Nikon AF-S Zoom-Nikkor ED70-200mm f/2.8G IF, Руководство по ремонту, Страница: 75 / 100

JAA78151-R.3584.A
- L56-13 AF-S VR 70-200/2.8G IF - May 17 2007
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(4) Inspection screen of lens driving time
Caution: When the MR ring is roated during the inspection, the waveform shows an abnormal value. So do
NOT touch the MF ring during the inspection.
①
Make the inspection on both focal length 70mm (W) and 200mm (T) Make the inspection on both focal length 70mm (W) and 200mm (T) at the five lens positions of "Fig.1".
②
Select each driving amount. Confirm that each lens driving time is within the standard. (Fig.2)
③
If the inspection result is within standard, click "Close" to end. If any of each driving amount becomes
out of standard, make the readjustment by referring to Page L56-16.
Fig.1
(Lens position when inspecting)
Tilt of Lens Position of index window
Horizontal Up / Right / Left
Front lens group 90° angle upward
Front lens group 90° angle downward
E terminal
H terminal
E terminal
H terminal
※
There are two types in shape of
waveforms of E and H terminals:
Waveform (1) starts and goes up (2)
starts and goes down.
Driving time
Driving time
Fig.2
● Oscilloscope setting
V/Div
：
5V
Coupling
：
DC
Time/Div
：
20 m Sec
Trigger Mode
：
SGL (S)
Trigger Coupling
：
DC
Trigger Source
：
CH1
INC