Sony GV-A500E, Service Manual, Page: 26 / 127

GV-A500/A500E
3-3. VIDEO BLOCK DIAGRAM 2
3-7 3-8 3-9
TBC/CNR
PROC.
71
78
3
6
30
23
15
12
IY1-8 OY1-8
IC1-4 OC1-4
7 8 19 31
. . .
32 51 68
. . .
VDD1-7
D3.2V
65
67
66
16
52
50
17
18
IFLD
OVD
5
IVD
IHD
MCK
CL
OHD
OFLD
46
SCK
44
SI
45
SO
55
SYS V
11
CS
45 53
RST
36
54
TBC VD
VRSTL
VC SCK VC SO VC SI SYS V
CS SYS
RST SYS
TBC VD
52 IC117
VC SCK 4 IC119
VC SO 34 IC117
VC SI 33 IC117
SYS V
12 IC117
CS SYS
23 IC117
RST SYS
21
IC117
TBC V RST
11 IC117
SYSTEM
CONTROL
TO/FROM
BLOCK
IC114
8
4
65
67
66
23
25
24
MEM FLDI
MEM VDI
MEM HDI
96
97
95
SCK
SI
SO
100
86
98
SYS V
CS
RST
87
91
MCK
VCK
MCK
CL
VC SCK
VC SO
VC SI
SYS V
CS SYS
RST SYS
67 69
A OUT
15
22
6
13
99
75
40
14
..
.
68
63
59
..
8
8
DVDD1
DVDD4
AVDD1
AVDD3
YMO1-8
YMI1-8
Y
PROC.
D/A
A3.2V
D3.2V
71 60 62 66 54 55 56
VCO
16
CN207
Q1201
Q1202
VREF
(FOR CHECK)
OSCO
OSCI
AMPO
PDET1 PDET2 PDET3
23 EVR
18 EVR
AFC FO
FROM
VIDEO 1
BLOCK
VIFLDO
4
VIVDO
3
VIHDO
32
SHDO
30
YCORRY
39
DOC
36
VOB
37
VOW
41
49
85
76
33 CGVDO
34 CGHDO
35 CGCKO
57
AFCO
93 HEAD
92 JVDI
90 MECHA VD
89
FLD
27
CSYNC
94 MUTE
LOCK
AFC
LINE
YB1-9
AD1-10
IC105
SWP
JOG VD
MECHA VD
MECHA FLD
CSYNC
CGVD
CGHD
CGCK
67 42 BCLK
65
64
66
SCK
SI
SO
62
69
63 CS
RST
40 MCK
VXO
MCK
CL
VC SCK
VC SO
VC SI
SYS V
CS SYS
RST SYS
67 10
OUT E
83
70
53
41
..
.
10
8
VDD1
VDD6
C
PROC.
D/A
A3.2V
D3.2V
2 46 47 44 45 38
VIFLD
VIVD VIHD
SHD
YCORRY
DOP
23 RF
27 AGC SLOW
94 OFSC
26 AUDIO
IC106
58
59
MFLD
MVD
MHD
SYS V
98
71
.
43
VOB
MFLD
MHD 60
67 22
82
73
10
54
57
4
49
52
4
67 3
2
10
10
MCK 3 IC206
CL
6 IC206
AD1-10
IC203
19
BUFFER
TRAP 510
VTR
MEMCO
1-4
MEMCI
1-4
ADI
1-10
BUFFER
Q1220 Q1203
67
66
18
6
REXT R
REXT E
IC130
Q1221
17 EVR
16 EVR
C OUT 5 IC129
Y OUT
3
IC129
4FSC
35 IC129
FROM
VIDEO 1
BLOCK
MVD
94 MUTE
100
96
..
19 VCCD R
5 VCCD E
15 VCCA R
9 VCCA E
64
73
37
30
D/A
ADO1-10
REC I1-8
OUT R
14
29
SWP
68
HEAD CHG
1/2 SWP
SWP
62
SCK
65
SI
64
SO
66
SYS V
11
CS
61 60
RST
VC SCK VC SO VC SI SYS V
CS SYS
RST SYS
9
10
51
43
73
80
9
8
Y
PROC.
PLL
Q1018
BUFFER
Q1223,1224
MOD D/A
DEMOD
22
I/O1-9 MOD
23 31
.
AVDD
A3.2V
37 72
.
DVDD
BCK3.2V
71 25
VREF RF
13
20
PBO1-8 PBI1-8
8
16
9
A/D
8 PB REC 4
23
25
27
LINE
PB
11
7
19
5
6 18
AD
ADCK CONT
ADCK2
FRF2
38
41
40
1
AFC
TG
MCK
BCK
3
SWP
39
CK
SWP CK CONT
MEMHD
MEMO HD
58
VIHD
VIHD
59 4
DOP
DOP
IC102
6 26 17
A4.9V BCK3.2V
Q1151
IC103
8BIT A/D
PR RF
+B
PB +B RP4.9V
REC
EQ
BUFFER
Q1029 Q1037
Q1034
ME/MP
SW
Q1139
LPF 3
5
VC-197 BOARD
15
DOP
11
AGC TC
12 61
REC PCM
BPF
GCA
MIX AMP
AGC
11
7
PB C
REC Y
REC C
PBY
VREF BAD
Q1043
Q1045
27 EVR
FROM
VIDEO 1
BLOCK
PB C
36 IC203
C IN
44 IC129
CLK ERR Q1351,1353
PB/REC
41
IC203
28 EVR
25 EVR
10
IR CONT
14
DOC DET
8
Y LEVL MTG
6
LOW CONT
20
MT FQ
29
MT Q
FROM
VIDEO 1
BLOCK
24 26 33 34 35 36
EVR EVR EVR EVR EVR EVR
FROM
VIDEO 1
BLOCK
62
PCM REC
11
RAMP
28 4
DECK
64
AF
11
SP/LP
22 63
REC ATF
5
10
DOP
SP
RF AGC
SW
TIME
CONST
Q1036,1038
Q1136
PAL ONLY
1
AFM
13
AGC
9
E
PB RF
PEAKING
BUFFER
Q1041 Q1033,1135
PB RF
EQ
Q1030
E/L
SW
TRAP
Q1028
Q1026
Q1140
Q1044
Q1040
9
PB C
Q1100
PAL ONLY
RP MODE
SW
Q1014
PB C
AMP
Q1141
MUTE
Q1015
MUTE
Q1013
54
56
53
55
46
SW
REC
AMP
35
18
26
33
37
44
48
MUTE
MUTE
MUTE
MUTE
SW
REC
AMP
32
38
43
49
Q1010
Q1004
Q1011
Q1005
Q1009
Q1007
Q1012
Q1006
NTSC ONLY
2
4
10
12
CN101
16 ERASE
OSC
FLYING
Q1008
Q1001-1003,
SP2X
SP1X
LP1X
LP2X
ERASE
FLYING
HEAD
VIDEO
RP4.9V
L1002
L1005
VCC
19
17
16
PB RF
AMP
27
25
24
23
21
RP PB MODE
REC LP2
REC LP1
REC SP1
REC SP2
SWP
IC101
REC/PB AMP
PB PCM
PB RF
BUFFER
TO/FROM
AUDIO
BLOCK
6
1
2
7
15
3
CN207
PB RF
22
IC109
REC AFM 24 IC109
PB RF
REC ATF 13 IC120
TO/FROM
SERVO
BLOCK
68
63
59
MODE
CONTROL
FROM
BLOCK
SYS RST
9
IC1952
CS VSC 24 IC1952
HI SCK 35 IC1952
HI SO 34 IC1952
HI SI 33 IC1952
27
AF
PCM MOD
IC701
16
14
39
24
26
28
30
25
BUFFER
Q705
8 D3.2V
OSC
REF
MASK
VDD
CLR
CS
SCK
SI
SO
RF
45
42
44
47
5
46
REC
REC
RAMP
RAMP CONT
COMP
HD
CL
L704
L703
4
7
EQ
COMP
BUFFER
Q1138
AMP
Q701
BUFFER
Q702,703
MP/ME
SW
Q1025
Q704
RP4.9V
Q1016
SWP
TO/FROM
AUDIO
BLOCK
AU IN/OUT Q1493,1494
FSC 29 IC109
MODE
CONTROL
FROM
BLOCK
OSD SCK 46 IC1952
CS OSD 44 IC1952
OSD SO 45 IC1952
4
20
8
13
14
1
2
3
PCL
V SYNC
H SYNC
OSC
VBLK2
VC2
CLK
CS
DATA
CGVD
CGHD
CGCK
VOB2
VOW2
11
12
15
16
17
18
VBLK1
VC1
VBLK
VG
5 VDD
VR
VB
IC104
CHARACTER GENE.
D3.2V
VOB1 22 IC129
VOW1 20 IC129
VBO
12
IC129
VBO 12 IC803
CGR 9 IC803
CGG 4 IC803
CGB 1 IC803
CG VD Q811
TO
VIDEO 1
BLOCK
TO
LCD
BLOCK
94
FSC 31 IC111 7 IC361
SWP
FE ON 2 IC117
PB RF
PB PCM
REC RF
SWP
RF AGC IN
RF AGC OUT
(FOR CHECK)
REC LP2 94 IC117
REC LP1 96 IC117
REC SP1 93 IC117
REC SP2 95 IC117
REC PB MODE
5
IC117
MP/ME 6 IC117
CK CONT 99 IC117
C SYNC 53 IC117
MECHA FLD 54 IC117
MECHA VD 51 IC117
JOG VD 92 IC117
1/2 SWP 3 IC117
SWP 4 IC117
SYSTEM
CONTROL
TO/FROM
BLOCK
16
2 4
30 EVR SWP
SWP
.
.
Q1150
31 IC120
(SEE PAGE 4-23)
(SEE PAGE 3-4)
(SEE PAGE 3-5)
(SEE PAGE 3-4)
(SEE PAGE 3-4)
(SEE PAGE 3-15)
(SEE PAGE 3-10)
(SEE PAGE
3-13)
(SEE PAGE 3-15)
(SEE PAGE 3-4,5,6)
(SEE PAGE 3-20)
(SEE PAGE 3-18)
(SEE PAGE
3-18)
(SEE PAGE
3-4,5,6)
(SEE PAGE
3-13)
IC103
@∞
REC IC103
@∞
REC
IC103
@¶
PB
IC102
@™
REC
180msec
(PAL)
H
0.3Vp-p
(NTSC)
H
0.4Vp-p
(NTSC/PAL)
0.1
µ
sec
0.5Vp-p
(NTSC/PAL) V
IC106
!º
REC/PB IC106
!º
REC/PB
IC106
!¢
REC/PB IC106
!¢
REC
IC106
@ª
REC
0.4Vp-p
(PAL)
0.4Vp-p
(NTSC)
H
H
0.4Vp-p
(NTSC)
H
0.45Vp-p
(PAL)
H
3Vp-p
2V
IC106
$º
EE (PAL)
REC/PB (NTSC)
3Vp-p (PAL)
2.6Vp-p (NTSC)
14.18MHz (PAL)
14.318MHz (NTSC)
IC101
^¡
REC
0.3Vp-p
(NTSC/PAL)
V
IC101
^™
REC
3.2Vp-p
V
IC114
^∞
REC/PB
IC114
^§
REC/PB
2.8Vp-p
H
3Vp-p
(PAL)
V
IC105
#∞
REC
IC105
^ª
REC/PB
IC105
^ª
REC/PB
IC106
$§
REC/PB
IC105
$¶
REC/PB
3Vp-p
7.09MHz (PAL
7.16MHz (NTSC)
0.8Vp-p
(PAL)
H
1.0Vp-p
(NTSC)
H
3Vp-p
(PAL)
V
2.8Vp-p
H
IC101
3
REC
IC101
3
REC IC101
5
REC
IC101
7
PB IC101
7
PB
IC101
!¡
PB
IC101
$¢$•
PB
0.32Vp-p
(NTSC)
H
0.3Vp-p
(PAL)
H
0.4Vp-p
(NTSC/PAL)
0.1
µ
sec
0.18Vp-p
(PAL)
190mVp-p
(NTSC)
H
H
0.4Vp-p
(NTSC/PAL)
0.1
µ
sec
2Vp-p
(NTSC)
7Vp-p (PAL)
V
IC101
!¶
PB
6
IC101
@¡
REC/PB
0.3Vp-p
(NTSC/PAL)
V
3Vp-p
40msec (PAL)
33.3msec (NTSC)