7-3
L3821BLIF
IF/Video Block Diagram
22
47
38
CF32
S-SW
TO
CR
T/H.V
. BLOCK
WH301A
TO
CR
T/H.V
. BLOCK
WH301B
BLUE
5
GREEN
4
RED
3
IC31
(IF SIGNAL PR
OCESS)
H-SYNC
PR
OCESS
CIRCUIT
C-SYNC
SEP
A.
V
-SYNC
PR
OCESS
CIRCUIT
VCXO
10BIT
ADC
SW
COMP-Y
TUNER
LINE2
LINE1
DTV
-Y
S-VIDEO-Y
A
C
C
BPF
NTSC
DEMO
RGB
DA
C
RGB
DRIVE
29
37
80
7
18
19
14
25
AC
L
Q322
H-DRIVE
FBP-IN
RAMP-OUT
EW
-OUT
45
SA
W
FIL
TER
VIF
AMP
VIDEO
DET
VCO
4.5MHz
FIL
TER
EQ
AMP
SIF
TRAP
AMP
AFT
SIF
AMP
16
11
13
17
4
7
1
8
TU11
SF11
ANALOG-OUT
8
31
SIF
51
50
49
MAIN CB
A
VIDEO SIGNAL
RF/IF SIGNAL
A
U
DIO SIGNAL
TO
A
U
DIO BLOCK
IC301
TV MICON/VIDEO
/A
UDIO/CHR
OMA
/DEFLECTION
JK721
S-VIDEO-IN
CY
X301
3.58MHz
T
O
SYSTEM
CONTR
OL BLOCK
VIDEO-Y
-IN
T
O
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
(FR
ONT)
42
40
41
AFT
-IN
10BIT
ADC
MPX
LIMINANCE
SIGNAL PR
OCESS
MA
TRIX
OSD MIX,
CONTRAST
,
BRIGHT
A
CL/ABL
CHR
OMINANCE
SIGNAL PR
OCESS
VRAMP/EW
OUTPUT
WF10
(REAR)
(REAR)
(REAR)
Содержание EWFG2705
Страница 1: ...SERVICE MANUAL 27 ANALOG DIGITAL COLOR TELEVISION EWFG2705 ...
Страница 40: ...8 9 Digital 2 3 Schematic Diagram L3821SCD2 DIGITAL 2 3 Ref No Position IC253 K 1 Q281 Q 4 IC TRANSISTOR ...
Страница 50: ...12 2 L3821PEX Packing S 7 S 5 S 1 Tape X 5 X 2 X 1 FRONT X 3 S 2 S 3 S 6 S 4 Packing tape ...
Страница 59: ...EWFG2705 L3821UB 2005 07 27 ...