Sylvania 6319CCB, Service Manual, Page: 31 / 108

T7204BLC 1-8-7 1-8-8
32
21
17
12
29
25
27
20
28
30
5
1
64
62
10
VCXO
INV
V.RAMP
REF
FILTER
VERTICAL
COUNT
DOWN
RGB
EXT.
INPUT
X301
3.58MHz
HORIZONTAL
COUNT
DOWN
ADJ
DET VCC
ADJ
RGB MATRIX
CONTRAST
BRIGHT CLAMP
CLAMP
DELAY
HV
BLK
CN301 TO CN504
CN302 TO CN503
DRIVE
AMP
VIDEO
MUTE
VIDEO
TONE
BLACK
STRETCH
GAMMA
H
VCO
BGP
GENE.
KILLER
DET
CHROMA
BPF
V-SYNC
TRIG.
SYNC
SEPA
CHROMA
TRAP
VCO
ADJ
4.5MHz
TRAP
CF301
4.5MHz
BPF
CF302
VIDEO
DET VIF
AMP
SAW
FILTER
SF001
APC
DET
ACC
DET
ACC
HPF
AFT
IF AGC RF AGC
IC301 VIDEO/AUDIO/CHROMA/DEFLECTION/IF
VCO LOCK DET
TUNER
LINE
CHROMA
APC DET
14
31
15
16
6
7
34
36
49
57
DEMODULATOR
AFC-2
AFC-1
H.COINCIDENCE
EQ
ELIMINATE
SERIAL
I/F
TUNER
LINE
TU001
IF
AGC
J138
AGC
SDA
SCL
LOCK
1
11
5
4
8
J281
GND
IC201
(SYSTEM CONTROL/OSD)
V-SYNC
H-SYNC
OSD-R
OSD-G
OSD-B
C-VIDEO C-VIDEO 56
59
58
60
62
63
64
FROM
VIDEO BLOCK
FAST-BLK
FROM/TO
CRT/H.V. BLOCK
TU AUDIO TO AUDIO BLOCK
TU VIDEO TO VIDEO BLOCK
EXT V-IN
FROM
VIDEO BLOCK VIDEO
TO
CRT/H.V. BLOCK
BLUE 2
GREEN 3
RED 4
AFC 2
H-DRIVE 3
ACL 6
V-RAMP-NF 4
V-DRIVE 7
Chroma/Tuner Block Diagram
Y SIGNAL C SIGNAL RF/IF SIGNAL AUDIO SIGNAL
" " = SMD
SDA
SCL
TO SERVO/SYSTEM
CONTROL BLOCK
HPF
TRAP
SW
Q303
BUFFER
REC VIDEO SIGNAL PB VIDEO SIGNAL Mode : SP/REC REC-AUDIO SIGNAL PB-AUDIO SIGNAL
WF18
WF17
WF10
WF11
J070
B-OUT
CN303 (NO CONNECTION)
CN303 is used for
adjustment at factory
INT.MONITOR 1
2
SDA 4
SCL 5
I
2
C-OPEN
I
2
C-OPEN
43
INTELLIGENT
MONITORING