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System Control Block Diagram - JVC HR-J271MS Service Manual

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4.25

SYSTEM CONTROL BLOCK DIAGRAM

5
CAP MDA
CAP REV ( L )
M
CAP CTL V
CAP FG
CN1
DRUM MOTOR
DRUM CTL V
3
D.PG
2
D.FG
4
1
M
5 5
LOADING MOTOR
M
3
ROTARY
ENCODER
1 2
A/C HEAD
A/C HEAD
CN1
CTL HEAD
2
CTL
CTL HEAD
1
2
I2C DATA ( I2C DATA A/V )
I2C CLK ( I2C CLK A/V )
TO
VIDEO/AUDIO
VIDEO ENV
TO
V TO OSD
VIDEO/N.AUDIO
TO
V FROM OSD
TERMINAL
1
A
MAIN ( SYSCON )
0 3
CN3003 ( CN3001 )
6
3
2
CN3001 ( CN3002 )
3
4
5
PC3001
PHOTO
SENSOR
PC3002
IC3004 ( IC3002 )
PHOTO
( LOADING MOTOR
SENSOR
VOLTAGE CONTROL )
CN3002
( CN3003 )
LDM2
2
7
OUT 2
IN 2
2
LDM1
4
9
OUT 1
IN 1
1
1
DRIVE VOLTAGE
Vref
CONTROL
Q3001 ( Q3003 )
CN3004
LSB
1
LSC
2
LSA
3
CN2001
6
7
D.FF
V. PULSE
R201 , C203 , C205
VIDEO SECTION ( ON SCREEN )
ONLY USED FOR HR-J271MS , HR-J471MS
B
C
IC3001
( SYSTEM CONTROL MICRO PROCESSOR )
65 ( 40 )
25 ( 22 )
X1
CAP REV (L)
( XC IN )
64 ( 41 )
101 ( 33 )
X2
CAPPWM ( CAP CTL V )
8 ( 68 )
( XC OUT )
CFG ( C.FG IN )
69 ( 37 )
OSC2 ( OUT )
( X OUT )
67 ( 38 )
OSC1 ( IN )
102 ( 34 )
DRUMPWM ( DRUM CTL V )
( X IN )
107 ( 66 )
DPG ( D.PG IN )
108 ( 65 )
DFG ( D.FG IN )
48 ( 81 )
REC SAFETY
54 ( 1 )
SP FG
15 ( 85 )
END SENSOR
59 ( 2 )
TU FG
17 ( 79 )
START SENSOR
36 ( 11 )
LMC2
66 ( 25 )
35 ( 10 )
RES
LMC1
( RESET )
37 ( 60 )
LMC3
34 ( 95 )
STB
53 ( 96 )
S. CLK
51 ( 98 )
S DATA TOSYS
52 ( 97 )
S DATA FRSYS
26 ( 62 )
LSB
27 ( 63 )
60 ( 7 )
LSC
TU CLK
28 ( 61 )
61 ( 8 )
LSA
TU DATA
57 ( 9 )
TU CE
22 ( 86 )
AFC
56 ( 77 )
TP4001
LOCK ( L )
72 ( 31 )
CTL. P
TU A MUTE(H)
(TU MUTE(H))
76 ( 56 )
6 ( 76 )
I2C DATA2
CTL AMP OUT
(I2C
75 ( 57 )
DATA A/V)
I2C CLK2
3 ( 75 )
(I2C CLK A/V)
CTL -
1 ( 74 )
CTL +
49 ( 17 )
( SERIAL MEMORY )
I2C DATA
50 ( 18 )
78
I2C CLK/TEST
OSD CS
100 ( 23 )
77
V.FF ( D.FF )
SYNC DET ( H )
110 ( 24 )
93
P.MUTE ( L )
V. PULSE
20 ( 83 )
VIDEO ENV
( 50 )
87
LPF
SYN IN
H.REC ST ( H )
14
A.ENV/ND ( L )
99
A.FF
( 49 )
88 ( 35 )
CVIN
A.MUTE ( H )
104 ( 27 )
N.REC ST ( H )
( 47 )
105 ( 92 )
VIDEO OUT
N.REC ( H )
74 ( 58 )
MESECAM ( H )
90 ( 80 )
3.58NTSC ( H )
3.58NTSC ( L )
Digitized in Heiloo Netherlands
D
E
4-49
4-50
NOTE :
About IC Pin No. and Signal name
XXX : HR-J677MS , HR-J777MS
( XXX ) : HR-J271MS , HR-J471MS
X3002
C3025 ( C3018 )
TIMER CLOCK
TIMER CLOCK
( 32KHz )
X3001
MAIN SYSTEM
CLOCK
( 14.32MHz )
+5V
S3001 REC SAFETY SW
END
Q3003 ( Q3002 )
SENSOR
START
Q3002 ( Q3001 )
SENSOR
D3004
1
2
RESET
AL5.8V
IC3002 ( IC3003 )
3
( RESET )
6
SCL
ONLY USED FOR
5
HR-J677MS , HR-J777MS
SDA
IC3003 ( IC3004 )
F
1/21/2018
TO DISPLAY
STB
S CLK
S DATA TOSYS
S DATA FRSYS
TO TUNER
TU CLK
TU DATA
TU CE
AFC
LOCK ( L )
TU A MUTE ( H ) ( TU MUTE ( H ))
I2C DATA2 ( I2C DATA )
I2C CLK2 ( I2C CLK )
S.DATA FRSYS
S.CLK
TO
OSD CS
ON SCREEN
SYNC DET ( H )
P.MUTE ( L )
H.REC ST ( H )
A.ENV/ND ( L )
A.FF
A.MUTE ( H )
TO
N.REC ST ( H )
VIDEO/AUDIO
N.REC ( H )
MESECAM ( H )
3.58NTSC ( H )
3.58NTSC ( L )
G
H

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This manual is also suitable for:

Hr-j471msHr-j777msHr-j677ms

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