Video Block Diagram - Sony SLV-L49 Service Manual

SLV-L49/L52/L59/L69HF/L72HF/L79HF/L89HF/X55/X66HF

3-2. VIDEO BLOCK DIAGRAM

MA-341 BOARD
(SEE PAGE 4-7)
FROM
TU700 28
TUNER TU VIDEO
CJ561 TU701 28
BLOCK
LINE 1
IN
VIDEO
(SEE PAGE 4-24)
JK-168
BOARD
CJ801
LINE 2
CN801 CN423
IN
L2 V
1 1
IC201 @• REC/PB
VIDEO
IC260
VIDEO REC/PB AMP
DRUM
VIDEO CN260 PB
HEAD
11 16
SP
CH1
SW3
10
PB C SYNC
7 19
SP
CH2 RF ENV
ENV
6
DET
PB
9 24
EP
CH1 PB RF
8
COMP
PB
ENV SW
13 21
EP
CH2
HA
12
CONT
IC260 4 REC/PB HA SWP
REC
17
3.6Vp-p
V
RF SWP
AGC
DET
REC C
REC ATT
22
REC RF
AGC
REC H
1 12
REC CUR ADJ
CN270 TRICK H
PB RF
2
CHECK
RF SWP
PIN
3
IC260 @™ REC
0.1µsec/div
0.5V/div
16
IC201 #¶ REC
IC201
(1/2)
H 1.0Vp-p
Y/C PROCESSOR
39 CLP
VIDEO
37 CLP 32 31
AGC
35 CLP
SYNC
28
SEP
4.2Vp-p
H
IC260 7 PB
SW5V
0.4Vp-p
V
L270
IC201 1 PB
13
5
0.4Vp-p
6
R
ACC
AMP
P
R
C
LPF
P
7 1
2
FM SQPB
4
AGC EQ
S
PB
EQ
Q201 N
3
6 BUFFER 8
4
IC260 5 REC/PB
KIL
3.4Vp-p
H
REC C
10 2
REC Y RF
9 7
11 95 REC H
16 REC CUR ADJ
99 TRICK H
IC260 9 REC
IC201 7 REC
0.1µsec/div
50mV/div
0.1µsec/div
0.1V/div
3-3
IC201 @ª REC
H
IC160 42 ARC DATA
FROM IC160 41 ARC CLK
SYSCON
(SEE PAGE 3-5)
BLOCK
Q VD
IC160 13
IC201 @£ PB
H 480mVp-p
25
Q VD
CHARA 6dB
INS AMP
KIL
B.D
R
FBC 1/2
P
R
LPF YNR
P
Y/C
P R
MIX
R
PIC
P
CONT
DHP
NC
INV
N.L
De-EM
R
BPF1
P
BACK UP MAIN
BPF2
AMP CONV
Q202
R
SUB SUB
10 BUFFER
COMV. BPF
P
DOUBLE SUB
DEM
LPF
LIM
PB
BGA-B
PB
BGA-A
P
R
REC
BGA
IC201 2 REC
H 480mVp-p
REC FM MAIN N.L DETAIL
EQ MOD EMPH. EMPH. ENH
RF SW P
IC201 (•
REC/PB
SERIAL
DECODER
30Hz 1.5Vp-p
RF SWP HA SWP C ROT
98 97 96 21 20
I2C DATA IC160 72
I2C CLK IC160 71
C ROT IC160 15
C SYNC IC160 58
RF ENV IC160 8
(SEE PAGE 3-5)
ENV SW IC160 17
HA SWP IC160 16
RF SWP IC160 18
IC201 @ª PB
L52/L72HF/L89HF MODEL
H 2.3Vp-p
2.2Vp-p
AR-20
BOARD (SEE PAGE 4-25)
IC570
ARC
CN201
ARC DATA
2 2 10 DATA
ARC CLK
3 3 9 CLK
VIDEO IN
7 7 18 Y IN
C IN
5 5 20 C IN
VIDEO OUT
4
4 4 V OUT
IC160
(1/3)
OSD
JS202
29 50 OSD V IN OSD V OUT 52 BUFFER
Q502
OSD 56 C VIDEO IN
23
C218
24 L49/L59/L69HF/L79HF/
X55/X66HF MODEL
IC160 %§
IC160 %º OSD V IN REC
Q203
1H
43 46 47 BUFFER
DL
H
2.2Vp-p
IC160 %º OSD V IN PB
CLP
41
H
2.3Vp-p
CLK IN 50
61 53
1H/2H
59 55 52
DL
AMP 63
LPF
DL
EQ
17 CLP
IC201 ^¶ REC/PB
B
REC 3.579545MHz 460mVp-p
VXO1 67
PA APC
X201
3.579545MHz
66
65
VCO 62
60
SLD
FROM/TO
SYSCON
BLOCK
3-4
OSD V OUT
IC160 %™
REC
H 2.2Vp-p
IC160 %™ OSD V OUT PB
H 2.3Vp-p
CJ561
Q500 Q561
LINE
OUT
BUFFER
VIDEO
TU700 5 TO
RF VIDEO TUNER
TU701 5
BLOCK
(SEE PAGE 3-6)
C VIDEO IN
REC/PB
H 2.1Vp-p