Sony HVR-A1J Service Manual page 232

3-2. Drum
1. Removal procedure
Enter the [ULE] mode.
1)
2) Peel away the portion A of the drum flexible board from the
flexible adhesive sheet 1.
Remove the three screws (special head screw M1.4 × 2.0) 2
3)
and remove the drum 3.
4) Peel away the flexible adhesive sheet 4.
(Don't re-use the flexible adhesive sheet. )
Drum (rear view)
Key Points
in Re-assembling
Drum (rear view)
Hole
(reference B)
HOW TO PLACE
THE MECHANISM
Points to be noted
After the flexible board is attached to the
flexible adhesive sheet, place the flexible
board, that is folded up, at the rear of the
mechanism chassis to prevent the adhered
portion from peeling away.
Flexible board adhesive portion
HVR-A1J/A1U/A1N/A1E/A1P/A1C
Tape supporter block
3 Drum
Slot
(reference A)
Reference pin B
Drum base blockassy
Cassette
compartment
assy
Attach the flexible adhesive sheet along the
outer shape of the drum base block assy.
2. Attachment procedure
Enter the [ULE] mode.
1)
2) Attach the flexible adhesive sheet 4.
3) Hold the tape supporter block, and set the reference holes A
and B to the drum base reference pins A and B.
4) Install the the drum 3 with the three screws (special head screw
M1.4 × 2.0) 2 in the order of B, C and D.
Tightening torque: 0.04 ± 0.01 N•m (0.41 × 0.1 kgf•cm)
5) Attach the portion A of the drum flexible board to the flexible
adhesive sheet 1.
6) Clean the tape path mechanism by referring to Section 2-2.
(Refer to Section "2-2. Tape Path System Cleaning".)
7) Implement the tape path adjustment. (Refer to Section "4-3.
Tape Path Adjustment")
Reference pin A
D
B
2 Three screws (M1.4
Flexible adhesive sheet attachment position
Key Points in Re-assembling
Flexible adhesive sheet
6-73
A
1 Flexible adhesive sheet
4 Flexible adhesive sheet
Points
to be noted
Don't re-use the flexible
adhesive sheet.
C
×
2.0)
Flexible adhesive sheet
Attach the flexible board while aligning
its side with the outer profile of the
flexible adhesive sheet.