System Control Block Diagram - Sony GV-A500 Service Manual

3-5. SYSTEM CONTROL BLOCK DIAGRAM

VC-197 BOARD
(SEE PAGE 4-41)
IC206 7 CK CONT
IC129 9 CS I/O
FROM
VIDEO 1 VC SCK
IC129 8
BLOCK
IC129 7 VC SO
(SEE PAGE 3-4)
EVR 3 DASTB
IC102 CK CONT
39
IC114 46 VC SCK
IC114 44 VC SO
IC114 43 VC SI
IC114 36 TBC VD
IC114 54 TBC VRST
IC114 55 SYS V
IC114 45 CS SYSTEM
IC114 53 RST SYSTEM
Q1008 FE ON
TO/FROM REC LP2
IC101 27
VIDEO 2
REC LP1
IC101 25
BLOCK
(SEE PAGE 3-7,3-9) IC101 24 REC SP1
IC101 23 REC SP2
IC101 21 SWP
IC106 68 1/2 SWP
Q1025 MP/ME
IC101 16 REC PB MODE
IC105 92 JOG VD
IC105 MECHA VD
90
IC105 MECHA FLD
89
C SYNC
IC105 27
IC109 59 VC SCK
IC109 60 VC SO
TO/FROM IC109 20 VC SI
AUDIO
BLOCK
IC109 31 SWP
(SEE PAGE 3-15)
IC109 58 CS AU
RP PB MODE
IC120 11
TO/FROM
IC120 19 VC SCK
SERVO
IC120 20 VC SO
BLOCK
(SEE PAGE 3-10)
Q1751 SP IN
TO
LCD Q804,813 HOLD
BLOCK
(SEE PAGE 3-20)
16
IC116 IC117
(1/2)
D3.2V
EEPROM SYSTEM CONTROL
2 SCK VCC 8
3 DI CS 37 CS EEPROM VC STBY
1
4 DO RST RST VC
6 36 WE EEPROM
CS VC
99 CK CONT
24 CS I/O HI SCK
HI SO
22 DASTB
MSWA
MSW B
MSW C
52 TBC VD
11 TBC VRST
AVREF
12 SYS V AVDD
23 CS SYSTEM
21 RST SYSTEM
2 FE ON
LOAD
94 REC LP2 UNLOAD
96 REC LP1 LM LMT CONT
93 REC SP1 LM LIM ON
95 REC SP2
4 SWP
3 1/2 SWP
5 RP PB MODE ME SW
HI8 MP SW
92 JOG VD
REC PROOF
51 MECHA VD
MECHA FLD
54
MECHA HD
53
IC117 (£(∞ REC TAPE TOP
3Vp-p
TAPE END
40msec (PAL)
33msec (NTSC)
25
CS AU
IC120 (1/2)
TAPE LED ON
SP/LP
22 8 SP DET
DET
29
CLOG
24 7 CLOG DET
DET
S REEL FG AD
IC119
T REEL FG AD
VC SCK
4 1,2
35
VC SCK
VC SO
VC SO
34
VC SI
VC SI
33 REEL HALL ON
91 LCD HOLD EXTAL
XTAL
3-13
SWP IC1952 63
SYS V IC1952 62
TO/FROM
MODE
31 VC STBY IC1952 11
CONTROL
38 VC RST IC1952 10
BLOCK
59 CS VC IC1952 22 (SEE PAGE 3-18)
62 HI SCK IC1952 35
60 HI SO IC1952 34
HI SI 61 HI SI IC1952 33
CC DOWN IC1952 18
14
15
16
EVER
3.15V
IC122
(1/4)
LOADING
VDD 42
MOTOR DRIVE
76
77 D3.2V 3 VCC1 VM 5 MT 5V
VDD 87
VPP 86 VTR UNREG 4 VCC2
OUT1 2
46 24 DEC1
DEC2
47 25
LIMIT ENABLE
98 26
LIMIT OUT OUT2
32 27 29
6
28
17
IC122 (2/4)
TAPE TOP/END
DETECTOR
TOP OUT TOP IN
49 14 13
50 17 END OUT END IN 16
MT5V
Q1854
LED
48
DRIVE
IC122 (3/4)
D3.2V
WAVE SHAPER
18
83 20
19
WAVE
SHAPER
21
72 23
22
27
41
X1751 IC117 $º REC/PB
20MHz
40
20MHz 3.2Vp-p (NTSC)
2.6Vp-p (PAL)
B-MECHA
S901
MODE SW
CN105
MSW A
7 7
MSW B
6 6
MSW C
5 5
LM +
1 1
LM +
2 2
M903
M
LOADING
LM
MOTOR
3 3
LM
4 4
S001
CN102 CC DOWN SW
C LOCK SW
2 2
MP/ME SW
10 10
HI8 MP SW
13 13
REC PRF SW
9 9
S002
TAPE TOP(C)
14 14
Q001
TAPE TOP
SENSOR
TAPE END(C)
8 8
Q002
TAPE END
SENSOR
TAPE LED(A)
7 7
D001
TAPE LED
TAPE LED(K)
2 2
D3.2V
3 3
H002
S REEL( )
12 12 H S REEL
S REEL(+)
SENSOR
11 11
H001
T REEL( )
5 5 H T REEL
T REEL(+) SENSOR
4 4
HALL COM
6 6
3-14
GV-A500/A500E