Mitsubishi Electric HS-U449 Service Manual page 38

2-33.DRUM CLAMPER, DRUM ASSY
DECK POSITION : Normal
(Removal)
1. Disconnect the LEAD CONNECTOR of the DRUM
ASSY shown in Fig. 2-33-1.
2. Remove the two screws (a and b) fastening the
DRUM CLAMPER shown in Fig. 2-33-1 to remove the
DRUM ASSY with the DRUM CLAMPER.
3. Rotate the DRUM CLAMPER in Fig. 2-33-2 in the
direction shown by arrow A to remove it from the
DRUM ASSY.
(Installation)
1. Install the DRUM CLAMPER in Fig. 2-33-2 to the
DRUM ASSY by rotating it in the direction shown by
arrow B.
2. Hook the catch of the DRUM CLAMPER shown in Fig.
2-33-3 to the reference pin.
3. Fasten the screw (b) while pushing Part A in the
direction shown by arrow C (clockwise when viewed
from the top) as shown in Fig. 2-33-3.
Note : Make sure that the catch of the DRUM CLAMPER
touches the side of the reference pin.
4. Fasten the screw (a) shown in Fig. 2-33-3.
Note : Make sure that the catch of the DRUM CLAMPER
touches the side of the reference pin.
5. Connect the LEAD CONNECTOR of the DRUM ASSY
with the DRUM CLAMPER shown in Fig. 2-33-1.
6. Perform "3. Interchangeability Adjustment of the
Mechanism."
7. Perform the Playback Switching Point adjustment
referring to the Circuit Adjustment section.
8. Clean the DRUM ASSY shown in Fig. 2-33-1 with
alcohol.
a
DRUM ASSY with
DRUM CLAMPER
MAIN PLATE ASSY
DRUM CLAMPER
Hook here to attach
DRUM CLAMPER
to DRUM ASSY.
DRUM ASSY
Reference
Pin
Reference Pin and
Catch have to
touch each other.
- 25 -
LEAD CONNECTOR
b
Fig. 2-33-1
Removing
Direction Installing
A
Fig. 2-33-2
b
Part A
a
Catch
Fig. 2-33-3
Direction
B
C