Sylvania SRT2227X Service Manual page 22

IF/Video Block Diagram
RF/IF SIGNAL
TU1
SF1
SAW
IF 11
FILTER
TP301
AGC
AGC 1
SCL 4
SDA 5
EXT.CLK 8
WF16
JK701
VIDEO-IN
(FRONT)
JK704
VIDEO-IN
(REAR)
6-3
VIDEO SIGNAL AUDIO SIGNAL
IC31 (IF SIGNAL PROCESS)
CF31
20
VIF VIDEO 4.5MHz
5
21 AMP DET TRAP
CF32
VCO
4.5MHz
FILTER
RF
17
AGC
IF AGC DET
AFT
AMP
14
IC111
TV MICON/VIDEO
/AUDIO/CHROMA
/DEFLECTION
58 SCL
56 SDA
32
WF1
26
TUNER
LINE
24
WF2
LPF
14
11
OSD
EQ
3
AMP
FM AF
8
DET AMP
VCO F/B
LPF
X301
3.58MHz
16
VCXO
LUMINANCE
PROCESS
CIRCUIT
RGB MATRIX
/COLOR CONT
CHROMINANCE
PROCESS
CIRCUIT
H-SYNC
PROCESS
CIRCUIT
V-SYNC
PROCESS
CIRCUIT
MAIN CBA
1
WF6
11
7
Q31
22
16
OSD SW RGB DRIVE 52
CONTRAST /CUT OFF
51
BRIGHTNESS /H.V. BLK
50
53
46
45
38
37
6-4
TO
TU-AUDIO
AUDIO BLOCK
FROM/TO
INPUT0
SYSTEM
AGC
CONTROL
BLOCK
WH301A
5 BLUE
TO
4 GREEN
CRT/H.V. BLOCK
3 RED WH301B
ACL
H-DRIVE
FROM/TO
FBP
CRT/H.V. BLOCK
RAMP-OUT
V-RAMP-F/B
L6600BLIF