Sony DXC-S500, Service Manual

Page: 66 / 148

7-12
DXC-S500 (E)
UPC1830GT-E2 (NEC)
VIDEO/CHROMA SYNCRONIZING SIGNAL PROCESSOR
–TOP VIEW–
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32 f
H
VCO FILTER
32 f
H
VCO FILTER
32 f
H
VCO FILTER
HORIZONTAL AFC FILTER
GND
f
V
50/60 SWITCH
V
CC
COLOR KILLER
BLANKING PULSE
HD PULSE
VD PULSE
Y
R-Y
B-Y
GND
Y
V
CC
R-Y
B-Y
COLOR CONTROL
TINT CONTROL
CLAMP PULSE
R
G
B
COLOR KILLER FILTER
f
SC
VCO
f
SC
VCO (3.58 MHz)
f
SC
VCO (4.43 MHz)
CHROMA APC FILTER
f
O
ADJUSTMENT FILTER
ACC FILTER
GND
SEPARATE CHROMA
V
CC
COMPOSITE VIDEO SIGNAL
SUBCOLOR CONTROL
CONTRAST CONTROL
SYNC SEPARATION
H SYNC DETECT FILTER
f
SC
SWITCH
NTSC/PAL SWITCH
PIN
NO.
I/O SIGNAL
SEPARATE/COMPOSITE
SWITCH, ACC AMP.
SUBCOLOR CONTROL
CLAMP
CHROMA
TRAP
R-Y, B-Y
MODULATE
LPF
R-Y
Y R-Y B-Y
R-Y B-Y
R-Y
R-Y
R f
SC
C G B
B-Y G-Y
B-Y
C
Y
V
H
SYNC.
SEPARATE
MODE
SWITCH
V FILTER
H SYNC.
DETECT
H/V COUNT
DELAY
V
f
SC
KILLER
H
BLK
Y, R-Y, B-Y
OUTPUT BUFFER
Y, R-Y, B-Y
INPUT CLAMP
HD, VD, BLANKING PULSE,
KILLER OUTPUT BUFFER
32
f
H
VCO
AFC WAVE
DETECT
SEPARATE/COMPOSITE SWITCH
CHROMA
BPF
ACP, KILLER DETECT,
IDENT DETECT NTSC/PAL
MATRIX
TINT CONTROL
3.58 MHz/4.43 MHz
VCXO, PAL SW
RGB OUTPUT
BUFFER
FILTER FO
ADJUST
42
6 8 9
10 11 12 13 14 16 18 19 20 21
1 2 3 4
41 40 39 38 37 36 34 32 31 30 29 28 27 26
AMP. COLOR
CONTROL
CONTRAST
CONTROL
B-Y
25 24 23 22
NTSC/PAL SWITCH f
SC
SWITCH
H SYNC DETECT FILTER SYNC SEPARATION
CONTRAST CONTROL SUBCOLOR CONTROL COMPOSITE VIDEO SIGNAL
SEPARATE CHROMA ACC FILTER f O
ADJUSTMENT
FILTER
CHROMA APC FILTER
f SC
VCO (4.43 MHz)
f SC
VCO (3.58 MHz)
f SC
VCO
COLOR KILLER FILTER
B G R CLAMP PULSE
32 f
H
VCO FILTER
32 f
H
VCO FILTER
32 f
H
VCO FILTER
HORIZONTAL
AFC FILTER
f
V
50/60 SWITCH
COLOR KILLER
BLANKING PULSE
HD PULSE VD PULSE
Y
R-Y R-Y B-Y B-Y
Y
COLOR CONTROL
TINT CONTROL
IC