Connection Diagram; Power Supply; How To Make An Inspection And Adjustment - Nikon ED 17-55mm f/2.8G IF Repair Manual

・Connection diagram
・How to make an inspection and adjustment
① Make sure that the current and voltage of the connected rated voltage power supply are set values.
Then, turn the power on.
② Set the oscilloscope and turn the magnetic tape unit by hand.
Note：Because the shape of waveform varies according to the driving speed of magnetic tape unit, 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.
C H 1 = 2 0 m V C H 2 = 2 0 m V
A C 1 0 : 1 A C 1 0 : 1
CH1
CH2
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.
Self made tool
Oscilloscope(2ch)
Oscilloscope(1ch)

Power supply(+)

Power supply(-)
Self made
tool
Magnetic tape unit
5 m s / d i v
NORM 200KS/s
- L21・AF-S DX17-55/2.8G -
JAA78851-R.3617.A
Power supply
(GND)
(+)
Oscilloscope
(2ch)
●Setting of oscilloscope
：20 mV
V/Div（CH1）
：20 mV
V/Div（CH2）
Coupling ：AC
：5 m Sec
Time/Div
Trigger Mode
：NORMAL
Trigger Coupling
：AC
Trigger Source
：CH1
Trigger Position ：＋ 4div
Trigger Type
：EDGE
Trigger Level ：0 V
INPUT (ch1)
：AC
INPUT (ch2)
：AC
INC
Set values
5.0V
100mA