Block Diagram - Osd Section - Sony STR-DE997 Service Manual

4-6. BLOCK DIAGRAM — OSD SECTION —
TP3501
V SYNC
1
H SYNC
2
(TEST)
TEST
4
OSD-DIN
KEY/DISPLAY
F
OSD-CLK
SECTION
OSD-CS
(Page 16)
14.31MHz
CT3501
UPCON DATA
43
UPCON CLK 111
SYSTEM
CONTROL
IC1101 (4/5)
OSD ON/OFF 108
V MUTE 64
COMP SEL2 40
66
COMP SEL1
J3104 (1/2)
-1
Y
-2
P /C /B-Y
TV/SAT B B
IN
-3
P /C /R-Y
R R
COMPONENT
-4
VIDEO
Y
-5
DVD P /C /B-Y
B B
IN
-6
P /C /R-Y
R R
STR-DE997
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MONITOR-V/IN
VIDEO
G
MONITOR-Y/IN
SECTION
MONITOR-C/IN
(Page 15)
ON SCREEN DISPLAY CONTROL
IC3501
V OUT
V IN
3 25
ANALOG
Y OUT
Y IN
2 SW 27
C OUT
C IN
1 26
VIDEO
NTSC/
OUTPUT
SIGNAL
11
PAL
CONTROL
GEN
10
SIGNAL
GEN
TEST
21
DISPLAY
CG ROM
MEMORY
CHARACTER
CONTROL
SIN
23
SERIAL
SCLK
DATA VRAM
INPUT
22
CS
CONTROL
24
EXS
X3501
8 4FSC
COLOR
OSC
9 BURST
XD
DOT VIDEO
16
EXD CLK PHASE
15
GEN SYNC
OSD SWITCH
Q3501-3503
IC3253
SYNC
1
SEPARATION
RY3303
RELAY
CONTROL
Q3302
RY3304
MONITOR SELECTOR
IC3651 VIDEO AMP
IC3641 (1/2)
12
Q3641
14 1 4
13
2
15
1
5
4
3
C B A
9 10 11
IC3731
SYNC
1 2
SEPARATION
VIDEO AMP
IC3741
H/V
1 4 SEPA
Q3701
8 5
SYNC DET
2
Q3252
RELAYCONTROL
Q3301,3304
VIDEO AMP
IC3321
6dB AMP
VIN1 75Ω
1
DRIVER
6dB AMP
VIN2 75Ω
4
DRIVER
6dB AMP
VIN3 75Ω
7
DRIVER
MUTE1 MUTE2
3 10
17 17
Y/C SEPARATION
IC3601
AD
IN
2 ADC
DYNAMIC
COLOR
COMB
KILLER
FILTER
I LINE
MEMORY
SYSTEM
PLL
CLOCK
UP CONVERT SELECTOR
IC3751
12
14 8
13
5
4 1
3
SYNC DET
C B A
Q3731
9 10 11
VIDEO AMP
IC3641 (2/2)
SECAMREF 30 8
38 V SYNC
39 H SYNC
26
XNTSC
34 CVBS/Y IN
X3701
3.5795MHz
32
C IN
V2 OUT 6
U2 OUT 7
37 SDA
CLOCK GENERATOR
18
36 SCL Y OUT
IC3701
RY3301
RY3302
J3104 (2/2)
VCC
+5V-3
-7
VOUT1
15
-8
VOUT2
13
-9
VOUT3
11
VEE -5V-3
STR-DE997
AYO
Y PROCESS
DAC 15
Q3621,3622
ACO
C PROCESS
DAC 7
Q3631,3632
FIN
37
MONITOR-V/OUT
VIDEO AMP
IC3671
VIDEO
H
5
MONITOR-C/OUT
SECTION
(Page 15)
4 MONITOR-Y/OUT
5
• Signal path
: VIDEO
Y
MONITOR COMPONENT
P /C /B-Y
OUT VIDEO
B B
P /C /R-Y
R R