Nikon AF-S VR Zoom-Nikkor ED 24-120mm f/3.5-5.6G IF Repair Manual
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Nikon AF-S VR Zoom-Nikkor ED 24-120mm f/3.5-5.6G IF Repair Manual

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

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Summary of Contents for Nikon AF-S VR Zoom-Nikkor ED 24-120mm f/3.5-5.6G IF

  • Page 1 JAA78271-R.3598.A 配布許可印 作成承認印 AF-S VR Zoom-Nikkor ED 24-120mm f/3.5-5.6G IF REPAIR MANUAL NIKON CORPORATION Tokyo, Japan Copyright ｃ 2003 by Nikon Corporation. Recycled paper All Rights Reserved. Printed in Japan May 2003...

  • Page 2: Specifications

    JAA78271-R.3598.A SPECIFICATIONS Type of lens G-type AF Zoom- Nikkor lens having built-in CPU and Nikon bayonet mount Focal length 24mm-120mm Maximum aperture f/3.5-f/5.6 Lens construction 15 elements in 13 groups (2 aspherical lens and 2 ED lens elements) Picture angle 84°-20°30′...
  • Page 3 JAA78271-R.3598.A ※ 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.

  • Page 4: 1St Lens Group

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

  • Page 5: Index Ring, Focus Ring

    JAA78271-R.3598.A REAR COVER RING #113 × 2 #102 × 3 BAYONET INDEX RING, FOCUS RING ・Unscrew #122, and lift the M/A change-over SW in the direction indicated by the arrow. #122 M/A change-over SW - L3･ AF-S VR24-120/3.5-5.6G -...
  • Page 6 JAA78271-R.3598.A ・By passing the M/A change-over SW through the hole of the index ring, detach the index Index ring ring and focus ring. Focus ring MAIN PCB ① ・ Remove the connector (at 8 parts) and the screw (#95), and detach the main PCB. ⑧...
  • Page 7 JAA78271-R.3598.A GYRO BASE PLATE / DC-DC BASE PLATE ・ Take out 2 screws (#96) and 1 screw (#94), and lift up #29. DC-DC base plate #123 Gyro base plate ZOOM RING ＦＰＣ Zoom encoder brush #124 Tape ・ Remove the tape and detach the zoom encoder brush by displacing it. ・...
  • Page 8 JAA78271-R.3598.A #89 × 3 Zoom ring #139 × 2 DISTANCE SCALE RING #89 × 3 - L6･ AF-S VR24-120/3.5-5.6G -...
  • Page 9 JAA78271-R.3598.A SWM UNIT #66 × 2 SWM unit 4TH LENS GROUP FRAME Caution ： In case of removing the 4th lens group, the lens alignment is required. #96 × 3 At service agencies where the operations of the alignment cannot be performed, do NOT detach the 4th lens group.
  • Page 10 JAA78271-R.3598.A CAM RING 3rd lens group - L8･ AF-S VR24-120/3.5-5.6G -...

  • Page 11: 2Nd Lens Group

    JAA78271-R.3598.A 2ND LENS GROUP 2nd lens Seal group 2ND SLIDING RING, CAM RING Cam ring 2nd sliding ring #112 VR UNIT - L9･ AF-S VR24-120/3.5-5.6G -...
  • Page 12 JAA78271-R.3598.A APERTURE BLADE HOUSING GROUP #103×2 B1×7 #130 VR unit - L10 ･ AF-S VR24-120/3.5-5.6G -...
  • Page 13 JAA78271-R.3598.A ASSEMBLY APERTURE BLADE HOUSING GROUP #103×2 B1×7 #130 VR unit Position to attach #37 VR UNIT Apply the grease (MZ-800S) to Apply the grease (MZ-800S) to 3 convexities 4 convexities #69 × 3 - L11 ･ AF-S VR24-120/3.5-5.6G -...
  • Page 14 JAA78271-R.3598.A 2ND SLIDING RING, CAM RING Hole Mark Position to attach the 2nd sliding ring Apply the grease (G92KA) to the all-around outer surface of the ring 2nd sliding ring #112 2ND LENS GROUP 2nd lens Seal group - L12 ･ AF-S VR24-120/3.5-5.6G -...
  • Page 15 JAA78271-R.3598.A CAM RING Apply the grease (GE-8) to 5 Attach ： Screw Lock 3rd lens group convexities #96 × 3 ＦＰＣ #115 ・Pinch the FPC by #115, and attach #115 with the screw (#100). - L13 ･ AF-S VR24-120/3.5-5.6G -...
  • Page 16 JAA78271-R.3598.A 4TH LENS GROUP FRAME SWM UNIT Attach ： Screw Lock #66 × 2 SWM unit Engage the SWM driving lever with #112. Driving lever #112 - L14 ･ AF-S VR24-120/3.5-5.6G -...
  • Page 17 JAA78271-R.3598.A INSPECTION AND ADJUSTMENT OF THE MR ENCODER OUTPUT WAVEFORM Focus ring ・As a preparation for adjustment, assemble temporarily #24 and the focus ring. Do NOT attach the screw (#89). ●In case of disassembling or replacing the MR head, be sure to make adjustments. 1.
  • Page 18 JAA78271-R.3598.A ・Connections Power supply Self-made tool (GND) Set values ( ＋ ) 5.0 V Oscilloscope(2ch) 100 mA Oscilloscope(1ch) Power supply(+) Power supply(-) Self-made tool Oscilloscope （2ch） ・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.
  • Page 19 JAA78271-R.3598.A 　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 #644 × 2 　Note：To prevent any damages to magnetic data, do NOT let the magnetic tape and MR head touch the magnetized driver bit when adjusting.
  • Page 20 JAA78271-R.3598.A DISTANCE SCALE RING Scale plate Pull the scale plate to align with this line, and Apply the grease (MZ-800S) to attach it to #25. the convexity. ・Align the groove of #77 with the convexity of #25 to assemble. Convexity Groove Reference line...
  • Page 21 JAA78271-R.3598.A ZOOM RING ・ Pull to align the FPC in the direction indicated by the arrow and attach it. Apply the grease (MZ-800S) to 2 convexities and 2 cam grooves Convexity Zoom ring ・Attach the fine chamois leather to #24 and apply the oil barrier to the all-around attached part.

  • Page 22: Zoom Encoder Brush

    JAA78271-R.3598.A ・ Set the zoom to the TELE side, and attach and fix #70 with 2 screws (#124). #124 Attach ： Screw Lock ZOOM ENCODER BRUSH Reference position Zoom encoder brush ・ Set the zoom to WIDE side. ・Attach the zoom encoder brush at the reference position of the left.
  • Page 23 JAA78271-R.3598.A GYRO BASE PLATE / DC-DC BASE PLATE DC-DC base plate #123 Gyro base plate ・ Attach the gyro base plate and DC-DC base plate to #29, and mount them on the body with 2 screws (#96) and 1 screw (#94). MAIN PCB ①...
  • Page 24 JAA78271-R.3598.A INDEX RING, FOCUS RING ・ Attach the focus ring. ・ Pass the M/A change-over SW through the hole of the index ring and attach the index Index ring ring. Focus ring #122 M/A change-over SW BAYONET - L22 ･ AF-S VR24-120/3.5-5.6G -...
  • Page 25 JAA78271-R.3598.A INSPECTION & ADJUSTMENT OF FOCUS RING OPERATIONS ・ Check the operations of the focus ring. If the focus ring does not move coupled with the focus index (scale), which can be seen through the index window, make the adjustment by following the below procedure. Focus ring Index window ・...

  • Page 26: Position Adjustment Of Aperture Lever

    JAA78271-R.3598.A POSITION ADJUSTMENT OF APERTURE LEVER ・ Attach the tool (J18004-1) and check for the aperture opening. J18004-1 Aperture lever Standard：Full aperture ・In case the standard is not met, adjust the position of aperture lever by loosening 2 screws (#92). #92×2 1ST LENS GROUP #65×3...

  • Page 27: Rubber Ring

    JAA78271-R.3598.A #132 × 2 #131 × 2 #119 × 2 ・ Set the zoom to WIDE side. ・ Turn #55 so that the screw (#65) can be seen. ・ Assemble the 1st lens group at the above position. RUBBER RING #135 - L24 ･...
  • Page 28 JAA78271-R.3598.A CCD camera LINE GENERATOR MEGALIGHT 100 - L24-1･ AF-S VR24-120/3.5-5.6G - Additional page December. 24. 2004...
  • Page 29 JAA78271-R.3598.A Connect both the cable of VIDEO terminal of the CCD camera and the fiber-optic cable of the ・ MEGALIGHT 100 to the equipment (for periphery). Back view of Lens optical alignment equipment for center and periphery ① VIDEO cable ‘...
  • Page 30 JAA78271-R.3598.A (2) 4th lens group temporary alignment ① Mount the (self-made) center positioning tool on the lens alignment equipment (for periphery) with the groove positioned slightly toward the counterclockwise direction from the below 12 o’clock position . Then turn the tool clockwise all the way to the right, and move the lever to the left to fix it. Fixing lever Groove for release pin Center positioning tool...
  • Page 31 JAA78271-R.3598.A Holder-moving lever ③ Adjust the holder's position by rotating the micrometers for X-axis or Y-axis so that the holder touches evenly the protection ring of the center positioning tool. (Note) Without this alignment, the 4th lens may be damaged by the holder. - L24-4･...
  • Page 32 JAA78271-R.3598.A ④ Move the holder-moving lever up to lock the 4th lens group holder Move up. Holder-moving lever - L24-5･ AF-S VR24-120/3.5-5.6G - Additional page December. 24. 2004...
  • Page 33 JAA78271-R.3598.A ⑧ Unlock the holder-moving lever, and move the holder down slowly by the lever. ⑨ Turn the power of the monitor, LINE GENERATOR, and MEGALIGHT 100 to ON. By checking the screen of the monitor, rotate the micrometers (X and Y) so that the intersection point of the cross lines* (calibrated) comes near the center of the monitor.
  • Page 34 JAA78271-R.3598.A ⑩ When the intersection point of the cross lines comes in the center, tighten the 3 screws of the 4th lens chamber with the alignment screwdrivers. (Note) When the holder is raised, the intersection point of the cross lines is misaligned. So make an adjustment by considering this.
  • Page 35 JAA78271-R.3598.A (3) Chart shooting for the 4th lens alignment ① Prepare a camera (D100). Set the shutter speed to “M1/80”and the focus mode to “S”. On the shooting menu, set the Image Quality mode to “RAW”, the WB to “Preset”and the ISO to “200”. ②...
  • Page 36 JAA78271-R.3598.A ⑤ Fit the lens to be examined in the camera. Set the zoom to TELE (120 mm) .　　　　　　　　　　　　 Set the lens focus mode to "M/A", and VR to "OFF". ⑥ By looking through the viewfinder, adjust the height and tilt to make the chart fill the entire finder field frame.
  • Page 37 JAA78271-R.3598.A ⑫ Set the focus mode of the camera (D100) to "M". 　　　　　　　　　　　　　　　　　　　 ⑬ Slide the tripod to the front by 30 cm. ⑭ Click the "measurement" button of the adjustment software. AF-S24-120/3.5-5.6GVR - L24-10 ･ AF-S VR24-120/3.5-5.6G - Additional page December.
  • Page 38 JAA78271-R.3598.A ⑮ When the shutter of the camera is released, slide the tripod to the back by 10 cm and make a remeasurement. ⑯ Again, slide the tripod to the back by 10 cm and make a remeasurement. Repeat this operation 4 more times, totalling in 7 measurements. (The total sliding distance is 60 cm.) 　　...
  • Page 39 JAA78271-R.3598.A ⑰ After the 7 measurements, point the cursor to the confirmation screen of the software. Click it 3 times, and if "END" is displayed on the Information, the lens optical alignment is completed. If "END" is NOT displayed (e.g. : X directions:+1, Y directions:-1), go to the next “(4) 4th lens group alignment (periphery alignment)”.
  • Page 40 JAA78271-R.3598.A (4) 4th lens group alignment ① Fit the lens in the equipment (for center). (ref. ① of (2) for how to fit in it.) ② Turn the power of the monitor, LINE GENERATOR, and MEGALIGHT100 to ON. ③ Press the "LINE ON/OFF" button of LINE GENERATOR. Turn the knobs of “X1” and “Y1” so that X- and Y-lines are displayed on the monitor.
  • Page 41 JAA78271-R.3598.A Unlock the holder-moving lever, and move the holder down slowly by the lever. ④ Insert the alignment screwdrivers into the screw holes of the 4th lens chamber, and loosen the 3 screws. ⑤ Rotate the micrometers (X and Y), and shift the cross lines by the scales that were results of the chart ⑥...
  • Page 42 JAA78271-R.3598.A [ How to create positioning tool of 4 th -lens-group holder for lens alignment (AF-S VR 24-120/3.5-5.6G) ] It is the same tool with AF-S ED 24-85/3.5-4.5G 1: Summary 1-1: This is a positioning tool of the 4th lens group holder for lens alignment, in order to secure the position for attaching the 4th lens group temporarily.
  • Page 43 JAA78271-R.3598.A 3-3: Turn the rear cover ring clockwise, which was attached to the bayonet mount. Then stop at the position as shown in Fig.3-1. Fig. 3 Fig. 3-1 3-4: Fix the following 3 locations of the rear cover ring with the instant adhesive. Fig.
  • Page 44 JAA78271-R.3598.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.
  • Page 45 JAA78271-R.3598.A (Fig. 1 - Prepare 2 package cardboard (Fig. 2 - As for the 1st flattened cardboard box, cut out the boxes, and flatten them as below.) <154 x 245 mm sized> shape at 5 locations.) (Fig. 3 - Package cardboard boxes) (Fig.

  • Page 46: Adjustment Of Back-Focus

    JAA78271-R.3598.A ADJUSTMENT (DIVISION) OF FOCUS MOVEMENT (TELE, WIDE) ● Align the infinity (∞) mark of the focus ring with the index. ● Fix the aperture lever so that the aperture is fully opened. [2nd group washer] 1. Read each value on the 70 mm and WIDE sides. 2.
  • Page 47 JAA78271-R.3598.A 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 2.
  • Page 48 JAA78271-R.3598.A 　　　　　　　　　　　　　　　　　　 【System configuration】 By using the DC/DC converter, one unit of rated voltage power supply can provide the necessary source of electricity to this system. The below is an example of using the DC/DC converter for F100. The explanations will be made after the next page on the assumption of this modified example.

  • Page 49: Adjustment Of Mr Duty

    JAA78271-R.3598.A ADJUSTMENT OF MR DUTY ●In case of replacing the main PCB, SWM unit and MR encoder unit, be sure to make adjustments. 　How to adjust 　① Make sure that the electric current and voltage of the connected rated voltage power supply are set to the set values.

  • Page 50: Adjustment Of Driving Frequency And Motor Control

    JAA78271-R.3598.A 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. 　① The method of connetion of the rated voltage power supply and measuring tools is the same as "ADJUSTMENT OF MR DUTY".
  • Page 51 JAA78271-R.3598.A ⑥ Manual adjustment In case the motor does not stop or automatic adjustment cannot be made, “Fig. 1” is displayed on the screen. At this moment, pressing “1” performs the automatic adjustment again. If the adjustment cannot be made even after making several automatic adjustments, press “2” for manual adjustment in the following screen.
  • Page 52 JAA78271-R.3598.A e.g.) Oscilloscope (DL1540) setting As shown in Fig. 2, “div” value within standard is displayed on PC screen. As shown in Fig. 3, it becomes easy to judge if the standard range of cycle of waveform is set by cursor. The standard value, TIME/DIV, and CURSOR(T1,T2) varies according to the conditions of low-speed adjust- ment, high-speed adjustment, and other lenses, etc, so check by Fig.
  • Page 53 JAA78271-R.3598.A 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 difference in pulses at the start and end. 　　・In case the MR head of the MR encoder is malpositioned on the magnetic tape, the difference in pulses gets    large.
  • Page 54 JAA78271-R.3598.A ●AF-S zoom lens (New) inspection program 　 （１）Menu screen NIKON AF-S ZOOM LENS(NEW)INSPECTION ／ ADJUSTMENT PROGRAM. 　 ［J18342］ １．ADJUSTMENT FOR MR DUTY. ９． ADJUSTMENT FOR FREQUENCY & CONTROL ２． ３． READING AND REWRITING OF EEPROM DATA Ｂ． ４．OPERATION OF MR ENCODER.
  • Page 55 JAA78271-R.3598.A 　 （２）Inspection of MR encoder operations TYPE OF LENS：　AF-S VR NIKKOR 24-120mm/3.5-5.6G　　 CPU VERSION：3.03.00 OPERATION OF MR ENCODER OPERATIONS. INSPECTING. PUSH ANY KEY TO FORWARD TO NEXT STEP. Caution：If the MF ring is rotated while the lens scanning is driven, the pulse shows an abnormal value. Do NOT touch the MF ring during operations.
  • Page 56 JAA78271-R.3598.A 　The difference in pulse before and after the inspection must be within the standard. 　 Standard of the difference in pulse 　： 0 ± 10 PULSE(S) 　 Standard of the total pulses　：　2990 ± 114 PLUSE(S) TYPE OF LENS：　AF-S VR NIKKOR 24-120mm/3.5-5.6G　　 CPU VERSION：3.03.00 INSPECTION OF MR ENCODER OPERATIONS.
  • Page 57 JAA78271-R.3598.A 　 （３）Inspection of lens-servo stop accuracy TYPE OF LENS：　AF-S VR NIKKOR 24-120mm/3.5-5.6G　　 CPU VERSION：3.03.00 INSPECTION OF DRIVING STOP ACCURACY. NUMBER OF LENS GO-AND-RETURN OPERATIONS. ：　5 / 5 TIME(S). ① LENS DRIVING TIMES. (DF0+DF1+DF2+DF3+DF4+DF5+DF6) ：　　85 TIME(S). MAXIMUM PULSE.(ABSOLUTE) (DF0+DF1+DF2+DF3+DF4+DF5+DF6) ：　　3 PULSE(S). OVER ( OR UNDER ) RUN PULE(S).
  • Page 58 JAA78271-R.3598.A 　 （４）Inspection of lens-servo time TYPE OF LENS：　AF-S VR NIKKOR 24-120mm/3.5-5.6G　　 CPU VERSION：3.03.00 INSPECTION OF LENS SERVO TIME. 　SERVO AMOUNT. STANDARD. １． ［ Df1 ］ 70ms　OR LESS. ２． ［ Df2 ］ 90ms　OR LESS. ３． ［ Df3 ］ 100ms　OR LESS. ４．...

  • Page 59: Rear Cover Ring

    JAA78271-R.3598.A 　 （５）Inspection of switches and lens conditions TYPE OF LENS：　AF-S VR NIKKOR 24-120mm/3.5-5.6G　　 CPU VERSION：3.03.00 ① ② SWITCHES AND LENS CONDITION. ：FOCUSING ENCODER　ZOOMIING ENCODER ： ：　 0-1 17 　　 0　 ： ：　 0-2 18 　　 1　 ： FOCUSING ENCODER ：...
  • Page 60 JAA78271-R.3598.A 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. Adjustment item 　・Adjustment for electrical device (MR duty adjustment, drive frequency/motor control adjustment) 2.
  • Page 61 JAA78271-R.3598.A 【System configuration】 Constant-voltage power supply (Set voltage: 6V) （＋） "E" terminal （－） "H" terminal Oscilloscope If the RS232C terminal of PC is a 9-pin type, connect it by using the 25-pin/9-pin conversion AF-I communication box (J15306-1) connector. This connector is NOT supplied as RJ, so use commercial products on the market.
  • Page 62 JAA78271-R.3598.A AF-S Zoom lens (New) inspection program ● 　(1) Menu screen ・Menu items Items 1. is used for adjustments. Items from 2. through to 5. are used for inspection Item 6. is used for confirming firmware Item from 7. through 9. are used for reading/writing EEPROM DATA. ・Selecting items 　Depending on selected items, screens appear such as the lens selection, the focal length selection, the voltage setting, the inspection mode entering, etc.
  • Page 63 JAA78271-R.3598.A Adjustment for electrical device When the main PCB or SWM unit or MR encoder is replaced, be sure to make adjustments. ● When the main PCB is replaced, be sure to perform "Writing of EEP-ROM Fixed Values". ● How to adjust: ①...
  • Page 64 JAA78271-R.3598.A 　⑤ Confirm that the waveform on the oscilloscope has duty 50% and stop the MF ring at the close-end. (Fig.1) C H 1 = 5 V C H 2 = 5 V 5 m s / d i v ●...
  • Page 65 JAA78271-R.3598.A Caution: If each waveform from "Infinity-end" to "Close-end", or "Close-end" to "Infinity-end" does not have duty 50%, perform "Inspection and adjustment of the MR encoder output waveform" on Page L15-L17 for readjustment. Standard　　H:L = 100：206 ～ 206：100（50％ ±17.3％） Ｈ Ｌ...
  • Page 66 JAA78271-R.3598.A ② When "Fig.1" screen appears, if the motor driving stands still, click "Close" to end the adjustment. Fig.1 Added page - L36-7 AF-S VR24-120/3.5-5.6G - May 17 2007...
  • Page 67 JAA78271-R.3598.A Manual adjustment ① If the automatic adjustment failed, "Adjustment could not be completed" (Fig.1) will appear. So click "Yes" and make the manual adjustment. Fig.1 　② ② Low-speed adjustment 1. Set the oscilloscope to the set values of "Fig.2", and make the low-speed adjustment of lens. 2.
  • Page 68 JAA78271-R.3598.A 　　③ ③ High-speed adjustment Make the high-speed adjustment of "Fig.4" by the same procedure as in the low-speed adjustment. (Be careful, however, that the setting values are different.) 　　　・When the adjustment is completed, click "Write adj.value" of "Fig.5". 　　If even the manual adjustment cannot be made, the SWM unit or MR head may be defective. Set values of oscilloscope (DL1540) Fig.4...
  • Page 69 JAA78271-R.3598.A 　(2) Screen for inspecting MR encoder operation ① Click "Start insp." of "Fig.1". Caution: When the MR ring is roated during the lens-scan driving, the number of pulses shows an abnormal value. So do NOT touch the MF ring in operation. Fig.1 ②...
  • Page 70 JAA78271-R.3598.A 　(3) Inspection screen of lens driving stop accuracy Make this inspection on both focal length 24mm (W) and 120mm (T) at the following five lens positions. ① (Lens position when inspecting) Tilt of Lens Position of index window Horizontal Up / Right / Left Front lens group 90°...
  • Page 71 JAA78271-R.3598.A ③ During the lens driving, the screen of "Fig.1" appears. Caution: When the MR ring is roated during the lens-scan driving, the number of pulses shows an abnormal value. So do NOT touch the MF ring in operation. Fig.1 ④...
  • Page 72 JAA78271-R.3598.A 　(4) Inspection screen of lens driving time ① Make the inspection on both focal length 24mm (W) and 120mm (T) Make the inspection on both focal length 24mm (W) and 120mm (T) at the five lens positions of "Fig.1". ②...
  • Page 73 JAA78271-R.3598.A (5) Inspection screen of switches and lens conditions ・If there is no problem with each item, click "Close" to end. If there is some problem, make the readjustment by referring to Page L36-16. ① ② ③ ④ Focus encoder signal ①...
  • Page 74 JAA78271-R.3598.A Oscilloscope: Example of settings for DL1540 ・"Fig.2" on Page L36-8 shows setting values for low-speed adjustment, while "Fig.4" on Page L36-9 shows those for high-speed adjustment. ・Setting T1 (min. value) and T2 (max. value) of one cycle of waveform beforehand, as shown by the below dotted lines, facilitates the adjustment.
  • Page 75 JAA78271-R.3598.A Inspection of Lens operations Check the lens operations by using PC after assembling. ○ Check by PC 　● Inspection item 　　1. MR encoder operations 　　・Activate the scanning drive of lens and check the difference in pulse no. when beginning and ending inspection.

  • Page 76: Vibration」Switch

    JAA78271-R.3598.A VR ADJUSTMENT 　When performing the VR adjustment, please refer to the [Instruction Manual] attached to the VR lens adjustment equipment (J15380). WARNING This equipment uses the laser beam. ● Do not look into the laser beam directory. Preparation for the VR adjustment 　①...
  • Page 77 JAA78271-R.3598.A 　Procedure to mount the lens １．Attach the lens to the equipment and move the lens retainer stand in the direction of the arrow. Lens retainer stand ２．Move the lens retainer stand to the position shown in Figure below and fix it by tightening the clamp. Clamp - L38・AF-S VR 24-120/3.5-5.6G -...
  • Page 78 JAA78271-R.3598.A 　④ Turn on the VR lens adjustment equipment (J15380) and run the adjustment software. 　⑤ Move the cursor to [AF-S VR 70-200/2.8G] in the Lens Selection window and click it. ※ If the below mesage appears, set the zoom ring again by referring to the pre-page [Procedure to mount the lens] 　and click the [OK] button.
  • Page 79 JAA78271-R.3598.A VIBRATION REDUCTION MODE SW INSPECTION 　① Move the cursor to a box in front of the [VR Mode Switch Inspection] and click to mark the check marking. 　② Move the cursor to the Execute button and click it. 　③ VR Mode Switch Inspection window is shown. - L40・AF-S VR 24-120/3.5-5.6G -...
  • Page 80 JAA78271-R.3598.A 　④ The position of VR mode switch is indicated. By turning the VR mode switch, the current position is shown in the real time. VR mode switch 　⑤ When finishing the VR mode switch, move the cursor to the [Exit] button and click it to evacuate from the inspection window.
  • Page 81 JAA78271-R.3598.A VR LENS POSITION ADJUSTMENT 　① Move the cursor to a box in front of the [VR Lens Position Adjustment] and click it to mark the check marking. 　② Move the cursor to the Execute button and click it. ③ The message like a picture on the left is shown. Set the VR mode switch of the lens to ON (Full or Release), and then move the cursor to the OK button and click it.
  • Page 82 JAA78271-R.3598.A 　・Gamma and Shift Adjustment (Controlled automatically) 　　Adjust the inclination and control center position on the basis of the position sensor output in the VR unit. 　　In-between times, the message to confirm the lens position of angle (0 or 90degrees) appears. 　　So, set the lens to the position and click the [OK] button.
  • Page 83 JAA78271-R.3598.A VR GYRO ADJUSTMENT 　① Move the cursor to a box in front of [VR Gyro Adjustment] and click it to mark the check marking. 　② Move the cursor to the Execute button and click it. ③ The message like a picture on the left is shown. Set it to the Telephoto settings.
  • Page 84 JAA78271-R.3598.A 「VIBRATION」switch 「SERVO」switch ⑤ Press the SERVO [ON] button and the VIBRATION [START] button of the VR lensadjustment equipment (J15380). 　⑥ With the equipment starts to vibrate, measure the length of the vibration width a of the laser beam. α Notes：The phenomenon that the laser spot light shakes up and down, right and left occurs during measuring the vibration width.
  • Page 85 JAA78271-R.3598.A - L46・AF-S VR 24-120/3.5-5.6G -...
  • Page 86 JAA78271-R.3598.A 　 《Reference》 　・The laser spot beam is irradiated about 18mm in diameter at 5 m ahead. 　① To adjust the vibration width at the center of the １８ｍｍ 　laser spot beam, measure the whole vibration width first. 　② Subtract the radius of the laser spot (oblique lined part) from the top and bottom of the measured 　　vibration width.
  • Page 87 JAA78271-R.3598.A ・Rotate the lens 90 ° in an arrow direction and 　then adjust the angle difference and the gyro gain. Notes：When adjusting the lens at 90 ° position, adjust it by the buttons for the adjustment at 90 ° position as shown in Figure below. Buttons for adjustment at 90 °...
  • Page 88 JAA78271-R.3598.A STANDARD TO JUDGE THE VR PERFORMANCE 　Please refer to the following chart before performing the VR adjustment for the product of which VR is defective 　with the equipment. Check １ Mount the lens to the usable body ・Set the VR mode to「ON」 Repeat to press the shutter ・Repeat to press the shutter release button lightly a few times while release button lightly...
  • Page 89 JAA78271-R.3598.A Check ２ Mount the lens on the equipment (J15380) ・How much does the vibration width reduce against those Check the vibration width of when the VR mode is OFF and ON at the VR Gyro of laser Adjustment. What is the reduction rate of the vibration width? Less than 1/5 More than 1/5...
  • Page 90 JAA78271-R.3598.A Aberration compensation data writing adjustment ・ This adjustment uses the software which calculates the aberration compensation data according to the feature of lens aberration and writes in EEPROM of the lens, in order to improve the accuracy of autofocus. Note: This adjustment is necessary when the main PCB and/or each lens part (glass, lens chamber) is replaced or when each lens part is disassembled.
  • Page 91 JAA78271-R.3598.A （ Target chart ） （ Resolution chart ） - L50-2･ AF-S VR24-120/3.5-5.6G - Additional page November 30 2004...
  • Page 92 JAA78271-R.3598.A (3) Writing aberration compensation data ① Prepare a camera (D100). Set the "Exposure mode" to "A" for full aperture and "Focus mode" to "S". On the shooting menu, set the "Image quality mode" to "FINE", "Image size" to"L" "WB" to "Preset", and "ISO"...
  • Page 93 JAA78271-R.3598.A ⑥ Click the "Defocus rectify..." button. ⑦ Click the "JPEG Shot" button. ⑧ The shutter is released after the AF operation. The shot image is automatically displayed on the PC screen. Scale the image to 100% and check which chart is in focus of the 5 resolution charts. （＋...
  • Page 94 JAA78271-R.3598.A ⑩ Set the focal length of the lens to 24 mm, and the distance between the test chart and camera (CCD face) to 2 cm. ± ⑪ Perform the operations from ⑦ to ⑨ of the previous page. ⑫ Check that the values of all the focal lengths are displayed within the dotted red circle. Then click on "Rewriting".
  • Page 95 JAA78271-R.3598.A ⑭ The reconfirmation screen is displayed. Click "OK". ⑮ An hourglass is displayed on the screen, and writing starts. The below screen is displayed after a few seconds. Turn camera OFF and turn it ON again. Click "OK", and the adjustment software restarts. Note: Unless the camera is turned off once, the value that was written in EEPROM is not reflected on the results of shooting.

  • Page 96: Adjustment Software

    JAA78271-R.3598.A Tools ★：New tool RJ No. Name Note MZ-800S DRY SURF MZ-800S GE-8 GREASE GE8 EDB0011 SCREW LOCK 1401C J18004-1 STANDARD GAUGE FOR J18004 J19002 BACK FOCUS COLLIMATER LT-500S J18028 LENS ADAPTER FOR FOCUS TESTER J18342 AF-S ZOOM LENS (NEW)INSPECTION AND Use the version date after ADJUSTMENT SOFTWARE May 10 ,2003.
  • Page 97 JAA78271-R.3598.A Making of self-made tool ●To inspect and adjust the output waveform of MR encoder, it is necessary to make a self-made tool by using the main PCB of repair parts.    The making procedure is shown below. Make a self-made tool according to this procedure. Use the main PCB for AF-S24-85/3.5-4.5G or AF-S DX 12-24/4G.
  • Page 98 JAA78271-R.3598.A 外観図 Sketch drawings - F1･ AF-S VR24-120/3.5-5.6G -...
  • Page 99 JAA78271-R.3598.A 組立図 Structure of the Lens - F2･ AF-S VR24-120/3.5-5.6G -...
  • Page 100 JAA78271-R.3598.A - F3･ AF-S VR24-120/3.5-5.6G -...

  • Page 101: Wiring Diagram

    JAA78271-R.3598.A DC/DC 基板 DC/DC PCB 実体配線図 WIRING DIAGRAM Black 接点 ＦＰＣ 磁気テープ Contact FPC SWM FPC Magnetic tape ジャイロ基板 MR センサー付き FPC ジャイロ FPC メイン基板 Gyro PCB FPC with MR sensor Gyro FPC Main PCB 絶対距離 FPC Absolute focal ズームエンコーダー distance FPC ロック...

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