iLO IWF2706 - Page 28

7-3
L4803BLIF
IF/Video Block Diagram
2247
38
CF32
S-SW
TO CRT/H.V. BLOCK
WH301A
TO CRT/H.V. BLOCK WH301B
BLUE5 GREEN4 RED3
IC31 (IF SIGNAL PROCESS)
H-SYNC PROCESS CIRCUIT
C-SYNC SEPA.
V-SYNC PROCESS CIRCUIT
VCXO
10BIT ADC
SW
COMP-Y TUNER LINE2 LINE1 DTV-Y S-VIDEO-Y
ACC BPF
NTSC DEMO
RGB DAC
RGB DRIVE
29
37
80
7
18 19 14 25
ACL
Q322
H-DRIVE
FBP-IN
RAMP-OUT
EW-OUT
45
SAW FILTER
VIF AMP
VIDEO DET
VCO
4.5MHz FILTER
EQ AMP
SIF TRAP
AMP
AFT
SIF AMP
16 11
13
17
4
7
1 8
TU11
SF11
ANALOG-OUT
11
31
SIF
51 50 49
MAIN CBA
VIDEO SIGNALRF/IF SIGNAL
AUDIO SIGNAL
TO AUDIO BLOCK
IC301
TV MICON/VIDEO /AUDIO/CHROMA /DEFLECTION
JK721 S-VIDEO-IN
CY
X301 3.58MHz
TO SYSTEM CONTROL BLOCK
VIDEO-Y-IN
TO DTV BLOCK
DTV-Y DTV-Cb DTV-Cr
VIDEO-Cb-IN VIDEO-Cr-IN
JK741
35 34 33
(REAR) JK701 VIDEO-IN2 JK711 VIDEO-IN1 (FRONT)
42 40 41
AFT-IN
10BIT ADC
MPX
LIMINANCE SIGNAL PROCESS
MATRIX OSD MIX,
CONTRAST, BRIGHT
ACL/ABL
CHROMINANCE SIGNAL PROCESS
VRAMP/EW OUTPUT
WF10
(REAR) (REAR) (REAR)