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IC DESCRIPTION -1/1 (µPD178006AGC-555-3B9, µPD178018AGC) -2/2
Pin No.
Pin Name
42
SUB M CONT 2
43
MODE PL
44
REEL
45
STAND-BY
46
F/R HEAD
47
MS IN
48
LED
49
MI-1
50
MI-2
51
MI-3
52
MO-1
53
MO-2
54
MO-3
55
MO-4
56
BS CONT
57
NR CONT
58
MTL CONT
59
BEEP
60
RMT IN
61
E-VOL CE
62
E-VOL DO
63
E-VOL CLO
64
DSSA
65
RDS DI
66
DFP IN
67
FLAP IN
68
RDS CLI
69
EJECT IN
70
ACC IN
71
RE1 IN
72
RE2 IN
73
PACK IN
74
REG CPU
75
GND
76
X-OUT
77
X-IN
78
REG OSC
79
VDD
80
RESET
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I/O
O
Sub motor control output-2.
I
Mode pulse input for tape mechanism.
I
Reel pulse input for tape mechanism.
I
Mechanism Stand-by input
O
Head FWD/REV select output.
I
MS signal input (no music: "H", with music: "L"). Pulled when not used
O
Security LED flashing output ("H": 120-130 ns, 1 cycle: 3 s)
I
Diode matrix input for initial setting
O
Diode matrix output for initial setting
O
MS/BL switching output. Open when not used
O
Dolby B NR on/off output. Open when not used
O
Metal tape on/off output. Open when not used
O
Beep output (3 kHz, 50 ms)
I
Remote control input. Pulled up when not used
O
CE output to electronic VR (LC75374E)
O
Data output to electronic VR (LC75374E)
O
Clock output to electronic VR (LC75374E)
O
Outputs "H" only when DSSA L/R are operating.
I
RDS data inputPulled down when not used.
I
Detects whether DFP (front panel) is provided or not.
I
Detects whether flap DFP is open or closed.
I
RDS clock inputPulled down when not used
I
NC (pulled down)
I
ACC (accessory power supply) on/off input
I
Rotary encoder input 1.
I
Rotary encoder input 2.
I
Tape insertion status detection input
–
CPU power regulator
–
Ground
–
System clock oscillator
I
System clock oscillator
–
Regulator for oscillator circuit
–
Power supply
I
System reset input
Description
-16-
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