Initialization Of Mechanism Unit - Panasonic SA-AK640E Service Manual

Switching Initial Motor Direction
Position
Home Cam gear rotate CCW to HOME
Position Motor : CCW
Cam gear rotate CCW to HOME
Motor : CCW
UD base move from bottom to top
Motor : CW
UD base move from top to bottom
Motor : CCW
Play Cam gear rotate CW from HOME to Play
Driving Driving Position. Motor : CW
Position
Cam gear rotate CW from HOME to Play
Driving Position. Motor : CW
Drive tray from STOCK position to PLAY
position. Motor : CW
Drive tray from PLAY position to STOCK
position. Motor : CCW
Drive tray from PLAY position to STOCK
position. Motor : CCW
· Switching mode G is used during initialization to ensure that the switching gear is at the release (down) condition before the
initialization process begins.
3.7.

Initialization of Mechanism Unit.

· Mechanism Initialization -- This mechanism is designed to operate & set to a pre-defined position to prevent malfunction when
unavoidable circumstances happen. For examples: user mis-handling during transportaion or abnormal user operations.This is
comply to the product shipping reliability standards.
· Mechanism is initialized when the mechanism controller is unable to detect the present condition/state of mechanism. For
example, when the microcomputer carries out a cold start. (In complete unit)
· Once the initialization process is completed, the mechanism unit is set to this condition:-
1. Tray 1 is at PLAY position (Top tray)
2. The traverse unit is at clamping condition (PLAY SW-L)
3. All the remaining trays are in STOCK Position (Trays 2 ~ 5 )
4. Plunger lever at release condition
5. Cam gear is at Home position ( HOME SW-L)
6. Motor is free (CW-L, CCW-L)
Note: This is same as shipment condition. (In complete unit)
· Below is the flow chart of the initialization process:-
Switching Initial Motor Direction
Mode
C UD base move from bottom to top
Motor : CW
D UD base move from top to bottom
Motor : CCW
E Cam gear rotate CW from HOME to
Play Driving Position. Motor : CW
G Cam gear rotate CW from HOME to
Play Driving Position. Motor : CW
A Drive tray from STOCK position to
PLAY position. Motor : CW
B Drive tray from PLAY position to
STOCK position. Motor : CCW
F Cam gear rotate CCW from Play
Driving Position to HOME. Motor : CCW
H Cam gear rotate CCW from Play
Driving Position to HOME. Motor : CCW
G Cam gear rotate CW from until trays full
open. Motor : CW
15
CRS1
Function
Tray selection from bottom
to top
Tray selection from top to
bottom
After tray selection, cam
gear rotate to Play Driving
Position
After tray selection, cam
gear rotate to Play Driving
Position
Load tray to Play
Unload tray from Play to
Stock
After load tray to Play, cam
gear return to HOME
After unload tray from Play,
cam gear return to HOME
Open trays while one tray
Play