Nikon JAA78301 Посібник з ремонту - Сторінка 24
Переглянути онлайн або завантажити pdf Посібник з ремонту для Об'єктив камери Nikon JAA78301. Nikon JAA78301 27 сторінок. Af zoom-nikkor if 6g.5-5.3/f 200mm-28 e
Друкувати сторінку
Inspection of Encoder signal
Use the F70 camera body and the inspection software for lens encoder signals, and make an inspection by displaying the
encoder signals on PC monitor.
How to inspect
● Start the inspection software for lens encoder signals, and select "1. READING OF LENS ENCODER SIGNAL".
Then follow the instructions as displayed.
● Encoder signal
When the zoom and distance scale rings are set in position, the encoder signals (1-3) should be as follows:
Zoom ring
Distance
scale position
∞
１.0 ｍ
Closest distance position
In case the encoder signal values are different from the above, the following causes should be considered.
● Wrong position of attaching the brush
● Defective brush or FPC
● Dirty encoder pattern of FPC
● Wrong position of attaching FPC
f=28mm
1
2
3
1
dfh
feh
f8h
dah
dfh
feh
7dh
dah
dfh
feh
d6h
dah
- L22・AF28-200/3.5-5.6G -
f=50mm
f=105mm
Encoder signal
2
3
1
2
feh
f8h
7dh
feh
feh
7dh
7dh
feh
feh
d6h
7dh
feh
JAA78351-R.3597.A
f=200mm
3
1
2
3
f8h
fch
feh
f8h
7dh
fch
feh
fch
d6h
fch
feh
d6h