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CPU PIN FUNCTION
<SYSCON IC3001>
PIN NO.
LABEL
IN/OUT
1
CTL(+)
IN/OUT CTL(+) SIGNAL
2
SVSS
-
GND
3
CTL(-)
IN/OUT CTL(-) SIGNAL
4
CTLBIAS
-
CTL BIAS VOLTAGE
5
CTLFB
IN
CTL PULSE FEEDBACK
6
CTLAMPOUT
OUT
CTL PULSE OUTPUT
7
CTLSMTIN
IN
CTL PULSE INPUT
8
CFG
IN
CAPSTAN FG PULSE INPUT
9
SVcc
-
SYSTEM POWER
10
Avcc
-
ANALOG POWER
11
LED
IN
DETECT THE HTS MODE
12
AFC
IN
TUNING CHECK
13
END SENSOR
IN
END SENSOR
14
KEY_IN1
-
NOT USED
15
KEY_IN2
-
NOT USED
16
A.ENV/ND(L)
IN
AUDIO PB FM ENV. INPUT/NON HiFi MODEL:L
17
START SENSOR
IN
START SENSOR
18
HS2_ENV
IN
AT DETECTION
19
VIDEO ENV
IN
AUTO TRACKING DETECT/INPUT THE AVERAGE OF PLAYBACK VIDEO SIGNAL
20
D/HS1_ENV
IN
PB FM INPUT / AT DETECTION
S.VHS MODE:H ( NORMAL MODE:L/MESECAM MODE:L/NC )
21
NORM/MESEC/S
IN
22
WAID_DET
IN
WIDE ASPECT DETECTION
23
Avss
-
GND FOR ANALOG CIRCUIT
24
CTL GAIN
OUT
CONTROL AMP OUT FREQUENCY RESPONSE SWITCHING
25
LSA
IN
MECHANISM MODE DETECT(A)
26
LSB
IN
MECHANISM MODE DETECT(B)
27
LSC
IN
MECHANISM MODE DETECT(C)
28
CAP REV(L)
OUT
CAPSTAN MOTOR REVERSE CONTROL (FWD:H/REV:L)
29
RC
IN
REMOTE CONTROL DATA INPUT
30
PROTECT
IN
DETECTION SIGNAL FOR SWITCHING POWER SUPPLY
31
EXP_DATA3
IN
NC/CONTROL SIGNAL FOR TV LINK/NC
32
PAUSE/COMPU_IN
IN
REMOTE PAUSE CONTROL/NC
33
COMPU_OUT/TEST_IN
OUT
CONTROL SIGNAL FOR TV LINK/MECHA TEST MODE
34
STB
OUT
STROBE SIGNAL
35
POWER_DET
IN
DETECTION SIGNAL FOR POWER DOWN OF AC POWER SUPPLY
36
LMC1
OUT
LOADING MOTOR DRIVE(1)
37
LMC2
OUT
LOADING MOTOR DRIVE(2)
38
LMC3
OUT
LOADING MOTOR DRIVE(3)
39
SB_GAIN
OUT
VOLTAGE CONTROL SIGNAL FOR VIDEO FREQUENCY RESPONSE
40
D_REC_LEVEL1
OUT
LEVEL1 CONTROL SIGNAL OF D-VHS RECORDING
41
D_REC_LEVEL2
OUT
LEVEL2 CONTROL SIGNAL OF D-VHS RECORDING
42
GR_ON(H)
OUT
GHOST REDUCTION MODE:H
43
Vss
-
GND
44
RMO
OUT
REMOTE CONTROL OUTPUT FOR SATELLITE RECEIVER
45
Vcc
-
SYSTEM POWER
SERIAL DATA TRANSFER OUTPUT FROM THE ON-SCREEN IC TO
46
S.DATA TOSYS
IN
THE FDP DRIVER
SERIAL DATA TRANSFER OUTPUT FROM THE FDP DRIVER TO
47
S.DATA FRSYS
OUT
THE ON-SCREEN IC
SERIAL DATA TRANSMISSION CLOCK FROM THE FDP DRIVER TO
48
S.CLK
OUT
THE ON-SCREEN IC
49
I2C DATA_AV
IN/OUT SERIAL DATA TRANSFER OUTPUT FOR THE VIDEO/AUDIO IC
50
I2C CLK_AV
OUT
SERIAL DATA TRANSFER CLOCK FOR THE VIDEO/AUDIO IC
51
K-BUS_IN
IN
SERIAL DATA INPUT FOR THE D-VHS HOST CPU
52
K-BUS_OUT
OUT
SERIAL DATA OUTPUT FOR THE D-VHS HOST CPU
53
K-BUS_CLK
OUT
SERIAL DATA TRANSMISSION CLOCK FOR THE D-VHS HOST CPU
54
SP FG
IN
DETECTION SIGNAL FOR SUPPLY REEL ROTATION/TAPE REMAIN
55
TU FG
IN
DETECTION SIGNAL FOR TAKE-UP REEL ROTATION/TAPE REMAIN
56
D_CASS(H)
IN
DETECTION SIGNAL FOR D-VHS CASSETTE (DERECTION:H)
PIN NO.
PIN NO.
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
LABEL
LABEL
IN/OUT
IN/OUT
K-BUS_REQ
OUT
REQUEST OF SERIAL DATA FOR THE D-VHS HOST CPU
REC SAFETY
IN
REC SAFETY SWITCH DETECT (SW ON:L)
JUST_CLK
IN
CLOCK ADJUST SIGNAL
TU_V_MUTE(H)
OUT
TUNER VIDEO MUTE CONTROL (MUTE: H)
S_CASS(H)
OUT
DETECTION FOR S-VHS CASSETTE(DETECTION:H)
FWE
-
NC
NMI
-
NC
X2
-
TIMER CLOCK(32kHz)
X1
-
TIMER CLOCK(32kHz)
RES
-
RESET TERMINAL (RESET ON:L)
OSC1(IN)
-
MAIN SYSTEM CLOCK (10MHZ)
Vss
-
GND
OSC2(OUT)
-
MAIN SYSTEM CLOCK (10MHZ)
Vcc
-
SYSTEM POWER
MODE
-
NC
SYNC_DET(L)
-
DETECTION OF VIDEO SYNC SIGNAL(DETECTION:L)
NC
-
NC
CH1_RECST(H)
OUT
REC START CONTROL FOR CH1
I2C CLK2
OUT
SERIAL DATA TRANSFER CLOCK FOR MEMORY IC
I2C DATA2
IN/OUT SERIAL DATA TRANSFER OUTPUT FOR MEMORY IC
AT_ON
OUT
D-VHS LS3 REC TIMING CONTROL
LS2_H_SEL
OUT
LS2 HEAD SELECT
FLY_ON (H)
OUT
FLY REC START: FH
LS2_FF
OUT
LS2 FF OUTPUT
CH2_RECST(H)
OUT
REC START CONTROL FOR CH2
Vcc
-
SYSTEM POWER
HS_RECST(H)
OUT
D-VHS HS RECORDING START
Vss
-
GND
SP_SHORT(L)
OUT
MODE SELECT
EP_SHORT(H)
OUT
MODE SELECT
H.REC_ST(H)
OUT
Hi-Fi AUDIO SOUND RECORDING START
N.REC_ST(H)
OUT
NORMAL AUDIO SOUND RECORDING START
A.MUTE(H)
OUT
AUDIO MUTE CONTROL (MUTE ON: H)
REF30
IN
REFERENCE SIGNAL INPUT (30HZ)
REF5
IN
REFERENCE SIGNAL INPUT (5HZ)
SERIAL DATA TRANSFER CLOCK FOR AUDIO/VIDEO AND TUNER/
EXP_CLK
OUT
REG CONTROL
EXP_DATA1
IN/OUT SERIAL DATA TRANSFER OUTPUT FOR AUDIO/VIDEO CONTROL
EXP_DATA2
IN/OUT SERIAL DATA TRANSFER OUTPUT FOR TUNER/REG CONTROL
NC
-
NC
AGC_CTL
OUT
AGC OUTPUT(AGC ON:H)
P.MUTE
OUT
PICTURE MUTE CONTROL(MUTE ON:H)
C.SYNC
IN
COMPOSITE SYNC
A.FF/HS2.FF
OUT
AUDIO FF OUTPUT
ROTATION DETECTION SIGNAL FOR DRUM MOTOR/TIMING
V.FF/STD.FF/HS1.FF
OUT
CONTROL SIGNAL FOR REC
CAPPWM
OUT
CAPSTAN MOTOR CONTROL
DRUMPWM
OUT
DRUM MOTOR CONTROL
SUB_CPU_RESET
OUT
RESET CONTROL FOR D-VHS HOST CPU
ET_REC(H)
OUT
S-VHS ET REC MODE:H
SEQP
OUT
SEQUENCE PULSE OUTPUT
HI_S_FF_REW
OUT
DETECTION OF HIGH SPEED FF/REW SIGNAL
DPG
IN
DRUM PICKUP PULSE INPUT (SWITCHING PULSE)
DFG
IN
DRUM FG PULSE INPUT
Vcc
-
SYSTEM POWER
V.PULSE
OUT
V.PULSE ADDITION TIMING CONTROL
Vss
-
GND
CTLREF
-
CTL REFERENCE VOLTAGE
FUNCTION
FUNCTION
2-54
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