Block Diagram - Video Section - Sony STR-DB2000 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
6-8. BLOCK DIAGRAM – VIDEO Section –
INPUT SELECT
J1091 (2/2)
IC1201
VIDEO 3
INPUT 7 V3
VIDEO
J1203 (1/3)
VIDEO 1
VIDEO
13 V1. IN
IN
J1202 (1/2)
VIDEO 2
VIDEO 9 V2. IN
IN
VIDEO
DVD
5 LD
VIDEO
IN
J1201
TV/SAT
VIDEO 3 TV
IN
Y INPUT SELECT
IC701
J1092
Y
VIDEO 3
7 V3
INPUT C
S-VIDEO
J705 (1/2)
Y
VIDEO 1
13 V1.IN
S-VIDEO C
IN
J701
Y
DVD
VIDEO 5 DVD
S-VIDEO C
T E
L 1 3 9 4 2 2 9 6 5 1 3
IN
Y
TV/SAT
3 TV
S-VIDEO
C
IN
C INPUT SELECT
IC702
7 V3
13 V1.IN
5 DVD
3 TV
• SIGNAL PATH
:VIDEO
w w w
.
J1202 (2/2)
VIDEO 1
V1. OUT 15 VIDEO
OUT
VIDEO
J1203 (2/3)
VIDEO 2
V2. OUT 11 VIDEO
OUT
SYNC SEPARATOR
M. OUT 1
V-SW1
SW1 14
V-SW2
SW2 10
V-SW3
SW3 4
V-SW4
SW4 6
SW5 2
V-SW3
V-SW4
J705 (2/2)
VIDEO
Y
V1.OUT 15
VIDEO 1
C
S-VIDEO
OUT
SYNC SEPARATOR
M.OUT 1
V-SW1
OSD DRIVER
SW1 14
V-SW2
SW2 10
V-SW3
SW3 4
V-SW4
SW4 6
D701
SW5 2
V SYNC BUFFER
3 VIN
Q1241
Y SYNC BUFFER
V1.OUT 15 1 YIN
Q1242
2 CIN
M.OUT 1
SW5 2
V-SW1
SW1 14
V-SW2
SW2 10
V-SW3
SW3 4
V-SW4
SW4 6
XD
16
CT1241
OSD
x a o
y
i
http://www.xiaoyu163.com
8
J751 (1/2)
P /C /R-Y
R R
COMPONENT
VIDEO P /C /B-Y
B B
TV-SAT IN
Y
P /C /R-Y
R R
(STR-DB2000)
COMPONENT
VIDEO
P /C /B-Y
B B
DVD IN
IC1281
Y
IC1282
IC1241
Q Q
SIN 23
3 7 6 3
SCLK 22
CS 24
VIDEO BUFFER
IC1242
VOUT 25 3 VIN VOUT 7
YOUT 27 2 YIN YOUT 8
COUT 26 4 CIN COUT 6
CT1271
OSD
X1271
NTSC/PAL
14.31MHz
EXS 8 SELECT
EXD
IC1271, 1272
15 CT1272
OSD
CT1261
X1261
X1272
OSD 14.31MHz
17.734MHz
(STR-DA2000ES) (STR-DB2000)
u 1 6 3
.
23 23
http://www.xiaoyu163.com
2 4
9 9 8
RY761 RY766
RY762
RY767
RELAY
RELAY
DRIVE
DRIVE
Q766
Q761
1 5 LEVEL SHIFT 1 5 0 8 9 2 4
IC1243
(STR-DB2000)
13
VIDEO SYNC
VIDEO BUFFER
4 SEPARATOR
Q3100 – 3102
IC3100
15
10
RY1290
1
RELAY DRIVE
CLOCK
Q1291 – 1295 GENERATOR 7
IC3101
16
+5V, – 5V
4
X3100
7.5795MHz
m
c o
STR-DA2000ES/DB2000
2
9 9
J751(2/2)
P /C /R-Y
R R
COMPONENT
P /C /B-Y VIDEO
B B
MONITOR OUT
Y
OSD-VSYNC
X (Page 24)
XSEL
OSD-DATA
9 8 2 9 9
OSD-CLK
OSD-LAT
J1203 (3/3)
MONITOR
VIDEO OUT
J709
Y
MONITOR
C
S-VIDEO OUT
C SYNC BUFFER
Q3108 – 3112
Y SYNC BUFFER
Q3103 – 3107
(STR-DA2000ES)
V-SW1
V-SW1
V-SW2
V-SW2
V-SW3 Y (Page 24)
V-SW3
V-SW4
V-SW4