Nikon AF-S Zoom-Nikkor ED 24-70mm/F2.8G (IF) Operating instructions

作成承認印 配布許可印
JAA80251-R.3723.A
JAA80251
Copyright ｃ2007 by Nikon Corporation.
All Rights Reserved.
無断転載を禁ず
!!
Printed in Japan November 2007
AF-S Zoom-Nikkor ED
24-70mm/F2.8G(IF)
REPAIR MANUAL
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サービス
計画課
INC

JAA80251-R.3723.A
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When disassembling/(re)assembling, be sure to use the conductive mat (J5033) and wrist strap
(J5033-5) for static protection of electrical parts.
When disassembling, make sure to memorize the processing state of wires, screws to be xed and
their types, etc.
When FPCs are connected to PCBs, etc, put the FPCs in connectors, etc, straightforward so that they
are all the way seated.
Because prototypes are used for "Disassembly/(Re)assembly/Adjustment", they may differ from the
actual products in forms, etc.
Because pictures are processed by a special method, they may differ from the actual ones in texture.
This lens will need the optical lens-alignment work in case of performing the below work.
Therefore, after the work, adjust optical lens-alignment at service facilities where such work can
be carried out.
Disassembly of 1-1 lens group unit, 4th lens group unit
Replacement of 1-1 lens group unit, 1-2 lens group unit, 3rd lens group unit, 4th lens group unit,
1st lens-G lead ring, helicoid tube unit
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・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.
・Use the special soldering iron respectively for lead-free solder and lead
solder.
They cannot be used in common.
Points to notice for Lead-free solder products
※Before Disassembly / Reassembly / Adjustment
INC

JAA80251-R.3723.A
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1. Disassembly
Filter ring
Remove the sheet.
Take out the two screws (#63) and the screw (#79), and remove the lter ring.
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Sheet
Filter ring
#63×2
#79󲥵Shoulder screw󲥶
INC

JAA80251-R.3723.A
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1st lens-G unit
Take out the two screws (#50) and the screw (#61), and remove the 1st lens-G unit.
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G1 lens
#50×2
#61 (Countersunk screw)
G2, G3 lens
1st lens group
Caution: If the G1 lens is removed, the lens alignment work will be necessary.
#76
#77
Adjustment washer (A-I)
#72×3
INC

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Rubber ring
Remove the zoom rubber ring.
Remove the focus rubber ring.
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Bayonet side
Rubber ring
Sloped
Zoom ring
Cross-section view of Focus ring/Zoom ring
Focus rubber ring
Zoom rubber ring
Sheet
Remove the sheet (#163).
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#163
G4 lens is the hybrid aspheric lens.
R1-surface of G4 lens is plastic surface, so dip a wiping cloth (Savina Minimax) a little in
ethanol, and wipe the surface lightly. If dust/dirt is attached, blow them away with a blower as
much as possible.
G4 lens
INC

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Tape
Peel off the four pieces of the tape (#193) of - , and remove the two cover plates (#194).
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Zoom brush
M/A brush
#194
#193
INC

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Take out the three screws (#182) of the 5th lens group.
Take out the two screws (#180) of the contacts unit.
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#180×2
Zoom brush
#96
Take out the screw (#96), and remove the zoom brush.
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Zoom brush
M/A brush
Take out the screw (#100), and remove the M/A brush.
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5th lens group
M/A brush
#100
#182×3
Caution: For [#182], a thicker screw (1K010-343) may be used to t with the larger screw hole caused
by adjustments. So check the screw diameter. [#182] has M1.4-diameter, while [1K010-343]
has M1.7-diameter.
5th lens Group
󲥵Thicker screws may be used.󲥶
INC

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#78
Blade actuating plate spring
#172×4
Bayonet mount unit
Take out the four screws (#172).
Remove the bayonet mount unit.
Remove the Bf adjustment washer (#78).
Caution: Handle the blade actuating plate spring with care, because it can be easily deformed.
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Bayonet mount unit
INC

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Remove the 4th lens group.
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4th lens group
#81×3
4th lens group
Washer
Washer
Washer
Caution: Removing the 4th lens group needs the lens alignment work.
󲥵with being light-shielding tape attached󲥶
The hybrid aspheric lens is used for the bayonet side of the 4th lens group.
If dust/dirt is attached, blow them away with a blower as much as possible.
If such dust/dirt can not be removed, dip a wiping cloth (Savina Minimax) a little in ethanol,
and wipe the surface lightly.
INC

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3rd lens group
Remove the 3rd lens group with [J11346].
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J11346
3rd lens group
Washer
INC

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Set the cam tube to WIDE-end. Take out the two screws (#67) and remove the zoom coupling key.
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Rear xed tube
Take out the ve screws (#174), and remove the rear xed tube.
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#67×2
Zoom coupling key
#174×5
Rear xed tube
INC

JAA80251-R.3723.A
- Ｄ 11・AF-S 24-70/2.8G -
Convex portion
Cutout section
Disconnect the focus zoom-FPC from the connector of the main PCB.
�
FocusZoom-FPC
Zoom ring
Align the cutout section of the exterior xed tube with the convex portion of the zoom ring. Then
detach the zoom ring.
�
Zoom ring
Exterior xed tube
△ (Revision)
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計画課
△ (Revision)
INC

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Exterior xed tube
Remove the exterior xed tube.
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Take out the four screws (#174) of the exterior xed tube.
Main PCB
Focus index sheet
Exterior xed tube
#174×4
Caution: When the exterior xed tube is removed, be careful not to touch the main �CB and the focus: When the exterior xed tube is removed, be careful not to touch the main �CB and the focus
index sheet.
INC

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MF ring
Detach the MF ring and washer (#169) from the SWM unit.
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MF ring
SWM unit
#169
INC

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GMR unit
Peel off the tape (#196).
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Disconnect the GMR-FPC from the connector of the main PCB.
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#196
Slide the connector in the direction of
the arrow, and remove the FPC.
Take out the screw (#73) and remove the GMR unit.
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#73
GMR unit Caution：
NEVER touch the sensor area
directly by hand.
Back
Main PCB
INC

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Take out the two screws (#81) and two washers (#74), and remove the main PCB unit.
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#81×2
#74×2
Take out the screw (#120).
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#120
Remove the contact-FPC from the main PCB.
Remove the focus-FPC from the main PCB.
Remove the SWM relay-FPC from the main PCB.
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SWM relay-FPC
Main PCB unit
Contact-FPC
Focus-FPC
Main PCB
INC

JAA80251-R.3723.A
- Ｄ 16・AF-S 24-70/2.8G -
SWM coupling key
SWM coupling key
#96×2
・Take out the two screws (#96) and remove the SWM coupling key.
Focus coupling key
#96×2
Focus coupling key
・Take out the two screws (#96), and remove the focus coupling key.
Focus encoder brush
・Take out the screw (#96) and remove the focus encoder brush.
Focus encoder brush
#96
Changed page △× 1 January.10.2008
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サービス
計画課
△ (Deletion)
INC

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Focus xed tube
Attach the protection tape to the SWM relay-FPC. (Do NOT attach the FPC-contacts area.)
Fig.1
Fig.2
Fig.3
Roller
#158
#157
Focus xed tube
Remove the rollers from the focus xed tube (by following the order from "Fig.1" to "Fig.3".󲥶
SWM relay-FPC Protection tape
INC

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Remove the focus xed tube from the inner xed tube.
Focus xed tube
Inner xed tube
Be careful so that ngers or a screwdriver do NOT touch the magnetic surface.
Magnetic tape
Focus xed tube (continued)
INC

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Focus coupling key
Set the zoom to TELE-end position, and disengage the focus coupling key from the focus coupling pin.
Focus coupling pin
Focus coupling key
Zoom: TELE-end position
Lens (front)
󲥵∞ innity-end)
INC