JAA79051-R.3624.A
- L19 ･ AF-S DX18-70/3.5-4.5G -
・
How to conduct inspection and adjustment
①
Make sure that the current and voltage of the connected rated voltage power supply are set values.
Then, turn on the power.
②
Set the oscilloscope and turn the focus ring by hand.
Note
：
Because the shape of waveform varies according to the driving speed of focus ring, set Time/Div accordingly.
③
In case of detecting any wide waveform noise, use the filter function.
How to set the filer function by Yokogawa-manufactured DL1540
１．
Press the filter button.
２．
Select "Smooth" in the menu on the PC screen.
●Setting of oscilloscope
V/Div
（
CH1
）
：２０ｍＶ
V/Div
（
CH2
）
：２０ｍＶ
Coupling
：ＡＣ
Time/Div
：５
m Sec
Trigger Mode
：
NORMAL
Trigger Coupling
：ＡＣ
Trigger Source
：ＣＨ１
Trigger Position
：＋４
div
Trigger Type
：
EDGE
Trigger Level
：０Ｖ
Standard
：
The amplitude of every pulse/waveform should be 50mV or more.
Note
：
Check the waveform by letting the focus ring to travel from the infinity-end to the near
distance end and vice versa.
C H 1 = 2 0 m V C H 2 = 2 0 m V 5 m s / d i v
A C 1 0 : 1 A C 1 0 : 1
NORM 200KS/s
CH1
CH2
INC
