— 27 —
Fig. 4-14.
4-14.Hall Element (H001, H002 (T/S Reel)),
Photo Transistor (Q001, Q002 (Tape Top/Tape End), D001 (Tape LED)),
LED (D001 (Tape LED))
1. Removal procedure
1)
Remove the LS chassis block assembly. (Refer to 4-10.)
2)
Remove the LS grease cover.
3)
Remove the two solderings and remove Q001 (tape top).
4)
Remove the two solderings and remove Q002 (tape end).
5)
Remove the two solderings and remove D001 (tape LED).
6)
Remove the four solderings respectively from H001 (T reel)
and H002 (S reel) and remove the H001 and H002.
2. Attachment procedure
1)
Solder H001 (T reel) and H002 (S reel) respectively at the four
locations.
2)
Solder Q002 (tape end) at the two locations.
3)
Solder Q001 (tape top) at the two locations.
4)
Solder D001 (tape LED) at the two locations.
5)
Attach the LS grease cover.
6)
Attach the LS chassis block assembly to the mechanical chassis.
(Refer to 4-10.)
Note:
Be careful of the plarities of the Hall element (H001, H002), Photo-
transistor (Q001, Q002) and LED (D001).
H002
Hall element (S reel)
D001
Diode (tape LED)
Q002
Photo transistor
(tape end)
Q001
Photo transistor
(tape top)
LS chassis
assembly
LS chassis assembly (rear view)
TG1 arm metal
H001
Hall element (T reel)
FP-300 flexible board
FP-301 flexible board
LS-057 board
FP-302 flexible board
Push out hook
Tape LED (D001)
S reel sensor (H002)
Drum side
T reel sensor (H001)
Drum side
A polarity exists.
The protrusion faces
inside unit.
A polarity exists.
The protrusion faces
inside unit.
Remove the two
solderings
Outside the edge of the shaft
Inside the top edge of the metal
LS grease cover
Three
claws
Drum side
