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Always 5V
No.
Name
VO! HL;
Signal Function
GND
-|-
Ground terminal
VDD2
OPEN
AFCC
T REEL P
Pulse signal from take up reel moving sensor.
AFCLPF
S REEL P
Pulse signal from supply up reel moving sensor.
N.C.
REMOCON IN
Remote control signal input.
ML-D
Loading motor rotation indication signal.
{Load "H", Brake "M", Unload "L"}
ML-S
Loading motor rotation speed indication signal.
{High "H", Middle "M', Low "L")
FLSTART +
SAFETY
Switch input indicating start of cassette loading or
discharge by cassette mechanism and detecting
accidental erasure prevention tab of cassette tape.
swo
Data indicating operation position of mechanism.
POWER UP
High output except when power is off.
swi
Data indicating operation position of mechanism.
swe
Data indicating operation position of mechanism.
REMOCON OUT
FLD SCLK
Clock pulse for FLD display drive IC,
FLD SDIN
FLD SDOT
Data signal input from FLO display drive IC,
Data signa! output to FLD display drive IC,
12 DAT
Control signa! output to tuner, video-audio and
HiFi audio {C.
120 CLK
Clock signal output to tuner, video-audio and HiFi
audio IC.
N.C,
MC F/R
Capstan motor rotation (normal/reverse) indication
signal. (reverse H)}
CM SKIP P
TU AD MUTE
Signal disable tuner audio signal output.
RF SW P
RF switching pulse created by head drum PG.
QvD
Quasi vertical synchronizing signal.
25
RESET
Initial reset terminal for this IC.
26
CM SKIP IN
27
FLO CS
Chip select signal to FLD display drive IC.
28
TU C-SYNC
Composite synchronizing signal input.
29
CLK ADJ
30
AF SW P
AF switching pulse created by head drum PG.
31
N.C.
32
N.C.
33
MC-PWM
Output of capstan motor servo control signal.
(PWM signal)
34
MH-PWM
Output of head drum motor servo contro! signal.
{PWM signal}
N.C.
TN CLK
Clock signal to control MTS and NICAM decoder.
TN DATA
Data signal to control MTS and NICAM decoder.
VSC DATA
Data to VSC(DMSS) control.
VSC CLK
Clock to VSC(DMSS) control.
REC H
Signal to indicate recording mode.
VD MUTE
Signal disable video signal output.
YCA MUTE
Signa! disable video or audio signal output.
ALT OFF H.
O9/O}O/O];O/0/0/0
Signat to switch the time-constant of APC circuit
while special play mode.
GND
Ground
DFG SIG IN
Head drum FG pulse input.
PG SIG IN
Head drum PG(phase) pulse input.
FG OUT
Head drum FG amp output.
CFG SIG IN
Capstan FG pulse input.
AMP BIAS
O10}
0/0]
-|—
Bias voltage for DFG amp.
Ground terminal.
Always 5V.
Control pulse 1/0.
co
Control pulse 1/0.
ROM OP
AD MUTE
Signal disable audio signal output.
Power failure detection circuit.
Tuner AFT S-curve signal for tuner AFT control.
HiFi audio head envelope detection signal input.
Video head envelope detection signal input for
ATR function.
Detect the system of RF out. (PALI H)
35
Q SOUND H
Signal to indicate "Q sound" is on.
Detect the system of RF out. (PALDK H)
Sensor signal input for tape beginning detection.
36
VDD
Back up 5V
Sensor signal input for tape end detection.
OSCO
Osc!
IC clock OSC terminal.
14.318MHz
H during normal audio recording.
VSS
Ground terminal
xl
xo
IC timer clock OSC terminal.
32.768KH2
voD
1C301
PIN 23
REC/PB
2Vidiv.
10ms/div.
16301
PIN 24
STILL
2Vidiv.
10ms/div.
16301
PIN 24
STILL
V LOCK
2Vidiv.
200us/div.
16301
PIN 28
REC/PB
2Vidiv.
20us/div.
10301
PIN 33,34
REC/PB
2V/div.
5us/div.
V STEREO H
PB-L
Q SOUND SUPER
VD IN FILTER
Signal for indicating playback mode.
Signal for indicating "Q sound" effect is strong.
Video output signal from on screen display circuit.
Ground terminal.
Video input signal to on screen display circuit.
Video input signal to on screen display circuit and
servo circuit.
500mV/div.
500us/div.
1C301
PIN 66
REC/PB
100mV/div.
10ms/div.
16301
PIN 67
REC/PB
CFG OUT
200mV/div.
500 us/div.
16301
PIN 74
REC
1V/div.
20ms/div.
—16—
CH+ mode control signal input. (CH+ model)
AVCTL (SY)
AV control signal output.
PS CTL
Power save control signal output.
WAVEFOR
Video head CH1/CH2 confirmation signal. Used in
the processing of image circuit color signals.
R3067
Q3007
TAPE REMAIN "aster ce
23.
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On,
IR3064
22K
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[_ALWAYS 5, 8VCLED!
ALWAYS 5. 8V¢LED:
ALWAYS SVC1>
GND jh,
33787
20
ALWAYS
SVC1>
ALWAYS
SYC2.
SWD SV
ALWAYS SVC2)
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TO PW-A
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POWER CTL
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SWOCPS) 13¥
GND (MHD
GND (Cy ML?
PS CTL
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HEATER+
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=:
HEATER- >»
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»
WF-S-AF4H-Z
5
6
7
8
10
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S6P5CH
11
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