Main Control Block Diagram - Hitachi VM-H675LA Service Manual

2. MAIN CONTROL BLOCK DIAGRAM

PG1301
20
ZOOM M
MOTOR
17
19
18
4
FOCUS
M
MOTOR
1
3
2
6
FOCUS
SENSOR
7
FOCUS
LED
15
ZOOM
SENSOR
ZOOM 16
LED
PG905
SD 1
TEST
PLUG RD 4
PG903
Q701
4
TALLY
5V
DRIVE
LED701
TALLY
6
SW702
7
CAM
5
SW701
VIDEO
IR
3
RECEIVER
IC701
[TYPE 675/575] PG552
1
DC
LIGHT
AUTO 4
ON
DC 5
3V
LIGHT
SWITCH
OFF
PG904
6
ZOOM T
ZOOM W
1
SUB POWER
(STANDBY)
4
REC
START
8
EJECT
PG736
LCD
2
REVERSE
SWITCH
PG5701 PG733
Q5303
8 8
LCD REVERSE
CONT.
1
2
IC1301
ZOOM MOTOR/FOCUS
MOTOR DRIVE
8 16 35
ZD-PWMA CS-EE
DRIVE CONT.
17
22
30
ZD OEB
19
10
DRIVE CONT.
20
18 34
ZD-PWMB
5 12 37
RD-PWMA CS-DAC
DRIVE CONT.
13
26
31
RD OEB LD-DSP
7 15
DRIVE CONT. SYS-CLK
24 36
14
RD-PWMB
41
FUS-SENS
39
ZOM-SENS
Q1301
LED DRIVE SYS-RESET
33
FCUS-LED
32
ZOOM-LED
76
SD
77
RD
44
96
CS-SYS
CLK CLK-CSD
45
97
TEMP-ADJ
DATA SDO-CSD
IC202
43
CSD/AGC &
98
CS CS-CSD
A/D CONV.
26
TALLY
Q570
Q571
94
LIGHT
D. L. ON
IC1104
SW
DIGITAL
µP
86
DCL-AUTO
89
DCL-MAN
46
ZOOM SW
8
LCD-REV KEY 1
7
LCD-OPEN NEAR-SW
13
BLC
FAR-SW
PG951 PG731
68 68
SW768
BLC
PG731 PG951
70 70 SW773
LCD
SW771
OPEN
FOCUS-F
28 28
SW770
SW772
EFFECT
FOCUS-N
CON
SW769
FADE
SW781 SW764 SW763 SW762 SW761
SW767 SW766
AE MENU TITLE DATE PLAY
REW FF
SW765
STOP
[TYPE 675]
3
MAIN CONTROL
IC1105 IC1111
EEPROM D/A CONV.
1 13
99
CS CLK
6 14
81
SCLK DI
SCK
5
79
SDO SI
80 2 12
SD1 SO LD
2
1
65
59
29 72
CAM+OSD
OSD CS
RESET
34
79
DSP RESET CLOCK
45
78
C CLOCK D. OUT
43 38
SYSTEM RESET
C-S DATA
76
44
S-C DATA V-DET
42
100
CS-SYS
28
VCR ON
D1301
49
69
LOAD
70
UNLOAD
57
TRACK ADJ.
5
TEST/NOR
61
RSS
IC901
SYSTEM 62
RST
CONTROL
µP
59
ESS
58
48
EST
93 27
END LED
16
92
STAGE
13
40
CAM SW
XTAL OUT
18
41
WAKE-UP
XTAL IN
14
53
VCR SW CASSETTE-SW
83
17
REMOCON ME/MP
12
19
M-SW 0
REC START
11
15
M-SW 1
EJECT
10
M-SW 2
66 66
84
TEX IN
64 64
85
TEX OUT
42 42
78 78 47
VCR KEY 2
46 46 56
VCR KEY 1
4 5
6 - 43
6 - 44 MAIN CONTROL
49
SDCK
3
DATA
47
S DATA
1
CLOCK
52
SDO
2
CS
48
LD
4
RESET
54
MCK 2
60 IC904
RESET CHARA.
GEN
IC201
VIDEO
DSP
Q901
Q902
RESET
PULSE
GEN.
IC671
LOADING
MOTOR DRIVE
PG604
4 1
DECODE
5 7
PG601
PG901
Q905
END LED
DRIVE
X901
12MHz
PG902
X902
32kHz
VCA
6
E
5 RESET
DET
IC902
BACK-UP
DET
4
CS
DET
29
STBY 3
IC551
PWM
30
STBY
D
1
LOADING
M
MOTOR
2
2 TRK ADJ.
TEST PLUG
6 T. PROG
C
7
SUPPLY REEL SENSOR
5
TAKE-UP REEL SENSOR
8
SUPPLY END SENSOR
1
TAKE-UP END SENSOR
2
END LED
12
STAGE
11
REC INH
10 B
Hi8MP
9
ME/MP
2
MECHANISM
4
STATE
(MODE)
SWITCH
3
A
7 8