1-26 (No.MB191)
3.3.4 Removing the leaf switches
(See Fig.8)
(1) From the back side of the cassette mechanism assembly,
remove the solders from the soldered sections
e
attaching
the leaf switches on the switch board.
(2) From the front side of the cassette mechanism assembly,
pull out the leaf switches.
3.3.5 Removing the switch board
(See Fig.8)
(1) From the back side of the cassette mechanism assembly,
remove the solders from the soldered sections (
f
,
g
) con-
necting the wires.
Note:
After reassembling, check the polarity of the wires.
(2) Release the claws
h
in the direction of the arrow and re-
move the switch board from the cassette mechanism as-
sembly.
Fig.8
3.3.6 Removing the PB head block
(See Fig.9)
(1) From the bottom side of the cassette mechanism assem-
bly, remove the tie band fixing the wire.
Reference:
After reassembling, fix the wire with a new tie band as
before.
(2) From the front side of the cassette mechanism assembly,
release the claw
i
in the direction of the arrow
1
and pull out
the pinch roller in an upward direction.
(3) Remove the screw
B
attaching the PB head.
(4) Remove the spring from the section
j
.
(5) Move the PB head block in the direction of the arrow
2
and
remove the hooks k from the PB head block.
(6) Take out the PB head block from the cassette mechanism
assembly.
Fig.9
Cassette mechanism assembly
Switch board
Wire (Black)
Wire (Red)
Switch board
f
h
g
g
h
e
h
e
h
h
e
2
B
Pinch roller
Tie band
Wire
i
k
PB head
Cassette mechanism assembly
k
Spring
j
k
PB head block
1
