Confidential
DMP-1000P (AEP)
5-1
5-2
SECTION 5
DIAGRAMS
5-1.
BLOCK DIAGRAM – VIDEO Section –
2
1
3
4
(ON: PLUG IN)
CJ1801
S VIDEO INPUT
J1801
VIDEO
INPUT
J1802
OUTPUT
05
AD IN
CVRF
YVRF
INSL
25
AYO 31
ACO 39
41
33
10
50
20
OCLK
11
Y SIGNAL
SELECT SWITCH & VIDEO AMP
IC102
Y/C SEPARATOR
IC105
Y/C MIX
IC103 (1/2)
VIDEO ENCODER
IC103 (2/2)
AFC
IC401
A/D, D/A CONVERTER,
MEMORY BUS CONTROL
IC407 (1/2)
Y IN
C IN
Y OUT
Y IN
R-Y IN
B-Y IN
C SYNC IN
XO IN
C OUT
C VIDEO
OUT
1
3
2
5
4
7
16
15
18
17
20
5
15
9
16
VSIN
VCIN
MCKI
YO
1
3
2
5
4
7
CHROMA SIGNAL
SELECT SWITCH & VIDEO AMP
IC101
6
10
3
2
4
VIDEO AMP
Q104, 123
BFP
23
WEVN 32
AFH 27
VD 26
MCKO 17
YMCK 37
LOW-PASS
FILTER
FL102
Y AMP
Q107
Y/C
MIX
CLAMP
CLAMP
R-Y
MODULATOR
PULSE
GENERATOR
PHASE
SHIFTER
OSC
B-Y
MODULATOR
CLAMP
VIDEO
AMP
BAND-PASS
FILTER
FL101
Y BUFFER
Q101
R-Y BUFFER
Q102 (1/2)
B-Y BUFFER
Q102 (2/2)
R-Y AMP
Q404
B-Y AMP
Q402
R-Y BUFFER
Q406
B-Y BUFFER
Q405
CLAMP
Q408
CLAMP
Q409
R-Y BUFFER
Q411
B-Y BUFFER
Q413
LOW-PASS
FILTER
FL106
LOW-PASS
FILTER
FL107
CHROMA
AMP
Q109
CLAMP
Q124
RV102
Y/C SEPARATION
CHROMA LEVEL
RV103
Y/C SEPARATION
Y LEVEL
CT410
910fh
RV404
A/D IN
Y LEVEL
RV405
A/D IN
R-Y LEVEL
RV401
D/A OUT
Y LEVEL
RV402
D/A OUT
CHROMA LEVEL
+
SYCX
29 Y OUT
43
V OUT
36
U OUT
CGEEX
82 V IN
Y AMP
Q403
Y BUFFER
Q407
CLAMP
Q410
Y BUFFER
Q412
LOW-PASS
FILTER
FL105
LOW-PASS
FILTER
Q401, 416
64
Y IN
90 ECK
88
EVD
89
EHD
91 EEVN
73
U IN
26 VREF1
33 VREF2
40 VREF3
• SIGNAL PATH
: COMPOSITE VIDEO
: Y SIGNAL
: CHROMA SIGNAL
: R-Y SIGNAL
: B-Y SIGNAL
Y
C
1H DELAY
IC250
VIDEO
C IN
C OUT
25
5
3
OUT 3
R-Y OUT
HD
20
24
B-Y OUT
X101
17.73MHz
19
B-Y IN
14
1 IN
CLK IN
R-Y IN
16
C CNT
4
AMP
Q251
LOW-PASS
FILTER
FL250
BUFFER
Q252
DEMODULATOR
FL251
AMP
Q250
CLOCK BUFFER
Q113
RV105
HUE LEVEL
T IN
11
VCXI
12
VCXO
10
RV106
A/D IN
B-Y LEVEL
RV250
1H DELAY
CT250
1H DELAY
CT102
FREE-RUN
FREQUENCY (1)
5
R-Y/B-Y DECODER
IC108
X102
4.43MHz
XO OUT
5
CT103
ENCODER
4.43MHz
2
4
IC402
R-Y
B-Y
R-Y
B-Y
R-Y
B-Y
R-Y
B-Y
R-Y
B-Y
R-Y
B-Y
R-Y
B-Y
R-Y
B-Y
B-Y
R-Y
