Emerson SC319C Service Manual page 32

Chroma/Tuner Block Diagram
TU001
AGC 1
IF 11
SDA 5
SCL 4
FSC 8
(NO CONNECTION) CN303
INT.MONITOR 1
2
I C-OPEN 2
SDA 4
SCL 5
CN303 is used for
adjustment at factory
SCL
TO SERVO/SYSTEM
SDA
CONTROL BLOCK
2
I C-OPEN
IC201
(SYSTEM CONTROL/OSD)
1-8-7
J191
RF AGC-OUT
IC301 VIDEO/AUDIO/CHROMA/DEFLECTION/IF
59
SF001
63
SAW
FILTER
64
43
26
SERIAL
I/F
27
INTELLIGENT
18
MONITORING
WF2
31
SYNC
SEPARATION
CV-IN 56
V-SYNC
PROCESS
CIRCUIT
OSD-R 64 23
OSD-G 63 22
OSD-B 62 21
OSD-BLK 60 24
WF18
V-SYNC 59 20
WF17
H-SYNC 58 19
WF10
5
6
REC-AUDIO SIGNAL REC VIDEO SIGNAL
IF SIGNAL
CONTROL
CIRCUIT
TUNER
LINE
TUNER
LINE
CHROMA CHROMA
TRAP BPF
LUMA CHROMA
SIGNAL SIGNAL
PROCESS PROCESS
CIRCUIT CIRCUIT
H-SYNC
PROCESS
CIRCUIT
OSD MIX/RBG MATRIX/
BLANKING
PB VIDEO SIGNAL Mode : SP/REC
MAIN CBA
CF301
Q301
4.5MHz
BUFFER TU VIDEO
TRAP
CF302
4.5MHz
TU AUDIO TO AUDIO BLOCK
58
BPF
41 VIDEO
38 EXT V-IN
X301
3.58MHz
CLOCK
CONTROL 34
CIRCUIT
J233
B-OUT
CL504
16 4 BLUE
15 3 GREEN
14 2 RED
WF11
10 AFC
11 H-DRIVE
33 ACL
V-RAMP-NF
V-DRIVE
1-8-8
TO VIDEO BLOCK
FROM
VIDEO BLOCK
TO
CRT/H.V. BLOCK
CL504A
FROM/TO
CRT/H.V. BLOCK
T7300BLC