JAA79201-R.3669.A
- A29・AF-S 18-55/3.5-5.6G -
(4) Inspection of lens-servo time
Make this inspection on both focal length 18mm (W) and 55mm (T).
Connect the probes of oscilloscope to E and H terminals of the AF-I communication box (J15306). Select the
servo
driving amount respectively. Each lens-servo drive 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.
E terminal
H terminal
E terminal
H terminal
Servo driving time
Servo driving time
●Oscilloscope setting
V/Div
:
5V
Coupling
:
DC
Time/Div
:
20 m Sec
Trigger Mode
:
SGL (S)
Trigger Coupling
:
DC
Trigger Source
:
CH1
※
The waveforms of E and H terminals have the
forms for going up for start and going down for
start.