Sony DNW-A100 Maintenance Manual page 201

15. Cleaning
Clean the video heads and tape running surface of
the upper drum. (Refer to Section 5-2-3 in
Maintenance Manual Part1.)
n
After cleaning, wipe using a dry cleaning cloth.
16. Attach the Video Head Cleaner Assembly
(1) Insert the cleaning roller into the clearance
between the full-erase head and height
determing plate as shown in the figure.
(2) Adjust the position of the two pins of the
video head cleaner assembly with the two
holes of the height determing plate.
(3) Tighten the screw while pushing the video
head cleaner assembly in the direction
indicated by the arrow A.
(4) Fix the harness to the position on the sensor
holder as shown in the figure.
(5) Connect the harness of the video head cleaner
assembly to connector CN851 on the PD-35
board.
(6) Bind the two harness of the full-erase head
and video head cleaner asembly with a new
harness clamper (or the equivalent).
(7) Adjust the position of the cleaning roller.
(Refer to step 5 in Section 5-4.)
Adjustment after Replacement
17. Confirm the Tape Running
Refer to Section 7-1-2.
18. Confirm the Video Tracking
Refer to Section 7-1-3.
19. Confirm the CTL Head Height
Refer to Section 7-1-4.
20. Adjust the CTL Head Position
Refer to Section 7-1-5.
21. Confirm the AT Head Height
Refer to Section 7-1-6.
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
Video head cleaner
assembly
Harness clamper
Height
Harness
determing
plate
CN851
PD-35
board
Sensor holder
PD-35 board
CN851
Harness
Sensor holder
Attach the Rotary Head Cleaner Assembly
22. Confirm the AT Head Azimuth
Refer to Section 7-1-7.
23. Confirm the AT Head Head-to-tape
Contact.
Refer to Section 7-1-8.
24. Adjust the AT Head Position
Refer to Section 7-1-9.
25. Perform the Electrical Adjustments
after Drum Replacement
Refer to Section 6.
5-2. Upper Drum Assembly Replacement
Screw(PSW3 x 8)
A
Cleaning roller
Height determing
plate
Bundling
band
Video head cleaner
Full-erase
assembly
head
5-17