

#1053

#707×2

#706

#705 #973

#1003

#730

#955

#974 #39

#911

#731

#1540

#1560 #1540

#753

#750

#1606

#746 #1537×2

#765

#912

#913

#929

#1544×3

#703

#1547×2

#747

#780

#781

#1652

#B745 #914

#1028

#B782

#1648

#743

#742

#734

#733

#732

#784

Red

Yellow

Black

#1557×2

#748×2

#1608×2

Metering mode dial, Power dial and other small parts

・Unsolder the three wires .

・Take out the screw (#1606) and remove the spring (#750).

・Take out the two screws (#1547), three screws (#1544), two

screws (#1540) and one screw (#1560).

・

Compensation/mode button support plate (#731).

・Disconnect the mode dial FPC from the connector, and



Red

Yellow

Black

#1003

Mode dial FPC

INC

- Ｄ  ･ -

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VBA20001-R.3720.A

#301

#B302

#303

#322

#796

#513

#1601

#305

#796 #322

#307

#1623×2

#770×2

#306

#308

#309 #310

#312

#1565

#188

#917A ～C

#765×2

#766×2

SB case, Synchro-terminal and other small parts

#1601

INC

- Ｄ  ･ -

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VBA20001-R.3720.A

Mode dial, Eyelet and other small parts

・Unsolder the synchro-terminal lead wire (#1107).

・Take out the screw (#1532) and remove the synchro terminal (#50).

・Take out the one screw (#1571) and two

screws (#1609), and remove the mode dial

FPC unit (#B505).

Synchro-terminal

Mode dial / Trefoil buttonTrefoil button

QUAL

ISO

Soldering bridge Solder

#502

#501

#1026

#516

#503

#788

#B43

#B44

#1659

#966

#327 #515

#505

#514

#1025

#1659

#968 #967

#967

#970

#508

#509

#510

#1544×2

#1609

#1571

#1574

#B502

#B504

#B505

#50

#1107

#1532

#518

#519

#504

#507

#1533

#512

#511

#1640×2

Mode dial FPC

・Remove the soldering bridges of the FPC (#1025) and [#1026].

・Take out the screw (#1574) and remove the mode dial unit (#B504) and the

trefoil button unit (#B502).

INC

- Ｄ  ･ -

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VBA20001-R.3720.A

Main PCB unit

・

main PCB (#1001).

・Disconnect the FPCs (#1030,

#1009, #1005) and the shutter-

FPC from each connector.

・Take out the three screws (#1616),

and remove the main PCB

(#B1001) and the conduction lug

plate (#775).

#1543×3

※Remove the two solders of the buzzer

wires from the FPC (#B1005).









Shutter-FPC

#B57 #1644

#58

#952

#775

#1065

#1616×3

#1045

Main PCB

(#B1001)

#1619×2 #B861

Eyepiece mold unit

・Take out the two screws

(#1619).

・Remove the eyepiece mold

unit (#B861).#B861).

Main-PCB (#B1001)

#1009

#1005

#1030



#B1005

INC

- Ｄ  ･ -

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VBA20001-R.3720.A

Dioptor adjustment gear case

・Take out the screw (#1526) and remove the dioptor

adjustment gear case (#B855).

・Remove the FPC (#1042) from the connector.

・

two screws (#1531).

・Remove the front body from the rear body.

#B855

#1526

#1572

#1575×6



#1042

#1047

#1525

#1531×2

・Disconnect the two FPCs from

each connector.

・Take out the four screws (#1612).

・

3. Front body #1612×2

#B831

2. Separation of Front body from Rear body

INC

- Ｄ  ･ -

logo�Q0310�forGraphic

070509�Gdesign�ito

VBA20001-R.3720.A

AE FPC unit

#B1006

#883×3

#933

#884×3

#B882

#1617×3

・Disconnect the FPC from the connector.

・Take out the three screws (#1617).

・Remove the AE FPC unit.

Eyepiece block unit

#909

#1619×2

Eyepiece

block unit

#847

#B846

#844

#849

#841 #845

#842

・Peel off the eyepiece lower dustproof tape (#909).

・Take out the two screws (#1619) and remove the eyepiece block unit.

INC

- Ｄ  ･ -

logo�Q0310�forGraphic

070509�Gdesign�ito

VBA20001-R.3720.A

#1618×2

#B1004

#910

#1542×2

#871×2

#873×2

#874×2

#872×2 #891

#833

#1055

#877

#876×2

#B832

#956

#B1005

#955

#840

#904

#837

#839

#838×2

#895A ～C

#901

#834

#830

#890

AF FPC unit



#293×3

#295×3

AF FPC unit

(#B1007)

・Take out the two screws (#1507).

・Disconnect the FPC of AF FPC unit

(#B1007) from the connector.

・Take out the three screws (#295), andscrews (#295), and

remove [#B1007] and three springs#B1007] and three springs

(#293).

#1507×2

INC

- Ｄ  ･ -

logo�Q0310�forGraphic

070509�Gdesign�ito

VBA20001-R.3720.A

・Remove the ten solders of the wires that are connected to the PD base plate (#1002).

・Disconnect the FPC (#1010) from the connector.

・Take out the screw (#1522), and remove the PD base plate.

・Remove the solder of the lens release SW lug plate (#680) and also remove nine solders of the 10-pin terminal

(#41) (which is assembled from the other side and soldered).

・Take out the screw (#1503), and remove [#680] and the FPC (#1010).

・Take out the screw (#65), and remove [#41].screw (#65), and remove [#41].[#41].#41].

PD base plate/10-pin terminal

Yellow

BrownBlue Red

Green

Black

Red

Black

#1119:Black

10-pin terminal (#41)(9 solders)



lug plate (#680)

AF motor wire

FPC: #1010

PD base plate

(#1002)

#1522 #1522

#1503 #991

#39

#1010

#1110

#1111

#957

#905

#1522×2

#1002

#1042

#65

#41

#968

#680

#1503

INC

- Ｄ  ･ -

logo�Q0310�forGraphic

070509�Gdesign�ito

VBA20001-R.3720.A

#992

#1527

#B382

#40

#37

#38×2

#407

#1514

#383

#387

#66

#406

#402

#401

#1620

#1621×4

#906

Front cover, Bayonet and other small parts

INC

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