Nikon AF-S VR Zoom-Nikkor ED 24-120mm f/3.5-5.6G... Operating instructions

JAA78271-R.3598.A
作成承認印 配布許可印
REPAIR MANUAL
NIKON CORPORATION
Tokyo, Japan
Recycled paper
Printed in Japan May 2003
Copyright ｃ 2003 by Nikon Corporation.
All Rights Reserved.
AF-S VR Zoom-Nikkor
ED 24-120mm f/3.5-5.6G IF
INC

JAA78271-R.3598.A
- M1 ･AF-S VR24-120/3.5-5.6G -
Type of lens
Focal length
Maximum aperture
Lens construction
Picture angle
Focal length scale
Distance information
Zoom control
Focusing
Shooting distance scale
Closest focus distance
Diaphragm
Aperture range
Exposure measurement
Attachment size
Dimensions
Weight
G-type AF Zoom- Nikkor lens having built-in CPU and Nikon bayonet mount
24mm-120mm
f/3.5-f/5.6
15 elements in 13 groups (2 aspherical lens and 2 ED lens elements)
84 ° -20 ° 30 ′ (71 ° -16 ° 20with IX 240 system cameras,
61 ° -13 ° 20 ′ with Nikon Digital Camera D1/D1H/D1X/D100)
24,28,35,50,70,85,120mm
Output to camera body
Manually via separate zoom ring
Nikon Internal Focusing (IF) system (utilizing an internal Silent Wave Motor);
manually via separate focus ring
Graduated in meters and feet from 0.5m (2ft.) to innity (∞)
0.5m (1ft.) at all zoom settings
Fully automatic
f/3.5 to f22 (at 24mm), f5.6 to 36 (at 120mm)
Via full-aperture method with cameras having CPU interface system
72mm (P ＝0.75mm)
Approx. 77mm dia. ×94mm extension from the camera's lens mount ange
(min. length at 24mm focal length)
Approx.575g (20.3 oz)
SPECIFICATIONS
INC

JAA78271-R.3598.A
- L1･ AF-S VR24-120/3.5-5.6G -
※ Before disassembly/reassembly/adjustment
To get the picture blur compensation to work, the VR (vibration-reduction) unit is mounted on this lens.
In case of detaching the VR (vibration-reduction) unit and gyro base plate, be sure to adjust the VR by
using the VR lens adjustment equipment (J15380）to maintain the functional accuracy of the picture blur
correction.
However, except for disassembling the above part, the VR adjustment is NOT necessary.
At service agencies where the "VR lens adjustment equipment" is not prepared, do NOT disassemble NOR
repair the products of the above case.
INC

JAA78271-R.3598.A
- L2･ AF-S VR24-120/3.5-5.6G -
DISASSEMBLY
1ST LENS GROUP
#63 #135
1st lens group
#68×3
#65×3
B4 #86 B47 #55
#129×3
#119 × 2
#131 × 2
#132 × 2
INC

JAA78271-R.3598.A
- L3･ AF-S VR24-120/3.5-5.6G -
REAR COVER RING
BAYONET
INDEX RING, FOCUS RING
#122 M/A change-over SW
・Unscrew #122, and lift the M/A change-over SW
in the direction indicated by the arrow.
#113 × 2
#102 × 3
#125
#106
#104 × 3
Rear cover ring
INC

JAA78271-R.3598.A
- L4･ AF-S VR24-120/3.5-5.6G -
Index ring
Focus ring
・By passing the M/A change-over SW through
the hole of the index ring, detach the index
ring and focus ring.
MAIN PCB
・ Remove the connector (at 8 parts) and the
screw (#95), and detach the main PCB.
①
②
③
④
⑤
⑥
⑦
⑧
#95
INC

JAA78271-R.3598.A
- L5･ AF-S VR24-120/3.5-5.6G -
GYRO BASE PLATE / DC-DC BASE PLATE
ZOOM RING
#29
DC-DC base plate
Gyro base plate
・ Take out 2 screws (#96) and 1 screw
(#94), and lift up #29.
#123 #95
#61
Tape Zoom encoder brush
・ Remove the tape and detach the zoom encoder brush by displacing it.
・ Remove the circled part of the FPC.
・ Turn the zoom to the TELE side, and take out 2 screws (#124) and #70.
#94 #96
#29
ＦＰＣ
#124
#70
INC

JAA78271-R.3598.A
- L6･ AF-S VR24-120/3.5-5.6G -
#139 × 2
#97
#24
Zoom ring
#89 × 3
#89 × 3
DISTANCE SCALE RING
INC

JAA78271-R.3598.A
- L7･ AF-S VR24-120/3.5-5.6G -
SWM UNIT
Caution：
In case of removing the 4th lens group,
the lens alignment is required.
At service agencies where the operations
of the alignment cannot be performed, do
NOT detach the 4th lens group.
4TH LENS GROUP FRAME
Turn this ring in the direction indicated by the arrow,
and set the zoom to WIDE.
#66 × 2
#78
SWM unit
#96 × 3
INC

JAA78271-R.3598.A
- L8･ AF-S VR24-120/3.5-5.6G -
CAM RING
3rd lens group
#115 × 2
#100 × 2
#100 × 2
#98 × 3
#79 × 3
#81 × 2
#114 × 2
#96 × 3
Caution:
Removing G11, G12 lens-housing unit may cause a failure of optical
performance. In this case, inform the Kyotens of each region.
（Addition)
×２
Changed page June. 14. 2006
（Revision）
Removing G11, G12
lens-housing unit
INC

JAA78271-R.3598.A
- L9･ AF-S VR24-120/3.5-5.6G -
2ND LENS GROUP
Seal
2nd lens
group
2ND SLIDING RING, CAM RING
2nd sliding ring
Cam ring
VR UNIT
#57
#80 × 2
#91 × 3
#112
#69 × 3
INC

JAA78271-R.3598.A
- L10 ･ AF-S VR24-120/3.5-5.6G -
APERTURE BLADE HOUSING GROUP
VR unit
#130
#36 #33 B1×7
#34
#103×2
#37
INC

JAA78271-R.3598.A
- L11 ･ AF-S VR24-120/3.5-5.6G -
ASSEMBLY
APERTURE BLADE HOUSING GROUP
VR unit
#130
#36 #33 B1×7
#34
#103×2
#37
Position to attach #37
VR UNIT
Apply the grease (MZ-800S) to
4 convexities
Apply the grease (MZ-800S) to
3 convexities
#37
#69 × 3
INC

JAA78271-R.3598.A
- L12 ･ AF-S VR24-120/3.5-5.6G -
2ND SLIDING RING, CAM RING
2nd sliding ring
Hole
Mark
Position to attach the 2nd
sliding ring
2ND LENS GROUP
Seal
2nd lens
group
Apply the grease (G92KA)
to the all-around outer
surface of the ring
#80 × 2
#91 × 3
#112
Apply the grease (GE-8) to the all
-around outer surface of the ring and cam
groove.
Cam ring
#57
INC

JAA78271-R.3598.A
- L13 ･ AF-S VR24-120/3.5-5.6G -
CAM RING
3rd lens group
・Pinch the FPC by #115, and attach #115
with the screw (#100).
#96 × 3
Apply the grease
(GE-8) to 5
convexities Attach：Screw Lock
#115
ＦＰＣ
#115 × 2
#100 × 2
#100 × 2
#98 × 3
#79 × 3
#81 × 2
#114 × 2
INC

JAA78271-R.3598.A
- L14 ･ AF-S VR24-120/3.5-5.6G -
4TH LENS GROUP FRAME
SWM UNIT
SWM unit
Engage the SWM driving lever
with #112.
Driving lever
#96 × 3
#66 × 2
#78
#112
Attach：Screw Lock
INC

JAA78271-R.3598.A
- L15 ･ AF-S VR24-120/3.5-5.6G -
Focus ring
・As a preparation for adjustment,
assemble temporarily #24 and the focus
ring. Do NOT attach the screw (#89).
INSPECTION AND ADJUSTMENT OF THE MR ENCODER OUTPUT WAVEFORM
●In case of disassembling or replacing the MR head, be sure to make adjustments.
1. Equipment and tools to be required
・Single output rated voltage power supply: 1 unit For self-made tool: 5.0V and 100mA
・Oscilloscope: 1 unit
・Self-made tool: 1 unit Use the tool that was made for AF-S24-85/3.5-4.5G
Caution：In case of any trouble in continuity between the self-made tool and the contacts of relay
FPC, there may be dust, corrosion or oxidation on the contact surface of relay FPC. Be sure
to polish the contact surface before connecting to the self-made tool.
2. Preparation for the measuring lens
・Assemble the SWM unit mounted with the MR head, the focus ring, and #24 into the body , then
connect to the measuring devices. (Ref. next page.)
#24
INC

JAA78271-R.3598.A
- L16 ･ AF-S VR24-120/3.5-5.6G -
(GND)
(＋)
・Connections
Oscilloscope(2ch)
Oscilloscope(1ch)
Power supply(+)
Power supply(-)
Self-made tool
Oscilloscope
（2ch）
Power supply
Set values
5.0 V
100 mA
・How to inspect and adjust
① Make sure that the electric current and voltage of the connected rated voltage power supply are set to the set
values, and turn the power ON.
② Set the oscilloscope and rotate the focus ring by hand.
Note：Because the waveform varies depending on the rotational speed of the focus ring, change the setting of Time/Div
properly.
③ In case wide waveform noise is seen, use the lter function.
How to set the lter function in case of Yokogawa-manufactured DL1540
１．Press the lter button.
２．Turn "Smooth" ON in the menu on the PC screen.
Standard：50mV or more of the amplitude of all waveforms
Note：Check the waveform by moving the focus ring back and forth from the innity-end
position to the close distance end position.
Self-made tool
CH1=20mV CH2=20mV 5ms/div
AC 10:1 AC 10:1
NORM 200KS/s
● Oscilloscope setting
V/Div (ch1) : ２０ｍＶ
V/Div (ch2) : ２０ｍＶ
Coupling : ＡＣ
Time/Div : ５ｍ Sec
Trigger Mode : ＮＯＲＭＡＬ
Trigger Coupling : ＡＣ
Trigger Source : ＣＨ１
Trigger Position : ＋４div
Trigger Type : ＥＤＧＥ
Trigger Level : ０Ｖ
INPUT (ch1) : ＡＣ
INPUT (ch2) : ＡＣ
INC

JAA78271-R.3598.A
- L17 ･ AF-S VR24-120/3.5-5.6G -
④ In case of small amplitude, lift the focus ring and #24.
Then loosen two screws (#644) to move and adjust the MR
head position
Note：To prevent any damages to magnetic data, do NOT let
the magnetic tape and MR head touch the magnetized
driver bit when adjusting.
《Ref.》
● In case the amplitude of either CH1 or CH2 is smaller, check the screws (#644) because one of them may be
loosened. If the screw is not loose, replace the MR head unit (B635) and readjust it because the MR head may
have troubles.
MR head Magnetic tape
● In case a drop in the amplitude between the innity and the close distance positions is seen, replace the magnetic
tape and readjust it because the magnetic data of the tape may be damaged.
⑤ Turn the rated voltage power OFF.
#644 × 2
CH1=20mV CH2=20mV 5ms/div
AC 10:1 AC 10:1
NORM 200KS/s
CH1=20mV CH2=20mV 5ms/div
AC 10:1 AC 10:1
NORM 200KS/s
INC

JAA78271-R.3598.A
- L18 ･ AF-S VR24-120/3.5-5.6G -
DISTANCE SCALE RING
#25
Scale plate
Pull the scale plate to align with this line, and
attach it to #25.
・Align the groove of #77 with the
convexity of #25 to assemble.
#25 #77
Convexity Groove
3mm
・Give the SWM driving shaft a complete turn in the
direction indicated by the arrow.
・As shown in the above, slip the distance scale ring 3
mm from the reference line.
・Assemble the distance scale ring at the left position.
Reference
line
Pass FPC through the
hole
Apply the grease (MZ-800S) to
the convexity.
#89 × 3
Driving shaft
INC