Service manual

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