Nikon AF-S Zoom-Nikkor ED 24-70mm/F2.8G (IF) Repair Manual Download Page 52

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JAA80251-R.3723.A

- Ａ 2・AF-S 24-70/2.8G -

GMR unit

Connect the GMR-FPCs to the connectors of the main PCB.

�

Connect the GMR-FPCs to the
connector, and lock them.

Lock

Adhesive: Screw lock

GMR base plate

Tape#197

Tape#196
TA-0017(3×8)

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 [#196] from above with the fingers.

�

Caution: Do NOT attach [#196] at the closer position to the GMR sensor than [#197].

1-mm protrusion from the edge
of the GMR base plate.

Position the GMR-FPC towards the direction 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.

�

1-mm protrusion from the edge of the
GMR base plate.

Caution: The tape [#196] must NOT touch the below

area of the FPC.

INC

Summary of Contents for AF-S Zoom-Nikkor ED 24-70mm/F2.8G (IF)

Page 1: ...作成承認印配布許可印 JAA80251 R 3723 A JAA80251 Copyright ｃ 2007 by Nikon Corporation All Rights Reserved 無断転載を禁ず Printed in Japan November 2007 AF S Zoom Nikkor ED 24 70mm F2 8G IF REPAIR MANUAL Ｍサービス計画課 INC ...

Page 2: ... 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 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 1st lens G lead ...

Page 3: ...JAA80251 R 3723 A Ｄ AF S 24 70 2 8G 1 Disassembly Filter ring Remove the sheet Take out the two screws 63 and the screw 79 and remove the filter ring Sheet Filter ring 63 2 79 Shoulder screw INC ...

Page 4: ...it Take out the two screws 50 and the screw 61 and remove the 1st lens G unit G1 lens 50 2 61 Countersunk screw G2 G3 lens 1st lens group Caution If the G1 lens is removed the lens alignment work will be necessary 76 77 Adjustment washer A I 72 3 INC ...

Page 5: ...s section view of Focus ring Zoom ring Focus rubber ring Zoom rubber ring Sheet Remove the sheet 163 163 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 G4 lens INC ...

Page 6: ...JAA80251 R 3723 A Ｄ AF S 24 70 2 8G Tape Peel off the four pieces of the tape 193 of and remove the two cover plates 194 Zoom brush M A brush 194 193 INC ...

Page 7: ...ew 96 and remove the zoom brush Zoom brush M A brush Take out the screw 100 and remove the M A brush 5th lens group M A brush 100 182 3 Caution For 182 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 1K010 343 has M1 7 diameter 5th lens Group Thicker screws may be used INC ...

Page 8: ...ting plate spring 172 4 Bayonet mount unit 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 Bayonet mount unit INC ...

Page 9: ...group needs the lens alignment work with being light shielding tape attached 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 be removed dip a wiping cloth Savina Minimax a little in ethanol and wipe the surface lightly INC ...

Page 10: ...JAA80251 R 3723 A Ｄ AF S 24 70 2 8G 3rd lens group Remove the 3rd lens group with J11346 J11346 3rd lens group Washer INC ...

Page 11: ... S 24 70 2 8G Set the cam tube to WIDE end Take out the two screws 67 and remove the zoom coupling key Rear fixed tube Take out the five screws 174 and remove the rear fixed tube 67 2 Zoom coupling key 174 5 Rear fixed tube INC ...

Page 12: ...ocus zoom FPC from the connector of the main PCB FocusZoom FPC Zoom ring Align the cutout section of the exterior fixed tube with the convex portion of the zoom ring Then detach the zoom ring Zoom ring Exterior fixed tube Revision Changed Page 2 December 15 2007 Ｍサービス計画課 Revision INC ...

Page 13: ...be Remove the exterior fixed tube Take out the four screws 174 of the exterior fixed tube Main PCB Focus index sheet Exterior fixed tube 174 4 Caution When the exterior fixed tube is removed be careful not to touch the main PCB and the focus index sheet INC ...

Page 14: ...JAA80251 R 3723 A Ｄ 13 AF S 24 70 2 8G MF ring Detach the MF ring and washer 169 from the SWM unit MF ring SWM unit 169 INC ...

Page 15: ...e 196 Disconnect the GMR FPC from the connector of the main PCB 196 Slide the connector in the direction of the arrow and remove the FPC Take out the screw 73 and remove the GMR unit 73 GMR unit Caution NEVER touch the sensor area directly by hand Back Main PCB INC ...

Page 16: ...nd two washers 74 and remove the main PCB unit 81 2 74 2 Take out the screw 120 120 Remove the contact FPC from the main PCB Remove the focus FPC from the main PCB Remove the SWM relay FPC from the main PCB SWM relay FPC Main PCB unit Contact FPC Focus FPC Main PCB INC ...

Page 17: ...rews 96 and remove the SWM coupling key Focus coupling key 96 2 Focus coupling key Take out the two screws 96 and remove the focus coupling key Focus encoder brush Take out the screw 96 and remove the focus encoder brush Focus encoder brush 96 Changed page 1 January 10 2008 Ｍサービス計画課 Deletion INC ...

Page 18: ... Attach the protection tape to the SWM relay FPC Do NOT attach the FPC contacts area Fig 1 Fig 2 Fig 3 Roller 158 157 Focus fixed tube Remove the rollers from the focus fixed tube by following the order from Fig 1 to Fig 3 SWM relay FPC Protection tape INC ...

Page 19: ...F S 24 70 2 8G Remove the focus fixed tube from the inner fixed tube Focus fixed tube Inner fixed tube Be careful so that fingers or a screwdriver do NOT touch the magnetic surface Magnetic tape Focus fixed tube continued INC ...

Page 20: ... AF S 24 70 2 8G Focus coupling key Set the zoom to TELE end position and disengage the focus coupling key from the focus coupling pin Focus coupling pin Focus coupling key Zoom TELE end position Lens front infinity end INC ...

Page 21: ...n of the inner fixed tube and turn the washer rightwards Fig 1 Align the convex portion of the washer with the grooved guide track indicated by white dot lines then remove the washer 160 by pushing upwards Fig 1 Remove the washers 156 and 161 Convex portion of Washer Procedure for removing washer Concave portion of Inner fixed tube Convex portion of Washer Grooved guide track Fig 1 156 As a result...

Page 22: ...24 70 2 8G SWM unit Remove the three rollers of the SWM unit Remove the SWM unit from the inner fixed tube Inner fixed tube SWM unit Roller 3 Adhesive Lockend B 158 159 Be careful of the facing direction of 159 when assembled INC ...

Page 23: ...A Ｄ 22 AF S 24 70 2 8G Hood fixed ring Set the zoom to WIDE end position and remove the hood fixed ring from the inner fixed tube Inner fixed tube Hood fixed ring Hood fixed ring 174 3 Take out the three screws 174 INC ...

Page 24: ...JAA80251 R 3723 A Ｄ 23 AF S 24 70 2 8G Peel off the three pieces of tape 107 107 3 1st lens G lead ring Remove the three rollers Roller 3 80 87 INC ...

Page 25: ...s 191 each at three places and remove the three 1st lens G lead keys Detach the 1st lens G lead ring by disengaging the three 1st lens G lead keys from the key grooves 1st lens G lead ring 191 6 1st lens G lead key 3 1st lens G lead key Key groove 1st lens G lead ring continued INC ...

Page 26: ... brush Lead wire long 50 2 Black M ring detection PCB Yellow M ring detection PCB Yellow SWM brush Lead wire long Yellow SWM brush Lead wire short Red SWM brush Lead wire short Red SWM brush Lead wire long Black SWM brush Lead wire short Black SWM brush Lead wire long Remove the solders of the eight lead wires which are connected from the followings from the SWM relay FPC INC ...

Page 27: ...F S 24 70 2 8G 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 INC ...

Page 28: ... 3723 A Ａ AF S 24 70 2 8G Attach the SWM relay FPC to the inner fixed tube based on the reference position Inner fixed tube SWM relay FPC Reference position for attachment 2 Assembly Adjustment SWM relay FPC INC ...

Page 29: ... the eight lead wires on the SWM relay FPC Adhesive Screw lock Adhesive Screw lock SWM brush Black M ring detection PCB Yellow M ring detection PCB Yellow SWM brush Lead wire long Yellow SWM brush Lead wire short Red SWM brush Lead wire short Red SWM brush Lead wire long Black SWM brush Lead wire short Black SWM brush Lead wire long SWM brush Lead wire short SWM brush Lead wire long INC ...

Page 30: ...with the each 1st lens G lead key being movable Inner fixed tube Temporary assembly of 1st lens G lead ring Align the three 1st lens G lead keys with the appropriate three grooves for the 1st lens G lead key then assemble the inner fixed tube and the 1st lens G lead ring Inner fixed tube 1st lens G lead ring Grease GN 20S Apply to the Cam groove and the lead key groove 191 6 1st lens G lead key 3 ...

Page 31: ...nt of 1st lens G lead key As below position the 1st lens G lead key and the 1st lens G lead ring 191 3 Lower screw for attaching the 1st lens G lead key Tighten three screws 191 in numeric order from to Adhesive Lockend B 1st lens G lead ring 1st lens G lead key INC ...

Page 32: ...screws 191 in numeric order from to As below position the 1st lens G lead key and the 1st lens G lead ring along the white dot line 1st lens G lead ring 1st lens G lead key 191 3 Upper screw for attaching the 1st lens G lead key Adhesive Lockend B INC ...

Page 33: ... lens G lead ring with three pieces of tape 107 107 3 Hold the 1st 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 1st lens G lead ring Be careful of the facing direction of 87 when assembled 1st lens G lead ring 1st lens G lead ring INC ...

Page 34: ... 8G Mount the hood fixed ring on the inner fixed tube and align A and B Index position Inner fixed tube A B Hood fixed ring Hood fixed ring 174 3 Attach the hood fixed ring with three screws 174 Adhesive Lockend B Hood fixed ring INC ...

Page 35: ...w smoothly change the spring to a thicker one When the MF ring is rotated all the way to 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 65 3 96 6 Grease NKS 211SP Pattern surface Adhere the focus index sheet with the adhesive double coated tape and two pieces of tape 196 Position the focus index sheet as foll...

Page 36: ...o the FPC contacts area Inner fixed tube SWM unit Mount the SWM unit on the inner fixed tube To attach the SWM unit firmly to inner fixed tube tighten three rollers SWM relay FPC Protection tape Roller 3 Adhesive Lockend B 158 159 SWM unit Be careful of the facing direction of 159 when assembled INC ...

Page 37: ... washer Fig 1 Rotate the washer 160 leftwards and fit the convex portion of the washer in the concave portion of the inner fixed tube Fig 2 Grooved guide track Fig 1 Fig 2 Select from A to C Standard C Grease EM 60L Apply to the convexed surface 156 This is not used in some cases Convex portion of washer Select from A to C Select from A or B Procedure for putting washer Convex portion of washer Co...

Page 38: ...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 Fig 1 Fig 2 Fig 3 Inner fixed tube 160 Apply here Adhesive Screw lock Adhesive Screw lock Adhesive Screw lock Apply here Apply here INC ...

Page 39: ...ocus coupling pin in the key groove Focus coupling pin Focus coupling key 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 Grease I 40 Apply to the key groove Lens front infinity side Zoom TELE position Focus coupling key INC ...

Page 40: ... facing upwards Mount the focus fixed tube on the inner fixed tube Magnetic tape Focus fixed tube Focus fixed tube Inner fixed tube Grease NKS 211SP Apply to the tape surface Magnetic tape Focus fixed tube Be careful so that fingers or a screwdriver do NOT touch the magnetic surface INC ...

Page 41: ...lers to the focus fixed tube in numeric order from Fig 1 to Fig 3 Fig 1 Fig 2 Fig 3 Roller 158 157 Roller Roller Adhesive Lockend B Adhesive Lockend B Adhesive Lockend B Focus fixed tube continued Be careful of the facing direction of 157 when assembled INC ...

Page 42: ...ole and reference position Attach the focus encoder brush temporarily 96 2 Focus fixed tube Focus coupling key Focus FPC Focus encoder brush Focus FPC Focus encoder brush Reference hole 96 Adhesive Screw lock Adhesive Lockend B Confirm that the focus coupling pin fits in the groove of the focus coupling key Reference position Focus fixed tube continued INC ...

Page 43: ...Fig 2 Fig 3 Adhesive Screw lock New tool Positioning tool Positioning tool Set the zoom to Middle position and turn the focus turning tube towards side Fig 1 Insert the infinity positioning tool J11347 into the tool hole Fig 2 Position the focus encoder brush and tighten the screw 96 Fig 3 Align mark with the rounded bottom part of the brush INC ...

Page 44: ...24 70 2 8G SWM coupling key 96 2 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 Adhesive Lockend B ＢＡ SWM SWM coupling key INC ...

Page 45: ... PCB Caution To prevent short circuit attach the tape so that the pins of the CPU do not touch the screw Attach the main PCB based on the reference position and stabilize with two screws 81 and two washers 74 81 2 74 2 Adhesive Screw lock Reference position Main PCB unit INC ...

Page 46: ...oldered side facing outwards and attach it Adhesive Screw lock Connect the SWM relay FPC to the connector of the main PCB SWM relay FPC Lug plate Solder Lead wire Contact FPC Connect the contact FPC and focus FPC to each connector Tuck the slackened portion of each FPC into the back of the main PCB Focus FPC INC ...

Page 47: ... to Caution Do NOT touch the sensor area 197 TA 0004 3 10 197 TA 0004 3 10 GMR base plate GMR base plate Based on the following reference position attach the tape 190 197 to the GMR base plate and peel off a backing paper of the tape Reference position Reference position Based on the following reference position attach the tape 190 197 to the GMR base plate Changed page 2 January 10 2008 Ｍサービス計画...

Page 48: ... GMR unit with the reference position of the inner fixed tube Then tighten the screw 73 GMR unit Reference position for attachment Back side of GMR unit Reference position for attachment 197 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 INC ...

Page 49: ...1 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 Oscilloscope 2ch Oscilloscope 1ch Rat...

Page 50: ...ger Level 0V INPUT ch1 AC INPUT ch2 AC 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 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 ...

Page 51: ... 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 sensor may malfunction so replace it and make a readjustment 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 ma...

Page 52: ...r part protrudes from the edge of the GMR base plate by 1mm as below Then push 196 from above with the fingers Caution Do NOT attach 196 at the closer position to the GMR sensor than 197 1 mm protrusion from the edge of the GMR base plate Position the GMR FPC towards the direction 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...

Page 53: ...the MF ring and washer 169 on the SWM unit MF ring SWM unit 169 Select from A to C Caution Put with rounded surface facing downwards Grease OS 30MEL Apply to the overall sliding surface Grease GN 20S Apply to sliding surface Standard B MF ring INC ...

Page 54: ...ttern face Reference position of attachment Lead wire black Lead wire blue Name plate Focus window Attach the zoom FPC to the exterior fixed tube based on the reference position A area Bend the zoom FPC slightly inwards at A area Push the lead wire inwards as below INC ...

Page 55: ...sheet MF ring Exterior fixed tube 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 In 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 Exterior fixed tube Main PCB Grease OS 30MF Apply to the overall b...

Page 56: ...m FPC to the connector of the main PCB Tuck the zoom FPC inwards as below 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 Cutout Apply to the sliding surface Grease OS 30MF Bottom INC ...

Page 57: ...umeric order from to Tighten five screws 174 in numeric order from to 67 2 174 5 4 To Zoom key groove Zoom key groove Rear fixed tube Zoom coupling key Adhesive Lockend B Caution Do NOT apply the adhesive here Adhesive Lockend Ｂ Grease OS 30MF Grease GN 20S Apply to the sliding surface Changed Page overall revision December 15 2007 Ｍサービス計画課 INC ...

Page 58: ...JAA80251 R 3723 A Ａ 31 AF S 24 70 2 8G Select from A to J 3rd lens group J11346 3rd lens group Washer Assemble the 3rd lens group with J11346 INC ...

Page 59: ...tion Removing the 4th lens group needs the lens alignment work 4th lens group Washer Washer with being light shielding tape attached Washer 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 be removed dip a wiping cloth Savina Minimax a little in ethanol and wipe the surfac...

Page 60: ...irection of the arrow and tighten four screws 72 Body side 78 Grease I 40 172 4 Adhesive Lockend B Direction for positioning Bayonet mount unit Bayonet mount unit Blade actuating plate spring Spring Disk lever C ring Apply to the sliding surface Spring hooking plate Direction of attaching Mount rubber Blade actuating plate Put the disk lever between the blade actuating plate spring and blade actua...

Page 61: ...ion for full aperture so that the aperture becomes full open by the blades Adhesive Screw lock 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 81 2 Limit plate adjustment Aperture lever INC ...

Page 62: ...p Caution Removing the 4th lens group needs the lens alignment work 4th lens group Washer Washer with being light shielding tape attached Washer 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 be removed dip a wiping cloth Savina Minimax a little in ethanol and wipe the s...

Page 63: ...t 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 Aperture lever If the aperture blades are fully opened too quickly or slowly adjust the position of the aperture lever by two screws 113 INC ...

Page 64: ...nspection standard 1 0Ω or less In case the result is more than 1 0Ω clean the screw of the GND line or the connector Measuring point of continuity Screw of Zoom brush GND screw Zoom brush Zoom brush Reference position for Zoom brush Rounded part 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 INC ...

Page 65: ... and by attaching the two cover plates 194 with two pieces of the tape 193 for each Zoom brush M A brush 194 193 Attach the M A brush with the screw 100 By visual check confirm that the M A brush touches the pattern surface M A brush 100 Adhesive Screw lock M A brush INC ...

Page 66: ...er ring Bayonet side Rubber ring Sloped Zoom ring Cross section view of Focus ring Zoom ring Sheet Attach the sheet 163 163 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 G4 lens INC ...

Page 67: ... numeric order from to 50 2 Oil barrier OS 30MEL Apply to the overall rim J11348 with countersink for the screw Positioning of G1 lens 76 77 72 3 1st lens G unit Caution If G1 lens is removed the lens alignment work will be necessary G1 lens 61 Countersunk screw G2 G3 lens 1st lens group Adjustment washer A I INC ...

Page 68: ...S 24 70 2 8G Mount the filter ring and tighten the two screws 63 and the screw 79 in numeric order from to Attach the sheet 63 2 This hole diameter is larger than the other two Filter ring Sheet Filter ring 79 Shoulder screw INC ...

Page 69: ...ection of the arrow and tighten three screws 182 Attach the contacts unit with two screws 180 182 3 5th lens group If the screwhole for 182 got larger use the thicker screw 1K010 343 instead 182 has M1 4 diameter while 1K010 343 has M1 7 diameter Direction for positioning 180 2 180 182 182 INC ...

Page 70: ...ect 6 Infinity positioning for FFD adjustment of AF S24 70 inspection and adjustment software J18427 and perform infinity adjustment Fix the aperture lever so that the aperture is full open Set the zoom ring to WIDE and read the value 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 Remove the bayonet mount Increase decrease th...

Page 71: ...al interface USB interface cannot be used As long as the above requirements are met either desktop or notebook PC is available 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 Adjustment for Electrical Device 2 Inspection Inspection of Lens switches and Lens condition Inspection of GMR encoder Operations In...

Page 72: ...2C terminal of PC is a 9 pin type connect it by using the 25 pin 9 pin conversion connector This connector is NOT supplied as RJ so use commercial products on the market System configuration Constant voltage power supply Set voltage 6V Oscilloscope AF I communication box J15306 1 AF I communication adapter J15307 Caution Keep the lens in horizontal position during adjustment To RS232C terminal INC...

Page 73: ...me 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 AF S 24 70 inspection program 1 Menu screen 1 2 3 4 5 6 7 8 9 INC ...

Page 74: ...us turning tube be sure to make adjustments Select Adjustment for Electrical Device on the menu Follow the instructions on the screen for preparation Then click Next Adjustment for electrical device Click NEXT button Click NEXT button When the adjustment is completed click Close to end the procedure INC ...

Page 75: ...V C H 2 5 V 5 m s d i v DC 10 1 DC 10 1 NORM 200KS s Oscilloscope setting V Div CH1 5V V Div CH2 5V Coupling DC Time Div 1m Sec Trigger Mode NORMAL Trigger Coupling DC Trigger Source CH1 Trigger Position 4div Trigger Type EDGE Trigger Level 2 5V INC ...

Page 76: ...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 focu...

Page 77: ...he 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 click Close button Click Start insp button Select Inspection of GMR encoder Operations on the menu Follow the instructions on the screen for preparation Then click Next INC ...

Page 78: ... of ADJUST DELAY TIME gets the longer the inspection time becomes 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 whil...

Page 79: ...io Lens position others 11 30 pulse occurrence ratio 10 or less for Df1 Df6 of the screen Lens position horizontal 21 30 pulse occurrence ratio Lens position others 21 30 pulse occurrence ratio Lens position horizontal 31 pulses or more of the screen Lens position others 31 pulses or more Only one occurrence is judged as defective Df1 Df6 shows the lens driving amount When the inspection ends the ...

Page 80: ...sition Index 90 angle leftward ditto Front lens group 90 angle upward ditto Front lens group 90 angle downward ditto 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 Click Inspection of Lens Driving Time on the menu Follow th...

Page 81: ...Coupling DC Trigger Source CH1 E terminal H terminal Driving time There are two types in shape of waveforms of E and H terminals Waveform 1 starts and goes up 2 starts and goes down Select Inspection of Lens switches and Lens condition on the menu Follow the instructions on the screen for preparation Then click Next If Inspection result shows Good click Close button INC ...

Page 82: ... ROM How to back up FLASH ROM data Click Backup Restoring of EEP ROM Data button Click Read from Lens button Follow the instructions on the screen for preparation Then click Next When reading FLASH ROM data is completed click OK button Click Write into File button INC ...

Page 83: ...JAA80251 R 3723 A Ａ 55 AF S 24 70 2 8G Type the file name in any folder and click Save button File name e g Click OK button Click Close button to end INC ...

Page 84: ... ROM data Click Backup Restoring of FLASH ROM Data button Click Read from File button Select the file name in the folder that was saved as backup and click Open button e g When reading FLASH ROM data is completed click OK button Click Write into Lens button INC ...

Page 85: ...JAA80251 R 3723 A Ａ 57 AF S 24 70 2 8G Click OK button Click Close button Follow the instructions on the screen for preparation Then click Next INC ...

Page 86: ...tion inspection Main PCB unit Aberration compensation inspection only SWM unit GMR sensor Focus turning tube unit 1 1 lens group unit 1 2 lens group unit 3rd lens group unit 4th lens group unit 1st lens G lead ring helicoid tube unit Necessary adjustment when replacing parts Parts to be replaced Adjustments INC ...

Page 87: ...ber is replaced and or when each lens part is disassembled Be 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...

Page 88: ...JAA80251 R 3723 A Ａ 60 AF S 24 70 2 8G Target chart Resolution chart INC ...

Page 89: ...Preset and ISO to 200 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 Test chart As shown below fit the target chart with the center of the focus area in viewfinder Target chart Resolution chart In viewfinder Connect the PC and camera via USB c...

Page 90: ...JAA80251 R 3723 A Ａ 62 AF S 24 70 2 8G Confirm that AF S 14 24 70 2 8G is selected on Lens select screen Click OK Click the Defocus rectify Revision Changed Page 1 December 10 2007 Ｍサービス計画課 INC ...

Page 91: ...ration 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 100μ ｍ 100μ ｍ 50μ ｍ 50μ ｍ 0μ ｍ Input the value of the focused position into the entry field e g Focus position is 100μm toward the front focus side INC ...

Page 92: ...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 to on the previous page 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 1m 50cm 2cm Caution Confirm that the aperture is fully open Perform the operations from to on the prev...

Page 93: ...yed Click OK When the rewriting ends and the following screen appears click OK When the following screen appears click OK Click END twice to complete the adjustment software Note Unless the camera is turned off once the value that was written in FLASH ROM is not reflected INC ...

Page 94: ...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 INC ...

Page 95: ... AF S 24 70 IBM 3 5 J 18 438 AFS 24 70 調芯装置用調整ソフトＬＷＭ ADJ FD LWM FOR 24 70 ALIGNMENT J11346 AF S 24 70 2 8G 3 群回螺器 WRENCH FOR 3G AF S 24 70 2 8G J11347 AF S 24 70 2 8G 無限位置出しピン INFINITY POSITIONING PIN FOR AF S 24 70 2 8G J11348 AF S 24 70 2 8G G1 位置決めピン G1 POSITIONING PIN FOR AF S 24 70 2 8G 2 本必要 Two pins required J11349 AF S 24 70 2 8G 4 群ガイドピン 4G LENS GUIDE PIN FOR AF S 24 70 2 8G ２本必要 Two pin...

Page 96: ...EQUIP SLIDE RAIL J19127S AF S 2 4 70G 用ホルダー ATTACHMENT FOR HOLDER AF S 24 70G DL 1640 オシロスコープＤＬ１６４０ OSCILLOSCOP DL 1640 EM 60L グリースＥＭ６０Ｌ GREASE EM 60L GN 20S グリースＧＮ２０ＳＳＱ用 GREASE GN 20S SQ L 241 ロックタイト２４１青 LOCTITE 241 50ml NKS 211SP 接点潤滑剤ＮＫＳ２１１ＳＰ POINT OF CONTACT LUBRICANT NKS 211SP FOR AF S 18 135 I 40 Ａｆレンズ用グリース I 40 GREASE for af lens EDB0011 ネシロック赤 1401C SCREW LOCK 1401C OS 30M EL ...

Page 97: ...W TOOL RJ 番号 RJ No 名称 NAME OF TOOL 備考 OTHERS MZ 800SEL ドライサフＭＺ８００ＳＥＬ DRY SURF MZ 800SEL GP 1RS グリスＧＰ１ＲＳ GREASE GP 1RS FOR AF S 18 135 M300S ザヴィーナミニマックス SAVINA MINI MAX J11341 ＧＭＲ出力点検工具 GMR output inspection tool FOR AF S 18 135 INC ...

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Summary of Contents for AF-S Zoom-Nikkor ED 24-70mm/F2.8G (IF)

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Nikon AF-S Zoom-Nikkor ED 24-70mm/F2.8G (IF), Repair Manual

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Summary of Contents for AF-S Zoom-Nikkor ED 24-70mm/F2.8G (IF)

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Related manuals for AF-S Zoom-Nikkor ED 24-70mm/F2.8G (IF)

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