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 Netherland
FUNCTION
4/5/2017