Sanyo RD 30 - Auto Shut-off Mechanism; Auto Shut-off Mechanism Function; Auto Shut-off Troubleshooting

MECHANICAL ADJUSTMENTS (Continued)
AUTO SHUT-OF F MECHANISM 7. The ASO Pulley continues rotating, so that its tooth meshes
FUNCTION with the second tooth of the ASO Lever and it moves the
1. Silicone grease (Example: SHIN-ETSU SILICONE KS-64) is ip polis oh rane Guten) Oka ONC cele
applied to the contacting surfaces of the Bushing and the
ASO Lever, and the teeth of the ASO Lever to make the
Auto Shut-off mechanism function smoothly.
If necessary, apply a proper amount of silicone grease to
them.
8. Then, the ASO Lever pushes the Stop Lever in the direction
of arrow C,so that the unit is set in the stop mode.
2. The ASO Lever is ordinarily pressed to the Bushing of the Stop Lever
Friction Assembly by the spring and moves in the direction
of arrow A in accordance with the bushing rotation. ASO Belt
3. The shaft of the ASO Pulley is elliptical in shape like a cam
as illustrated and moves the ASO Lever in the direction of
arrow B according to the rotation of the ASO Pulley.
4. The teeth of the ASO Pulley and ASO Lever do not mesh
and the shaft moves the ASO Lever back and forth by the
above described movements (A and B).
Bushing
5. When the tape is completely wound to the end, the bushing Friction Assy
rotation stops, so that the ASO Lever is moved in the
direction of arrow B by the ASO Pulley and it stops moving. ASO Pulley
6. While the ASO Pulley is rotating, its tooth is engaged with
the first tooth of the ASO Lever and it moves the ASO ASO Lever Be
Lever in the direction of arrow C. Then, the tooth of the
ASO Pulley is disengaged from the tooth of the ASO Lever.
lf there is a problem with the the Auto Shut-off mechanism,
repair it referring to the following troubleshooting.
SYMPTOM POSSIBLE CAUSE REMEDY
ASO mechanism does not | ASO Spring is unhooked Repair.
work properly.
Grease is not applied suficiently to the circumference | Apply grease.
of the Bushing or is not applied at all.
=
ASO Lever does not | Shaft of ASO Lever is | Remove grease or dust by wiping Shaft of
move properly. clogged by grease or dust. ASO Lever with alcohol.
T
ASO mechanism does not | ASO Lever is in contact with Take-up Pulley of | Insert the washer below the E ring of the
work at all. Friction Assembly. Bushing and keep the clearance between the
E ring and the Bushing less than 0.5mm.
L
ASO Belt is worn out. Replace ASO Belt.
ASO Belt is stained. Wipe ASO Belt with benzine.
NOTE:
Although there is a case that the button is not locked by
pressing one of the Select Buttons (PLAY, FF, or REW)
without Power supplied to the unit after the unit has
automatically shut off, this symptom is not a mulfunction.