Read Sony STR-DE885 / STR-DE985 (serv.man2) Service Manual online
8
8
STR-DE885/DE985
6. BLOCK DIAGRAM — VIDEO (2) SECTION —
J253 (1/2)
J203 (1/2)
J202 (1/2)
J202 (2/2)
10
6
14
2
13
J251
5
3
J252 (1/2)
9
4
VIDEO
IN
VIDEO
IN
15
75Ω
DRIVER
6dB AMP
1
3
1
75Ω
DRIVER
6dB AMP
-1
J253(2/2)
-2
VIDEO 1
S-VIDEO
IN
-2
VIDEO 1
S-VIDEO
IN
-2
DVD/LD
S-VIDEO
IN
-1
TV/SAT
DVD/LD
TV/SAT
-2
VIDEO
IN
-1
-2
VIDEO IN
VIDEO 2
J298
VIDEO
VIDEO 3
INPUT
13
5
3
10
6
14
2
15
75Ω
DRIVER
6dB AMP
1
75Ω
DRIVER
6dB AMP
VIDEO
OUT
VIDEO 1
-3
VIDEO
OUT
MONITOR
13
5
3
10
6
14
2
15
75Ω
DRIVER
6dB AMP
1
75Ω
DRIVER
6dB AMP
Y
C
G
G
J203 (2/2)
S-VIDEO
OUT
-1
VIDEO 1
Y
C
G
G
S-VIDEO
OUT
MONITOR
Y
C
G
G
Y
C
G
G
Y
C
G
G
+5V
REG
IC211
3
2
-5V
REG
IC212
+5V-3
-5V-3
+12V
-12V
J201
SW1
SW2
SW3
SW4
SW1
SW5
SW2
SW3
SW4
D201,202
OR
D203,204
OR
V1.OUT
M.OUT
11
75Ω
DRIVER
6dB AMP
J252 (2/2)
-1
VIDEO
OUT
VIDEO 2
V2.OUT
V1.OUT
M.OUT
V1.OUT
M.OUT
V1
V3
V2
V2.IN
DVD
J299
S-VIDEO
VIDEO 3
INPUT
Y
C
G
G
V1.IN
V3
V2.IN
V1.IN
V2.IN
EXD
XD
DVD
TV
V3
DVD
TV
TV
7
SW2
SW4
V-SW2
V-SW4
V-SW3
V-SW1
SW1
SW5
SW2
SW4
SW1
SW5
SW4
4
SW3
SW3
SW1
SW5
SW4
4
SW3
SW3
SW1
SW5
SW2
SW3
SW4
SW1
SW5
S-VIDEO V SWITCH
IC201
VIDEO SELECTOR
IC251
S-VIDEO C SWITCH
IC202
7
VIDEO(1)
SECTION
K
J
DE885
JW202
DE885
JW201
DE885
DE985
JW272
15
16
23
22
24
3
1
2
25
27
26
3
2
4
7
8
6
CLAMP
Q203
Q204
Q204
ANALOG
SWITCH
7
9
DOT-CLOCK
GENERATOR
CIRCUIT
SERIAL
INPUT
CONTROL
VIDEO
SIGNAL
GENERATOR
CIRCUIT
OSC
8
9
1
2
3
13
12
11
10
9
8
OSD_DATA
OSD_CLK
OSD_CS
+5V
BUFFER
IC1141
CIN
YIN
VIN
CS
SCLK
SIN
CT252
L251
VIDEO
PHASE
SYNC
DATA
EXS
XS
CLOCK
X251
14.31818MHz
VOUT
YOUT
COUT
VOUT
YOUT
COUT
VIN
YIN
CIN
ON-SCREEN-DISPLAY CONTROL
IC252
VIDEO
DRIVER
IC253
9
VIDEOL(1)
SECTION
• Signal path
: VIDEO
(Page 7)
(Page 7)
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