Sony GV-A500 Service Manual ▷ View online
GV-A500/A500E
3-2. VIDEO BLOCK DIAGRAM 1
3-4
3-5
3-6
IC129
5
REC/PB
IC129
5
REC/PB
IC129
3
REC/PB
@ª
IC129
!£
REC/PB
@ª
IC129
!£
REC/PB
#º
IC129
!∞
REC/PB
IC129
#∞
REC
IC129
$¢
REC
IC129
$¢
REC
IC129
$§
REC
IC129
$§
REC
IC129
%£
REC
IC129
%£
REC
0.4Vp-p
(PAL)
0.4Vp-p
(NTSC)
(NTSC)
H
0.5Vp-p
(NTSC)
H
0.35Vp-p
(PAL)
1Vp-p
(NTSC)
H
H
0.8Vp-p
17.7343MHz (PAL)
14.3181MHz (NTSC)
14.3181MHz (NTSC)
180msec
(PAL)
H
0.3Vp-p
(NTSC)
0.38Vp-p
(PAL)
H
0.4Vp-p
(PAL)
H
H
H
0.28Vp-p
(NTSC)
H
0.5Vp-p
(PAL)
0.52Vp-p
(NTSC)
H
H
IC361
$¡
PB
IC361
7
REC/PB
1Vp-p
(NTSC)
H
0.2Vp-p
3.58MHz (NTSC)
25
J102
BPF
4
7
10
1
2
IO-62
BOARD
FP-573
(FLEXIBLE)
CN103
CN002
4
7
10
1
2
5
8
11
1
2
CN001
Y I/O
C I/O
S JACK
V I/O
V JACK
6
7
12
1
2
CN107
VIDEO
FP-570
(FLEXIBLE)
CN203
2
19
13
2
19
13
V/Y IN
C IN
V OUT
EX-34
BOARD
CN204
3
20
1
2
19
13
V/Y IN
C IN
V OUT
ACCESSORY
TIRMINAL
BUFFER
IR TRANSMITTER
2
19
13
CN109
Q1309
Q1352
Q1354
Q1355
Q1350
11
64
1
51
AGC
LPF
58
60
62
AGC
49
TRAP
53
46
Y OUT
44
42
BURST
LOCK
TRAP
ADJ
22
20
12
35
3
LPF
BPF
DDS
DOS
YX
29
17
27
5
8
7
9
DOS
15
39
37
13
Y
V
C
V
9
CN207
(FOR CHECK)
XTAL
X1305
14.318MHz (NTSC)
EXTAL
CS
Y
C
SI
SCK
C IN
Y IN
4FSC
DOS B
MON DDS W1
MON DDS B1
IR CONT
BCL IN
C OUT
AGC CNT2
61
AGC CNT1
CLK ERR
71
C IN
VOB1
VOW1
VBO
Y OUT
C OUT
4FSC
IC102
25
IC103
11
IC104
12
IC104
15
IC104
2
IC130
Q1203
10
IC106
VIDEO 2
BLOCK
TO/FROM
IC129
Q1351,1353
Q1356,1357
Q1356,1357
SIGNAL SELECTOR
Q1305
S JACK IN
67
IC1952
MODE
CONTROL
TO
V JACK IN
66
IC1952
BLOCK
EZ V OUT
IC108
EVR D/A CONV.
43
12
13
14
2
1
3
20
44
46
45
47
EVR 20
EVR 44
EVR 46
EVR 45
EVR 47
21
EVR 21
18
EVR 18
17
EVR 17
16
EVR 16
37
AUDIO
BLOCK
TO
SERVO
BLOCK
TO
VIDEO 2
BLOCK
TO
31
SCK
V ON
SI
DA STB
IR CONT
AGC CONT1
AGC CONT2
SP VOL
1.5M DEV
1.7V DEV
AU BPF
AU FADE
CFG DUTY
VREF Y
VREF C REC
VREF C EE
(3V)
(5V)
8
29
D3.2V(VDD1)
A4.9V(VDD2)
A4.9V(VCC)
22
28
EVR 28
27
EVR 27
26
EVR 26
25
EVR 25
24
EVR 24
AGC RF CONT
FRQ TUNE
VREF BAD
DOC DET
VREF RF
RF AGC CONT
RP IR
36
EVR 36
35
EVR 35
34
EVR 34
33
EVR 33
30
EVR 30
MT Q
REC L CONT
MT FQ
REC Y/MT CONT
SWP
39
VIDEO CAR
40
VIDEO DEV
38
AUDIO DEV
A3.2V
A4.9V
VIDEO 2
BLOCK
TO
VC SCK
VC SO
DA STB
4
34
22
IC119
IC117
IC117
CS I/O
24
IC117
SYSTEM
CONTROL
FROM
BLOCK
63
47
LCD Y
5
IC801
LCD C
Q801,802
LCD
BLOCK
TO
2
4
1
2
3
5
CK Q
D Q
CLOCK DIVIDE
IC204
IC205
X1601
28.636363MHz(NTSC)
IC206
BUFFER
Q1605
CLP
CENTER
BIAS
AMP
PB
AGC
LINE
S/H
DRIVE
A/D
CONV.
12 17 33 43
2
11
.
.
.
34
36
41
16
35
10
RF CONT
REC/PB
D0-9
VDD
A3.2V
IC203
S/H,AGC
10BIT A/D CONV.
82
73
10
AD1-10
IC106
PB/REC
PB C
IC102
IC101
7
8
AMP
TRAP
BUFFER
Q1306
Q1307
Q1307
Q1360
Q1361
BUFFER
Q1362
8
28
17
29
13
12
10
31
32
CK CONT
99
IC117
5
3
7
IC112
HI SI
V DATA
SERIAL INTERFACE
IC111
SYNC
RESET
BUSY
CS
SCK
ADI
SDO
SYS RESET
9
IC1952
UVIC BUSY
68
IC1952
UVIC CS
23
IC1952
HI SCK
35
IC1952
34
IC1952
HI SI
33
IC1952
MODE
CONTROL
TO/FROM
BLOCK
OSC1
OSC2
MCK
IC114 52
CL
IC114 50
VIDEO 2
BLOCK
TO/FROM
SIRCS ENV
59
IC1952
SIRCS CAR
36
IC1952
IR ON
43
IC1952
Q351
SIGNAL
PROC.
VIDEO
MIX
SIGNAL
PROC.
AUDIO
14
41
35
39
46
7
48
45
27
HPF
25
16
15
22
STBY
AMP
18
DRV
24
IC106 94
FSC
IC361
FP-572
(FLEXIBLE)
4
3
IR EM
HP L
50
IC109
HP/LINE R
52
IC109
AUDIO
BLOCK
FROM
4
CN108
3
CN361
IR-29
BOARD
D362
D363
D363
MT5V
F361
VC-197 BOARD
16
S VIDEO
J103
23
EVR 23
AFC FO ADJ
HI SO
17.734475MHz (PAL)
28.375MHz (PAL)
6
3
1
2
5
7
D1602
LED
DRIVE
Q352,353
LED
DRIVE
Q365
(SEE PAGE 3-16)
(SEE PAGE
3-18)
3-18)
(SEE PAGE 3-7,8)
(SEE PAGE 3-10)
(SEE PAGE 3-7)
(SEE PAGE 3-15)
(SEE PAGE
3-13)
3-13)
(SEE PAGE 4-59)
(SEE PAGE 4-55)
(SEE PAGE 4-19)
(SEE PAGE 3-18)
(SEE PAGE 3-7,8)
(SEE PAGE 3-20)
(SEE PAGE 3-7,3-8)
(SEE PAGE 4-39)
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
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
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
SW
TRAP
Q1028
Q1026
Q1140
Q1044
Q1040
9
PB C
Q1100
PAL ONLY
RP MODE
SW
Q1014
PB C
AMP
AMP
Q1141
MUTE
Q1015
MUTE
Q1013
54
56
53
55
46
SW
REC
AMP
AMP
35
18
26
33
37
44
48
MUTE
MUTE
MUTE
MUTE
SW
REC
AMP
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)
3-13)
(SEE PAGE 3-15)
(SEE PAGE 3-4,5,6)
(SEE PAGE 3-20)
(SEE PAGE 3-18)
(SEE PAGE
3-18)
3-18)
(SEE PAGE
3-4,5,6)
3-4,5,6)
(SEE PAGE
3-13)
3-13)
IC103
@∞
REC
IC103
@∞
REC
IC103
@¶
PB
IC102
@™
REC
180msec
(PAL)
H
0.3Vp-p
(NTSC)
(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)
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)
7.16MHz (NTSC)
0.8Vp-p
(PAL)
(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)
(NTSC)
H
0.3Vp-p
(PAL)
(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)
33.3msec (NTSC)
GV-A500/A500E
3-4. SERVO BLOCK DIAGRAM
3-10
3-11
3-12
IC121
12@ª
REC/PB
1Vp-p
6.7msec (PAL)
5.6msec (NTSC)
5.6msec (NTSC)
IC117
$£
REC/PB
IC117
$¢
REC/PB
IC117
%§
REC/PB
IC117
%¶
REC/PB
IC117
%•
REC/PB
IC117
^¶
IC117
^ª
REC/PB
IC120
3
REC/PB
IC120
!£
REC
IC120
#¡
3Vp-p
26
µ
sec
3Vp-p
3Vp-p
3Vp-p
40msec (PAL)
34msec (NTSC)
34msec (NTSC)
3.33msec (PAL)
2.78msec (NTSC)
2.78msec (NTSC)
3Vp-p
5.86MHz (PAL)
5.94MHz (NTSC)
5.94MHz (NTSC)
0.4Vp-p
(NTSC)
V
0.35Vp-p
(NTSC/PAL)
5
µ
sec
26
µ
sec
3Vp-p
0.87msec (PAL)
1.2msec (NTSC)
1.2msec (NTSC)
1.7Vp-p
11.72MHz (PAL)
11.89MHz (NTSC)
11.89MHz (NTSC)
0.3Vp-p
V
IC120
2
REC/PB
0.4Vp-p
(NTSC)
V
IC121
!¡
REC/PB
IC121
!•
REC/PB
IC501
4
REC/PB
IC501
^¢
REC/PB
0.7Vp-p
506kHz
0.7Vp-p
506kHz
B-MECHA
VCC
CFG(+)
CFG( )
CAP FG
WAVE
SHAPER
IC001
(1/2)
3
12
11
3
2
1
FG
CAPSTAN FG
DRUM
RUM FG
FG/PG COM
DRUM PG
PG
3
12
11
3
2
1
CN104
D3.2V
CAP FG
OFFSET ADJ
(1/2)
IC121
(1/2)
CN103
WAVE
SHAPER
18
15
14
13
VREF
LPF
WAVE
SHAPER
15
11
DRUM FG/PG
WAVE SHAPER
VC-197 BOARD
57
56
44
DRUM PWM
DRUM FG
DRUM PG
IC117
(2/2)
SERVO CONTROL
LPF
8
10
12
9
7
6
0.22V
IC122
(4/4)
LPF
ERROR
AMP
9
10
Q1851
11
FRB
9
10
CN106
DRUM ERROR
CAP ERROR
SHORT CIRCUIT
PROTECT
LPF
21
22
10
12
11
16
17
14
SHORT CIRCUIT
PROTECT
9
VS
VCC1
7
SWITCHING
DRIVE
SWITCHING
DRIVE
PWM
PWM
64
4
29
30
63
5,6
OUTPUT
VTR UNREG
RT
CT
CN502
L505
L504
SWITCHING
Q501
SWITCHING
Q502
VTR UNREG
IC501
(2/2)
DRUM/CAPSTAN
PWM DRIVE
3
CN502
42
27
.
4
1
.
2
3
42
27
.
4
1
.
2
LCD DD ON
VTR DD ON
DRUM VS
CAP VS
CN106
OUTPUT
DRIVE
BUFFER
LCD DD ON
58
IC1952
OUTPUT
DRIVE
CONTROL
LOGIC
3
STBY
30
29
2
1
25
27
6
26
28
8
STBY
VTR UNREG
D3.2V
VCC2
COM
U IN
V IN
W IN
W
V
U
ICOM
R1851-1853
DRUM DRIVE
CURRENT SENS
IC121
(2/2)
DRUM
MOTOR DRIVE
VTR DD ON
29
IC1952
FROM
MODE
MODE
CONTROL
BLOCK
9
4
.
10
9
4
.
10
DRUM COM
DRUM U
7
.
8
7
.
8
DRUM V
5
.
6
5
.
6
DRUM W
CN104
B-MECHA
(2/2)
6
.
5
CN103
4
10
9
6
.
5
4
10
9
120
°
LOGIC
POWER
OFF
HE
POWER
M901
DRUM MOTOR
VTR UNREG
M902
H
H
H
H1 (+)
CAP U
CAP V
CAP W
VS
VCC
STBY
FRC
U IN1
U IN2
H1 ( )
VH +
VH
H1 (+)
H1 ( )
H1 (+)
H1 ( )
H1 (+)
H2 (+)
H2 ( )
H3 (+)
H3 ( )
H1 ( )
V IN1
V IN2
W IN1
W IN2
U
V
W
CAPSTAN
MOTOR
CAP VS
CAP ON
CAP FWD
43
CAP PWM
LPF
68
67
X1752
11.89MHz
OSC1
OSC0
66
REF PILOT
ATT
71
ATF ERR AD
1
DRUM ON
89
CAP ON
90
CAP FWD
69
ATF 5.9M
26
CS ATF
97
ATF STBY
FROM
VIDEO 1
BLOCK
CFG DUTY
21
EVR
58 CAP FG
30 CFG HMS
4
CAP FG
CN207
(FOR CHECK)
86 VDD VPP
76 AV REF
77 A VDD
42 VDD
87 VDD
EVER 3.15V
21 CS
MODULATOR
14 STBY
20 S IN
19 SCLK
11
FROM
VIDEO 2
BLOCK
TO/FROM
SYSTEM
CONTROL
BLOCK
31
13
LPF
VC SO
34
IC117
VC SCK
4
IC119
RP PB MODE
5
IC117
PBRF
17
IC101
REC ATF
63
IC101
REF PILOT
VREF
46kHz
BPF
LPF
AMP
17
5
CLK 5.9M
30
AVDD
18
DVDD
LPF
16kHz
BPF
9
2
3
LPF
7
6
8
D3.2V
L1753
10
IC120
ATF SERVO
(2/2)
16
4dB
AMP
SP IN
29
IC120(1/2)
PAL ONLY
(NTSC)
11.72MHz
(PAL)
Q1752,1753
DD-100 BOARD
(SEE PAGE 4-44)
(SEE PAGE 3-4)
(SEE PAGE 3-13)
(SEE PAGE 3-9)
(SEE PAGE 4-75)
(SEE PAGE 3-18)
GV-A500/A500E
3-5. SYSTEM CONTROL BLOCK DIAGRAM
3-13
3-14
IC117
(£(∞
REC
3Vp-p
40msec (PAL)
33msec (NTSC)
33msec (NTSC)
IC117
$º
REC/PB
3.2Vp-p (NTSC)
2.6Vp-p (PAL)
20MHz
DEC2
B-MECHA
99
IC117
CK CONT
7
IC206
TO/FROM
VIDEO 2
BLOCK
VC-197 BOARD
IC116
SYSTEM CONTROL
(1/2)
31
CK CONT
VC STBY
24 CS I/O
22 DASTB
15
MSW B
38
RST VC
59
CS VC
EEPROM
2 SCK
3 DI
4 DO
8
VCC
1
CS
6
RST
37 CS EEPROM
36 WE EEPROM
D3.2V
CS I/O
9
IC129
DASTB
3
EVR
VC SCK
8
IC129
VC SO
7
IC129
VC SCK
59
IC109
VC SO
60
IC109
VC SI
20
IC109
FROM
VIDEO 1
BLOCK
VC SCK
46
IC114
VC SO
44
IC114
VC SI
43
IC114
TBC VD
36
IC114
TBC VRST
54
IC114
SYS V
55
IC114
CS SYSTEM
45
IC114
RST SYSTEM
53
IC114
FE ON
Q1008
REC LP2
27
IC101
REC LP1
25
IC101
REC SP1
24
IC101
REC SP2
23
IC101
REC PB MODE
16
IC101
MP/ME
Q1025
SWP
21
IC101
1/2 SWP
68
IC106
JOG VD
92
IC105
MECHA VD
90
IC105
MECHA FLD
89
IC105
C SYNC
27
IC105
TO/FROM
SERVO
BLOCK
VC SCK
19
IC120
VC SO
20
IC120
RP PB MODE
11
IC120
SWP
31
IC109
CS AU
58
IC109
TO/FROM
AUDIO
BLOCK
BLOCK
SP IN
Q1751
IC120
(1/2)
SP/LP
DET
CLOG
DET
29
22
24
IC119
4
1,2
VC SCK
VC SO
VC SI
52
11
12
23
21
2
94
96
93
95
5
4
3
92
51
54
53
25
8
7
35
34
33
TBC VD
RP PB MODE
SWP
1/2 SWP
JOG VD
MECHA FLD
MECHA HD
MECHA VD
CS AU
SP DET
CLOG DET
VC SCK
VC SO
VC SI
REC LP2
REC LP1
REC SP1
REC SP2
FE ON
RST SYSTEM
CS SYSTEM
SYS V
TBC VRST
91 LCD HOLD
HOLD
Q804,813
TO
LCD
BLOCK
62
HI SCK
60
HI SO
61
HI SI
CC DOWN
18
IC1952
TO/FROM
MODE
CONTROL
BLOCK
14
MSWA
16
MSW C
42
VDD
28
HI8 MP SW
76
AVREF
77
AVDD
87
VDD
86
VPP
46
LOAD
47
UNLOAD
98
LM LMT CONT
32
LM LIM ON
4
VCC2
2
OUT1
EVER
3.15V
3.15V
3
D3.2V
24
25
26
27
5
VM
29
OUT2
IC122
(1/4)
LOADING
MOTOR DRIVE
MT 5V
VTR UNREG
VCC1
DEC1
LIMIT ENABLE
LIMIT OUT
83
S REEL FG AD
6
ME SW
17
REC PROOF
49
TAPE TOP
50
TAPE END
IC122
(2/4)
TAPE TOP/END
DETECTOR
14
13
TOP IN
TOP OUT
17
16
END IN
END OUT
IC122
(3/4)
WAVE
SHAPER
Q1854
48
TAPE LED ON
LED
DRIVE
20
23
22
21
18
19
72
T REEL FG AD
27
REEL HALL ON
WAVE SHAPER
41
EXTAL
HI SI
33
IC1952
HI SO
34
IC1952
HI SCK
35
IC1952
CS VC
22
IC1952
VC RST
10
IC1952
VC STBY
11
IC1952
SYS V
62
IC1952
SWP
63
IC1952
7
MSW A
CN105
6
1
2
3
4
5
7
6
1
2
3
4
5
2
C LOCK SW
CN102
14
8
2
14
8
10
13
9
10
13
9
7
7
5
5
4
4
6
6
3
3
11
11
12
12
2
2
M
CC DOWN SW
M903
LOADING
MOTOR
S901
MODE SW
S001
S002
Q001
TAPE TOP
SENSOR
Q002
TAPE END
SENSOR
D001
TAPE LED
H
H
MT5V
D3.2V
MSW C
MSW B
LM +
LM
LM +
LM
MP/ME SW
HI8 MP SW
REC PRF SW
TAPE TOP(C)
TAPE END(C)
TAPE LED(A)
TAPE LED(K)
D3.2V
S REEL( )
S REEL(+)
HALL COM
T REEL( )
T REEL(+)
H002
S REEL
SENSOR
H001
T REEL
SENSOR
40
XTAL
X1751
20MHz
16
CK CONT
39
IC102
(SEE PAGE 3-18)
(SEE PAGE 4-41)
(SEE PAGE 3-4)
(SEE PAGE 3-7,3-9)
(SEE PAGE 3-15)
(SEE PAGE 3-10)
(SEE PAGE 3-20)
Click on the first or last page to see other GV-A500 service manuals if exist.