Read Sony STR-DG910 Service Manual online
STR-DG910
19
19
STR-DG910
5-3. BLOCK DIAGRAM — VIDEO SECTION —
1
CH1 IN1
CH2 IN2
CH2 IN1
CH3 IN2
CH3 IN1
CH1 IN2
CH2 IN3
CH3 IN3
CH1 OUT
CH2 OUT
CH3 OUT
2
4
Y
P
B/
C
B
P
R/
C
R
Y
SW1
SW2
VC_SEL1
VC_SEL2
P
B/
C
B
P
R/
C
R
Y
P
B/
C
B
P
R/
C
R
J6102
J6401 (1/3)
24
75Ω
DRIVER
6dB AMP
22
75Ω
DRIVER
6dB AMP
20
75Ω
DRIVER
6dB AMP
23
PS
VC MUTE
14
D6402
D6401
10
4
13
J6403
5
3
SAT
IN
DVD
IN
VIDEO 1
IN
VIDEO
IN
VIDEO
IN
COMPONENT
VIDEO
–1
–2
–3
–4
–5
–6
–7
–8
–9
Y
P
R/
C
R
P
B/
C
B
J6101
MONITOR
OUT
COMPONENT
VIDEO
–1
1
75Ω
DRIVER
6dB AMP
15
2
1
75Ω
DRIVER
6dB AMP
-3
J6401 (3/3)
J6401 (2/3)
–2
–3
–2
VIDEO 1
DVD
SAT
–2
VIDEO
IN
–1
VIDEO
IN
–2
VIDEO
OUT
SW
MUTE
SW1
INPUT SELECT
IC6701
VIDEO 1
-1
VIDEO
OUT
J6402 (2/2)
VIDEO 2/BD
-1
VIDEO
OUT
MONITOR
+5V
REG
IC6601
+5V-3
3
2
–5V
REG
IC6602
–5V-3
QA
QC
QF
QH
QD
QE
VC_SEL2
VC_SEL1
VIDEO_SW3
VIDEO_SW1
VC MUTE
VIDEO_SW4
VIDEO CONTROL
IC6201
VIDEO CONTROL
BUFFER
IC1602
SYSTEM CONTROL
IC1010 (3/7)
BUFFER
IC6202
ON SCREEN
DISPLAY CONTROL
IC6501
VEE
–5V-3
VCC
+5V-3
+7V
–7V
M.OUT
1
11
2
VIN3
3
VIN2
12
10
VIN1
VOUT2
VOUT1
V1 OUT
11
75Ω
DRIVER
6dB AMP
V2 OUT
V-1,-2
–5V-3
V+1,+2
+5V-3
V1 IN
9
V2 IN
J298 (1/2)
7
VIDEO
–1
VIDEO 3 IN/
PORTABLE AV IN
J6402 (1/2)
VIDEO 2 /BD
V3
LD
TV
VIDEO_SW1
VIDEO_SW2
VIDEO_SW3
SW1
SW2
SW3
6
VIDEO_SW4
SW4
VIDEO SELECTOR
IC6402
COMPONENT VIDEO SELECT
IC6101
2
SW5
46
20
UP CONVERTER
IC6307
X6301
24.576MHz
4
41
42
21
38
15
2
3
3
4
5
5
QG
VIDEO_SW2
6
7
S-IN
HDMI SELECT
DCAC_ON/OFF
TC74HC153_A
TC74HC153_B
HP RY
14
LAT 12
CLK 11
CLK
CS
SIN
VOUT
SCLK
EXS
AEP,UK,E2 MODEL
US,CND,KR,TW
MODEL
XS
Q6504
LAT
S-OUT
11
12
9
D595DATA
D595CLK
D595LAT
32
S-IN
OSD LATCH
VIDEO IN 1
VIDEO IN 2
X0
X1
SDA
SCL
RESET
UP_CON I2C DA
UP_CON I2C CLK
UPCON_RESET
14
3
CH1 IN3
5
8
10
12
17
15
13
QA
15
QB
1
QC
2
+5V-OSD
+3.3V-3
QF
5
QG
6
QE
+5V-3
3
QD
MUTE
OSD ON/OFF
4
33
OSD_SW
34
41
73
9
8
24
42
4
35
G
POWER
SECTION
DIGITAL
SECTION
CY IN
CVBS IN
CR IN
CB IN
I
HDMI SW
SECTION
J
5
Y BUFFER
Q6306
VIDEO
BUFFER
Q6304
POWER CONTROL
Q6501,6502
+3.3V
REG
3
1
OSD
DATA
74
5
6
23
25
OSD CLK
CLOCK GENERATOR
IC6503
BUFFER
IC6502
75
12
11
22
8
9
3
10
13
7
5
1
3
X6503
17.3734MHz
X6502
14.31MHz
X6501
14.31MHz
IC6308
• Signal path
: VIDEO
• Abbreviation
E2 : AC 120V area in E model
CND : Canadian model
KR : Korea model
TW : Taiwan model
(Page 18)
(Page 23)
(Page 20)
Ver. 1.1
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