32
VC-SA350/350W
VC-SA355
VC-SA550/550W
1
0
1
1
1
10
1
1
1
1
1
0
1
0
0
0
1
0
1
0
0
0
1
0
0
0
0
0
1
0
0
0
1
0
1
0
0
0
1
0
S sensor
Open
Close
Mode detection inside
sensor A
1
1
1
0
0
0
0
0
0
Mode detection inside
sensor B
0
1
1
1
1
0
1
1
0
CS/EJ
ULD
PU1
PU2
VSR
PB
SLOW
FF
STOP
Cam graph E
25
20
15
10
5
0
60
120
180
240
300
360
G mechanical timing
Mode check
Cam mark
Mode detection outside
(D709 SW B)
Mode detection inside
(D708 SW A)
0
19.812
81
179
233
200
265
282
316
334
10.354
12.812
CA/END
CS/EJ
UL
PU1
PU2
VSR
PB
SLOW
FF
STOP
Mode detection outside
Mode detection inside
S sensor
EJ
UL
PU
PU2
VSR
PB
SLW
FF
STP
0
1
1
0
1
1
0
0
0
0
0
1
0
0
1 or 0
Loading motor turns in reverse
direction and master cam
counterclockwise.
CASSETTE INSERTION STOP
Cassette
inserting
Full-
loading
YES
YES
YES
NO
NO
NO
Unloading
Loading motor starts in normal
direction and master cam counter
clockwise.
Does mechanism position sw.
come off within 2.5 sec.?
Are start/end sensors at low level
before cassette insertion ?
Insert cassette.
Double action rack slides.
Drum motor starts.
Tape loading.
Pinch roller comes into contact.
Cam switch is at PB position.
Loading motor stop.
Is drum FG pulse outputted ?
End
End
Cassette is ejected and loading
motor stops.
Start sensor close.
(Cassette is judged
caught halfway.)
(Cassette LED or some other part
is judged defective.)
6. MECHANISM OPERA
TION FLOWCHART
AND TROUBLESHOOTING GUIDE
MECHANISM OPERATION FLOWCHART