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MD-X60H
IC901 RH-iX2757AFZZ:System Control Micon (4/4)
Pin No.
Terminal Name
93
APSS Detection P51/A9
94
RUN PULSE
P52/A10
95
Side B FP SW
P53/A11
96
Side A FP SW
P54/A12
97
Casette SW
P55/A13
98
CrO2 SW
P56/A14
99
MAIN SW
P57/A15
100
–
VSS
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
IC501 VHiLC75396E-1 (LC75396E):Audio Prosessor
LSELO
49
LINVIN1
50
L5
51
L4
52
L3
53
L2
54
L1
55
56
R1
57
R2
58
R3
59
R4
60
R5
61
RINVIN1
62
RSELO
63
RTIN
64
Active
Input/Output
Port Name
Level
Input
Input
Input
Input
Input
Input
Input
–
48
47
46
45
44
43
+
-
-
+
CONTROL
CIRCUIT
+
-
-
-
+
+
2
3
4
6
1
5
Figure 84 BLOCK DIAGRAM OF IC
Setting
in Reset
H
H
Detection of APSS signal.
Detection by switching L to H only in APSS operation mode.
–
–
Tape end detection.
Repeated input of L->H->L->H during tape running.
L
–
Detection of B side record enabling/disabling "L": Record is
enabled if SW is ON.
L
–
Detection of A side record enabling/disabling "L": Record is
enabled if SW is ON.
L
–
Cassette detection.
"L": Cassette exists if SW is ON.
"H": Cassette does not exist if SW ON.
L
–
CrO2 tape detection.
"H": CrO2 tape exists if SW is OFF.
"L": Normal tape exists if SW is ON.
L
–
Mechanism operation detection.
"H": Any state other than STOP state if SW is ON.
"L": STOP state if SW is ON.
–
–
Ground potential. Connected to VSS.
42
41
40
39
38
37
36
+
+
+
-
-
-
+
-
LOGIC CIRCUIT
-
+
-
-
+
+
8
7
9
10
11
12
13
– 84 –
Function
35
34
33
LFCOM
32
LFOUT
31
+
-
+
-
+
-
LRIN
30
LRCOM
29
LROUT
28
LVref
27
+
LVref
-
VSS
26
CE
25
CCB
DI
24
INTERFACE
CL
23
Vref
22
+
RVref
-
RVref
21
RROUT
-
20
+
RRCOM
19
RRIN
18
-
+
+
+
-
-
RFOUT
17
14
15
16
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Troubleshooting
