Nikon AF-S Zoom-Nikkor ED 24-85mm f/3.5-4.5G IF, Руководство по ремонту

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JAA78071-R.3583.A
- L20 ･ AF-S 24-85/3.5-4.5G -
④
In the case of smaller amplitude, for adjustment, loosen
the two screws #541 and then shift the MR head position
as shown in the right figure.
Note：
During adjustment, prevent the magnetic tape and MR
head from touching the magnetized driver bit, or the magnetic
data may be damaged.
●
In case of a presence of partial drop in the amplitude between the infinity and the near distance, the magnetic data
in magnetic tape may be damaged. Then, replace the magnetic tape and adjust it again.
《
Reference
》
●
In case the amplitude of either CH1 or CH2 seems smaller, one of the two screws #541 may be loosened.
Then, check the screws. In case the screws are fully tightened, the MR head may be troubled. Then, be sure to
replace the MR head unit B15 and adjust it again.
⑦
Turn off the rated voltage power supply and remove the SWM unit. Ｐ
＃ 541 × 2
MR head
Magnetic tape
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
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