Yamaha DVD-S1200 Service Manual page 35

A B
Q Q
3 7 6 3 1 5 1 5 0
1
BLOCK DIAGRAM (7/8)
2
A
B
3
FROM
IC6004-12Pin
C
D
T E
L 1 3 9 4 2 2 9 6 5 1 3
4
IC3201(VIDEO DAC)
HSYNC
VSYNC
VIDEO TIMING GENERATOR
BLANK
TTX
TELETEX
INSERTION
BLOCK
TTXRQ
5
10
/
Y
YCrCb DNR
10
TO AND
/
YUV U GAMMA
MATRIX CORRECTION
V
/ 10
10 / / 10
VD0
1
VD1
6 2
VD2
E 3
VD3
4
VD4 DEMUX
5
VD5
F 6
VD6
7
w w w VD7
8
VREF
DAC
COMP1
RESET1 CONTROL
.
48
BLOCK
7
G
I
C D
IC3261(VIDEO SWITCHING)
15 1
14 2
13 3
12 4
11
10
9
5
PAL NTSC
VSO/CLAMP
CSO HSO
BRIGHTNESS
PROGRAMMABLE
CONTROL
LUMA FILTER
AND
AND
ADD SYNC
SHARPNESS
10 AND
FILTER
/ INTERPOLATOR
Y
10
/ SATURATION
U
CONTROL
/
V
10 AND PROGRAMMABLE
ADD BURST CHROMA FILTER
AND
INTERPOLATOR
CLKOUT
REAL-TIME
CLKIN PLL
CONTROL
CIRCUIT
SCRESET/
x a o
CGMS/WSS
RTC/TR
y
AND
DAC
CLOSED CAPTIONING
RESET2
CONTROL
i CONTROL
COMP2
BLOCK
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8
Q3551
AMP
Q3561
AMP
Q3571
AMP
Q Q
3 7 6 3
RESET
DACA
10-bit
45
DAC
YUV-TO-RGB
MATRIX
AND 10-bit DACB
44
YUV LEVEL DAC
CONTROL
BLOCK
10-bit DACC
41
DAC
DACE
10-bit
37
DAC
MODULATOR
AND
HUE CONTROL
+
DACF
10-bit
36
DAC
SIN/COS
DDS 10-bit DAC D
BLOCK
DAC
SCL
u 1 6 3
30
2
I C
MPU
SDA
PORT
ALSB 31
.
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G H
2 4
9 9 8
IC3581(VIDEO DRIVE)
2 INA 14
15
12
4 INB
13
7 INC 10
IC3531(VIDEO DRIVE)
Q3501
1 5 1 5 0 8 9 2 4
AMP 3 Y Y OUT 19
Y FB 20
V OUT 16
V FB 17
Q3236
AMP
Q3231
AMP
C OUT 14
Q3226
K3201
AMP
VR3225
Q3511
AMP 11 C
VR3221
m
IC6221(EEP ROM)
c o
6 SCL
5 SDA
I J
DVD-S1200
2
9 9
MAIN SIGNAL
JK3581
Y OUT
PB OUT
9 PR OUT
9 8 2 9 9
JK4501
VIDEO OUT
1/2
JK3541
S VIDEO
OUT 1/2
IC3531-16
2.2Vp-p(20usec./div.)
IC3531-14
1.2Vp-p(20usec./div.)
IC3531-9
2.2Vp-p(20usec./div.)
34