Block Diagram - Video Section - Sony STR-DG910 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
5-3. BLOCK DIAGRAM — VIDEO SECTION —
J6102
–1
Y
–2
P C
B/ B
SAT
–3
IN
P C
R/ R
–4
Y
–5
COMPONENT DVD
P C
B/ B
VIDEO IN
–6
P C
R/ R
–7
Y
–8
VIDEO 1
P C
B/ B
IN
–9
P C
R/ R
J6401 (1/3)
–2
VIDEO
VIDEO 1
IN
J6403
–2
VIDEO
DVD
IN
–1
VIDEO
SAT
T E
L 1 3 9 4 2 2 9 6 5 1 3
IN
J298 (1/2)
–1
VIDEO 3 IN/
VIDEO
PORTABLE AV IN
J6402 (1/2)
–2
VIDEO
VIDEO 2 /BD
IN
w w w
STR-DG910
COMPONENT VIDEO SELECT
IC6101
V+1,+2
6dB AMP +5V-3
CH1 IN1
1
CH1 OUT
75Ω
CH1 IN2
3 24
DRIVER
CH1 IN3
5
6dB AMP
CH2 IN1
8
CH2 OUT
CH2 IN2 75Ω
10 22
DRIVER
CH2 IN3
12
6dB AMP
CH3 IN1
17
CH3 OUT
75Ω
CH3 IN2
20
15
DRIVER
CH3 IN3
13
V-1,-2
–5V-3
SW1 SW2 PS
2 4 23
VC_SEL1 VC_SEL2 VC MUTE
VIDEO SELECTOR
IC6402
V1 IN
13
6dB AMP
V2 IN
9
LD
5
6dB AMP
TV
3
6dB AMP
V3
7
14 2 10 4 6
D6402 D6401
x a o
y
. i
http://www.xiaoyu163.com
J6101
Y
–1
MONITOR COMPONENT
P C
B/ B OUT VIDEO
–2
P C
R/ R
–3
IC6601
+5V
+7V
+5V-3 2 1
REG
IC6602
–5V
–5V-3 –7V
3 2
REG
INPUT SELECT
IC6701
VCC
+5V-3
VIN1
VOUT2
12 5
VIN2
3 SW
M.OUT VIN3
75Ω VOUT1
1 1 10
DRIVER
MUTE SW1
11 2
V1 OUT
75Ω Q Q
15
3 7 6
DRIVER
V2 OUT
75Ω
11
DRIVER
VEE
–5V-3
VIDEO CONTROL
IC6201
VC MUTE
15 QA
VC_SEL2
2
QC
VC_SEL1
CLK 11
3 QD
VIDEO_SW4
4 QE
LAT 12
VIDEO_SW3
5 QF
VIDEO_SW2
S-IN 14
6 QG
VIDEO_SW1
7
QH
HDMI SELECT
DCAC_ON/OFF
DIGITAL
G
SECTION
TC74HC153_A
(Page 18)
TC74HC153_B
POWER
J
HP RY
SECTION
(Page 23)
POWER CONTROL
+5V-OSD
Q6501,6502
IC6308
+3.3V
+3.3V-3 3 1
REG
u 1 6 3
.
19 19
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2 4
8 9 9
CR IN
HDMI SW
CB IN
I
SECTION
CY IN
(Page 20)
CVBS IN
• Signal path
: VIDEO
• Abbreviation
CND : Canadian model
UP CONVERTER
IC6307
Y BUFFER
VIDEO IN 1
46
Q6306
VIDEO 20
SDA
BUFFER 4 VIDEO IN 2
21
SCL
Q6304
RESET 38
41 X0
X6301
J6401 (3/3) -3
24.576MHz
X1
42
VIDEO
MONITOR
OUT
J6401 (2/3)
-1
VIDEO
3 1 5 VIDEO 1 1 5 0 8 9 2
OUT
J6402 (2/2)
-1
VIDEO SYSTEM CONTROL
VIDEO 2/BD
OUT IC1010 (3/7)
35 D595LAT
33 D595CLK
34
OSD_SW
UPCON_RESET 4
42
UP_CON I2C CLK
UP_CON I2C DA 41
VIDEO CONTROL
BUFFER
IC1602 BUFFER
IC6202
11 CLK
73 9
OSD LATCH
12 LAT
OSD
DATA 74 5
S-IN 14 32 D595DATA
9
S-OUT
OSD CLK 75 12
MUTE
4 QD
15
QA
1
QB
2
QC
CLOCK GENERATOR
IC6503
X6503
5
QF
17.3734MHz
6 QG
1 7 10
OSD ON/OFF
3 QE
3 5 13
X6502
+5V-3
14.31MHz
EXCEPT US,CND MODEL
m
c o
STR-DG910
2
8 9 9
4 9 8 2 9 9
ON SCREEN
DISPLAY CONTROL
IC6501
8 24 CS
Q6504
6 23 SIN VOUT 25
SCLK
11 22
EXS XS
8 9
BUFFER
IC6502
3
X6501
14.31MHz
US,CND MODEL