JVC CA-UXP55, Service Manual

Page: 16 / 42

1-16 (No.22036)
2.2 Cassette mechanism assembly
2.2.1 Removing the playback/recording & eraser head
(See Fig.1 to 3)
(1) While shifting the trigger arm seen on the right side of the
head mount in the arrow direction, turn the flywheel (R) in
counterclockwise direction until the head mount has gone
out with a click (See Fig.1).
(2) When the flywheel (R) is rotated in counterclockwise direc-
tion, the playback/recording &erase head will be turned in
counterclockwise direction from the position in Fig.2 to that
in Fig.3.
(3) At this position, disconnect the flexible wire (outgoing from
the playback/recording &erase head) from the connector
CN31 on the head amplifier & mechanism control board.
(4) Remove the flexible wire from the fixing point b on the
chassis base.
(5) Remove the spring a from behind the playback/recording
&erase head.
(6) Loosen the reversing azimuth screw A retaining the play-
back/recording &erase head.
(7) Take out the playback/recording &erase head from the
front of the head mount.
2.2.2 Reassembling the playback/recording & eraser head
(1) Reassemble the playback/recording & eraser head from
the front of the head mount to the position as shown in
Fig.3.
(2) Fix the reversing azimuth screw A .
(3) Attach the spring a from behind the playback/recording &
eraser head.
(4) Attach the flexible wire to the fixing point b on the chassis
base.
(5) Attach the flexible wire (outgoing from the playback/record-
ing & eraser head) to the connector CN31 on the head am-
plifier & mechanism control board.
Fig.1
Fig.2
Fig.3
fly wheel(R)
trigger arm
Head (R/P,Erase)
Flexible wire
spring a
CN31
fixing point b
Head amp & Mecha
control board
head mount
REV
azimuth screw
Head (R/P,Erase)
flexible wire
spring a
CN31
fixing point b
Head amp & mechanism
control board
A
belt
CN32
CN31
Main motor
assembly
Main motor
assembly
Head amp & Mechanism
control board
flexible wire
4pin flat wire
B B
B
C
C