Sony GY-2120WD Maintenance Manual page 122

3-3. Drum Block
5. Adjust the Cleaning Roller Position
(1) Check that the cleaning roller does not come
in contact with the upper drum as visual.
(Spec.1)
If the cleaning roller comes in contact with
the upper drum, bend the portion B of the
video head cleaner sub assembly in the
direction of the arrow C.
(2) Check that the cleaning roller does not come
in contact with the terminal of the full erase
head as visual. (Spec.2)
If the cleaning roller comes in contact with
the terminal of the full erase head, bend the
portion B of the video head cleaner sub
assembly in the direction of the arrow D.
(3) Press the iron core in the direction of the
arrow. At that time, check that clearance
exists between the cleaner lever and the video
head cleaner sub assembly. (Spec.3)
If clearance does not exist, bend the portion B
of the video head cleaner sub assembly in the
direction of the arrow D.
(4) Repeat steps (1) through (3) above until the
specifications 1 through 3 are satisfied.
3-42
Full erase head
Cleaninig roller
Spec.1 :
Spec.2 :
C
Spec.3 : C = Clearance exists.
. When the specifications are not satisfied:
Portion A
(Supporting point)
Video head
cleaner sub
assembly
Cleaning Roller Position Adjustment
Upper drum
B A
A = Clearance exists.
B = Clearance exists.
Cleaner lever
Video head
cleaner sub
assembly
Portion B
C
D
GY-2120WD/WS