JAA63051-R.3689.A

AF-S VR Micro Nikkor 105mm / f2.8G

JAA63051 (MADE IN JAPAN)

REPAIR MANUAL
Copyrigh 2006 by Nikon Corporation. All Rights Reserved. !!
Printed in Japan Mar.2006

Specifications

Type of lens: Focal length: Maximum aperture: Lens construction: Picture angle: Reproduction ratio: Distance information: Focusing: Focusing limit switch: Vibration reduction: Closest focus distance: Diaphragm: Aperture range: Attachment size: Dimensions: Weight: 105mm f/2.8

JA63051-R.3689.A

G-type AF-S Micro-Nikkor lens with built-in CPU and Nikon bayonet mount
14 elements in 12 groups (1 ED glass and 1 Nano Crystal Coat-deposited lens elements) 2320 [1520 with Nikon digital cameras (Nikon DX format); 1840 with IX240 system cameras] 1:10 to 1:1 (life-size) Output to camera body Nikon Internal Focusing (IF) system (utilizing an internal Silent Wave Motor); manually via separate focus ring Provided; two ranges available: Full ( -0.314m) or-0.5m Lens-shift method using voice coil motors (VCMs) 0.314m (1 ft.) (life-size) Fully automatic f/2.8 to f/32 62mm (P = 0.75mm) Approx. 83mm dia. x 116mm extension from the cameras lens mount flange Approx. 790g (27.9 oz)
Shooting distance scale: Graduated in meters and feet from 0.314m (1 ft.) to infinity ( ) No. of diaphragm blades: 9 pcs. (rounded)
Exposure measurement: Via full-aperture method
Specifications and designs are subject to change without any notice or obligation on the part of the manufacturer.

- M1 AF-S VR 105/2.8G -

Before Disassembly / (Re)assembly / Adjustment
On this lens, the VR (vibration-reduction) unit is mounted to correct the picture blur.

JAA63051-R.3689.A

In order to maintain the functional accuracy of the picture blur correction, if detaching the VR (vibration-reduction) unit and gyro base plate or if removing the main PCB unit, be sure to adjust the VR by using the VR lens adjustment equipment (J15380. However, if disassembling the parts except the above, the VR adjustment is NOT necessary. At service agencies where the "VR lens adjustment equipment" is not prepared, do NEITHER disassemble NOR repair the products of the above case.
Removing the 1-1st lens group or 5th lens group of this lens needs the lens alignment work after the assembly. Therefore, at service facilities where the lens alignment cannot be performed, do NOT remove the 1-1st lens group nor 5th lens group.
Caution: When disassembling, make sure to memorize the processing state of wires, screws to be fixed and their types, etc. 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.
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. Use the special soldering iron respectively for lead-free solder and lead solder. They cannot be used in common.
- D1 AF-S VR MC 105/2.8G -

1. DISASSEMBLY

VR name plate Remove the VR name plate (which is attached with the adhesive double-coated tape).

VR name plate

Front cover sheet Remove the front cover sheet (which is attached with the adhesive double-coated tape).

Front cover sheet

Rear cover ring
- D2 AF-S VR MC 105/2.8G -

JAA63051-R.3689.A Bayonet mount Take out the two screws (#66) to remove the contact unit. Take out the four screws (#136) to remove the bayonet mount. Take out the washer (#176).
Contact unit Bayonet mount #1364

#176 #662

5th lens group Caution: Removing the 5th lens group needs the lens alignment work after the assembly. Therefore, at service facilities where the lens alignment cannot be performed, do NOT remove the 5th lens group.

#1133 #1513

5th lens group

Lens body

- D3 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A VR lens group unit Turn the VR SW to OFF. Align the concave portion of the VR-fixing tool ( J11321) and the FPC of the contact unit, and fit the two pins of the tool into the two holes of the lens. Then assemble the VRfixing tool into the lens.
Pin 2 Concave portion New tool

J11321

Contact unit
Remove the VR lens group and washer(s) (#138 selected from A J) with the VR lens-assembling tool ( J11324). Remove the VR-fixing tool ( J11321) from the lens.
VR lens G-assembling tool ( J11324)

VR lens group

#138A J
- D4 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A 3rd lens group

3rd lens group

3rd lens-G assembling tool ( J11323)
2nd lens group, 1-2nd lens group, 1-1st lens group Removing the 1-1st lens group needs the lens alignment work after the assembly. Therefore, at service facilities where the lens alignment cannot be performed, do NOT remove the 1-1st lens group. Take out the four screws (#142) and the four washers (#151). Then remove the 1-1st lens group and the washer(s) (#152 selected from A-J). Remove the 1-2nd lens group and the washer(s) (#137 selected from

1-1st lens G #1424 #1514

A-J) with the 1-2nd lens-G assembling tool ( J11320). Remove the 2nd lens group.

#152A J

1-2nd lens G

#137A J

2nd lens G
- D5 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A Rubber ring

Rubber ring

Filter ring unit
- D6 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A Focus ring (2) unit

Focus ring (2) unit

Focus ring (1) unit
- D7 AF-S VR MC 105/2.8G -

MF brush unit

Red: MF brush unit Black: MF brush unit

Power source brush unit

Black: Power source brush unit 1 Red: Power source brush unit 1 Yellow: Power source brush unit 1

Yellow: Power source brush unit 2 Red: Power source brush unit 2 Black: Power source brush unit 2 Caution: After removing the wires, suck the solder off completely. Otherwise, the SWM unit cannot be removed. FS40(#56)
- D8 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A SWM unit

#1483 #1473

Caution: When disassembling, Do NOT touch the upper surface of the pattern.

#167 SWM unit

- D9 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A Change SW unit

SW FPC

Soldering bridge4 #132

Change-SW unit

Name plate
window Misdescription Caution: The name plate and focus ring do not have to be removed except the case when parts are replaced. Remove the focus window (#94) (which is attached with the adhesive double-coated tape). the adhesive double-coated tape).
Remove the name plate (#95) (which is attached with

External tube unit

External tube unit #1192

#118 Changed page 1

- D10 AF-S VR MC 105/2.8G -

May. 26. 2006

JAA63051-R.3689.A Focus index unit

Focus index unit

GMR unit
- D11 AF-S VR MC 105/2.8G -

Rear outer tube unit

Take out the screw (#144), and remove the lug plate. (ref. Fig. 1) Take out the four screw (#154), and remove the rear outer tube unit.

Lug plate

Fig. 1
Remove the positioning pin (#97).
- D12 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A Mechanical-coupled block Take out the screw (#113).
Take out the two screws (#113), and remove the block-retaining plate (#184).

#184 #1132

Remove the mechanical-coupled block. Then attach the screw (#113) temporarily that was taken out in .
Mechanical-coupled block #113 VR ON/OFF-change brush #169
- D13 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A Main PCB unit

Gyro-FPC

MR FPC

Focus FPC

Black: Lug plate
Blue: VR FPC Black: VR FPC

SWM power FPC

Peel off the adhesive double-coated tape.
Connector of the main PCB

Connector of VR unit

- D14 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A VR unit

VR unit

Caution: The washer(s) (191: selected from A G) is/are put in some VR units. When the VR unit is NOT replaced, insert Fixed tube this wahser as it is. When the VR unit is replaced, perform "Slant check of VR unit" on Page A12.

GMR FPC

GMR unit #144 #124 #123
- D15 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A Focus coupling key

GMR tape unit

Focus coupling key

Focus brush unit

- D16 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A GMR tape unit Caution 1: Do NOT touch the tape of the GMR tape unit directly with hands. Take out the two screws (#98) through the holes of the GMR tape unit, and remove the two rollers (#99) and the two washers (#96). Rotate the GMR tape unit in the direction of the arrow "A" all the way to the limit, then remove it upwards.

Loosen the screw (#83) and move the encoder brush unit from side to side. Adjust so that the contact surface of the brush is at "" position of the focus pattern. Tighten the screw (#83) and apply the screwlock. Remove the tool (J11319) from "A" hole.
" (infinity)" position of the focus pattern.

Adhesive: Screwlock

- A7 AF-S VR MC 105/2.8G -

Tool-pin hole

Insert the drill with 1.2, etc into the two tool-pin holes. Fix the GMR unit, retaining plate (#124), and GMR-retaining plate spring (#123) with the two screws (#83). Fix the GMR FPC with the screw (#144).

#124 #123

- A8 AF-S VR MC 105/2.8G -
MR encoder output-waveform inspection
When the GMR unit is disassembled and replaced, be sure to make an adjustment. 1. Device: Single-output rated voltage power-supply Oscilloscope Self-made tool 1 unit: 5V 100mA 1 unit 1 unit
Caution: If there is a problem with continuity between the contacts of the self-made tool and the relay FPC, the contacting surface of the relay FPC may be dirty, eroded, or oxidized. So polish the contacts and connect them. 2. Preparation of the lens for measurement Assemble the MR-head-attached zoom index ring unit, the SWM, and the MF ring into the lens body. Then connect the assembled lens to each measuring machines as follows:
Attachment diagram To back side PCB (Front) PCB (Back) Self-made tool that is created by using the main PCB of AF-S VR 18-200
Oscilloscope (2ch) Oscilloscope (1ch) Rated voltage power-supply (+) Rated voltage power-supply (-)
Rated voltage power-supply
Caution: The connector of the back of the PCB is not used. Connect to the front-side connector of the self-made tool PCB. (GND)

Set value 5.0 V 100 mA

GMRFPC

Self-made tool

Oscilloscope (2ch type)
How to inspect and adjust: Confirm that the electric current and voltage of the connected rated voltage power-supply are set values, then turn it ON. Set the oscilloscope, and turn the GMR tape unit by holding the focus coupling key. Note: The waveform varies according to the rotational speed of the focus ring. So change Time/Div setting accordingly.

- A9 AF-S VR MC 105/2.8G -
Oscilloscope setting V/Div (ch1) :50 mV V/Div (ch2) : 50 mV Coupling : AC Time/Div :5 m Sec
Trigger Mode :NORMAL Trigger Coupling : AC Trigger Source :CH1 Trigger Position : 4 div Trigger Type :EDGE Trigger Level : 0V INPUT (ch1) :AC INPUT (ch2) :AC

Amplitude

Standard: Amplitude of all pulses/waveforms is 130 mV or more. Note: Check the waveform by moving the focus ring back and forth from the infinity-end to the close-end positions entirely.
In case large waveform-noise (as shown in Fig. 1) is detected, use the FILTER function. How to set FILTER function (e.g. DL1540 manufactured by YOKOGAWA 1. Press the FILTER button. 2. Select Smooth of the menu on screen and turn it ON.
In case the amplitude is small, disassemble up to the stage
of the GMR sensor FPC unit. Then if the deformation is detected in the MR head, correct the deform of the MR head. On the other hand, if such correction is impossible or no deformation is detected, replace the GMR sensor FPC unit. (Fig.2) Note: When adjustments are made, prevent the magnetic surface and MR head from touching the magnetized driver bit. Otherwise, the magnetic data may be damaged.

Fig.2 MR head GMR unit

- A10 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A Ref. 83 As shown in Fig. 3, if the amplitude of only either CH1 or CH2 is small, one of the 2 screws (#123) may be loosened, so check for it. If this is not the case, the MR head may malfunction, so replace the GMR sensor FPC unit and make a readjustment.

Misdescription

Fig. 3
As shown in Fig. 4, if the amplitude partially drops between the infinity and the close-distance, the magnetic data of the tape may be damaged. So replace the main fixed tube unit and make a readjustment. Replacing only the magnetic surface is impossible.

Fig. 4

Turn off the rated voltage power-supply.

Changed page

- A11 AF-S VR MC 105/2.8G -
Tighten the four screws (#160) in the order from to .

#1604

Caution: The washer(s) (191: selected from A G) is/are put in some VR units. When the VR unit is NOT replaced, insert this wahser as it is. When the VR unit is replaced, perform Fixed tube "Slant check of VR unit" on the next page.

Slant check of VR unit

New tool
Mount the VR fixing tool ( J11321) by fitting in the holes of the VR unit.
- A12 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A Mount the VR mirror tool ( J11330) on the VR unit with the mirror-assembling tool ( J11331). Remove the VR-fixing tool ( J11321).

J11330

J11331
Place a parallel glass or parallel mirror, etc, on the measurement stand. For a parallel glass, a super telephoto, G1 lens, such as AF-S300 mm can be used, while for a parallel mirror, the main-mirror 45-degree positioning tool, etc, can be used. Fine-tune the position of the auto collimator, and perform the optical axis alignment with the measurement stand.
Parallel glass, parallel mirror, etc
- A13 AF-S VR MC 105/2.8G -
Remove the parallel glass which was placed on the measurement stand. Set the fixed tube as shown in the right picture.
As shown in the right picture, measure a position difference of the cross lines, which are indicated by the mirror tool and the collimator.
Cross lines of the mirror tool
Tighten the four screws (#160) in the order from to .
If the above difference is 4 min or more, select and put the washer (#191A G) in order to correct the slant. Remove the mirror tool after the adjustment.

#191A G

- A14 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A Main PCB unit Connect the connector of the main PCB to the connector of the VR unit. Fix the main PCB with the three screws (#140).

Connector of the VR unit

Solder the two wires and the lug plate. Connect the gyro-FPC, MR-FPC, SW-FPC, focus-FPC, SWM power-FPC, and the contact unit to each connector.

MR-FPC

Focus-FPC

SW-FPC

SWM power-FPC
Arrange the two wires and attach them on the adhesive double coated tape.
- A15 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A Mechanical-coupled block Take out the setscrew (#113) of the focus-FPC, and attach the mechanical-coupled block by fitting the coupling pin in the concave portion of the mechanical-coupled block.
Apply to the edge surface of vertical groove. Grease: G92KA
Mechanical-coupled block VR ON/OFF-change brush #169
Adhesive: Screwlock Grease: G92KA
Attach the block retaining plate (#184), and fix it with the two screws (#113).

- A28 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A VR lens group unit Turn the VR SW to OFF. Align the concave portion of the VR fixing tool ( J11321) with the FPC of the contact unit, and in addition, align the two pins of the tool with the two holes of the lens, then the mount VR fixing tool.
Pin2 Concave portion J11321 New tool
With the VR lens-G assembling tool ( J11324), put the washer(s) (#138 selected from A-J) and mount the VR lens group unit. Remove the VR lens-G assembling tool ( J11324) and VR fixing tool ( J11321) from the lens.
VR lens-G assembling tool ( J11324) J11321
Apply to approx. 10 mm in length of the threaded portion.

VR lens-G unit

- A29 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A New tool 5th lens group Caution: Removing the 5th lens group needs the lens alignment work after the assembly. Therefore, at service facilities where the lens alignment cannot be performed, do NOT remove the 5th lens group. Align the three pins of the 5th lens-G assembling tool ( J11325) with the three holes of the 5th lens-G unit, and mount the tool on the lens body. Align the three holes of the lens body with the three pins of the tool, and assemble them. Then fix them with the three washers (#151) and the three screws (#113). Remove the tool from the lens body. #1133 Caution: Tighten the #1513 three screws (#113) in the order from J11325 to .

5th lens-G Pin3

Hole3 Lens body
Adhesive: Lockend B Apply to the three screws (#136) except "A". Direction for positioning
Fit position of the holes of the washer (#176), and mount it. Insert the aperture lever (#109) of the bayonet mount into the aperture unit by fitting in the bending part of the aperture unit.

#109 #176A M

Fix the bayonet mount with four screws (#136). Fix the contact unit with the two

screws (#66).

- A30 AF-S VR MC 105/2.8G -
Preparation for inspection & adjustment of main PCB
In case of replacing the main PCB, SWM unit or MR encoder unit, be sure to make the necessary adjustments as follows: 1. Adjustments Adjust the MR duty Adjust the driving frequency and motor control (including Focus preset adjustment) 2. Equipment and tools to be required Single output rated voltage power supply: 1 unit ( 6.0V 3.0A) Oscilloscope: 1 unit For adjusting the MR duty, the driving frequency and motor control

CH1=5V DC 10:1 CH2=5V DC 10:1 5ms/div NORM 200KS/s
Setting of oscilloscope V/DivCH1 V/DivCH2 Coupling Time/Div Trigger Mode Trigger Coupling Trigger Source Trigger Position Trigger Type Trigger Level 5V 5V DC 5 m Sec NORMAL DC CH -4 div EDGE 2.5 V
Following the instruction on the screen, rotate the MF ring slowly by hand in the direction from the close distance to the infinity position. Make sure that the waveform on the oscilloscope has duty 50% and stop the MF ring at the infinity-end. NoteIn case the waveform from infinity to close distance position or vice versa does not have duty 50%, repeat "INSPECTION AND ADJUSTMENT OF THE MR ENCODER OUTPUT WAVEFORM" on Page A9.

Sandard 10.0

- A33 AF-S VR MC 105/2.8G -
Adjustment of Driving frequency and Motor control
In case of replacing the main PCB, SWM unit and MR encoder unit, be sure to make adjustments. The method of connection of the rated voltage power supply and measuring tools is the same as "ADJUSTMENT OF MR DUTY". Make sure that the electric current and voltage of the rated voltage power supply are set to the set values on the PC screen. Turn the rated voltage power supply ON. Select "2. ADJUSTMENT FOR DRIVING FREQUENCY & MOTOR CONTROL" in the menu of the AF-S VR105 inspection program. The lens automatically starts the driving of scanning.
When "Fig. 1" screen is displayed, and if "OK" is clicked, "drive frequency and the motor control adjustment" is completed. If "Adjustment could not be executed." of "Fig. 2" is displayed, make readjustment. Even after the readjustment, if "Fig. 2" screen is still displayed, adjust the "MR duty" again and perform "drive frequency and the motor control adjustment" again. However, after all the above, if the adjustment is still impossible, the SWM unit, the fixed tube unit, GMR tape unit, or MR head unit may be defective.
- A34 AF-S VR MC 105/2.8G -
Inspection of Lens operations
Check the lens operations by using a personal computer after assembling. Check by personal computer Check by the following considerations: 1. MR encoder operations Drive the scanning of lens and check the total number of pulses. In case the MR head of the MR encoder and the magnetic tape are misaligned, the number of pulses becomes out of standard. 2. Lens-servo stop accuracy Check the number of overrun/underrun pulses (deviation of the stop position from the target position) per the specified lens driving. In case the irregularity of mechanical operations does not take place in the focus ring driving unit, the underrun tends to occur if it is heavy in the cam ring rotation of the MR encoder, while the overrun tends to occur if it is light in its rotation of the MR encoder. 3. Lens-servo time Check the servo time (from starting and stopping the servo) when driving the specified lens by using the oscilloscope. In case the irregularity of mechanical operations does not take place in the focus ring driving unit, the servo-time tends to be long if it is heavy in the cam ring rotation of the MR encoder, while the servo-time tends to be short if it is light in its rotation of the MR encoder. 4. Switches and lenses Check the ON/OFF operations of switches and the operating condition of the distance encoder. After inspections 1. When the MR encoder operations are not up to the standard: Readjust the MR duty. (ref. Page A33.) In case the pulse is not up to the standard, adjust the output waveform of the MR encoder again. (ref. Page A9.) Misdescription In case the pulse meets the standard, replace the cam ring unit fixed-tube unit or the mechanical Addition parts that make the focus ring drive. 2. When the lens-servo stop accuracy is not up to the standard: Check the output waveform of the MR encoder. If it is normal, replace the fix-tube unit or the mechanical parts that make the focus ring drive.

Reference When the chart is shot in the above , before sliding the tripod to the front by 18 cm and shooting seven times, click "Focusing" button and check the following screen. If - is performed so that the point images shape of periphery becomes about the same and also that of center becomes about the same, this will shorten the alignment work.

Point image of periphery

Point image of center
- A55 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A How to create Setting board of "Lens alignment chart" and "Viewer"
1. Summary 1-1: In order to get necessary data for lens alignment, this board is created to use for setting a special chart and light viewers (for chart illumination), while taking pictures of the special chart with a digital camera. 2. Preparation 2-1:Prepare a board (760 x 880 x 20 mm) or 2 package cardboard boxes (size 2.33). (Note) Because you have to cut out the shape to embed light viewers, choose package cardboard boxes (size 2.33) or material which can be easily cut. ref. Fig. 1 3. Procedure In this document, 2 package cardboards are used 3-1: As for the 1st flattened cardboard box (size 2.33), check the positions for embedding the light viewers, and cut out the shape at 5 locations (shaded parts/size 154 x 245 mm) as shown below. ref. Fig. 2 (Note) Cutting the shape slightly smaller than the actual size of viewers makes it easier to fit the positions of viewers tightly. 3-2:Put the 2nd flattened cardboard box (size 2.33) and the above cut-out 1st cardboard together as one, and fix them by taping at 4 sides. ref. Fig. 3 3-3:Then as for the 2nd flattened cardboard box, cut out the shape again by matching the cut-out size of 3-1 for each viewer. ref. Fig. 4 3-4:Reinforce the edges of cut-out parts with tape. (Note) To prevent viewers falling off, secure them with tape around the edges. ref. Fig. 5 3.5: Blacken around the setting board (with black spray, etc).

880 154

To prevent viewers falling off, attach Velcro tape on the back of
the cardboard. Inthis document, 2mm-width hook and loop fastener is used.
4. Prevent Viewers from falling off (In this document, 2-mm width Velcro tape is used.) 4-1: As shown above, when viewers are embedded, secure them with square pieces of Velcro tape (hook and loop fastener) on the back of the cardboard to prevent viewers falling off.
- A56 AF-S VR MC 105/2.8G -
Fig. 1- Prepare two package cardboard boxes, and flatten them as below. Fig. 2 - As for the 1st flattened cardboard box, cut out the <154 x 245 mm sized> shape at 5 locations.

When "OK" is shown on the execution screen, point the cursor to "Next" button and click it.
- A64 AF-S VR MC 105/2.8G -
Gamma and Shift Adjustment (Automatic control)
Adjust the inclination and control center position based on the position sensor output of the VR unit. During the adjustment, the message appears to confirm the lens position of angle (0 or 90 degrees). Therefore, set the lens to the position and click "OK" button.
When "OK" is shown on the execution screen, point the cursor to "Next" button and click it. Electromagnetic Lock Center Position Adjustment (Automatic control) Adjust the electromagnetic lock center position. During the adjustment, the message appears to confirm the lens position of angle (0 or 90 degrees). Therefore, set the lens to the position and click "OK" button.
When "OK" is shown on the execution screen, point the cursor to "Next" button and click it. The inspection mode starts automatically. When the following is displayed on the execution screen, point the cursor to "Next" button and click it.
- A65 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A Mechanical Lock Inspection When the mechanical lock inspection is made, write the inspection result data as the adjustment value. The below 1 and 2 screens are displayed alternately, so turn the VR switch to ON/OFF 5 times for the lens position 0 and 90 degrees respectively, according to the indicated instructions.

Screen 1.

Screen 2.
When the message "Finished rewriting checksum value" is shown, click "OK" button. Turn the VR switch to OFF according to the message, and click "OK" button to exit the adjustment screen. Note: If "NG" is shown during the adjustment, click "Next" button to exit the inspection mode. Go back to the Lens Selection screen after rewriting the checksum value, and make the adjustment again. If "NG" appears even after making the adjustment a few times, the VR unit, the gyro PCB, and the main FPC, etc should be defective.
- A66 AF-S VR MC 105/2.8G -

VR Gyro Adjustment

Point the cursor to the check box before "VR Gyro Adjustment", and click it. Point the cursor to "Execute" button, and click it.
The left message appears. Set "Frequency" of "Telephoto" to 5.0 Hz in the settings of the VR lens adjustment equipment (J15380).
Viewed from above Laser switch knob
Loosen the laser switch nut of the VR lens adjustment equipment (J15380), and rotate the knob in the arrow direction to irradiate laser light.

How to obtain the minimum value of the vibration width Measure the vibration width while changing the adjustment value that is set every 0.02-Step as shown below. The peak zone of the minimum vibration width can be obtained by the actual measured value. The center of the peak zone becomes the adjustment value.
Gyro Gain Adjustment Value Vibration width Actual measured value
0.90 0.92 0.94 0.96 0.98 1.00 1.02 1.04 1.06 1.08 1.10
15.5 mm 14.5 mm 14.0 mm 13.5 mm 13.0 mm 13.0 mm 13.0 mm 13.5 mm 14.0 mm 14.5 mm 15.0 mm
Note: Measure the vibration width in the half a millimeter (0.5 mm).

Changed page

- A70 AF-S VR MC 105/2.8G -
JAA63051-R.3689.A Press "STOP" button of VIBRATION switch of the VR adjustment equipment to stop vibrations. Rotate the lens through 90 in the direction indicated by the arrow, then press START button of VIBRATION switch to start vibrations. At the 90 position, adjust the angle misalignment and make gyro-gain adjustment. Note: When adjusting the lens at the 90 position, adjust by the buttons for the adjustment at 90 position as shown below.
Buttons for adjustment at 90 position
After the adjustment, click "Rewrite" button to write the adjustment value in EEPROM in the lens. Then, click "EXIT" button to exit the adjustment mode. Note: If clicking "EXIT" button without clicking "Rewrite" button, the adjustment value is not recorded and the adjustment details are not written. Click "Quit" button on the adjustment items screen to go back to the Lens selection screen. Note: Do NOT remove the lens or turn OFF the VR lens adjustment equipment until going back to the Lens selection screen. Otherwise, troubles may occur such as incorrect recording of the adjustment value due to blocked communications, etc.
- A71 AF-S VR MC 105/2.8G -
Criteria for VR performance
Before making the VR adjustment of defective products by using the equipment, refer to the following.

Check

Mount the lens on the appropriate body Set the VR mode to "ON". Repeat pressing ON/OFF of the shutter release button a few times at intervals of a few seconds during half-release timer.

- T2 AF-S VR MC 105/2.8G -
NEW TOOL RJ RJ No. J19025 NAME OF TOOL POINT TESTER PT-1200 discontinued OTHERS

J15380-4

6D( ) AUTO COLIMETER 6D FOR J15380
Possible to buy from Nikon instech.

J19128

LENS ALIGNMENT CHART

J19128A

J19128 LIGHT VIEWER (J19128)

J19129

LENZ ALIGNMENT EQUIP.SLIDE RAIL
RJNo.is not available I-40 EDB0011 G92KA MZ-800S OS-30MF RR GE-8 EM-60L
OSCILLOSCOP GREASE FOR AF LENS 1401C SCREW LOCK 1401C FLOIL (G92KA) 20G DRY SURF MZ-800S DRY SERF OS-30MF(OIL BARRIER) RR RUBBER GREASE RR GREASE FOR AF LENS GE-8 1KG 1Kg MORI COAT 1Kg can
- T3 AF-S VR MC 105/2.8G -

Making of Self-made Tool

repairs, use the defective one.) Make a self-made tool according to the following procedure.
To inspect and adjust the output waveform of MR encoder, it is necessary to make a self-made tool by using the RP main PCB (IS020-426) of AF-SVR18-200. (If there is a defective main PCB after replacements/

Use this range. Main PCB

Remove the mounted parts/elements (condenser, transistor, IC, etc.) from the both faces of the PCB within the range of the dotted lines. (See

Connector

the left.) Do not remove the connector. (The parts/elements are not always needed to be removed, if they are not affected by the next cutoff or soldering.) Cut off the PCB along the dotted lines.
Solder the three wires on the pattern of the front-side PCB.
Solder the one wire on the pattern of the back-side PCB.

VCC (5.0V)

PCB (Back)

PCB (Front)

- T4 AF-S VR MC 105/2.8G -