1-10
1.7 SYSCON CIRCUIT
1.7.1 Syscon CPU pin function (IC3001) [HR-J677MS, HR-J777MS]
PIN NO.
LABEL
IN/OUT
FUNCTION
1
CTL(+)
IN/OUT
CTL(+)SIGNAL
2
SVSS
-
GND
3
CTL(-)
IN/OUT
CTL(-)SIGNAL
4
CTLBIAS
-
CTL BIAS VOLTAGE
5
CTLFB
-
NC
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
-
SYSTEM POWER FOR ANALOG CIRCUIT
11
IND(L)
IN
AUDIO INPUT (LCH) FOR THE FDP AUDIO INDICATOR
12
IND(R)
IN
AUDIO INPUT (RCH) FOR THE FDP AUDIO INDICATOR
13
NORM/MESEC/S
IN
NORMAL MODE:L/MESECAM MODE:M/NC
14
A.ENV/ND(L)
IN
AUDIO PB FM ENV.INPUT/NON HiFi MODE:L
15
END SENSOR
IN
END SENSOR
16
NC
-
NC
17
START SENSOR
IN
START SENSOR
18
NC
-
NC
19
SCR ID
-
NC
20
VIDEO ENV
IN
AUTO TRACKING DETECT/INPUT THE AVERAGE OF PLAYBACK VIDEO SIGNAL
21
RF AGC
-
NC
22
AFC
IN
TUNING LOCK
23
AVSS
-
GND FOR ANALOG CIRCUIT
24
CTL GAIN
OUT
CONTROL AMP OUT FREQUENCY RESPONSE SWITCHING
25
CAP REV(L)
OUT
CAPSTAN MOTOR REVERSE CONTROL (FWD:H/REV:L)
26
LSB
IN
MECHANISM MODE DETECT(B)
27
LSC
IN
MECHANISM MODE DETECT(C)
28
LSA
IN
MECHANISM MODE DETECT(A)
29
RC
IN
REMOTE CONTROL DATA INPUT
30
PROTECT
IN
DETECTION SIGNAL FOR SW POWER SUPPLY
31
PROJECT 50 IN
-
NC
32
POWER DET
IN
DETECTION SIGNAL FOR POWER DOWN OF AC POWER SUPPLY
33
PROJECT 50 OUT
-
NC
34
STB/TEST
OUT
STROBE SIGNAL (FOR FDP DRIVER)
35
LMC1
OUT
LOADING MOTOR DRIVE(1)
36
LMC2
OUT
LOADING MOTOR DRIVE(2)
37
LMC3
OUT
LOADING MOTOR DRIVE(3)
38
P.CTL(H)
OUT
CONTROL SIGNAL FOR SWITCHING POWER SUPPLY
39
P.SAVE(L)
-
NC
40
V_UP(H)
-
NC
41
SIDE BAND GAIN
OUT
VOLTAGE CONTROL SIGNAL FOR VIDEO FREQUENCY RESPONSE
42
NC
-
NC
43
VSS
-
GND
44
SAT_CTL
-
NC
45
VCC
-
SYSTEM POWER
46
JSA
-
NC
47
JSB
-
NC
48
REC SAFETY
IN
REC SAFETY SWITCH DETECT (SW ON:L)
49
I2C DATA
IN/OUT
SERIAL DATA TRANSFER OUTPUT
50
I2C CLK
OUT
SERIAL DATA TRANSFER CLOCK
51
S.DATA TOSYS
IN
SERIAL DATA TRANSFER OUTPUT TO THE FDP DRIVER
52
S.DATA FRSYS
OUT
SERIAL DATA TRANSFER OUTPUT TO THE ON-SCREEN IC
53
S.CLK
OUT
SERIAL DATA TRANSMISSION CLOCK FROM THE FDP DRIVER TO THE
ON-SCREEN IC
54
SP FG
IN
DETECTION SIGNAL FOR SUPPLY REEL ROTATION/TAPE REMAIN
55
SW2
OUT
TUNER SYSTEM ”L” MODE:L
56
LOCK(L)
IN
TUNING PLL LOCK DETECT:L
www.freeservicemanuals.info
4/5/2017
Digitized in Heiloo Netherland
