Repair manual - Lens
Contents
1. Exterior fixed tube Focus index sheet D 12 4 AF 5 24 10 2 86 INC JAA80251 R 3723 A e Detach the MF ring and washer 169 from the SWM unit 169 MF ring T a SWM unit D 13 4 AF S 24 7072 86 INC JAA80251 R 3723 A Peel off the tape 196 Disconnect the GMR FPC from the connector of the main PCB Slide the connector in the direction of the arrow and remove the FPC Main PCB l W TEES LE HI H I HH ETHER Vm ee x49 nnm GMR unit Caution NEVER touch the sensor area directly by hand 73 D 14 AF S 24 70 2 86 INC JAA80251 R 3723 A Main PCB unit Take out the screw 120 Remove the contact FPC from the main PCB Remove the focus FPC from the main PCB e Remove the SWM relay FPC from the main PCB SWM relay FPC 2 AT mil mm XL JJ P s LJ w e i v Aa i Je LLALATSTIPTETEYTI Aaii E Y AY gt Pi T MTT TELLS E mL LETLLTTEEHEET ELTE UTILE LEAL JU eo Contact FPC Focus FPC Main PCB Take out the two screws 81 and two washers 74 and remove the main PCB unit D 15 AF S 24 70 2 8G INC JAA80251 R 3723 A SWM coupling key Take out the two screws 96 and remove the SWM coupling key 4 li itf SWM coupling key amp 902 Focus coupling key A Deletion2. Perform the scanning drive of lens and check the total number of pulses n case the GMR encoder is defective the number of pulses becomes out of standard 2 Lens driving stop accuracy Check the number of overrun underrun pulses deviation of the stop position from the target position per the specified lens driving amount 3 Lens driving time Check the drive time from starting and stopping the drive by using the oscilloscope when the specified lens is driven 4 Switches and lens condition Check the positions of the focus encoder zoom encoder and focus mode A 48 AF S 24 70 2 8G INC JAA80251 R 3723 A 1 Inspection screen of GMR encoder operations e Select Inspection of GMR encoder Operations on the menu Follow the instructions on the screen for preparation Then click Next Inspection of GMR encoder operations starts otepl Set the lens position horizontally otep2 Set the focus mode selector to M A otep3 Set the voltage of power supply for lens driving to b Dc step4 Turn on the power supply for lens driving Stepb Push RHESET button of the AF I communication tool 15305 1 When you are ready press Mext gt gt button Cancel oe Click Start insp button 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 If Inspection result shows Good
3. click Close button LIAS for AF S 24 7072 8G Inspection of GMR Encoder Operations Inspection result Good Difference in pulse number when beginning and ending Inep standard none specified Difference in pulse number 2 Pulse number when inspection begins 5 Pulse number when Inspection ends 7 Total number of pulses from close end To infinitv end Standard from 6550 to 6950 start Insp Total number of pulses 665 Good lt Standard gt Total pulses 6750 200 PULSE S A 49 AF S 24 70 2 8G INC JAA80251 R 3723 A 2 Inspection screen of lens driving stop accuracy Make inspections by focal length 24mm W or 70m T at the following five lens positions Lens position in inspecting Horizontal lens position Index 90 angle rightward from horizontal position Index 90 angle leftward ditto Front lens group 90 angle upward ditto Front lens group 90 angle downward ditto Click Inspection of Lens Driving Stop Accuracy on the menu Click Start insp button 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 f the lens stops in Inspection of Lens Driving Stop Accuracy input a numeric number into Delay time from 0 to 1000 msec so that the lens does NOT stop Caution The value of ADUST DELAY TIME is set by the adjustment software So as far as the len
4. 161 and 156 on the inner fixed tube Fit the convex portion of the washer 160 with the grooved guide track of the inner fixed tube and put the washer Fig 1 e Rotate the washer 160 leftwards and fit the convex portion of the washer in the concave portion of the inner fixed tube Fig 2 160 Select from A to C Standard C Convex portion of washer 156 Select from A to C This is not used in some cases 161 Select from A or B Grease EM 60L Apply to the convexed surface Inner fixed tube Grooved guide track TTE N Procedure for putting washer Concave portion of the inner fixed tube mi ac 7 A i ap a t x rm MT y Y A gt CORN NN Convex portion of washer Fig 2 A 10 AF S 24 70 2 8G INC JAA80251 R 3723 A Fixing of Washer Apply the screw lock to the engaged areas of the inner fixed tube and the washers 160 in numeric order from Fig 1 to Fig 3 WA Inner fixed tube lea 160 7 Apply here P A Adhesive Screw lock Apply here Adhesive Screw lock Apply here Adhesive Screw lock A 11 AF S 24 70 2 8G INC JAA80251 R 3723 A Focus coupling key Set the zoom to TELE end position Insert the focus coupling key and put the focus coupling pin in the key groove Focus coupling key Grease
5. A 3 AF S 24 70 2 8G INC JAA80251 R 3723 A Adjustment and Firm attachment of Ist lens G lead key As below position the Ist lens G lead key and the Ist lens G lead ring Ist lens G lead ring r l l a l l Tighten three screws 191 in numeric order from D to 3 z 191x3 Lower screw for attaching the 1st lens G lead key D A4 AF S 24 70 2 8G INC JAA80251 R 3723 A As below position the Ist lens G lead key and the Ist lens G lead ring along the white dot line 2 stlens G lead ring Ist lens G lead key Tighten three screws 191 in numeric order from 4 to 6 191x3 Adhesive Lockend B Upper screw for attaching the 1st lens G lead key A b AF S 24 10 2 8G INC JAA80251 R 3723 A e Hold the Ist lens G lead ring at the uppermost position and confirm that the 1st lens G lead ring drops by its own weight If not go back to Page A4 and make a readjustment Ist lens G lead ring Ist lens G lead ring Attach the Ist lens G lead ring with three rollers Ist lens G lead ring Be careful of the facing direction of 87 when assembled r 107x3 A 6 AF S 24 70 2 8G INC JAA80251 R 3723 A Hood fixed ring e Mount the hood fixed ring on the inner fixed tube and align A and B Index position Attach the hood fixed ring with three screws 174 174x3 Adhesive Lockend B
6. A 7 AF S 24 10 2 8G INC JAA80251 R 3723 A SWM Attach the three plate springs with two screws 96 each at three places Select the plate spring from A or B type by checking the followings e When the MF ring is rotated slowly check whether the focus index ring subsequently moves together If the focus index ring does not follow smoothly change the spring to a thicker one When the MF ring is rotated all the way to oo infinity end and close end positions check whether the only MF ring runs idle If it does not run idle change the spring to a thinner one Grease NKS 211SP Pattern surface 653 Select from A or B amp 166 Positioning of Focus index sheet Position the focus index sheet as follows 3 5mm e Adhere the focus index sheet with the adhesive double coated tape and two pieces of tape 196 Closeup Equalize the gap 1mm at both sides A 8 AF S 24 70 2 8G INC JAA80251 R 3723 A Attach the protection tape to the SWM relay FPC Do NOT attach to the FPC contacts area SWM relay FPC e Mount the SWM unit on the inner fixed tube To attach the SWM unit firmly to inner fixed tube tighten three rollers SWM unit Roller x3 L Adhesive Lockend B Inner fixed tube Be careful p the facing direction of 159 when assembled A 9 AF S 24 70 2 8G INC JAA80251 R 3723 A Putting of Washer Put the washers
7. I 40 Apply to the key groove Inner fixed tube Viewed from the front of the lens confirm that the focus coupling pin and the focus coupling key are engaged with each other Lens front Focus coupling pin AM oo infinity side Zoom TELE position A 12 AF S 24 70 2 8G INC JAA80251 R 3723 A Focus fixed tube Put the focus fixed tube with the magnetic tape facing upwards Focus fixed tube Magnetic tape Grease NKS 211SP Apply to the tape surface Mount the focus fixed tube on the inner fixed tube Be careful so that fingers or a screwdriver do NOT touch the magnetic surface Magnetic Ec Focus fixed tube Inner fixed tube A 13 AF S 24 70 2 8G INC JAA80251 R 3723 A Focus fixed tube continued Attach three rollers to the focus fixed tube in numeric order from Fig 1 to Fig 3 d Roller Adhesive Lockend B Fig l Be careful of the facing direction of 4157 when assembled e Roller Fig 2 Adhesive Lockend B de Roller Adhesive Lockend B Fig 3 A 14 AF S 24 70 2 8G INC JAA80251 R 3723 A Focus fixed tube continued Attach the focus coupling key to the focus fixed tube with two screws 96 Confirm that the focus coupling pin fits in the groove of the focus coupling Key Focus fixed tube f 96x2 Adhesive Lockend B Focus FPC Focus encoder brush Attach the focus
8. Take out the two screws 96 andtremrove the foeus coupling key Focus coupling key Focus encoder brush Take out the screw 96 and remove the focus encoder brush Changed page Ax D 16 AF S 24 70 2 8G January 10 2008 INC JAA80251 R 3723 A Focus fixed tube Attach the protection tape to the SWM relay FPC Do NOT attach the FPC contacts area Protection t SWM relay FPC rotection tape D 17 AF S 24 70 2 86 INC JAA80251 R 3723 A Focus fixed tube continued Remove the focus fixed tube from the inner fixed tube Be careful so that fingers or a screwdriver do NOT touch the magnetic surface Magnetic tape Focus fixed tube Inner fixed tube W D 18 AF S 24 70 2 8G INC JAA80251 R 3723 A Focus coupling key Set the zoom to TELE end position and disengage the focus coupling key from the focus coupling pin Focus coupling key Lens front Focus coupling pin oo infinity end Zoom TELE end position D 19 AF S 24 70 2 8G INC JAA80251 R 3723 A Removal of Washer With alcohol remove each screw lock that was applied to the washers 160 at three places Push down the washer 160 at the position of the concave portion of the inner fixed tube and turn the washer rightwards Fig 1 D Align the convex portion of the washer with the grooved guide track indicated by white dot lines then remove the was
9. n 2 7 Uma ms Backup Restoring of FLASH ROM Data 8 3 Inspection of Lens Driving Stop Accuracy Writing of FLASH ROM Fixed Values 9 4 Inspection of Lens Driving Time 5 Inspection of Lens switches and Lens condition 6 Positioning To Infinity for FFD Adjustment uit Comm port Language Communicate via AS 232C C Version for IBM PEAT compatible PC with pentium equivalent or higher processor COM apariese Copyright E 2007 Nikon corp All nights reserved fe English e Menu items Items 1 1s used for Adjustment for Electrical Device Items from 2 through to 5 are used for Inspections Items 6 is used for positioning to become Infinity of the focus encoder when FFD adjustment is made Item 7 is used for reading Lens Firmware Version Item 8 is used for Backup Restoring of FLASH ROM Data Item 9 is used for Writing of FLASH ROM Fixed Values Caution Whenever FLASH ROM fixed values are written Aberration compensation data writing adjustment is necessary A A5 AF S 24 70 2 9G INC JAA80251 R 3723 A Adjustment for electrical device e In case of replacing the main PCB and SWM unit GMR sensor or focus turning tube be sure to make adjustments e Select Adjustment for Electrical Device on the menu Follow the instructions on the screen for preparation Then click Next Auto adjustment for electrical device starts Stepi Set the lens position horizontally Stepz Set the foc
10. 100 0 100 0 100 0 100 0 Good 11 30 pulses oo oo oo oo oo oog 00d In case of 40 or less 21 30 pulses oo oo oo oo oo oox Good incase of oa 10 or less Zoom position j Delay time from 0 to 1000 0 msec Start insp M Lens tiltted inspection at 90 90deg angle The number of overrun underrun pulses must be within the standards after the lens back and forth driving 5 motion 1 1TIME S in D of the display Standard 40 or less for Df1 Df6 2 of the screen Lens position horizontal 11 30 pulse occurrence ratio Lens position others 11 30 pulse occurrence ratio 10 or less for Df1 Df6 3 of the screen Lens position horizontal 21 30 pulse occurrence ratio Lens position others 2 30 pulse occurrence ratio Lens position horizontal 31 pulses or more 4 of the screen Lens position others 3 pulses or more Only one occurrence is judged as defective X Dfl Df6 shows the lens driving amount A 51 AF S 24 70 2 89G 3 Inspection screen of lens driving time INC JAA80251 R 3723 A Make inspections by focal length 24mm W or 70m T at the following five lens positions Lens position in inspecting Horizontal lens position Index 90 angle rightward from horizontal position Index 90 angle leftward ditto Front lens group 90 angle upward ditto Front lens group 90 angle downward ditto Click Insp
11. FPC based on the reference hole and reference position Attach the focus encoder brush temporarily Reference hole Focus FPC SLALILOLR M M NE NE A ED D D Reference position db 96 Adhesive Screw lock A 15 AF S 24 70 2 8G INC JAA80251 R 3723 A Positioning of Focus encoder brush D Set the zoom to Middle position and turn the focus turning tube towards oo side Fig 1 2 Insert the oo infinity positioning tool X J11347 into the tool hole Fig 2 3 Position the focus encoder brush and tighten the screw 96 Fig 3 Fig 1 ooPositioning tool New tool J11347 ooPositioning tool HIEERR RN GRON X NOR bin HN IE 4 N commun Fig 2 Align A mark with the Positioning of Focus encoder brush rounded bottom part of the brush Focus encoder brush Fig 3 796 Adhesive Screw lock A 16 AF S 24 70 2 8G INC JAA80251 R 3723 A SWM coupling key As below fit B of the SWM with A of the SWM coupling key Attach the SWM coupling key to the focus turning tube with two screws 96 Focus turning tube SWM coupling key A a amp 96x2 Adhesive Lockend B A 17 AF S 24 70 2 8G INC JAA80251 R 3723 A Main PCB unit Attach the tape 196 to the main PCB Caution To prevent short circuit attach the tape so that the pins of the CPU do not touch the screw 196 n LE du s
12. JAA80251 R 3723 A 3 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 e Set the oscilloscope and turn the focus turning tube ref Page A16 with hand In case large waveform noise 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 us Is Oscilloscope setting V Div chl 100 mV V Div ch2 100 mV CHI Coupling AC Time Div Ims Trigger Mode NORMAL Trigger Coupling AC Trigger Source CH1 Trigger Position 4 div CH2 Trigger Type EDGE Trigger Level 0V INPUT chl AC INPUT ch2 AC Standard Amplitude of all pulses waveforms is 180mV or more Note Check the waveform by rotating the focus turning tube all the way around back and forth In case the amplitude is small adjust by loosening the two screws 119 and moving the GMR sensor Caution Do NOT touch the sensor area directly with hands during adjusting ie Ba me f _ x hay Sensor area I 119x2 A 23 AF S 24 70 2 8G INC JAA80251 R 3723 A lt Ret e As shown in Fig 1 if the amplitude of only either CH1 or CH2 is small one of the 2 screws 119 may be loosened so check for it If this is not the case the GMR se
13. be removed dip a wiping cloth Savina Minimax a little in ethanol and wipe the surface lightly Additional page A 34 1 AF S 24 70 2 8G January 10 2008 INC JAA80251 R 3723 A Aperture lever adjustment Set the zoom ring to TELE end Confirm that when the lock pin of J18004 1 is put in the lock hole of the bayonet the aperture becomes full open by the blades J18004 1 If the aperture blades are fully opened too quickly or slowly adjust the position of the aperture lever by two screws 113 1113x2 Aperture lever Adhesive Screw lock A 35 AF S 24 70 2 8G INC JAA80251 R 3723 A Set the zoom ring to TELE end Align the reference position for the zoom brush with the rounded part of the brush and tighten screw 96 Reference position for Zoom brush Cy Zoom brush eo 1 I I 0 4 Rounded part Zoom brush anomang amp 96 Adhesive Screw lock e Measure electrical continuity between the screw of zoom brush 96 and the bayonet GND with a tester Inspection standard 1 0 or less In case the result is more than 1 0Q clean the screw of the GND line or the connector Measuring point of continuity GND screw Screw of Zoom brush A 36 AF S 24 70 2 8G INC JAA80251 R 3723 A M A brush Attach the M A brush with the screw 100 By visual check confirm that the M A brush touches the pattern surface amp 100 Adh
14. i am c Attach the main PCB based on the reference position and stabilize with two screws 81 and two washers 74 Reference position 4 aha I 246 8 CBDSTERE 812 Adhesive Screw lock A 18 AF S 24 70 2 8G INC JAA80251 R 3723 A Connect the contact FPC and focus FPC to each connector Tuck the slackened portion of each FPC into the back of the main PCB Contact FPC Focus FPC Attach the lug plate with the screw 120 Put the lug plate with the soldered side facing outwards and attach it Solder Lead wire Lug plate BS 4120 e Connect the SWM relay FPC to the connector of the main PCB SWM relay FPC A 19 AF S 24 70 2 8G INC JAA80251 R 3723 A A Revision Based on the following reference position attach the tape 7 90 197 to the GMR base plate and peel off a backing paper of the tape 197 TA 0004 3x10 GMR base plate Reference position A Revision Based on the following reference position attach the tape 490 197 to the GMR base plate 197 GMR base plate TA 0004 3x10 Reference position Fit the bosses of the GMR base plate in the boss holes of the GMR sensor Tighten two screws 119 in numeric order from D to Bossx2 GMR base plate Boss holex2 GMR sensor Qe Oe 119x2 LA Changed page AX 2 A 20 AF S 24 70 2 8G January 10 2008 INC JAA80251 R 37
15. 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 D 1 AF S 24 T70 2 096 INC JAA80251 R 3723 A 1 Disassembly Remove the sheet Take out the two screws 63 and the screw 79 and remove the filter ring DX23s4AP 5 24 70 2 86 INC JAA80251 R 3 23 A lst lens G unit Take out the two screws 50 and the screw 61 and remove the Ist lens G unit Caution If the G1 lens is removed the lens alignment work will be necessary ee Ist lens group G1 lens G2 G3 lens 77 Adjustment washer A I D 3 AF S 24 70 2 8G INC JAA80251 R 3723 A e Remove the sheet 163 163 G4 lens 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 Rubber ring e Remove the zoom rubber ring e Remove the focus rubber ring Zoom rubber ring Bayonet side H Chd f s Rubber ring Zoom ring Cross section view of Focus ring Zoom ring Focus rubber ring D 4 AF S 24 10 2 8G INC JAA80251 R 3723 A Peel off the fou
16. key Key groove Ist lens G lead ring Ist lens G lead key Take out the two screws 191 each at three places and remove the three 1st lens G lead keys NEL Ist lens G lead keyx3 191x6 D 24 AF S 24 70 2 86 INC JAA80251 R 3723 A SWM brush e Remove the solders of the eight lead wires which are connected from the followings from the SWM relay FPC Red SWM brush Lead wire short Black M ring detection PCB Red SWM brush Yellow M ring detection Lead wire long PCB Black SWM brush Yellow SWM brush dA Lead wire long Lead wire short Yellow SWM brush Black SWM brush Lead wire short Lead wire long Take out the two screws 50 each at two places from the SWM brushes lead wires long and short SWM brush Lead wire long SWM brush Lead wire short amp 2 8 50x2 50x2 D20 AF S 24 7072 8G INC JAA80251 R 3723 A Caution In order to maintain optical accuracy the inner fixed tube 1C999 528 is set as assembled unit If disassembled therefore it will be unrepairable at repair service facilities Inner fixed tube 1C999 528 D 26 AF S 24 70 2 8G INC JAA80251 R 3723 A 2 Assembly Adjustment SWM relay FPC Attach the SWM relay FPC to the inner fixed tube based on the reference position Reference position for attachment A 1 AF S 24 70 2 8G INC JAA80251 R 3723 A SWM brush Att
17. 23 A Align the reference position of the back side of the GMR unit with the reference position of the inner fixed tube Then tighten the screw 73 Reference position for attachment Back side of GMR unit Inner fixed tube 1 gt Jj Reference position for attachment GMR unit E 73 Adhesive Screw lock Peel off a backing paper of the tape 197 and attach the GMR FPC Caution The GMR FPC must be attached without being too tight or too loose A 21 AF S 24 70 2 8G INC JAA80251 R 3723 A Inspection and Adjustment of GMR output waveform e When the GMR unit is disassembled and replaced be sure to make the inspection and adjustment 1 Device Single output rated voltage power supply l unit SV 100mA Oscilloscope unit e GMR output inspection tool l unit J11341 Caution If there is a problem with continuity between the contacts of the GMR output inspection tool J11341 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 Connect the fixed tube which has GMR unit assembled to each measuring instrument J11341 Rated voltage power supply b voltage Rated voltage power supply power supply scilloscope 2ch Oscilloscope 1ch J11341 Oscilloscope 2ch type A 22 AF S 24 70 2 8G INC
18. 4 70 inspection and adjustment software 718427 and perform oo infinity adjustment 2 Fix the aperture lever so that the aperture is full open 3 Set the zoom ring to WIDE and read the value 4 Calculate as follows B 0 6 0 05 C B Value at WIDE side C Adjustment amount mm of the infinity focus adjusting washer 78 5 Remove the bayonet mount 6 Increase decrease the washers 478 for adjusting the thickness by the difference from the standard value If the difference is plus increase the thickness of it while it is minus decrease the thickness of it Horizontal collimator A Revision Focal length f Standard mm 0 00 0 08 0 63 6 09 0 12 0 08 6 07 4 0 08 0 10 0 15 00702 Change page A xl A 42 AF S 24 70 2 86 Mar 31 2008 INC JAA80251 R 3723 A Preparation for Inspection amp Adjustment e In case of replacing the main PCB SWM unit GMR sensor or focus turning tube be sure to make the below inspection and adjustment 1 Adjustment e Adjustment for Electrical Device 2 Inspection Inspection of Lens switches and Lens condition Inspection of GMR encoder Operations Inspection of Lens Driving Stop Accuracy Inspection Lens Driving Time 3 Required device Single output rated voltage power supply 1 unit 6 0V 3 0A e Oscilloscope 1 unit Adjustment for electrical device Inspection of lens driving time AF
19. ASE ROM data into jus i ascia otepl Set the voltage of power supply for lens driving to b US DC otep Turn on the power supply for lens driving otep3 Push HESET button of the AF I communication tool J15306 1 When you are ready press Next gt gt button Click OK button Click Close button Backup and restoring of FLASH ROM data File File Name Ic Documents and Settings Administrator Read from Write into Read from Write into A b7 AF 5 24 170 2 9G Necessary adjustment when replacing parts Parts to be Adjustment for electrical device replaced Main PCB unit Focus turning tube unit 1 1 lens group unit 1 2 lens group unit 3rd lens group unit Ath lens group unit Ist lens G lead ring helicoid tube unit A 58 AF S 24 70 2 9G INC JAA80251 R 3723 A Lens alignment incl aberration compensation inspection Aberration compensation inspection INC JAA80251 R 3723 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 FLASH ROM 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 and or when each lens part is disassembled B
20. Caution Mount the exterior fixed tube so that it does NOT touch the main PCB and focus index sheet p Reference pin Exterior fixed tube Grease OS 30MF Apply to the overall bottom surface 24 set T Main PCB EE EA MF ring LI Focus index sheet A Hm p F Inner fixed tube Position the exterior fixed tube in the direction of the arrow and tighten the screw from D to A DIAM Reference pin amp Exterior fixed tube Direction for positioning MF ring backlash adjustment With the exterior fixed tube being assembled make the backlash adjustment of the MF ring n case of a large backlash or heavy rotation of the MF ring make the adjustment by using the washer 169 select from A to C ref Page A26 Changed Page AX 1 A 28 AF S 24 70 2 8G December 20 2007 INC JAA80251 R 3723 A Connect the zoom FPC to the connector of the main PCB Tuck the zoom FPC inwards as below i mM CS Zoom FPC Zoom ring Fit the cutout of the exterior fixed tube unit with the convex portion of the zoom ring then mount the zoom ring Convex portion Grease GN 20S Apply to the sliding surface Grease OS 30MF M Zoom ring Apply to the sliding Grease MZ 800SEL Grease OS 30MF Exterior fixed tube Cutout A 29 AF S 24 70 2 8G INC JAA80251 R 3723 A
21. Coupling DC Time Div 20m Sec Trigger Mode SGL S ae Trigger Coupling DC Trigger Source CHI Driving time X There are two types in shape of waveforms of E and H terminals Waveform 1 starts and goes up 2 starts and goes down 4 Inspection of Switches and Lens conditions e Select Inspection of Lens switches and Lens condition on the menu Follow the instructions on the screen for preparation Then click Next Monitoring Lens switches and Lens condition starts otepl Set the voltage of power supply for lens driving to 6 0VDC otep2 Turn on the power supply for lens driving steps Push HESET button of the AF I communication tool J15306 1 When you are ready press Mext button RTI Cancel e If Inspection result shows Good click Close button LIAS for AF S 24 7072 6G Monitor of Lens switches and Lens condition The display of current positions of lens switches MF and zoom rings in progress Focus encoder position Zoom encoder position 0 3 0 2 0 1 Electrical limit at infinity U 24mm 1 2 Focus mode E MA CM A b3 AF S 24 70 2 86 INC JAA80251 R 3723 A 5 Backup Restoring of FLASH ROM How to back up FLASH ROM data e Click Backup Restoring of EEP ROM Data button Click Read from Lens button Backup and restoring of FLASH ROM data File File Name e Read from FLASH ROM Data iz read from len
22. HPHT DEFOCUS Please input the amount of defocus by the side of 24mm 50 um Zoom pos 24mm Aberration measured value 4 AF 5 24 70 2 8G never 14 Design value 24mm 50 um Rewriting 50mm 10022m emm 100 2 ne JP EG Shot a 0 A 64 AF S 24 70 2 8G INC JAA80251 R 3723 A When the following screen appears click OK Address amp Compensation value ADDRESS DATACEven DATA Odd Oxda00 0x02 0x1D Oxdal 0x04 0x00 Oxdal4 0x00 0x05 0xda0g 0x00 0x04 0xda0 0x1C 0x02 Oxdalla 0x00 x04 xda c 0x00 0x00 Oxdalle 0x00 0x00 Oxdal0 0x00 0x00 Oxdal 0x00 0x00 7 The reconfirmation screen is displayed Click OK SERIO ROR ORR ROO OER May I rewrite adjustment value okokolcolololeloloolokololololololololololololololololok i The adjustment value was rewritten J Please turn OFF then ON the camera and restarts the software Click END twice to complete the adjustment software E Focus state monitor D200 Assessment area monitor quad t Outer area INPUT DEFOCUS rant an Please input the amount of defocus by the side of 24mm LensName select 50 4 m Zoom pos 24mm Aberration measured value NES qu FSZVEBHE ral ad nt Inner area AF S 24 70 28G LensVer 147 Design value a y 24mm 50 44m Rewriting AF S 24 70 28G 70mm 100 44m ot JudgementLevel Level Status ns Name Note Unless the camera is turned off
23. I communication box J15306 1 1 unit e AF I communication adapter J15307 1 unit AF S 24 70 inspection and adjustment program J18426 The below hardware requirements are necessary for installing the program on a computer Ensure them before installation IBM PC AT compatible Windows XP Home Edition Windows XP Professional Windows 2000 HD Pentium Ill 266MHz Pentium IV 2GHz HD 6MB or more free space is necessary when installation sowie X USB interface cannot be used As long as the above requirements are met either desktop or notebook PC is available A 43 AP S 24 70 2 89G INC JAA80251 R 3723 A System configuration New tool Constant voltage power supply Set voltage 6V Oscilloscope If the RS232C terminal of PC is a 9 pin type connect it by using the 25 pin 9 pin conversion Jb commie onbor connector This connector is NOT supplied as RJ J15306 1 so use commercial products on the market AF I communication adapter J15307 To RS232C terminal a PC AF 824 70G As long as PC is IBM PC AT compatible Caution Keep the lens in horizontal any CPU type is available is i position during adjustment AF S 24 70 inspection and adjustment software J18427 A 44 AF S 24 70 2 8G JAA80251 R 3 23 A Q AF S 24 70 inspection program 1 Menu screen Main menu ei J18427 l 0 E Lens Firmware Version
24. INC JAA80251 R 3723 A VF BOK RSF Bin zr BT HI en 4 H H AF S Zoom Nikkor ED 24 70mm F2 8G IF JAASO291 REPAIR MANUAL NIKON CORPORATION Nikon Tokyo Japan Copyright 2007 by Nikon Corporation All Rights Reserved Tene a AT Printed in Japan November 2007 INC JAA80251 R 3723 A X Before Disassembly Reassembly Adjustment 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 fixed 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 e 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 Ist lens G lead ring helicoid tube unit Points to notice for Lead free solder products Lead free solder
25. OSITIONING PIN FOR AF S 24 70 2 8G Two pins required A GQG Jn Addition AF S 24 70 2 8G A JI KEY 4G LENS GUIDE PIN FOR AF S 24 70 2 8G Two pins required A 3670 Addition TAREE 8677 IRA n7 RJNo is not LEAD FREE SOLDERING IRON available MS mL YY AX T1 AF S 24 70 2 86 March 10 2008 INC JAA80251 R 3723 A NEW TOOL A Wi NAME OF TOOL OTHERS 17 Y 3 amp IX 7 72 RMA02 M705 0 5MMX500G ECO SOLDER RMA02 M705 0 5MMX500G ait dee LH Tv F LENS ALIGNMENT CHART FA HkEa v JI9128 Hl LIGHT VIEWER 719128 a bdEEATY4RFv v LENZ ALIGNMENT EQUIP SLIDE RAIL AF S 24 70G Aww 4 ATTACHMENT FOR HOLDER AF S 24 70G AVA DL 1 040 OSCILLOSCOP DL 1640 FY A EM 60L GREASE EM 60L ZU A GN 20S SQH GREASE GN 20S SQ Hy a trigai 5 LOCTITE 241 50ml RRRA NKS 211SP POINT OF CONTACT LUBRICANT NKS 211SP AFVY ARTZ A 1 40 GREASE FOR AF LENS EDB0011 RY nu Z7 FR 1401C SCREW LOCK 1401C OS 30MEL H243 7 OS 30MEL DRY SERF OS 30MEL OIL BARRIER T 24 AF S 24 70 2 096 RIBS AN RJ No NAME OF TOOL MZ 800SEL F24wW 7 MZ 800SEL DRY SURF MZ 800SEL GP 1RS FY A GP 1RS GREASE GP 1RS M3008 FFF Pav yIA SAVINA MINI MAX GMR H7J MRR GMR output inspection tool T S sADp 5 24 70 2 8G INC JAA80251 R 3 23 A NEW TOOL Wi OTHERS FOR AF S 18 135 FOR AF S 18 135
26. Set the cam tube to WIDE end Put the zoom coupling key in the zoom key groove and tighten two screws 67 in numeric order from D to To Zoom key groove DAD 7o Zoom key groove Rear fixed tube Tighten five screws 174 in numeric order from D to 174x5 e Li WO asserens Caution Do NOT apply the adhesive here Grease GN 208 Grease OS 30MF Apply to the sliding surface N Changed Page overall revision A 30 AF S 24 10 2 8G December 15 2007 INC JAA80251 R 3723 A 3rd lens group e Assemble the 3rd lens group with J11346 _ 28 SS Be ASS Washer oT Select from A to J 3rd lens group J11346 A 31 AF S 24 70 2 8G INC JAA80251 R 3723 A A Deletion Changed page AX 1 A 32 AF S 24 70 2 8G January 10 2008 INC JAA80251 R 3723 A Bayonet mount unit siie 113x2 Bayonet mount Mount rubber C ring Disk lever Bayonet mount Body side 175 118 Spring hooking plate Apply to the sliding surface Spring i Mount rubber Direction of attaching Mount rubber Put the Bf adjustment washer 78 Put the bayonet mount Caution Handle the blade actuating plate spring with care because it is easily deformed Position the bayonet mount unit in the direction of the arrow and tighten four screws 72 A Addition 172x4 7 Apply to the scre
27. ach the SWM brushes lead wires long and short to the inner fixed tube and tighten two screws 50 each at two places Inner fixed tube Poort I ee 4 SWM brush SWM brush Lead wire long Lead wire short 50x2 50x2 e Solder the eight lead wires on the SWM relay FPC Red SWM brush Lead wire short Black M ring detection PCB Red SWM brush Yellow M ring detection Lead wire long PCB Yellow SWM brush Black SWM brush Lead wire long Lead wire short Yellow SWM brush Black SWM brush Lead wire short Lead wire long A 2 AF S 24 10 2 8G INC JAA80251 R 3723 A Selection and Temporary attachment of Ist lens G lead key e Select the 1st lens G lead key from A to C based on the groove width of the Ist lens G lead key Attach temporarily the three Ist lens G lead keys to the inner fixed tube with two screws 191 each at three places with the each 1st lens G lead key being movable Inner fixed tube Ist lens G lead keyx3 Standard A 191x6 Temporary assembly of Ist lens G lead ring e Align the three Ist lens G lead keys with the appropriate three grooves for the 1st lens G lead key then assemble the inner fixed tube and the Ist lens G lead ring Inner fixed tube Oil barrier OS 30MEL Ist lens G lead key Groove for Ist lens G lead key Ist lens G lead ring Ist lens G lead ring Apply to the Cam groove and the lead key groove
28. ction of the arrow Attach 196 so that part of it protrudes from the edge of the GMR base plate by 1mm as below Then push 196 from above with the fingers Caution The tape 196 must NOT touch the below A area of the FPC 1 La mm protrusion from the edge of the i gt f 71 Pc GMR base plate B GMR base plate Adhesive Screw lock t Tape 196 TA 0017 3x8 A 2b AF S 24 70 2 8G INC JAA80251 R 3723 A e Mount the MF ring and washer 169 on the SWM unit 169 Select from A to C Standard B Caution Put with rounded surface facing downwards MF ring Grease GN 20S Apply to sliding surface Grease OS 30MEL Apply to the overall sliding surface A 26 AF S 24 70 2 8G INC JAA80251 R 3723 A Zoom FPC Attach the zoom FPC to the exterior fixed tube based on the reference position Name plate Grease NKS 211SP EE Focus window Pattern face Reference position of attachment Lead wire black Lead wire blue Bend the zoom FPC slightly inwards at A area Push the lead wire inwards as below PE ed 4 _ 4 i n A 27 AF S 24 70 2 8G INC JAA80251 R 3723 A Exterior fixed tube Set the MF ring to the close end Fit the reference pin of the exterior fixed tube in the reference pinhole of the inner fixed tube and mount on the inner fixed tube
29. e sure to make this adjustment after completing inspecting and adjusting the main PCB 1 Preparation Test chart Self made tool ref Procedure for how to create it Tripod Camera D100 or D200 Personal computer USB cable UC E4 Adjustment software LWM exe used for the lens optical alignment 2 Procedure for how to create Test chart Photocopy the next page and cut out 1 target chart and 5 resolution charts Target chart Resolution chart As shown below put each chart in position at the specified spacings Note Only in the center put the target chart on the central resolution chart ND ap 300mm A 59 AF S 24 70 2 8G INC JAA80251 R 3723 A Target chart Resolution chart A 60 AF S 24 70 2 8G INC JAA80251 R 3723 A 3 Writing aberration compensation data D Prepare a camera Set the Exposure mode to A the aperture to Full 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 to 200 2 Set up the camera in which the lens to be inspected is fit on the tripod Then set the focal length of the lens to 70mm and also set the distance between the test chart and camera CCD face to 2m 10cm 2 cm CCD face position Test chart 2m 10 cm 2cm immm 3 As shown below fit the target chart with the center of the focus area in viewfinde
30. ection of Lens Driving Time on the menu Follow the instructions on the screen for preparation Then click Next Inspection of lens driving time starts otepl Set the lens position horizontally or tilt it at 90 90deg angle otep 2 Set the focus mode selector to M A steps Set the voltage of power supply for lens driving to 5 5y DC otep4 Turn on the power supply for lens driving otepb Push RHESET button of the AF communication tool 11 5305 1 When you are ready press Next button Cancel Select the driving amount respectively Each lens driving time must be within the standard Caution If the MF ring is rotated during inspections the waveform shows an abnormal value Do NOT touch the MF ring during inspections LIAS for AF S 24 70 2 8G Inspection of Lens Driving Time The time taken for servo motor driving from Dfl to Dfb is measured by oscilloscope Drive amount Df Df Df3 Df4 Df3 Df foom position iv Standard Jgmsec or less fUmsec or less msec or less 1 lmsec or less 145msec or less l amp 8msec or less D standard 90 9deg 6 msec or less B4msec or less 4msec or less Admsec or less fd4msec or less UBmsec or less Drive Df Drive Dts Drive Df4 Drive Dfa riving to close end Drive Df ring to inf end Close A 52 AP S 24 10 2 96G INC JAA80251 R 3723 A eOscilloscope setting V Div 5V E terminal
31. esive Screw lock Cover the opening areas of D and by attaching the two cover plates 194 with two pieces of the tape 193 for each D Zoom brush 2 M A brush A 37 AF S 24 70 2 8G INC JAA80251 R 3723 A Rubber ring Attach the focus rubber ring Attach the zoom rubber ring Zoom rubber ring Be careful of assembling direction Bayonet side z Ms Rubber ring Zoom ring Cross section view of Focus ring Zoom ring Focus rubber ring Attach the sheet 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 A 38 AF S 24 70 2 8G INC JAA80251 R 3723 A Ist lens G unit Mount the Ist lens group and tighten the two screws 50 and the screw 61 in numeric order from Q to 3 Caution If G1 lens is removed the lens alignment work will be necessary Positioning of Gl lens J11348 77 Adjustment washer A I Oil barrier OS 30MEL Apply to the overall rim mMm ILL A 39 AF S 24 70 2 8G INC JAA80251 R 3723 A e Mount the filter ring and tighten the two screws 63 and the screw 79 in numeric order from D to 3 Attach the sheet Sheet 79 Shoulder screw Gg oce O o Fil
32. h 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 DU8sAD 5 24 7072 86 INC JAA80251 R 3723 A 3rd lens group e Remove the 3rd lens group with J11346 J11346 D 9 AF S 24 70 2 86 INC JAA80251 R 3723 A Rear fixed tube Take out the five screws 174 and remove the rear fixed tube Lf L 174x5 3 v IE Rear fixed tube Set the cam tube to WIDE end Take out the two screws 67 and remove the zoom coupling key D 10 AP S 24 7072 86 INC JAA80251 R 3723 A Zoom ring Align the cutout section of the exterior fixed tube with the convex portion of the zoom ring Then detach the zoom ring Convex portion Zoom ring Exterior fixed tube Cutout section A Revision Disconnect the foeus zoom FPC from the connector of the main PCB VUL Rc LU iE s a ah 4 XTH 3H2H FoeusZoom FPC A Revision Changed Page AX 2 D 11 AF S 24 70 2 8G December 15 2007 INC JAA80251 R 3723 A Exterior fixed tube e Take out the four screws 174 of the exterior fixed tube Lf Y 174x4 e Remove the exterior fixed tube Caution When the exterior fixed tube is removed be careful not to touch the main PCB and the focus index sheet
33. her 160 by pushing upwards Fig 1 e Remove the washers 156 and 161 Convex portion of Washer As a result of adjustments 156 is not used in some cases 161 Inner fixed tube Grooved guide track W Protection tape lt Ne ie H m 2 x COR _ 9 s pal Procedure for removing washer Concave portion of Inner fixed tube U La Convex portion of Washer Fig 1 D20 lt AF 5 24 70 2 8G INC JAA80251 R 3723 A Remove the three rollers of the SWM unit Remove the SWM unit from the inner fixed tube Roller x3 Adhesive Lockend B Be careful of the facing direction of 159 when assembled SWM unit Inner fixed tube D21 lt AF S 24 7072 86 INC JAA80251 R 3 23 A Hood fixed ring Take out the three screws 174 Hood fixed ring 174x3 Set the zoom to WIDE end position and remove the hood fixed ring from the inner fixed tube Hood fixed ring Inner fixed tube 122 AP S 24 70 72 86 INC JAA80251 R 3723 A Ist lens G lead ring Peel off the three pieces of tape 107 107x3 e Remove the three rollers gt Roller x3 D23 AF S 24 10 2 86 INC JAA80251 R 3723 A Ist lens G lead ring continued Detach the Ist lens G lead ring by disengaging the three 1st lens G lead keys from the key grooves Ist lens G lead
34. nsor may malfunction so replace it and make a readjustment CHi3100mV CH2 100mV 500 u div AC 10 1 i AC 30 1 3 CHI 1 1 al 1 1 e 1 _ 1 1 e 1 alx 1 e 1 wle 1 _ 1 _ 1 a 1 alk 1 _ 1 e 1 1 _ 1 e 1 al 1 FEE I EF FE Ff E EPERR E ERPEERFE E CH2 t b k F b f F etek bef h Fig 1 As shown in Fig 2 if the amplitude partially drops during the rotation the magnetic data of the tape of the focus turning tube unit may be damaged So replace the focus turning tube unit and make a readjustment CH1 100mV CH2 100mV 500 4 div AC 00 1 AC dO CHI H EEHEPI EEERREPREPEP REPRE EE ER I EE FS S e 1 i 1 1 e 1 al 1 1 e 1 1 CH2 A 24 AF S 24 70 2 8G INC JAA80251 R 3723 A Based on the reference position fix the GMR FPC with the tape 196 Attach 196 so that its upper part protrudes from the edge of the GMR base plate by 1mm as below Then push 7196 from above with the fingers Caution Do NOT attach 196 at the closer position to the GMR sensor than 197 l mm protrusion from the edge of the GMR base plate Tape 197 Tape 196 TA 0017 3x8 Connect the GMR FPCs to the connectors of the main PCB Connect the GMR FPCs to the connector and lock them IN i 3113111110 522222332310 4466666666466 Position the GMR FPC towards the dire
35. once the value that was written in FLASH ROM is not reflected A Go AP S 24 70 2 86 INC JAA80251 R 3723 A Check whether an object is in focus by actually taking pictures If it is out of focus make the readjustment If this phenomenon does not improve even after repeating the procedure some abnormal value may have been written in the FLASH ROM In this case therefore click Design value Rewriting and input the initial value and then make the adjustment INPUT DEFOCUS Please input the amount of defocus by the side of 24mm m 2m Aberration measured value 4 mess In AF S 24 70 2 8G Lens Ver 147 Design value 24mm D 4m Rewriting H mm 1 T mm A 66 AF S 24 70 2 8G INC JAA80251 R 3723 A TB ita TOOLS NEW TOOL RJ i A5 T Wi NAME OF TOOL OTHERS Re AY A ER AT 500H BACK FOCUS COLLIMATER LEE LAJ Mii PEC ARYA S A ae J9001 5N 1 DC REGULATED POWER SUPPLY 5A AF Iilfgh ZA AF I LENS COMMUNICATION BOX CE AF 1 EUR 777 7 COMMUNICATION ADAPTER FOR AF I J1 8004H HR TF YVY STANDARD GAUGE FOR J18004 J18427 AF S 24 70 mm WERT I ADJ FD FOR AF S 24 70 IBM 3 5 J18438 AFS 24 70 gape ke HYZ LWM ADJ FD LWM FOR 24 70 ALIGNMENT J11346 AF S 24 70 2 8G 3 EERS WRENCH FOR 3G AF S 24 70 2 8G AF S 24 70 2 8G amp amp Ar qdEH L C 7 INFINITY POSITIONING PIN FOR AF S 24 70 2 8G AF S 24 70 2 8G G1 MERD EL G1 P
36. r Target chart Resolution chart In viewfinder 4 Connect the PC and camera via USB cable Camera setting Mass storage 5 Start the adjustment software LWM exe A 61 AF S 24 70 2 8G INC JAA80251 R 3723 A A Revision Confirm that AF S 4 24 70 2 8G is selected on Lens select screen Click OK Lens select select Lens AF S 24 7O 28G Meri 47 Target Lens list Cancel AF S 24 70 2 0G Werldn Please select lens Judgment Level History Click the Defocus rectify am Focus state monitor D2UI Assessment area monitor quad rant Gutter area do 2 NN quad cant Inner area Status r t Lens Name AF S 24 70 2 8G 1 2 4 JudgementLevel Levell 62 SABRSS 24 70 2206 Changed Page AX 1 December 10 2007 INC JAA80251 R 3723 A Click the JPEG Shot INPUT DEFOCUS Please input the amount of defocus by the side of mm p 44 m Aberration measured value AF S 24 70 2 8G Lenz Ver 147 Design value 24mm Rewriting B mm mm Om JPEG Shot 9 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 100u m 100p m Input the value of the focused position into the entry field e g Focus position is 100um to
37. r pieces of the tape 193 of D and remove the two cover plates 194 D Zoom brush 2 M A brush Do AAFS 24 7072 86 INC JAA80251 R 3723 A 5th lens Group Take out the three screws 182 of the 5th lens group e Take out the two screws 180 of the contacts unit Caution For 7182 a thicker screw 1K010 343 may be used to fit with the larger screw hole caused by adjustments So check the screw diameter 182 has M1 4 diameter while 1K 010 343 has M1 7 diameter P a gt 5th lens group p 1823 Thicker screws may be used if 4180x2 Take out the screw 96 and remove the zoom brush Zoom brush 96 M A brush Take out the screw 100 and remove the M A brush M A brush amp 100 D 6 AF S 24 70 2 8G INC JAA80251 R 3723 A e 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 uma 78 Blade actuating plate spring D YsAP S 24 7072 86 INC JAA80251 R 3723 A Ath lens group e Remove the 4th lens group Caution Removing the 4th lens group needs the lens alignment work e V 481 3 4th lens group Washer Washer Washer with being light shielding tape attached The hybrid aspheric lens is used for the bayonet side of the 4t
38. s otepl Set the voltage of power supply for lens driving to b US DC otep 2 Turn on the power supply for lens driving otep3 Push RESET button of the AF I communication tool J15306 1 When you are ready press Next gt gt button Read from Write into A 54 AF S 24 70 2 8G INC JAA80251 R 3723 A Type the file name in any folder and click Save button e g File name C 20070524 Save art pe text tst File name Click OK button Click Close button to end Backup and restoring of FLASH ROM data File File Name Read from Read from Write into A bb AP S 24 70 2 9G INC JAA80251 R 3723 A How to Restore FLASH ROM data e Click Backup Restoring of FLASH ROM Data button Click Read from File button Backup and restoring of FLASH ROM data Write into HE eg EXE20070524 txt File name 20070524 t Files of type fetu When reading FLASH ROM data is completed click OK button e Click Write into Lens button Backup and restoring of FLASH ROM data File File Name C Documents and Settings Administrator Read from Write into Read from A 56 AF S 24 70 2 8G INC JAA80251 R 3723 A Follow the instructions on the screen for preparation Then click Next Writing PE
39. s does not stop during the inspection of LENS DRIVING STOP ACCURACY any value can be input without problem However the larger the value of ADJUST DELAY TIME gets the longer the inspection time becomes LIAS for AF S 24 7072 8G Inspection of Lens Driving Stop Accuracy Driving from Df1 to Dfb is repeated automatically and servo motor driving stop accuracy Is measured Lens back and forth count 075 Lens driving count O Df 1 Df2 Df3 Df4 Df5 DfB Overrun Underrun pulse number 0 max value 0 Overrun Underrun error rate Error range Df Lite Lita Lit Lita Lita standard U U pulses o o oo 00 00 00 0 0 Good 0 0 pulees oo oo 0 0 oox 0 0 oo Goodin case of 40 or less 0 0 pulses oos 0 0 oos 0 0 oox oox ood incase of 10 or less foom position Delay time from D to wi 0 m3 d ns tilted inspection at 90 90deg angle Tick here except when the lens is positioned horizontally A 50 AF S 24 70 2 8G INC JAA80251 R 3723 A When the inspection ends the result will be indicated If Inspection result shows Good click Close button LIAS for AF S 24 70 2 8G Inspection of Lens Driving Stop Accuracy Inspection result Good D Lens back and forth count 575 Lens driving count 1863 32 32 31 30 26 22 4 Overrun Underrun pulse number max value 2 Overrun Underrun error rate Error range Df Lite Uta Lit Lita Lita standard 0 10 pulses 100 0 100 0
40. ter ring This hole diameter is larger than the other two A 40 AF S 24 70 2 8G INC JAA80251 R 3723 A 5th lens group Position the 5th lens group in the direction of the arrow and tighten three screws 182 Attach the contacts unit with two screws 180 If the screwhole for 182 got larger use the thicker screw 1K 010 343 instead 182 has M1 4 diameter while 1010 343 has M1 7 diameter Direction for positioning 5th lens group G 7182x3 31182 180 i 1380x2 A 41 AF S 24 70 2 8G INC JAA80251 R 3723 A Adjustment of Focus movement T W ref Page A39 D Select 6 Infinity positioning for FFD adjustment of AF S24 70 inspection and adjustment software J18427 and perform oo infinity adjustment 2 Fix the aperture lever so that the aperture is full open 3 Read each value of WIDE or TELE sides 4 Calculate as follows A B 3 0 02 C A Value at TELE side B Value at WIDE side C Adjustment amount mm of the washer 77 of the Ist lens group 5 Increase decrease the washers 77 for adjusting the thickness by the above C value If C is plus increase the thickness of it while it is minus decrease the thickness of it Note When the washer 77 is put place a thin washer between thick washers Adjustment of F F D Infinity focus ref Page A33 D Select 6 Infinity positioning for FFD adjustment of AF S2
41. us mode selector to M A otep3 Set the voltage of power supply for lens driving to b DV DC step4 Turn on the power supply for lens driving Steph Push HESET button of the AF communication tool J15306 1 When you are ready press Next gt gt button b Cancel Click NEXT button LIAS for AF S 24 70 2 8G Adjustment for Electrical Device 1 of 2 Adjustment for duty of GMR encoder starts When you are ready press Next gt gt button Cancel Click NEXT button LIAS for AF S 24 70 2 8G Adjustment for Electrical Device 2 of 2 Adjustment for SWM offset gamma compensation values starts When you are ready press Next gt gt button LIAS for AF S 24 70 2 8G Adjustment for Electrical Device 2 of 2 Auto adjustment for electrical device is completed A 46 AF S 24 70 2 8G INC JAA80251 R 3723 A CHid5V i CH2 5V 5ms iv e Oscilloscope setting DC 10 1 DC 10 1 ES 7 NORM 2C0KE V Div CH1 5V E V Div CH2 5V d Coupling DC Time Div Im Sec i 3 Trigger Mode NORMAL Xs ver Reh EERE EEEF EEI Trigger Coupling DC Trigger Source CH1 Trigger Position 4div 3 Trigger Type EDGE Trigger Level 25V A 4T AF S 24 70 2 8G INC JAA80251 R 3723 A Inspection of Lens operations Check the lens operations by using a PC after assembling O Check on PC Inspection item 1 GMR encoder operations
42. w x3 3 Direction for positioning p ue E gt Bayonet mount unit Put the disk lever between the blade actuating plate spring and blade actuating plate 78 A Revision Blade actuating Blade actuating plate plate spring Changed page A x 2 A 33 AF S 24 70 2 8G March 14 2008 INC JAA80251 R 3723 A Limit plate adjustment Set the zoom ring to TELE end Press the aperture lever all the way towards the direction for full aperture so that the aperture becomes full open by the blades Aperture lever If the aperture does not get full open by the blades or the aperture blades are fully opened too quickly remove the bayonet and adjust the position of the limit plate by two screws 81 812 Adhesive Screw lock A 34 AF S 24 70 2 8G INC JAA80251 R 3723 A 4th lens group Set the zoom to WIDE end position By using two pins J11349 as guide insert them and put the washer and mount the 4th lens group Fig 1 Caution Removing the 4th lens group needs the lens alignment work v 813 Ath lens group Washer 0 1mm Washer Select from A to I Washer with being light shielding tape attached J11349 Insert X J11349 into guide holes Fig 1 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
43. ward the front focus side INPUT DEFOC US Please input the amount of defocus by the side of mm 100 am Aberration measured value AF S 24 70 28G Lens Ver 147 Design value 24mm Rewriting H mm 7Omm 100 4 m JPEG Shot AGIA AF S 24 70 2 86 INC JAA80251 R 3723 A D Set the focal length of the lens to be inspected to 50 mm and also set the distance between the test chart and camera CCD face to Im 50cm 2cm Caution Confirm that the aperture is fully open 2 Perform the operations from 8 to on the previous page INPUT DEFOCUS Please input the amount of defocus by the side of 5Omm 1 B um Zoom pos 50mm Aberration measured value 4 AF S 24 70 2 8 Leng Ver 147 Design value 24mm Rewriting mm 100 2 m mm 100 Hm Aeta 3 Set the focal length of the lens to be inspected to 24mm and also set the distance between the test chart and camera CCD face to 72cm 2cm Caution Confirm that the aperture is fully open Perform the operations from 8 to on the previous page IHPHT DEFOCUS Please input the amount of defocus by the side of 24mm 50 um Zoom pos 24mm Aberration measured value 4 Penri AF 5 24 70 286 i Lenz Ver 147 Dezign value 24mm 50 um Rewriting B mm 100 4 rm 7Omm 100 4 m JPEG Shot 5 Confirm that all the values of focal lengths are indicated in a red dotted circle and click Rewriting I
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