Video Block Diagram - Sony SLV-789HF Service Manual

SLV-789HF/792HF/799HF

3-2. VIDEO BLOCK DIAGRAM

MA-342 BOARD (SEE PAGE 4-7,9)
FROM
TUNER
BLOCK TU701 28
TU VIDEO
CJ561
(SEE PAGE 3-6)
LINE 1
IN
VIDEO
(SEE PAGE 4-26)
MF-316
BOARD
CNJ491
LINE 2
CN491 CN423
IN
IC260 5 REC/PB
L2 V
1 1
VIDEO
3.4Vp-p
H
IC260
VIDEO REC/PB AMP
DRUM
VIDEO CN260 PB
HEAD
11 16
SP
13
CH1
10
PB 5
C SYNC
19
7
SP
CH2 RF ENV
ENV
6 6
DET
PB
9 24
EP
CH1 PB RF
8 7
COMP
PB
ENV SW
2
21
13
EP
CH2
HA
12
CONT
HA SWP
3
REC
17
RF SWP 4
AGC
DET
REC C
REC
ATF 10
22
REC RF
9
AGC
REC H 11
REC CUR ADJ 12
TRICK H 1
CN270
PB RF
2
CHECK
RF SWP
PIN
3
IC260 !¶ REC
0.1µsec/div
3.4Vp-p
1V/div
16
IC260 9 REC IC260 9 REC
0.1µsec/div 160mVp-p
50mV/div
0.7Vp-p
V
IC201 #¶ REC
1.0Vp-p
H
IC201 @£ PB
IC201 (1/2)
Y/C PROCESSOR
H 0.5Vp-p
39 CLP
VIDEO
37 CLP 32 31
AGC
35 CLP
R
SYNC
28
SEP P
IC201 @• REC/PB
IC201 1 PB
SW5V 4.2Vp-p
H
L270
0.7Vp-p
V
R
ACC BACK UP
AMP AMP
P
R
C
LPF
P
SUB
1
COMV.
FM SQPB
4
AGC EQ
S
PB FM
EQ AGC
Q201 N
6 AMP 8
KIL
REC C
2
REC Y RF
REC
7
EQ
95 REC H
16 REC CUR ADJ
99 TRICK H
RW SWP
1
IC260 4 REC/PB
IC201 7, REC 98
3.6Vp-p
V 0.1µsec/div
360mVp-p
0.1V/div
IC260 !º REC
IC201 2, REC
IC201 (•
H 480mVp-p
480mVp-p
H
30Hz
3-3
CN201 CN201
ARC DATA
IC160 42 ARC DATA 2
ARC CLK
FROM IC160 41 ARC CLK 3
SYSCON
BLOCK
VIDEO IN
7
(SEE PAGE 3-5)
IC160 13 Q VD
C IN
5
IC201 @ª PB
2.3Vp-p
H
25
Q VD
Q870
R
CHARA 6dB
29 BUFFER
INS AMP
P
KIL X870
23
B.D 500kHz
24
R
FBC 1/2
P
R
1H
LPF YNR 43 46
DL
P
Y/C
P R
MIX
CLP
PIC
CONT
61 53
INV 59 55
LPF
R DL
BPF1
EQ
P
MAIN
BPF2
COMV.
Q202
R
SUB DE
10 17 CLP
BPF P EMPH
SUB
DEM
LPF
PB
BGA-B
B
REC
PB
APC
PA
BGA-A
P
R
REC
BGA
VCO
FM MAIN N.L DETAIL
MOD EMPH. EMPH. ENH
SERIAL
DECODER
HA SWP C ROT
97 96 21 20
I2C DATA IC160 72
I2C CLK IC160 71
FROM/TO
C ROT IC160 15
SYSCON
C SYNC IC160 58
BLOCK
RF ENV IC160 8
(SEE PAGE 3-5)
ENV SW IC160 17
HA SWP IC160 16
RF SWP IC160 18
RF SW P
REC/PB
1.5Vp-p
AR-20 BOARD
(SEE PAGE 4-28)
IC570
ARC
CN570
IC160
2 10 DATA (1/3)
3 9 CLK CN201
CN570
VIDEO OUT
V OUT 4 4 4 50 OSD V IN OSD V OUT
Q502
7 18 Y IN
5 20 C IN BUFFER 56 C VIDEO IN
IC871
Q871,872 Q875 VSET
MEDIA
BUFFER 26 VIDEO
VIDEO
SO 17 S IN 0
SI 16 S OUT 0
IC870
S CLK 0
SCK 15
ARC
IRQ 32 V SET CS
2 VIDEO
RESET 19 V SE RESET
HD 9 28 H SYNC
10 32FH
XTAL 30
Q873,874
X871
11 32FH
8MHz
WAVE
VD 5 29 V SYNC EXTAL 31
SHARPER
Q203
47 BUFFER
41
CLK IN
50
1H/2H
52
DL
AMP 63
IC201 ^¶ REC/PB
3.579545MHz 460mVp-p
VXO1 67
X201
3.579545MHz
66
65
62
60
SLD
3-4
CJ561
Q500 Q561
LINE
OUT
52 BUFFER BUFFER
VIDEO
TO
TUNER
RF VIDEO
BLOCK
TU701 5
(SEE PAGE 3-6)
FROM
IC160 69
SYSCON
IC160 68
BLOCK
IC160 70
(SEE PAGE 3-6)
IC160 67
IC160 100