Nikon D90 Repair Manual
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VBA23001-R.3762.A
INC
作成承認印 配布許可印
VBA23001
REPAIR MANUAL
Printed in Japan SEP 2008
Copyrightｃ2008 by Nikon Corporation.
All Rights Reserved.
無断転載を禁ず
!!
VBA23001-R.3762 .A
INC
Contents
Points to notice for Disassembly and Assembly ..............................................................................................................Ｄ 1
Disassembly
1. External area
Bottom cover ...........................................................................Ｄ 2
Removal of Back cover ...................................................................Ｄ 3
2. Back cover
Rear display FPC unit .....................................................................Ｄ 4
TFT monitor............................................................................Ｄ 8
Button / SW-related ...................................................................... Ｄ 9
SD cover unit ........................................................................... Ｄ 10
Speaker unit ............................................................................Ｄ 12
DG-shield plate .........................................................................Ｄ 12
DG PCB unit ...........................................................................Ｄ 13
Image sensor unit ........................................................................Ｄ 14
A/M cover plat ..........................................................................Ｄ 15
SB pop-up .............................................................................. Ｄ 15
Front cover unit .........................................................................Ｄ 16
Grip rubber unit ......................................................................... Ｄ 17
I/F cover ...............................................................................Ｄ 18
Removal of top cover .....................................................................Ｄ 20
3. Top cover
AF-assist lamp unit ......................................................................Ｄ 23
Top cover FPC unit ......................................................................Ｄ 23
AE-L button ............................................................................Ｄ 28
Top cover grip button ....................................................................Ｄ 28
Power dial .............................................................................. Ｄ 29
Hot shoe ...............................................................................Ｄ 30
SB upper cover .......................................................................... Ｄ 30
SB lower control unit .....................................................................Ｄ 31
Remote control unit ...................................................................... Ｄ 34
M/D FPC unit ..........................................................................Ｄ 34
Delete button ...........................................................................Ｄ 35
Mode dial ..............................................................................Ｄ 35
Microphone ............................................................................ Ｄ 35
Removal of the main condenser ............................................................. Ｄ 37
Main PCB unit .......................................................................... Ｄ 38
- D90 -
VBA23001-R.3762 .A
INC
4. Separation of Front body from Rear body
Eyepiece mold .........................................................................Ｄ 40
5. Rear body
SB/IF PCB ............................................................................. Ｄ 42
DC/DC PCB ...........................................................................Ｄ 42
Imaging power PCB unit ..................................................................Ｄ 44
Bottom plate unit ........................................................................ Ｄ 45
Power drive PCB unit .................................................................... Ｄ 46
Battery contact-spring ....................................................................Ｄ 48
Eyelet ................................................................................. Ｄ 50
Buzzer unit .............................................................................Ｄ 51
Drip-proof sponge .......................................................................Ｄ 51
Dust-proof tape .......................................................................... Ｄ 52
6. Separation of Prism box unit from Front body unit ...............................................Ｄ 53
7. Prism box unit
Metering FPC unit ....................................................................... Ｄ 54
Inside finder LCD unit ....................................................................Ｄ 54
Screen box ............................................................................. Ｄ 55
Penta prism ............................................................................Ｄ 57
Penta prism FPC unit .....................................................................Ｄ 59
Eyepiece barrel unit ...................................................................... Ｄ 60
8. Front body unit
SB PCB ...............................................................................Ｄ 61
Shutter unit ............................................................................Ｄ 62
AF CCD unit ........................................................................... Ｄ 62
Front body FPC .........................................................................Ｄ 64
Aperture control unit .....................................................................Ｄ 66
AF driving base ........................................................................Ｄ 69
Bayonet ...............................................................................Ｄ 70
A/M change sw .........................................................................Ｄ 72
Release button .......................................................................... Ｄ 73
F-min SW .............................................................................Ｄ 74
Preview sw ............................................................................. Ｄ 74
Main mirror unit ........................................................................Ｄ 75
- D90 -
VBA23001-R.3762 .A
INC
Assembly / Adjustment
1. Front body unit
Main mirror unit ......................................................................... Ａ 3
F-min SW ..............................................................................Ａ 5
Release button ..........................................................................Ａ 5
A/M change SW ......................................................................... Ａ 7
Bayonet ................................................................................ Ａ 8
AF driving base .........................................................................Ａ 10
Aperture control PCB .....................................................................Ａ 11
Front body FPC .........................................................................Ａ 14
AF CCD unit ............................................................................Ａ 17
Shutter unit .............................................................................Ａ 18
SB PCB ................................................................................Ａ 20
2. Prism box
Preview SW
Height adjustment of AF coupling shaft
Height adjustment of Aperture lever
Angle inspection and adjustment of Main mirror and Sub-mirror
Angle adjustment of Main mirror and sub-mirror
............................................................................Ａ 4
.......................................................Ａ 21
.......................................................Ａ 21
............................................... Ａ 23
...................................Ａ 22
Eyepiece barrel unit ...................................................................... Ａ 24
Penta prism FPC unit .....................................................................Ａ 25
Penta prism ............................................................................. Ａ 25
Screen box .............................................................................Ａ 28
Inside finder LCD unit .................................................................... Ａ 30
Metering FPC unit 1 ...................................................................... Ａ 30
3. Rear body
Dust-proof tape .......................................................................... Ａ 32
Drip-proof sponge .......................................................................Ａ 32
Buzzer unit ............................................................................. Ａ 33
Eyelet ................................................................................. Ａ 34
Battery contact spring ..................................................................... Ａ 36
Power drive PCB unit ..................................................................... Ａ 37
Bottom plate unit ........................................................................Ａ 38
Imaging power PCB unit .................................................................. Ａ 39
DC/DC PCB ............................................................................Ａ 40
SB/IF PCB unit .......................................................................... Ａ 43
- D90 -
VBA23001-R.3762 .A
INC
4 .Mounting Front body on Rear body.
Eyepiece mold .......................................................................... Ａ 44
Main PCB .............................................................................Ａ 48
Mount the main condenser ................................................................Ａ 50
5. Top cover
Microphone .............................................................................Ａ 52
Mode dial ..............................................................................Ａ 52
Delete button ...........................................................................Ａ 53
M/D FPC unit ........................................................................... Ａ 53
Remote control unit ......................................................................Ａ 54
SB lower control unit ..................................................................... Ａ 55
SB upper cover .......................................................................... Ａ 57
Hot shoe ...............................................................................Ａ 58
Power dial .............................................................................. Ａ 59
Top cover grip button ..................................................................... Ａ 60
AE-L button ............................................................................ Ａ 60
Top cover FPC unit ......................................................................Ａ 61
Inspection and Adjustment of Body back
..................................................Ａ 45
AF assist lamp unit ....................................................................... Ａ 65
Mount the top cover on the body ............................................................Ａ 66
I/F cover ............................................................................... Ａ 69
Grip rubber unit .........................................................................Ａ 70
Front cover unit .........................................................................Ａ 71
A/M cover plate ......................................................................... Ａ 72
Image sensor unit ........................................................................Ａ 73
DG PCB unit ............................................................................Ａ 74
DG shield plate ..........................................................................Ａ 78
Speaker unit ............................................................................Ａ 78
D90 Inspection and Adjustment Software (J65119) .............................................. Ａ 80
Necessary adjustments when parts are replacedNecessary adjustments when parts are replaced（Camera） .......................................Ａ 86
Inspection and adjustment of AE CCD positioning
Battery check voltage inspection
............................................................Ａ 77
Accuracy inspection and adjustment (Camera body exc. Imaging)
Procedure for installing USB driver
AE inspection and adjustment
..............................................................Ａ 87
.......................................................Ａ 84
.............................................. Ａ 75
.............................Ａ 79
AF inspection and adjustment
..............................................................Ａ 89
- D90 -
October. 2. 2008Changed page (Overall revision)
VBA23001-R.3762 .A
INC
6.Back cover
SD cover unit ........................................................................... Ａ 92
Button / SW ............................................................................ Ａ 93
TFT monitor............................................................................Ａ 94
Rear display FPC unit ....................................................................Ａ 95
Mounting of Back cover .................................................................. Ａ 100
7. External area
Bottom cover ...........................................................................Ａ 101
Shooting-image Adjustment ......................................................................Ａ 102
Shooting image adjustment software and Software updates ..............................................Ａ 103
Image adjustment .............................................................................. Ａ 104
∞ Infinity focus inspection & adjustment
Measurement of Consumption current value ......................................................... Ａ 110
Cleaning between Penta prism and SI-LCD ..........................................................Ａ 111
Wiring ................................................................................. Ｅ 1
Mounting Drawing ........................................................................ Ｅ 2 ～Ｅ 16
Inspection Standards ....................................................................... Ｒ 1 ～Ｒ 6
Tools ................................................................................. Ｔ 1 ～Ｔ 4
...........................................................Ａ 109
- D90 -
Points to notice for Disassembly and Assembly
WARNING
There are high voltege parts inside. Be careful of this electric shock,
when you remove the cover.
You must discharge the main condenser according to the instruction
of this repair manual after you remove the cover.
!
INC
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.
VBA23001-R.3762 .A
② Before disassembling, be sure to remove batteries or AC power cord.
③ In disassembling, be sure to memorize the processing state of wires and FPC, screws to be xed and
their types, etc.
④ The low-pass lter of the image PCB/base plate is easily damaged. Handle it very carefully.
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.
Caution:
When "Separation of Front body from Rear body", "Disassembly of Image sensor unit"
and "Disassembly of Bayonet" are performed, be sure to carry out "RESET AF-DEFOCUS
COMPENSATION" of the D90 adjustment software after assembly.
- D1 ･ D90 -
Disassembly
INC
VBA23001-R.3762 .A
1. External area
Bottom cover
・Tilt the battery cover unit (#B151) at approx. a 35battery cover unit (#B151) at approx. a 35-degree angle, and pull it out.
・Take out the two screws (#657), the two screws (#658), the screw (#661), and the two screws (#692).Take out the two screws (#657), the two screws (#658), the screw (#661), and the two screws (#692).
・Remove the bottom cover unit (#25).Remove the bottom cover unit (#25).
Battery chamber unit (#B151)
35°
(#692)
(#657)
×2
×1
Bottom cover unit (#25)
(#661)
(#658)
×1
×2
(#657)
×1
- D2 ･ D90 -
Removal of Back cover
INC
・Take out the two screws (#608).Take out the two screws (#608).
・Take out the four screws (#657).Take out the four screws (#657).
VBA23001-R.3762 .A
Screw (#608)
Screw (#657)
・Slacken the grip side of the cover first, and then remove the cover wholly.
・Disconnect the FPC of the back cover from the connector on the DG PCB unit.Disconnect the FPC of the back cover from the connector on the DG PCB unit.
×2
×4
- D3 ･ D90 -
2. Back cover
INC
・Peel off the cover rubber (#407) and thePeel off the cover rubber (#407) and the double-stick tape (#409).
・Remove the SD access lamp window (#408).Remove the SD access lamp window (#408).
VBA23001-R.3762 .A
Rear display FPC unit
・Remove the gasket (#483).Remove the gasket (#483).
・Peel off the tape [TA-0005 (12.5Peel off the tape [TA-0005 (12.5×12.5)].
Gasket (#483)
SD access lamp window (#408)
Double-stick tape (#409)
Cover rubber (#407)
Tape [TA-0005 (12.5 × 12.5)]
- D4 ･ D90 -
・Take out the ten screws (#670).Take out the ten screws (#670).
INC
・Disconnect the connector.Disconnect the connector.
VBA23001-R.3762 .A
Screw (#670)
・Take out the three screws (#710).Take out the three screws (#710).
×6
Screw (#670)
×4
Screw (#710)
- D5 ･ D90 -
×3
・Remove the plate (#422).Remove the plate (#422).
INC
・Remove the rear display FPC unit (#B1034) together with the plate (#415).Remove the rear display FPC unit (#B1034) together with the plate (#415).
Plate (#415)
VBA23001-R.3762 .A
Rear display FPC unit (#B1034)
Plate (#422)
- D6 ･ D90 -
・Peel off the rear display FPC unit (#B1034) from the plate (#415).Peel off the rear display FPC unit (#B1034) from the plate (#415).
INC
VBA23001-R.3762 .A
Rear display FPC unit (#B1034)
・Peel off the double-stick tape (#423) from the plate (#415).Peel off the double-stick tape (#423) from the plate (#415).
Double-stick tape (#423)
Plate (#415)
- D7 ･ D90 -
TFT monitor
INC
・Take out the screw (#710).Take out the screw (#710).
・Remove the plate (#406).Remove the plate (#406).
VBA23001-R.3762 .A
・Remove the TFT monitor (#1057).Remove the TFT monitor (#1057).
Screw (#710)
Plate (#406)
TFT monitor (#1057)
- D8 ･ D90 -
Button / SW-related
INC
・Remove the buttons (#421, #429, and #430).Remove the buttons (#421, #429, and #430).
VBA23001-R.3762 .A
Button (#430)
Button (#421)
・Remove the conducting rubber (#413).Remove the conducting rubber (#413).
・Remove the button (#414).Remove the button (#414).
・Remove the multi-selector (#412).Remove the multi-selector (#412).
Screw (ROHS) (#707)
・Take out theTake out the screw (#707).
・Remove the selector SW unit (#B420).Remove the selector SW unit (#B420).
・Remove the selector lock lever (#416).Remove the selector lock lever (#416).
Selector lock lever (#416)
△（Revision）
Button (#429)
Multi-selector (#412)
Button (#414)
Conducting rubber (#413)
Changed page △× 2
Selector SW unit (#B420)
- D9 ･ D90 -
Screw (ROHS) (#707)
Screw (#707)
△（Revision）
October. 2. 2008
SD cover unit
INC
・Take out the two screws (#621), and remove the SD cover unit (#B431).Take out the two screws (#621), and remove the SD cover unit (#B431).
Screw (#621) × 2
VBA23001-R.3762 .A
SD cover unit (#B431)
・Peel off the label (#436).Peel off the label (#436).
Label (#436)
- D10 ･ D90 -
・Peel off the rubber (#433).Peel off the rubber (#433).
INC
・Peel of the drip-proof sheet (#44).Peel of the drip-proof sheet (#44).
Rubber (#433)
・Peel off the two sponges each (#404 and #405).Peel off the two sponges each (#404 and #405).
VBA23001-R.3762 .A
Drip-proof sheet (#44)
・Remove the TFT monitor cover (#402).Remove the TFT monitor cover (#402).
・Peel off the double-stick tape (#403).Peel off the double-stick tape (#403).
Double-stick tape (#403)
(#404)
(#405)
(#404)
(#405)
Back cover (#401)
TFT monitor cover (#402)
- D11 ･ D90 -
Speaker unit
INC
・Disconnect the connector.Disconnect the connector.
・Take out the two screws (#612), and remove the speaker unit (#B45).Take out the two screws (#612), and remove the speaker unit (#B45).
Speaker unit (#B45)
VBA23001-R.3762 .A
DG-shield plate
・Disconnect the image sensor unit-FPC.Disconnect the image sensor unit-FPC.
・Take out the six screw (#683).Take out the six screw (#683).
・Remove the shield plate (#78) and shield plate unit (#B79) carefully not to damage the clip.shield plate (#78) and shield plate unit (#B79) carefully not to damage the clip.
Screw (#683)
×1
Screw (#683)
Screw (#612)
×5
×2
Shield plate (#78)
Shield plate unit (#B79)
- D12 ･ D90 -
DG PCB unit
INC
・Disconnect the three FPCs and two harnesses.Disconnect the three FPCs and two harnesses.
・Take out the two screws (#683).Take out the two screws (#683).
VBA23001-R.3762 .A
Screw (#683)
Screw (#683)
・Remove the DG-PCB unit (#B1031).Remove the DG-PCB unit (#B1031).
・Disconnect the wire of the microphone.Disconnect the wire of the microphone.
×1
DG PCB unit (#B1031)
- D13 ･ D90 -
VBA23001-R.3762 .A
INC
Image sensor unit
・Unsolder the wires (Red/Black/Orange/Gray).Unsolder the wires (Red/Black/Orange/Gray).
×4
Wire
Take out the three screws (#680), and remove the image sensor unit (#B1051).
・
Caution: Some bodies have already the lumirror sheet T=0.1(#62) and washer (#63) attached. (ref. page A46)
(Red/Black/Orange/Gray)
Image sensor unit (#B1051)
Screw (#680)
×3
[
#62
[#63
]
]
- D14 ･ D90 -
VBA23001-R.3762 .A
INC
A/M cover plat
・Remove the A/M cover plate (black) (#124) (carefully NOT to damage it).Remove the A/M cover plate (black) (#124) (carefully NOT to damage it).
・Take out the screw (#659), and remove the A/M select lever (#121).Take out the screw (#659), and remove the A/M select lever (#121).
A/M cover plate
A/M cover plate (black) (#124)
△（Revision）
Screw (#659)A/M select lever (#121)
SB pop-up
Cut the lumirror sheet, etc, into a below-size piece. Then, insert it into the gap of the top cover pop-up section as
・
below, and slide it in the direction of the arrow to raise the speedlight.
4cm
2cm
Changed page △×１
- D15 ･ D90 -
October. 2. 2008
Front cover unit
INC
・ Take out the two screws (#611).
・ Take out the two screws (#613).
・ Remove the front cover unit (#B24).
VBA23001-R.3762 .A
Screw (#611)
Screw (#613)
・Remove the E-ring (#722).Remove the E-ring (#722).
・Remove the spring (#201) and the button (#229).Remove the spring (#201) and the button (#229).
・Remove the snap ring (#387) from behind.snap ring (#387) from behind.
×2
×2
Front cover unit (#B24)
・Remove the buttons (#391 and #392) from the front cover unit .Remove the buttons (#391 and #392) from the front cover unit .
Snap ring (#387)
E-ring (#722)
Spring (#201)
Button (#229)
Button (#391)
Button (#392)
Front cover unit (#B24)
Front cover unit
- D16 ･ D90 -
Grip rubber unit
INC
・Take out the screws (#627 and #618).Take out the screws (#627 and #618).
・Remove the grip rubber unit (#B26).Remove the grip rubber unit (#B26).
VBA23001-R.3762 .A
Screw (#627)
Battery chamber
Screw (#618)
・Peel off the tape [TA0005 (3.3Peel off the tape [TA0005 (3.3×11)].
・Peel off the tape (#811).Peel off the tape (#811).
・Remove the plate (#388).Remove the plate (#388).
・Remove the button (#390) and the conducting rubber (#389).Remove the button (#390) and the conducting rubber (#389).
・Attach the spring (#161) from behind, and take out the screw (#638).spring (#161) from behind, and take out the screw (#638).
・Remove the grip red mold (#29) from the front side of the grip cover.grip red mold (#29) from the front side of the grip cover. from the front side of the grip cover.
Plate (#388)
Conducting rubber (#389)
Tape (#811)
Screw (#638)
Spring (#161)
Button (#390)
Grip rubber unit (#B26)
Grip red mold (#29)
Tape [TA0005 (3.3×11)]
Grip cover
- D17 ･ D90 -
I/F cover
INC
・Remove the IF cover (#71) and the cable release cover (#70).Remove the IF cover (#71) and the cable release cover (#70).
・Remove the IF cover (#B28).Remove the IF cover (#B28).
VBA23001-R.3762 .A
IF cover (#B28)
・ Remove the tape (#755) from the IF cover (#B28).
IF cover (#71)
Cable release cover (#70)
IF cover (#B28)
Tape (#755)
- D18 ･ D90 -
・Pass the tip of the discharging device straight through the round-hole as below.
WARNING
There are high voltege parts inside. Be careful of this electric shock,
when you remove the cover.
You must discharge the main condenser according to the instruction
of this repair manual after you remove the cover.
!
INC
2KΩ/5W
VBA23001-R.3762 .A
Inside of round-hole
- D19 ･ D90 -
Removal of top cover
INC
Peel off the tape (#831).
・
VBA23001-R.3762 .A
・Unsolder the wires (Black/Pink/Orange/Blue) of the top cover.Unsolder the wires (Black/Pink/Orange/Blue) of the top cover.
・Remove the wires from the grooves.Remove the wires from the grooves.
・Unsolder the wires (Blue/Green/Yellow) of the preview unit.Unsolder the wires (Blue/Green/Yellow) of the preview unit.
・Unsolder the wires (Red/Black) of the main condenser.Unsolder the wires (Red/Black) of the main condenser.
Wire
×4
(Black/Pink/Orange/Blue)
Wire
×3
(Blue/Green/Yellow)
×2
Wire
(Red/Black)
- D20 ･ D90 -
・Peel off the diopter adj knob cover (#280).Peel off the diopter adj knob cover (#280).
INC
・Remove the screw (#288).Remove the screw (#288).
・Remove the sponge (#287) from the diopter adj knob (#282).Remove the sponge (#287) from the diopter adj knob (#282).
・Remove the roller (#281) from the body.Remove the roller (#281) from the body.
Roller (#281)
Sponge (#287)
Screw (#288)
Diopter adj knob (#282)
Diopter adj. knob cover (#280)
VBA23001-R.3762 .A
・Take out the screw (#636).Take out the screw (#636).
・Take out the two screw (#657).Take out the two screw (#657).
・Take out the two screw (#677).Take out the two screw (#677).
Screw (#636)
Screw (#657)
×2
Screw (#677)
- D21 ･ D90 -
×2
・Peel off the tape [TA-0005 (6Peel off the tape [TA-0005 (6×10)].
INC
・Remove the wires of the microphone (#1051) from the cutout of the body.Remove the wires of the microphone (#1051) from the cutout of the body.
Wires of the microphone (#1051)
VBA23001-R.3762 .A
Tape [TA-0005 (6×10)]
・Disconnect the FPC from the connector of the top cover unit (#B23RP).Disconnect the FPC from the connector of the top cover unit (#B23RP).
・Remove the top cover unit (#B23RP).Remove the top cover unit (#B23RP).
cutout
- D22 ･ D90 -
3. Top cover
INC
AF-assist lamp unit
・Unsolder the two wires (Black) of the AF-assist lamp unit (#B325).Unsolder the two wires (Black) of the AF-assist lamp unit (#B325).
・Take out the screw (#611).Take out the screw (#611).
AF-assist lamp unit (#B325)
VBA23001-R.3762 .A
Screw (#611)
Wire ×2 (Black)
Top cover FPC unit
・Unsolder the wires (Red/Black).Unsolder the wires (Red/Black).
・Unsolder the wires (Brown/Yellow).Unsolder the wires (Brown/Yellow).
・Remove the five solders of the shoe mold unit (#B317).Remove the five solders of the shoe mold unit (#B317).
Wire × 2 (Red/Black)
Wire× 2 (Brown/Yellow)
Solder × 5
- D23 ･ D90 -
・Disconnect the connector.Disconnect the connector.
INC
・Remove the wires (black/pink/orange/blue) from the two guides.Remove the wires (black/pink/orange/blue) from the two guides.
VBA23001-R.3762 .A
- D24 ･ D90 -
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