Video Block Diagram - Sony SLV-GA30 Service Manual

SLV-GA30/GA50/GA66/GA70K/GA77K/GF80/GF90K/GF99K/P66/PH99

3-2. VIDEO BLOCK DIAGRAM

CN101 3 REC/PB
MA-336 BOARD (SEE PAGE 4-5)
CN101
5Vp-p V SW P
25Hz 3
FOR
CN101 2 PB
CHECK
PB RF
2
DRUM
VIDEO
CN102
0.1V/div 0.2µsec/div HEAD
6 89
SP
SP1
CH1
5 88
SP1
2 86
SP
SP2
CH2
1 87
SP2
IC101 *§, *ª REC
0.5V/div 0.1µsec/div
CNJ801
VIDEO
IN 1
CNJ651
CN202
CN651
V IN2
VIDEO
1 1 30
IN 2
JK-166
BOARD
28
(SEE PAGE
4-26) GA66/GA77K
GF80/GF90K/GF99K/PH99
MODEL
16
Q102
IC101
BUFF VIDEO
REC/PB AMP
Y/C PROCESSOR
81 79 78 84 97
DRUM FF
ENV
HPF
DET
SW28
REC
SW30
MUTE
SW20
P
SW29 ACC
SP R
SP SW27
CTL TRAP
fH HPF
VCA
REC
MUTE
SW19
SEP
HPF
COMP
LPF
R P
SW7
629
TRAP
2FL
4 PHASE
1/2
VCO
GEN
FM
AGC
P EQ
SW8
ATT MMS
31
(-10dB) DL
G EQ DLIM DEMO
ATT VIDEO
(-10dB) AGC
1M 7M
LPF
HPF LPF
ATT
(-10dB)
CR DET
2fSC
X-TAL REC
VCO/OSC APC
PB
IC101 &¡ REC/PB
APC
REC
0.1Vp-p
AFC
3.579545MHz
75 73 71 76
IC101 &∞ REC/PB
X101 X102
4.43MHz 3.58MHz
0.54Vp-p
4.433619MHz
IC101 &£ REC/PB
EXCEPT GA77K:PL/GF99K:PL MODEL
Q101 Q101
4.433619MHz 0.66Vp-p
3-3
IC101 %∞ PB
0.58Vp-p
H
SW21
R
B.D N P CK 55
P
IC101 %• REC/PB
SW18
P
TRAP
R
SW24
H REC:0.4Vp-p
P
C
PB:0.5Vp-p
LPF
R
MIX
C.K B.E
LEVEL
MAIN CCD
SW25
CONV.1 LPF
R SW26
DL
P P
DL VCA
R
MAIN
C
CONV.2
LPF
R
SW23
P
R
SW22
P
SUB MAIN
LPF DE-EMPH
SW10
MAIN EMPH P
FM Y
CARRIER
MODE LPF
R SW11
OFFSET W.C/DC
R
SW13 P
SW5 P
N.L.
R R DE EMPH
SW17
N.L.
R P
EMPH
D.E.
N.C.
FBC/
ALC
IC101 !• REC/PB
REC:0.4Vp-p
H
PB:0.48Vp-p
PULSE
GEN.
16 18
Q104 Q103
Q204
PAL
RF SW P IC201 24
V ENV IC201 13
MESECAM IC201 80
QVD IC201 27
IC101 %™ REC/PB
EXCEPT
GA77K:PL/
GF99K:PL
H
REC:2.2Vp-p
PB:2.3Vp-p
Q215,216
6dB C 6dB
54 52 BUFF
AMP SQUELCH AMP
Q205,214
CLEAR
2fSC
SYNC
AMP
VIDEO
SQUELCH 51
ALC
IC101 #∞ REC/PB
58 35
H
IC101 $§ REC/PB
C
60 46
CCD
H
IC101 ^º REC/PB
23 24 LPF 26 39
Y
H
CCD
21 42
CLOCK 44
IC101 #ª REC/PB
IC101 $™ REC/PB
REC:0.5Vp-p
H
PB:0.6Vp-p
H
IC101 @¡ REC/PB
CLP
IC101 %º REC/PB
0.4Vp-p
H
Y NR
SW14
DO
SYNC
50 C SYNC
SEP
DO REC
CLP
IC101 ^ª REC/PB
69
8.667MHz
63 V DATA
SERIAL
CONT
62 V CLOCK
KILL 64 KILL
17 19
Q217-219
SHARPNESS
CONT
SHARP 1
SHARP 2
SHAPNESS IC201
NTSC
3-4
TO/FROM
RFU801
SYSCON
BLOCK
FROM
AUDIO RFU AUDIO 2 AUDIO
(SEE PAGE 3-5)
BLOCK
IN
(SEE PAGE 3-8)
4 TV/VTR
OUT
Q224,225
1 VIDEO
IC201 (1/3)
CNJ801
Q801
VIDEO
43 OSD 45 BUFF
OUT 1
IC201 $£$∞ REC/PB
52
53
2Vp-p
IC201 %£ REC/PB H
(SEE PAGE 4-26)
CNJ652
8.86716MHz 2.6Vp-p
CN651
V OUT2
VIDEO
3 3
OUT 2
CN202
JK-166
REC:0.41Vp-p
BOARD
PB:0.6Vp-p
GA66/GA77K/GF99K
MODEL
REC:0.28Vp-p
PB:0.35Vp-p
REC:0.28Vp-p
PB:0.35Vp-p
IC101 $¢ REC/PB
8.8671MHz 0.45Vp-p
REC:0.35Vp-p
PB:0.38Vp-p
4.6Vp-p
H
IC201 54
0.46Vp-p
IC201 100
IC201 99
TO/FROM
IC201 19
SYSCON
BLOCK
(SEE PAGE
3-5)
IC201 20
IC201 29
94
IC201 18