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5-2
Signal
CAM
MODE 1
MODE 2
MODE 3
MODE 4
REC PRF
T REEL
S RELL
END-LED
CAP PVS
T SENS
S SENS
Pin No.
MA-402
IC101
IC101
45
MA-402
IC101
IC101
37
MA-402
IC101
IC101
38
MA-402
IC101
IC101
39
MA-402
IC101
IC101
40
MA-402
IC101
IC101
86
MA-402
IC101
IC101
42
MA-402
IC101
IC101
41
MA-402
IC101
IC101
49
MA-402
IC101
IC101
90
MA-402
IC101
IC101
33
MA-402
IC101
IC101
32
O
(O.D)
CASSETTE
LOADING
CASSETTE
UNLOADING
TAPE
THREAD-
ING
TAPE
UNTHREAD-
ING
STOP
FF
REW
PB
PB
PAUSE
SLOW
x 2
CUE
REVIEW
REC
REC •
PAUSE
H
*1
*1
*1
*1
*2
H/L
*3
*4
H
*6
*6
I/O
EJECTED
O
I
I
I
I
I
I
I
I
I
I
Hi-Z
H
H
L
L
H
H/L
H/L
*4
L
*4
*4
H
L
L
L
H
*2
H/L
H/L
*4
*4
*4
L
L
L
L
H
*2
H/L
H/L
*4
*4
*4
L
*1
*1
*1
*1
*2
H/L
*3
*4
L
*6
*6
H
L
L
L
H
*2
H/L
H/L
*4
H/L
*4
*4
*7
H
H
L
H
*2
*3
*3
*4
H
*6
*6
*7
H
H
L
H
*2
*3
*3
*4
L
*6
*6
*7
H
H
L
H
*2
*3
*3
*4
H
*6
*6
*7
H
H
L
H
*2
H/L
H/L
*4
H
*6
*6
*7
H
H
L
H
*2
*3
*3
*4
H
*6
*6
*7
H
L
L
L
*2
*3
*3
*4
H
*6
*6
*7
H
L
L
L
*2
*3
*3
*4
H
*6
*6
*7
L
L
H
L
*2
*3
*3
*4
L
*6
*6
*7
H
L
L
L
*2
*3
*3
*4
H
*6
*6
*7
H
L
L
L
*2
H/L
H/L
*4
H
*6
*6
5-3.
SYSTEM CONTROL – MECHANISM BLOCK INTERFACE (MA-402 BOARD IC101)
*1. Uncertainty.
*2. “L” when erasing protection tab is bent, “H” when not bent.
*3. Pulse of period in proportion to reel rotating speed.
*4. Approx.2 msec period “H” pulse.
*5. Pulse at tape running.
*2. “L” when erasing protection tab is bent, “H” when not bent.
*3. Pulse of period in proportion to reel rotating speed.
*4. Approx.2 msec period “H” pulse.
*5. Pulse at tape running.
*6. Normally “L”. 2 msec period “H” pulse when tape top or tape end is detected.
*7. When transition to UNLOADING direction: L.
*7. When transition to UNLOADING direction: L.
When Transition to LOADING direction: H.
When CAM motor is stopped: Hi-Z.
When CAM motor is stopped: Hi-Z.
5-3
Signal
AU RF
A MUTE
AF SWP
FULL ERASE
REC P
NAPB
Pin No.
MA-402
IC101
IC101
35
MA-402
IC101
IC101
89
MA-402
IC101
IC101
106
MA-402
IC101
IC101
71
MA-402
IC101
IC101
72
MA-402
IC101
IC101
96
O
(O.D)
TAPE
THREAD-
ING
TAPE
UNTHREAD-
ING
PB
SLOW
x 2
CUE
REVIEW
REC
Hi-Z
*1
H
L
L
I/O
O
O
O
O
Hi-Z
*1
H
L
L
Hi-Z
*1
H
L
L
5-4.
SYSTEM CONTROL – AUDIO BLOCK INTERFACE (MA-402 BOARD IC101)
*1. 25Hz (PAL), 30Hz (NTSC) 50% duty pulse approx. 5 msec delayed from RF SW P.
O
(O.D)
STOP/
F F /
R E W
PB •
PAUSE
REC •
PAUSE
Hi-Z
*1
H
L
L
H
*1
H
L
L
H
*1
H
L
L
H
*1
H
L
L
H
*1
H
L
L
H
*1
H
L
L
H
*1
L
H
H
H
*1
H
L
L
AF RF envelope signal input terminal for automatic tracking.
5-4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
–
–
I/O
I/O
I
I
O
I
I
–
I/O
I/O
I/O
I/O
I
I
I
O
–
O
I
–
I
I
I
I
I
I
–
I
I
I
I
I
–
I
I
I
I
I
I
I
I/O
O
–
–
–
O
O
O
O
O
I
I
I
Servo ground
Analog ground
CTL Head signal input/output (REC mode)
CTL Head signal input/output (REC mode)
CTL amp. control signal input (gain set)
CTL amp. control signal input (gain set)
CTL amp. control signal input (for check)
CTL amp. control signal input (gain set)
Capstan FG schmitt input
Power supply unswitch 5V
AFC oscillation signal
AFC oscillation signal
AFC LPF signal
Sync input
VLPF input
Composite video signal input 2
Composite video signal input 1
Power supply OSD 5V
Composite video signal output
OSD ground
OSC 4fsc oscillator terminal signal output
OSC 4fsc oscillator terminal signal input
Analog ground
APC error voltage signal input
Auto tuning signal input
Function key analog voltage signal input 2
Function key analog voltage signal input 2
Power failure detect signal input
Destination set signal input 1
Not used
Destination set signal input 2
Take up end sensor signal input
Supply end sensor signal input
Video RF envelope signal
Audio RF envelope signal
Analog power supply
Mechanism Section CAM encoder data input 1
Mechanism Section CAM encoder data input 2
Mechanism Section CAM encoder data input 3
Mechanism Section CAM encoder data input 4
S side reel FG input
T side reel FG input
Remote Control (SIRCS) signal input
CTL amp. signal input/output (OSD)
CAM motor signal output
Not used
Not used
Not used
Top/end LED on/off control signal output
Power supply control signal output
EEP ROM write timing control signal output
OSD block control output
To 'on' the audio dub filter
Easy Timer knob pulse 1 signal input
Easy Timer knob pulse 2 signal input
Power supply
VSS (SERVO)
AN GND
CTL(+)
CTL (–)
CTL-BIAS
CTL-FB
CTL-AMP(O)
CTL-SMT
CAP FG
VCC (SERVO)
AFC PC
AFC OSC
AFCLPF
CSYNC
VLPF
C V IN 2
C V IN 1
OSDVSS
VIDEO OUT (CV OUT)
OSD VSS
4FSC OUT
4Ffsc IN
AVSS
APC Error
TU AFT
FUNCTION Key 2
FUNCTION Key 1
POWER FAIL
DEST 1
PB
DEST 2
T SENS
S SENS
VIDEO RF
AUDIO RF
AVCC
MODE1
MODE2
MODE3
MODE4
S REEL
T REEL
REMOCON
CTL-OSD
CAM
SAT SYNC LED
RR LED
SEARCH LED
END LED
POWER CONT
WRITE CONT
BLUE BACK
AUDIO DUB
ETR 1
ETR 2
VCC
Pin No.
Pin Name
I/O
Function
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
–
–
I/O
I/O
I/O
I/O
I/O
O
I
O
O
O
O
–
O
O
O
I
O
I
I
I
–
O
–
I
–
O
O
I
–
–
O
O
O
O
O
O
O
O
O
–
–
I
–
I
I
I
O
O
O
O
O
–
I
–
Ground
FLD ground
Clock signal input/output
Data input/output for IIC
Clock input/output for IIC bus interface
Data input/output for IIC bus interface
SCI clock input/output
Serial communication data signal output
Serial communication data signal input
Tuner audio mute
Force mono
Bilingual select
Stereo/mono control
Not used (only for secam model)
Full erase head on/off control signal
"L" : output when REC pause
Line-input selection control signal output
Enables flash write
Timer clock terminal (32khz) output
Timer clock terminal (32khz) input
Reset signal output
System clock terminal (10MHz) input
Ground
System clock terminal (10MHz) input
Smoothing capacitor connection
Sets operating mode
Not used
APC PWM signal output
Capstan TRQ PWM signal output
Erasing protection tab. Cassette in detection signal input
Not used
Not used
"H" : audio mute signal output
Capstan reverse control signal "H": when reverse
Capstan step driving signal output
Drum motor step driving signal output
Tuner PLL clock signal output
Tuner PLL chip select signal output
Tuner PLL data signal output
Normal audio PB signal output
"L": output when Hi-Fi audio REC pause (not used)
Not used
Not used
To detect type of color system
Not used
To detect mesecam signal
Drum FG schmitt amp. input
Drum FG schmitt amp. put
RF switching pulse signal output
AF switching pulse signal output
Drum motor error signal output
Capstan error signal output
Quasi VD pulse signal output
Ground
Composite sync signal input
Power supply unswitch 5V
VSS
FLD VSS
SCL0
SDA0
SCL1
SDA1
SCK1
SO1
SI1
TA MUTE
F MONO
MAIN SAP
STEREO OUT
SECAM ON
FULL ERASE
REC P
IN SELECT
FLASH WRITE ENABLE
32KHZ (OUT)
32KHZ (IN)
RESET
10MHZ (IN)
VSS
10MHZ (OUT)
CAP CONNET TO VSS
MDO
TV/VTR
APC PWM
CAP TRQ PWM
REC PROOF
NIL
NIL
A MUTE
CAP RVS
CAP QR
DRUM QR
PLL CLOCK
TU ENABLE
PLL DATA
NA PB
AF REC P
EX CTL
SECAM DET
C. KILLER DET
HEAD CLOG LED
MESECAM DET
DRUM PG
DRUM FG
RF SWP
AF SWP
DRUM PWM
CAP PWM
QVD
VSS
CSYNC
VCC
Pin No.
Pin Name
I/O
Function
5-5. SERVO/SYSTEM CONTROL, OSD MICROPROCESSOR PIN FUNCTION (MA-402 BOARD IC101)
5-5E
5-6. NICAM PROCESSOR PIN FUNCTION (NK-11 BOARD IC1)
Pin. No.
Pin Name
I/O
Function
1
OUT L
O
Analog signal output left
2
OUT R
O
Analog signal output right
3
VDD A1
–
Analog power supply 5V; DAC circuitry
4
VSS A1
–
Analog ground; DAC circuitry
5
VSS D1
–
Digital ground; DAC circuitry
6
VDD D1
–
Digital power supply 5V; DAC circuitry
7
VSS D2
–
Digital ground; DSP part
8
VDD D2
–
Digital power supply 5V; DSP part
9
TP2
I
Additional test pin 2; connected to ground for normal operation
10
N.C.
–
Not used
11
TP1
I
Additional test pin 1; connected to ground for normal operation
12
N.C.
–
Not used
13
N.C.
–
Not used
14
V TUNE
O
Tuning voltage output for crystal oscillator
15
XTAL I
I
Crystal oscillator input
16
XTAL O
O
Crystal oscillator output
17
TEST2
I
Test pin 2; connected to ground for normal operation
18
I REF
I
Resistor for reference current generation; front end circuitry
19
N.C.
–
Not used
20
VSS A2
–
Analog ground; analog front end circuitry
21
VDD A2
–
Analog power supply 5V; analog front end circuitry
22
TEST1
I
Test pin 1; connected to ground for normal operation
23
SIF2
I
Sound IF input 2
24
V REF1
I
Reference voltage; analog front end circuitry
25
SIF1
I
Sound IF input 1
26
C RST
Capacitor for power-on reset
27
VSS D3
–
Digital ground; front end circuitry
28
VDD D3
–
Digital power supply 5V; front end circuitry
29
SCL
I
Serial communication clock signal input
30
SDA
I
Serial communication data signal input
31
N.C.
–
Not used
32
N.C.
–
Not used
33
N.C.
–
Not used
34
N.C.
–
Not used
35
VDD D4
–
Digital power supply 5V; demodulator circuitry
36
VSS D4
–
Digital ground; demodulator circuitry
37
N.C.
–
Not used
38
N.C.
–
Not used
39
EXTI R
I
External audio input right channel
40
EXTI L
I
External audio input left channel
41
V REF2
I
Analog reference voltage digital-to-analog converter and operational amplifiers
42
N.C.
–
Not used
43
VDD A3
–
Analog power supply 5V; operational amplifiers
44
VSS A3
–
Analog ground; operational amplifiers
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