Sony SLV-L56AR, Service Manual

Page: 26 / 134

SLV-L56/L76HF/L86HF
3-5 3-6
3-3. VIDEO (2) BLOCK DIAGRAM
S/H
S/H
CLK
VIDEO(1)
SEE PAGE
3-4
6
4
78 77 75 74 62 71 70 68 66 65 63
6 3
5
8 1
4
7
9
11
13
15
16
17
18
19
24 28 30 26
+
+
+
+
MA-323
BOARD (2/6)
(SEE PAGE 4-11, 17, 23)
IC202
1H CCD DELAY LINE
CCD
CCD
PB RF
REC RF
COMP SYNC
C ROT
Q209
L204
C218 L213
C265
L211
C262
10MHz
TRAP
70kHz
TRAP
1.1MHz
TRAP
COMP SYNC
LP.EP
Q202 Q203
REC
MODE
SWITCH
REC
MODE
SWITCH
Q207
05
VSDATA
VCLK
IC201
SW1
ME.SECAM S-Det
Y/C PROCESS
Q201
EMPH
SWITCH
Q206
EMPH
SWITCH
fo/Dev Adj
S-DET
Main
De-emph
main Emph
Carriar Offset
W.C/DC
FM MOD
FM AGC
P.
EQ
P
R
SW14
629
TRAP
1MHPF AMP 7MLPF
LAGREAD
LPF
SDL
S
N
SW13 G.
EQ
DET
DLIM DEMO
Sub LPF
FBC/ALC
P R
SW15
DOC
Pictur
Cont
Clamp YNR
DO/REC
DO
SW6
0.4Vpp
0.5Vpp
SW5
R P
SW11 P
R
SSB
N.C
D.E
Y.LPF (NTSC/PAL)
P R
SW10
NL
Emph
NL
De.Emph
DO
Det
Edge
Dely
R
SW21
R
P
SW18
SW19
HPF
HiFi
TRAP
HPF
fh TRAP
ACC
R
P
R
P
NP conv
REC
APC
SW1
Main
Conv1
Main
Conv2
2M LPF
1.3M
LPF
1.3M LPF
Delay 150n
SW20
DELAY
THROUGH
P
R SW12
VCA
LEVEL Det1
LEVEL Det2
2.2M
LPF
SW30/25
B.Em
C.K
Senal Cont
Intertase
NTSC/PAL
N.P CONT OUT
1/2
2fl VCO
4phase Gen
CR Det
2fsc
ME
SECAM
DET
PB/REC
Disori
REC
AFC
REC
APC
PB
APC
Clock
Xtal
VCO/OSC
X201
3.579545MHz
X202
3.582056MHz
Color Killer
ID Det
DOWN
Conv
1/2
phase SW
61
7
3
1
2
4
60
43
64
18
52
53
45
57
56
55
53
50
49
22
Clamp
LPF
ATT
(–10dB)
ATT
(–10dB)
SW7
SSB
1.0Vpp
REC
AGC Det
PBALC
Video AGC
P R
SW8
0.5Vpp
CLEAR
SYNC
Sync Sep
6dB AMP
6dB AMP
Y.SQUELCH
C.SQUELCH
Q210
SWITCH
PAL-N
LP.EP
PAL-N
LP.EP
PAL-N
C-KILL
Killer
DET OUT
BPF
B.De
emph
N P
Color
Killer
ME.SECAM
REC
C.OUT
SW17
SW16
C-KILL
COMP
SYNC
Q204 Q205
Q104
QVD
PAL-N
NTSC
Feed Back
Clamp
Video ALC
Q400
PICT CONT
PAL-N
L86HF
IC203
VIDEO INPUT SELECT
AV IN SEL1
AV IN SEL2
JS201
L56/L76HF
SERVO/SYSTEM
CONTROL
SEE PAGE
3-7
TUNER
SEE PAGE
3-11
CN423 CN407
L2 VIDEO
TU VIDEO
5 5
LINE 2 VIDEO
MF-312
BOARD (1/3)
(SEE PAGE 4-34)
MOD V
J481
VIDEO
LINE-2
IN
VIDEO
VIDEO
CNJ901
LINE-1
IN
LINE
OUT
Q901
BUFFER
IC161 (1/2)
SYSTEM CONTROL
(ON SCREEN DESPLAY)
CV.OUT
CV.IN
BLUE BACK
PAL-N
4fsc OUT
4fsc IN
Q402
BLUE BACK
SWITCH
X401
17.734475MHz
TRAP TRAP
NTSC 3.58
PICT CONT
C KILLER DET
QVD
COMP SYNC
VSDATA (SSB)
VCLK (SSB)
LP.EP
PICT CONT
QVD
COMP SYNC
VSDATA
VCLK
LP.EP
SERVO/SYSTEM
CONTROL
SEE PAGE
3-7
MODE CONTROL
SEE PAGE
3-14
AUDIO
SEE PAGE
3-9
VIDEO
BUFFER
Q211
REC
MODE
SWITCH
NTSC
IC201
4
PB
840mVp-p(H)
IC201
7
PB
840mVp-p(H)
IC201
6
REC
400mVp-p(H)
IC201
!∞
REC
370mVp-p(H)
IC201
@§
REC/PB
1.1Vp-p(3.57945MHz)
IC202
8
REC/PB
REC:250mVp-p(H)
PB:300mVp-p(H)
IC202
1
REC/PB
REC:400mVp-p(H)
PB:500mVp-p(H)
IC202
4
REC/PB
560mVp-p(H)
IC202
5
REC/PB
360mVp-p(H)
IC201
&¶
REC/PB
1Vp-p(H)
IC201
&¡
REC/PB
440mVp-p(H)
IC201
#º
REC/PB
1.1Vp-p(3.582056MHz)
IC201
%º
PB
640mVp-p(H)
IC201
%£
REC/PB
5Vp-p(H)
IC161
%™
REC/PB
2.4Vp-p(17.734475MHz)
IC161
$£
,
$∞
REC/PB
2Vp-p(H)
IC201 %¶ REC/PB
2.2Vp-p(H)
IC201
^º/
REC
Pulse
Gen
REC:470mVp-p(H)
PB:260mVp-p(H)