Video Block Diagram 2 - Sony GV-A500 Service Manual

3-3. VIDEO BLOCK DIAGRAM 2

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