Sony STR-DG800, Service Manual

Page: 17 / 92

STR-DG800
17 17
STR-DG800
4-3. BLOCK DIAGRAM — VIDEO SECTION —
• Signal path
: VIDEO
• Abbreviation
E2 : 120V AC area in E model
MY : Malaysia model
SP : Singapore model
Y
P
B/
C
B/
B-Y
P
R/
C
R/
R-Y
Y
P
B/
C
B/
B-Y
P
R/
C
R/
R-Y
J3301 (1/2)
(ASSIGNABLE)
(ASSIGNABLE)
J3401 (2/3)
10 6 14 2
13
J3403 (1/2)
5
3
4
TV/SAT
IN
DVD
IN
VIDEO
IN
VIDEO
IN
COMPONENT
VIDEO
-1
-2
-3
-4
-5
-6
Y
P
R/
C
R/
R-Y
P
B/
C
B/
B-Y
J3301 (2/2)
MONITOR
OUT
COMPONENT
VIDEO
-7
15
75 Ω
DRIVER
VIDEO
BUFFER
Q3601,3604
6dB AMP
1
3 1
75 Ω
DRIVER
6dB AMP
-1
J3401 (1/3)
J3402 (1/2)
-8
-9
-2
VIDEO 1
J4091 (1/2)
VIDEO
-1
VIDEO 3 IN/
PORTABLE AV IN
DVD
VIDEO 2
TV/SAT
-2
VIDEO
IN
-1
VIDEO
OUT
VIDEO 1
-1
VIDEO
OUT
MONITOR
+7V
REG
IC3101
+VCC7V
3 1
+9V
REG
IC3102
+9V
SW1
SW2
COMP SW1
SIN SOUT
LAT
CLK
OE
DATA
COMP SW2
UP SEL
SW3
SW4
VIDEO
CONTROL
VIDEO SELECT
IC3651
IC1601
D3431,3432
OR
VEE
-5V-3
VCC
+5V-3
+VCC
+15V
V1.OUT
M.OUT
11
75 Ω
DRIVER
6dB AMP
V2.OUT
V1 IN
LD
TV
V3
V2 IN
SW2 SW4 SW3 SW1
SW2 SW3 SW4 SW1 SW5
INPUT SELECT
IC3431
9
J3402 (2/2)
VIDEO
IN
-2
7
OR
MUTE1 MUTE2
MUTE2
MUTE1
3 1
+5V
REG
IC3103
+5V-3
3 2
-5V
REG
IC3104
-5V-3
+VCC
-VCC
J2106 (2/2)
J2105 (1/2)
J2105 (2/2)
S-VIDEO
IN
-2
VIDEO 1
S-VIDEO
IN
-1
DVD
S-VIDEO
IN
-2
TV/SAT
13
3
5
10 6 14 2
15
75 Ω
DRIVER
6dB AMP
1
75
Ω
DRIVER
6dB AMP
13
3
5
10 6 14 2
15
75 Ω
DRIVER
6dB AMP
1
75
Ω
DRIVER
6dB AMP
Y
C
G
G
J2106 (1/2)
-1
VIDEO 1
Y
C
G
G
Y
C
G
G
Y
C
G
G
VEE
-5V-3
VCC
+5V-3
VEE
-5V-3
VCC
+5V-3
V1.OUT
M.OUT
V1.OUT
M.OUT
V1 IN
TV
LD
7
9
V3
V2 IN
V1 IN
TV
LD
SW2 SW4 SW1 SW5
SW2
SW4 SW1 SW5
SW2
7
9
V3
V2 IN
SW2
SW4 SW1 SW5
SW4
4
4
SW3
SW3
SW3
SW3 SW1 SW5
Y SWITCH
IC2101
C SWITCH
IC2102
D2102,2103
12
2
5
A B C
CS MUTE
11 10 9 6
HDMI
CONTROL
BUFFER
IC3141
IC1602 (1/2)
7
15
13 13
6
5
4
3
2
1
IC3731
RY3304
RY3302
RY3301
COMP SW1 COMP SW2
RY3303
1 2
SYNC
SEPARATION
38
39
34
37
36
32
18
30
16
14
21 22 24 1 26 28 23
VIDEO PROCESS
IC3701
Y VIDEO AMP
IC3721
1 15
VIDEO AMP
IC3321
7 4 13
6 7
3
11
UPCON
FUSE DETECT
MODEL/CSMUTE
UPCON CLK
D595 OE
D595 LAT
D595 CLK
D595 DATA
OSD ON/OFF
CS MUTE
OSD ON
UP-MUTE
V-MUTE
M-MUTE
12 12
11 11
14 9
1
3 12
4
1
2
15
3
6
11
64
63
14
SYSTEM
CONTROL
IC1101 (3/5)
33
34
88
89
87
86
S-VIDEO
OUT
-3
J3401 (3/3)
VIDEO
OUT
MONITOR
MONITOR
15
1 2
SYNC
SEPARATION
IC3253
SWITCH
Q3252
RELAY
DRIVER
Q3302
RELAY
DRIVER
Q3301,3304
14
15
1O
5
37
9
26 23 19 17
7
VIDEO
BUFFER
Q3651-3653
2
11
12
SYNC
SEPARATION
Q3701
2ND ROOM
TUNER/
AUDIO
SECTION
C
Y AMP
Q3621
Y AMP
Q3673,3674
C AMP
Q3675,3676
Y/C SEPARATION
IC3601
VIDEO MUTE CONTROL
IC3671
Y/C SELECT
IC3751
Y AMP
Q3631
MUTE
Q3677,3678
3
4
14
11 10 9 6
12
13
J2104
Y
C
G
A B C
G
S-VIDEO
OUT
VIDEO AMP
Q3671,3672
SWITCH
Q3731
11
13
3 10
X3703
500kHz
X3701
3.5795MHz
X3702
4.43MHz
VSYNC
VI(B-Y)
VI(R-Y)
VO(B-Y)
VO(R-Y)
HSYNC
YOUT
VOUT1
E2,MY,SP MODEL
VOUT2
VOUT3
SECAM REF
U2OUT
V2OUT
CERA
XNTSC
443/358
(B,Y) IN
(B,Y) OUT
(R,Y) IN
(R,Y) OUT
F IN
AD IN
MONITOR V/IN
MONITOR Y/IN
MONITOR C/IN
CVBS/Y IN
C IN
SCL
SDA
4
1
4
7
VIN3
VIN2
VIN1
VOUT3
AYO
PNR
NTPL1
MOD1 MOD2
ACO
VOUT2
VOUT1
Y PROCESS
Q3622,3623,3647
C PROCESS
Q3624,3632,3633
(Page 15)
Ver. 1.1