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Nikon JAA79201 Repair Manual
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Nikon JAA79201 Repair Manual

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Printed in Japan May 2005
AF-S DX Nikkor ED
18-55/3.5-5.6G
JAA79201
JAA79251
REPAIR MANUAL
作成承認印
Silver
Black
Copyrigh ｃ 2005 by Nikon Corporation.
All Rights Reserved.
無断転載を禁ず !!
JAA79201-R.3669.A
配布許可印
サービス
計画課
Ｍ

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Summary of Contents for Nikon JAA79201

  • Page 1 JAA79201-R.3669.A 作成承認印 配布許可印 サービス 計画課 Ｍ AF-S DX Nikkor ED 18-55/3.5-5.6G JAA79201 Silver Black JAA79251 REPAIR MANUAL Copyrigh ｃ 2005 by Nikon Corporation. All Rights Reserved. 無断転載を禁ず !! Printed in Japan May 2005...

  • Page 2: Specifications

    JAA79251-R.3669.A Specifications Type of lens: G-type AF-S DX Zoom-Nikkor lens with built-in CPU and Nikon bayonet mount (Specially designed for use with Nikon digital SLR – Nikon DX format – cameras) Focal length: 18mm–55mm Maximum aperture: f/3.5–5.6 Lens construction: 7 elements in 5 groups (1 ED and 1 aspherical lens elements) Picture angle: 76°...
  • Page 3 JAA79201-R.3669.A - Ｄ1･ AF-S 18-55/3.5-5.6G -...
  • Page 4 JAA79201-R.3669.A - Ｄ2･ AF-S 18-55/3.5-5.6G -...
  • Page 5 JAA79201-R.3669.A #103 - Ｄ3･ AF-S 18-55/3.5-5.6G -...
  • Page 6 JAA79201-R.3669.A ・ Take out the screw (#155) to remove the M/A change-SW unit(#B22). - Ｄ4･ AF-S 18-55/3.5-5.6G -...
  • Page 7 JAA79201-R.3669.A Washer #101A ～ J×n - Ｄ5･ AF-S 18-55/3.5-5.6G -...
  • Page 8 JAA79201-R.3669.A Straight key unit - Ｄ6･ AF-S 18-55/3.5-5.6G -...
  • Page 9 JAA79201-R.3669.A Rear fixed tube ・ Set the M/A change-SW unit (#B22) to A mode. Detach it from the window of the rear fixed tube (#57) and remove the rear fixed tube. - Ｄ7･ AF-S 18-55/3.5-5.6G -...
  • Page 10 JAA79201-R.3669.A Remove the zoom/distance FPC from the connector of the main-PCB unit (#B1001). ・ - Ｄ8･ AF-S 18-55/3.5-5.6G -...
  • Page 11 JAA79201-R.3669.A M/A change-SW unit ・ Remove 2 lead wires of the M/A change-SW unit (#B22) from the main PCB unit (#B1001). #B22 Contact unit ・ Remove the contact unit (#B6). - Ｄ9･ AF-S 18-55/3.5-5.6G -...
  • Page 12 JAA79201-R.3669.A ・ Remove the polyester tape (#77) from the zoom ring (#52). Zoom cover ring - Ｄ10 ･ AF-S 18-55/3.5-5.6G -...
  • Page 13 JAA79201-R.3669.A Zoom ring ・ Take out 2 screws (#102) that attach the zoom ring (#52). #102×2 - Ｄ11 ･ AF-S 18-55/3.5-5.6G -...
  • Page 14 JAA79201-R.3669.A Fixed tube unit ① Silicon rubber ・ Remove 2 silicon rubbers (#56) from the square grooves of the fixed tube. ② MR unit ・ Remove the MR unit (#B7) from the fixed tube. ・ Remove the FPC of the MR unit from the fixed tube.
  • Page 15 JAA79201-R.3669.A ③ SWM unit Gear - Ｄ13 ･ AF-S 18-55/3.5-5.6G -...

  • Page 16: Assembly / Adjustment

    JAA79201-R.3669.A 2. Assembly / Adjustment Fixed tube unit ① Cam tube unit (Helicoid ring, Cam ring) ・ Align the cam ring (3 grooves between convex portions on the outer diameter surface) with the helicoid ring (3 convex cams on the inner diameter surface) and assemble the rings by turning them.
  • Page 17 JAA79201-R.3669.A ③ SWM unit ・ Assemble the gear (#513) into the SWM unit (#B501 ） . #513 - Ａ2･ AF-S 18-55/3.5-5.6G -...
  • Page 18 JAA79201-R.3669.A ④ MR unit ・ Assemble the MR unit (#B7) into the fixed tube. - Ａ3･ AF-S 18-55/3.5-5.6G -...
  • Page 19 JAA79201-R.3669.A Zoom ring ・ Align 2 notches of the fixed tube with 2 convex portions of the zoom ring (#52) to assemble them. Then turn the zoom ring, and fit 2 convex portions of the cam ring into 2 holes of the zoom ring.
  • Page 20 JAA79201-R.3669.A Filter ring unit ① Turn the zoom ring in the direction of the arrow (TELE-side). SWM unit ② While lifting the clutch gear, turn the key of the focus ring all the way in the direction of the arrow.
  • Page 21 JAA79201-R.3669.A ・ How to inspect and adjust: ① Confirm that the electric current and voltage of the connected rated voltage power-supply are set values, then turn it ON. 　 ② Set the oscilloscope. While holding the white gear of the SWM unit with tweezers, etc, up towards the bayonet side, turn the focus ring manually.
  • Page 22 JAA79201-R.3669.A 　＜ Ref. ＞ 　 ● As shown in Fig. 1, if the amplitude of only either CH1 or CH2 is small, one of the 2 screws (#218) may be loosened, so check for it. If this is not the case, the MR head may malfunction, so replace the MR holder unit and make a readjustment.
  • Page 23 JAA79201-R.3669.A ・ While pressing the zoom aperture ring on the zoom ring (#52), attach the polyester tape (#77) to cover the boundary line of the entire circumference of the 2 rings. Zoom cover ring - Ａ8･ AF-S 18-55/3.5-5.6G -...
  • Page 24 JAA79201-R.3669.A Contact unit ・ Valley fold the FPC of the contact unit (#B6) with fingers to crease it. Then attach the contact unit to the fixed tube. Align the FPC-mark with the edge of the fixed tube. Main PCB unit ・...
  • Page 25 JAA79201-R.3669.A M/A change SW unit ・ Solder 2 wires of the M/A change SW unit (#B22) on the main PCB unit (#B1001). #B22 ・ Be sure to place the main PCB unit (#B1001) on the surface for positioning of the fixed tube, then fix it with 3 screws (#89×3).
  • Page 26 JAA79201-R.3669.A ・ Insert the zoom/distance FPC into the connector of the main PCB unit (#B1001) to connect it. ・ Insert the contact unit (#B6) and GMR unit (#B7) into the connector of the main PCB unit (#B1001) to connect them.
  • Page 27 JAA79201-R.3669.A Rear fixed tube ・ Set the M/A change SW unit (#B22) to "A" mode. Pass this unit through the window of the rear fixed tube (#57) and assemble them. 2nd lens group - Ａ12 ･ AF-S 18-55/3.5-5.6G -...
  • Page 28 JAA79201-R.3669.A Straight key unit ・ After applying the grease to the straight key unit A (#B25A) and straight key unit B (#B25B), fix 4 screws (#86) by aligning setscrew holes and key grooves of the fixed tube unit. - Ａ13 ･ AF-S 18-55/3.5-5.6G -...
  • Page 29 JAA79201-R.3669.A Washers #101A ～ J×n Bayonet mount unit ・ After applying the grease to the lever of the bayonet mount unit (#B27), solder the lead wire (#1131) and fix 3 screws (#78) to assemble. - Ａ14 ･ AF-S 18-55/3.5-5.6G -...
  • Page 30 JAA79201-R.3669.A Attachment of M/A change SW unit ・ Attach the M/A change SW unit (#B22) with the screw (#155). - Ａ15 ･ AF-S 18-55/3.5-5.6G -...
  • Page 31 JAA79201-R.3669.A Distance brush hole-covering plate ・ Assemble the distance brush hole-covering plate (#103) into the zoom ring (#52), and attach the polyester tape. #103 - Ａ16 ･ AF-S 18-55/3.5-5.6G -...
  • Page 32 JAA79201-R.3669.A Adjustment (Division) of Focus movement (T, W) 1. Turn the focus ring all the way to the infinity-end. 2. Fix the aperture lever so that the aperture becomes full. 3. Read each value of WIDE and TELE sides. 4. Calculate as follows: ( A －...
  • Page 33 JAA79201-R.3669.A Attachment of Contact unit ・ Fix the contact unit on the bayonet mount unit (#B27) with 2 screws (#67). - Ａ18 ･ AF-S 18-55/3.5-5.6G -...
  • Page 34 JAA79201-R.3669.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 (including Focus preset adjustment) 2.

  • Page 35: System Configuration

    JAA79201-R.3669.A 【System configuration】 Power supply (6V) Oscilloscope When the RS232C terminal of the personal computer is a 9-pin type, connect it by using the 25-pin/9-pin AF-I communication box (J15306-1) conversion connector. RJ does not supply this connector. Use products on the market.

  • Page 36: Adjustment Of Mr Duty

    JAA79201-R.3669.A Adjustment of MR duty ●In case of replacing the main PCB, SWM unit and MR encoder unit, be sure to make adjustments. ●In case of replacing the main PCB, be sure to perform [READING AND REWRITING OF EEPROM DATA.] then [3.WRITING THE FIXED VALUES.] 　How to adjust...

  • Page 37: Adjustment Of Driving Frequency And Motor Control

    JAA79201-R.3669.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 connection of the rated voltage power supply and measuring tools is the same as "ADJUSTMENT OF MR DUTY".
  • Page 38 JAA79201-R.3669.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 total number of pulses.
  • Page 39 JAA79201-R.3669.A ●AF-S DX18-55 inspection program 　 (1) Menu screen １ ２ ３ ４ ５ ６ ７ ・Menu items 　The items 1 and 2 are used for adjustments. 　The item 3 is used for reading and writing EEPROM DATA. 　The items 4~7 are used for inspections.
  • Page 40 JAA79201-R.3669.A 　 (2)   Inspection of MR encoder operations ＜＜＜　 EXECUTING 　＞＞＞ 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 41 JAA79201-R.3669.A 　The difference in pulse before and after the inspection must be within the standard. 　 　 < Standard > Total pulses　：　 1863 ± 100 PULSE(S) - Ａ26・AF-S 18-55/3.5-5.6G -...
  • Page 42 JAA79201-R.3669.A 　 (3) Inspection of lens-servo stop accuracy ① Make this inspection on both focal length 18mm (W) and 55mm (T). ② If the lens stops while inspecting the lens-servo stop accuracy, select "3. ADJUST DELAY-TIME" of the below Fig.2, and input a figure between 0-1000 for the delay time (msec: millisecond) which pre- vents stopping the lens.
  • Page 43 JAA79201-R.3669.A ① ④ ⑤ ② ③ 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. During the lens driving, the above screen is displayed.
  • Page 44 JAA79201-R.3669.A 　 (4) Inspection of lens-servo time Make this inspection on both focal length 18mm (W) and 55mm (T). 　　 Connect the probes of oscilloscope to E and H terminals of the AF-I communication box (J15306). Select the servo driving amount respectively. Each lens-servo drive time must be within the standard.
  • Page 45 　(5) Inspection of switches and lens conditions JAA79201-R.3669.A ① ② ③ ④ ⑤ 　　① Type of lens 　　② Version of CPU in the lens 　　③ Signals of the distance encoder Value changes by turning the MF ring with “M” or M/A of the lens driving mode selector.
  • Page 46 JAA79201-R.3669.A Necessary adjustment when replacing parts Inspection & adjustment for MR Adjustments encoder operations; Adjustment for MR duty (Necessary to write fixed value); lens-servo stop accuracy; Parts to be driving frequency; motor control lens-servo time; switches; replaced lens condition ○...

  • Page 47: Personal Computer

    JAA79201-R.3669.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.
  • Page 48 JAA79201-R.3669.A （ Target chart ） （ Resolution chart ） - A33 ･ AF-S 18-55/3.5-5.6G -...
  • Page 49 JAA79201-R.3669.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 50 JAA79201-R.3669.A 　⑥ Select "AF-S DX18-55/3.5-5.6G" from "Target lens list", and click "OK" button. 　⑦ When "Next, Defocus rectify only" window appears, click "OK" button. Click the "Defocus rectify..." button. 　⑧ - A35 ･ AF-S 18-55/3.5-5.6G -...
  • Page 51 JAA79201-R.3669.A ⑨ Click the "JPEG Shot" button. ⑩ 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 52 JAA79201-R.3669.A ⑫ Set the focal length of the lens to 18 mm, and the distance between the test chart and camera (CCD face) to 2 cm. ± ⑬ Perform the operations from ⑨ to ⑪ of the previous page. ⑭ Check that the values of all the focal lengths are displayed within the dotted red circle. Then click on "Rewriting".
  • Page 53 JAA79201-R.3669.A ⑯ The reconfirmation screen is displayed. Click "OK". ⑰ 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.
  • Page 54 JAA79201-R.3669.A Lens alignment 　Be sure to make an inspection and adjustment, when dissembling and repairing the lens-barrel. 1. Check the resolution By shooting the high-definition resolution chart (J63079), confirm that the TV lines are within the standard. Standard for the TV lines: 1400 or more TV lines in the center ;...
  • Page 55 JAA79201-R.3669.A (c) Check the zoom position at WIDE and TELE. The object distance: WIDE (approx.0.6m), and TELE (approx.1.5m). Set the chart fully screened in the LCD of the camera and fix it on a tripod.       Because horizontal-to-vertical/aspect ratio is different between the chart and the finder field frame, align with the vertical direction (ref.
  • Page 56 JAA79201-R.3669.A 2. Sample image: for judging the chart (on the periphery) Shoot pictures of the chart. In case TV lines of the center become less than 1400, or any of the periphery/4 corners shows the following image of defective samples (less than 1200 TV lines), make an adjustment on the next page.
  • Page 57 JAA79201-R.3669.A - Ａ42 ･ AF-S DX18-55/3.5-5.6G -...
  • Page 58 JAA79201-R.3669.A - Ａ43 ･ AF-S DX18-55/3.5-5.6G -...
  • Page 59 JAA79201-R.3669.A - Ａ44 ･ AF-S DX18-55/3.5-5.6G -...
  • Page 60 JAA7951-R.3669.A Contact FPC 接点ＦＰＣ Zoom FPC ズーム FPC Absolute focal distance FPC 絶対距離 FPC MR 磁気テープ MR Magnetic tape 接点部材へ To the contacts MR Sensor FPC MR センサー付き FPC M/A SW M/A スイッチ N 接続（表面） N 接続（表面） CN 接続（表面） Connected　with Connected　with CN Connecting CN (Face side)
  • Page 61 JAA79251-R.3669.A 外観図 Sketch drawings - F1 ･ AF-S DX 18-55/3.5-5.6G -...
  • Page 62 JAA79251-R.3669.A 組立図 Structure of the Lens - F2 ･ AF-S DX 18-55/3.5-5.6G -...
  • Page 63 JAA79201-R.3669.A 工具編 TOOLS ★：NEW TOOL RJ 番号 名称 備考 RJ No. NAME OF TOOL OTHERS 縦型焦点面検査器　ＬＴ－５００Ｓ J19002 BACK FOCUS COLLIMATER LT-500S J9001-5N 安定化電源５Ａ DC REGULATED POWER SUPPLY 5A Ｆ用レンズ受け台 J18028 LENS ADAPTER FOR FOCUS TESTER J18387 AF-S DX 18-55 点検・調整ソフト...
  • Page 64 JAA79201-R.3669.A ★：NEW TOOL RJ 番号 名称 備考 RJ No. NAME OF TOOL OTHERS J19124A 蛍光ランプ FL15N-EDL(15W) FLUORESCENT LAMP FL15N-EDL(15W) J19124 Ｚライト Z-309 Z-LIGHT　Z-309 J63079 ITE 高精細解像度チャート (4:3 反射型 ) ITE HIGH RESOLUTION CHART (4:3 REFLECT TYPE) 工具設定なし 鉛フリーはんだコテ RJNo.is not...
  • Page 65 JAA79201-R.3669.A Making of self-made tool ● It is necessary to make a self-made tool by using the RP main PCB of AF-S 24-85/3.5-4.5G. The self-made tool will be used for "INSPECTION AND ADJUSTMENT FOR THE WAVEFORM OUTPUT FROM MR ENCODER".

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