Sony DNW-A100 Maintenance Manual page 214

5-4. Cleaning Roller and Video Head Cleaner Assembly Replacement
5. Adjust the Cleaning Roller Position
(1) Check that the cleaning roller does not come
in contact with the upper drum as visual.
(Specification 1)
If the cleaning roller comes in contact with
the upper drum, bend the portion B of the
arm bracket assembly in the direction of the
arrow C.
(2) Check that the cleaning roller does not come
in contact with the terminal on the full erase
head as visual. (Specification 2)
If the cleaning roller comes in contact with
the terminal on the full erase head, bend the
portion B of the arm bracket 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 ratchet lever and the arm
bracket assembly. (Specification 3)
If clearance does not exist, bend the portion B
of the arm bracket assembly in the direction
of the arrow D.
(4) Repeat steps (1) through (3) above until the
specifications 1 through 3 are satisfied.
5-30
Full erase head
Cleaning roller
B
A = Clearance exists.
Spec. 1:
B = Clearance exists.
Spec. 2:
1 H
2 H
3 H
Iron core
C
Spec.3: C = Clearance exists.
• When the specifications 1or 2 are not satisfied.
Portion A
(Supporting point)
Arm bracket assembly
Adjust the Cleaning Roller Position
Upper drum
Video heads
Lower drum
A
Ratchet lever
Arm bracket assembly
Portion B
C
D
DNW-A100/A50/A45
DNW-A100P/A50P/A45P