6. MECHANISM OPERATION FLOW CHART AND TROUBLESHOOTING GUIDE
CASSETTE INSERTION
+
STOP
I
End
t
I
Insert
cassette.
I
Cassette is ejected and loading
t
motor stops.
Turn off START SENSOR LEVER.
t
t
Start sensor lever turns on.
Loading motor starts in normal
t
direction and master cam clockwise.
Loading motor turns in reverse
t
direction and master cam
counterclockwise.
Does mechanism position
SW
. come
NO
off within 2.5 sec.
?
t
A
(Cassette is judged caught halfway.)
CYES
Are
starVend
sensors at low level
NO
before cassette insertion?
(Cassette LED or some other part is
$-YES
judged defective.)
I
Drum motor starts.
t
I
Tape loading.
t
I
Pinch roller comes into contact.
t
Cam switch is at
PR
position.
t
Loading motor stop.
t
1
NO
Unloading
1
End
4
1
MECHANISM OPERATION
FLOWCHF(
l
This flowchart describes the outline of the mechanism’s operation, but does not give its details.
I
Cam movement chat-t
Mode
checking
Mode
detection,
outside
(D709
SW
B)
Modedetection.
inside
(0708
SW
A)
4
3
/
I
I
60
120
7
-
Cassette
inserting
_I
3600
0 24 87.5
183.5
217
251
269
281295
320
Full-
loading
’
CSlU
“W
P”
LD
“SR
PB
ITL
fF
ITOP
Mode
detection.
00
0
0011
1 1
01
10
1001
10
outside
Mode
detection.
1
1
0
0001
1
0
00
000000
00
inside
I
ssensor
1
1
0
1
1oro
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