Emerson EWC1303A - Page 30

1-7-4
Chroma/Tuner Block Diagram
T5553BLC
X301 3.58MHz
CL502B
SAW FILTER
SF001
IC301 (CHROMA/DEFLECTION SIGNAL PROCESS)
TU001
IF
AGC
SDA
SCL
FSC
1
11
5
4 8
IC201 (SYSTEM CONTROL/OSD)
V-SYNC
H-SYNC
OSD-R
OSD-G
OSD-B
59 58 60 62 63 64
OSD-BLK
TU-AUDIO IF-MUTE
TO AUDIO BLOCK TO SERVO/ SYSTEM CONTROL BLOCK
TU VIDEO TO VIDEO BLOCK
LINE-VIDEO
TO VIDEO BLOCK
VIDEO
TO CRT/H.V. BLOCK CL502A
TO CRT/H.V. BLOCK
2
GREEN3 BLUE
AFC H-DRIVE ACL V-RAMP-NF V-DRIVE
SDA
AFT-IN
SCL
TO SERVO/SYSTEM CONTROL BLOCK
REC VIDEO SIGNAL PB VIDEO SIGNAL Mode : SP/REC
REC-AUDIO SIGNAL
WF18
WF17
WF10
WF11
TP302
AFC
56
CV-IN
4
MAIN CBA
18
34 35
8 9
31 13 10 11 12 15 14
4 5 3 2
40 41
16
6
20 25 23
CHROMA TRAP
SERIAL I/F
INTELLIGENT MONITORING
CHROMA BPF
SYNC SEPARATION
LUMA SIGNAL PROCESS CIRCUIT
CHROMA SIGNAL PROCESS CIRCUIT
H-SYNC PROCESS CIRCUIT
V-SYNC PROCESS CIRCUIT
OSD MIX/RBG MATRIX/ BLIGHT/DRIVE AMP/ HV BLANKING
TUNER
TUNER
FILTER TUNING
VXCO
CF031 CF032
VCO F/B
IC001 (IF SIGNAL PROCESS)
VIF AMP
VIDEO DET
VCO
4.5MHz FILTER
LPF
IF AGC DET
EQ AMP
RF AGC
AMP
AFT
4.5MHz TRAP
FM DET
AF AMP
16
11 13
6
17
4
2 7
1 9
14
C-SYNC
LINE
VCR VCR
LINE
RED
FM/TV-SW
WF7