Block Diagram - Video Section - Sony STR-DE895 Service Manual

4-4. BLOCK DIAGRAM — VIDEO SECTION —
COMPONENT VIDEO SELECTOR
J2304 (1/2)
0X
Y 12
-4
1X
13
DVD P B/ B-Y
-5 0Z
IN
5
1Z
P R/ R-Y 3
-6
COMPONENT 0Y
2
-1
VIDEO
1Y
1
Y
-2
P B/ B-Y
TV/SAT
IN -3
P R/ R-Y
VIDEO
SELECTOR
IC2303
J2303 (1/2)
-2
V1
VIDEO
VIDEO 1 13
IN
J2301
-2
LD
VIDEO
DVD 5
IN
-1
TV
VIDEO 3
TV/SAT
IN
J2302 (2/2)
-1
V2
VIDEO 9
VIDEO 2
V3
IN
7
J2052 (1/2)
-1
DE995 VIDEO 3
VIDEO
INPUT
J2001 (1/2)
-1
DE895
VIDEO 3 S-VIDEO
VIDEO
INPUT
Y SWITCH
IC2101
J2106 V1
13
Y
-2
G
LD
S-VIDEO
VIDEO 1 5
IN
TV
3
G
C
V3
7
V2
9
J2105
-2
Y
G
S-VIDEO
DVD
IN
S-VIDEO
G
C
C SWITCH
IC2102
J2105
V1
-1 Y
G
13
S-VIDEO
TV/SAT
IN
LD
5
G
C
TV
3
V3
7
J2501
V2
9
Y
VIDEO 3
S-VIDEO
INPUT
C
DE995
VIDEO AMP
IC2308 IC2307
6dB AMP
XCOM VIN2 75Ω VOUT2
14 3
DRIVER
6dB AMP
VOUT3
ZCOM VIN3 75Ω
4 5
DRIVER
6dB AMP
VOUT1
YCOM VIN1 75Ω
15 1
DRIVER
Q2347
INH 6
B C A
INV.
10 9 11
6dB AMP
V1.OUT
75Ω
DRIVER
6dB AMP
M.OUT
75Ω
DRIVER
10 4 6 14 2
OR
D2392,2393
6dB AMP
V1.OUT
75Ω
DRIVER
6dB AMP
M.OUT
75Ω
DRIVER
10 4 6 14 2
6dB AMP
V1.OUT
75Ω
DRIVER
6dB AMP
M.OUT
75Ω
DRIVER
10 4 6 14 2
21 21
VCC
+5V-3
J2304 (2/2)
11 Y
-7
MONITOR COMPONENT
9 P B-Y
B/ OUT VIDEO
-8
P R-Y
13 R/
-9
VEE
-5V-3
V-SW4
V-SW3
+7V-2
IC2304 IC2305
+5V +7V
+5V-3
3 1 3
REG REG
DE995
VCC
+5V-3
J2303 (2/2)
15
DE895
1
MON-V/IN
G
MON-Y/IN
MON-C/IN
VEE
-5V-3
MON-V/OUT
H
MON-Y/OUT
MON-C/OUT
VCC
+5V-3
J2106
15
Y
DE895
1
C
VEE
-5V-3
+5V-3
VCC
+5V-3
J2104
Y
15
DE895
C
1
VEE
V-SW1
-5V-3 V-SW5
VIDEO SW1
OR
V-SW2
VIDEO SW2
E
D2101,2103 V-SW3
VIDEO SW3
V-SW4
VIDEO SW4
STR-DE895/DE995
DE895
4V
IC2309
+12V
1 3 1
REG
-1
VIDEO
VIDEO 1
OUT
-3
VIDEO
MONITOR
OUT
OSD
SECTION
(Page 23)
OSD
SECTION
(Page 23)
• Signal path
: VIDEO
-1
G
S-VIDEO
VIDEO 1
OUT
G
-V
IC2306
+5V
3 1
REG
G
S-VIDEO
MONITOR
OUT
G
KEY/DISPLAY
SECTION
(Page 22)