Read Sony STR-DE997 Service Manual online
STR-DE997
15
15
STR-DE997
4-4. BLOCK DIAGRAM — VIDEO SECTION —
J3103 (1/2)
10
6
14
2
13
J3101 (1/2)
5
3
4
VIDEO
IN
VIDEO
IN
15
75Ω
DRIVER
6dB AMP
1
3
1
75Ω
DRIVER
6dB AMP
-1
J3103 (2/2)
-2
VIDEO 1
J3102 (1/2)
VIDEO
IN
-2
VIDEO 2
DVD
-2
VIDEO
IN
-1
VIDEO
OUT
VIDEO 1
VIDEO 2
-3
VIDEO
OUT
MONITOR
J3102 (2/2)
-1
VIDEO
OUT
+12V
REG
IC3101
3
1
+9V
REG
IC3102
3
1
+5V
REG
IC3103
+5V-3
+9V
3
2
-5V
REG
IC3104
-5V-3
V SW1
V SW2
V SW3
V SW4
CTRL A1
SW1
SW2
SW3
SW4
D3201,3202
OR
VEE
-5V-3
VCC
+5V-3
+15V
-15V
V1.OUT
M.OUT
11
75Ω
DRIVER
6dB AMP
V2.OUT
V1 IN
LD
TV
V2 IN
V3
SW2
SW4
SW3
SW1
SW2
SW3
SW4
SW1
SW5
7
J2702 (1/2)
VIDEO 3
INPUT
-1
VIDEO
9
KEY/DISPLAY
SECTION
E
OR
J2106 (1/2)
J2105 (1/2)
J2105 (2/2)
S-VIDEO
IN
-2
VIDEO 1
S-VIDEO
IN
-2
DVD
S-VIDEO
IN
-1
TV/SAT
13
5
3
10
6
14
2
15
75Ω
DRIVER
6dB AMP
6dB AMP
13
5
3
10
6
14
2
15
75Ω
DRIVER
6dB AMP
6dB AMP
Y
C
G
G
J2106 (2/2)
S-VIDEO
OUT
-1
VIDEO 1
CTRL A1
J2305
Y
C
G
G
S-VIDEO
OUT
MONITOR
Y
C
G
G
Y
C
G
G
Y
C
G
G
J2104
VEE
-5V-3
VCC
+5V-3
VEE
-5V-3
VCC
+5V-3
V1.OUT
M.OUT
V1.OUT
M.OUT
V1
LD
TV
TV
9
7
V2 IN
V3
V3
V1.IN
LD
TV
TV
J2701
VIDEO
INPUT
INPUT
S-VIDEO
Y
C
SW2
SW4
SW1
SW5
SW2
SW4
SW1
SW5
SW2
9
7
V2 IN
V3
V3
SW2
SW4
SW1
SW5
SW4
4
4
SW3
SW3
SW3
SW3
SW1
SW5
Y SWITCH
IC2101
VIDEO
SELECTOR
IC3201
C SWITCH
IC2102
D2102,2103
OSD
SECTION
G
OSD
SECTION
H
MONITOR-V/IN
MONITOR-Y/IN
MONITOR-C/IN
MONITOR-C/IN
MONITOR-V/OUT
MONITOR-Y/OUT
MONITOR-C/OUT
TV/SAT
1
75Ω
DRIVER
1
75Ω
DRIVER
• Signal path
: VIDEO
(Page 16)
(Page 17)
(Page 17)
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