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Syscon Circuit; Syscon Cpu Pin Function (ic3001) [hr-j677ms, Hr-j777ms] - JVC HR-J271MS Service Manual

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1.7 SYSCON CIRCUIT

1.7.1 Syscon CPU pin function (IC3001) [HR-J677MS, HR-J777MS]

PIN NO.
LABEL
1
CTL(+)
2
SVSS
3
CTL(-)
4
CTLBIAS
5
CTLFB
6
CTLAMPOUT
7
CTLSMTIN
8
CFG
9
SVCC
10
AVCC
11
IND(L)
12
IND(R)
13
NORM/MESEC/S
14
A.ENV/ND(L)
15
END SENSOR
16
NC
17
START SENSOR
18
NC
19
SCR ID
20
VIDEO ENV
21
RF AGC
22
AFC
23
AVSS
24
CTL GAIN
25
CAP REV(L)
26
LSB
27
LSC
28
LSA
29
RC
30
PROTECT
31
PROJECT 50 IN
32
POWER DET
33
PROJECT 50 OUT
34
STB/TEST
35
LMC1
36
LMC2
37
LMC3
38
P.CTL(H)
39
P.SAVE(L)
40
V_UP(H)
41
SIDE BAND GAIN
42
NC
43
VSS
44
SAT_CTL
45
VCC
46
JSA
47
JSB
48
REC SAFETY
49
I2C DATA
50
I2C CLK
51
S.DATA TOSYS
52
S.DATA FRSYS
53
S.CLK
54
SP FG
55
SW2
56
LOCK(L)
1-10
IN/OUT
IN/OUT
CTL(+)SIGNAL
-
GND
IN/OUT
CTL(-)SIGNAL
-
CTL BIAS VOLTAGE
-
NC
OUT
CTL PULSE OUTPUT
IN
CTL PULSE INPUT
IN
CAPSTAN FG PULSE INPUT
-
SYSTEM POWER
-
SYSTEM POWER FOR ANALOG CIRCUIT
IN
AUDIO INPUT (LCH) FOR THE FDP AUDIO INDICATOR
IN
AUDIO INPUT (RCH) FOR THE FDP AUDIO INDICATOR
IN
NORMAL MODE:L/MESECAM MODE:M/NC
IN
AUDIO PB FM ENV.INPUT/NON HiFi MODE:L
IN
END SENSOR
-
NC
IN
START SENSOR
-
NC
-
NC
IN
AUTO TRACKING DETECT/INPUT THE AVERAGE OF PLAYBACK VIDEO SIGNAL
-
NC
IN
TUNING LOCK
-
GND FOR ANALOG CIRCUIT
OUT
CONTROL AMP OUT FREQUENCY RESPONSE SWITCHING
OUT
CAPSTAN MOTOR REVERSE CONTROL (FWD:H/REV:L)
IN
MECHANISM MODE DETECT(B)
IN
MECHANISM MODE DETECT(C)
IN
MECHANISM MODE DETECT(A)
IN
REMOTE CONTROL DATA INPUT
IN
DETECTION SIGNAL FOR SW POWER SUPPLY
-
NC
IN
DETECTION SIGNAL FOR POWER DOWN OF AC POWER SUPPLY
-
NC
OUT
STROBE SIGNAL (FOR FDP DRIVER)
OUT
LOADING MOTOR DRIVE(1)
OUT
LOADING MOTOR DRIVE(2)
OUT
LOADING MOTOR DRIVE(3)
OUT
CONTROL SIGNAL FOR SWITCHING POWER SUPPLY
-
NC
-
NC
OUT
VOLTAGE CONTROL SIGNAL FOR VIDEO FREQUENCY RESPONSE
-
NC
-
GND
-
NC
-
SYSTEM POWER
-
NC
-
NC
IN
REC SAFETY SWITCH DETECT (SW ON:L)
IN/OUT
SERIAL DATA TRANSFER OUTPUT
OUT
SERIAL DATA TRANSFER CLOCK
IN
SERIAL DATA TRANSFER OUTPUT TO THE FDP DRIVER
OUT
SERIAL DATA TRANSFER OUTPUT TO THE ON-SCREEN IC
OUT
SERIAL DATA TRANSMISSION CLOCK FROM THE FDP DRIVER TO THE
ON-SCREEN IC
IN
DETECTION SIGNAL FOR SUPPLY REEL ROTATION/TAPE REMAIN
OUT
TUNER SYSTEM "L" MODE:L
IN
TUNING PLL LOCK DETECT:L
Digitized in Heiloo Netherlands
FUNCTION
1/21/2018

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This manual is also suitable for:

Hr-j471msHr-j777msHr-j677ms

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