UNITED TVC5044, Service Manual

Page: 29 / 92

1-7-4
T6627BL
T
TV Block Diagram
X301
4.43MHz
CL301A
CL302A
IC301 (VIDEO/AUDIO/CHROMA/DEFLECTION/IF)
IC201
(SYSTEM CONTROL/OSD)
V-SYNC
TEXT-L
OSD-R
OSD-G
OSD-B
OSD-BLK
H-SYNC
SLOW-SW
C-VIDEO
C-VIDEO
RAPID-SW
OSD-G
OSD-R
OSD-B
59
58
60
62
63
64
82
TU-VIDEO
TO
VIDEO BLOCK
TO
CRT/H.V. BLOCK
CL301B
TO
CRT/H.V. BLOCK
CL302B
BLUE 2
GREEN 1
RED
SDA
SCL
TO
SERVO/SYSTEM
CONTROL BLOCK
TO
VIDEO
BLOCK
IC901 (TELETEXT DECODER)
REC VIDEO SIGNAL PB VIDEO SIGNAL Mode : SP/REC
WF18
WF17
WF10
WF11
CN303
CN901 CN751
CN752 CN902
X901
(NO CONNECTION)
CN303 is used for
adjustment at factory
I
2
C-OPEN
3
FBP 2
H-DRIVE 1
ACL 5
V-RAMP-FB 4
V-DRIVE 3
MAIN CBA
32
21
17
12
13
30
28
20
27
11
10
14
31
15
16
6
7
43
36
VIDEO 34
CHROMA
TRAP
SERIAL
I/F
INTELLIGENT
MONITORING
CHROMA
BPF
PAL
DECODER SECAM
DECODER
BASE BAND
1H DELAY LINE
SYNC
SEPARATION
LUMA
SIGNAL
PROCESS
CIRCUIT
H-SYNC
PROCESS
CIRCUIT V-SYNC
PROCESS
CIRCUIT
OSD MIX/RBG MATRIX/
BLANKING
TUNER
LINE/PB
TUNER
LINE/PB
CLOCK
CONTROL
CIRCUIT
37
23
36
50
49
35
32
33
34
41
42
40
SW CTL
IC703 (SW)
5
3
4
2
1
15
12
13
14
7
16
8
11
15
56
61
65
68
I
2
C I/F
TELETEXT
DECODER
OSC/CLOCK
GENERATOR
TEXT CBA
12MHz
OSC
JK703
10 9 11
Q710
Q702
Q706
Q704
+5V
+5V
Q711
SLOW-SW-IN
RGB-CONT
RAPID-SW-IN
DISPLAY
TIMING
ADC/
DATA SLICER
INV
INT.MONITOR 1
I
2
C-OPEN 2
SDA 4
SCL 5
2 2 OSD-BLK
4 4 OSD-B
6 6 OSD-G
3 3 OSD-R
5 5 Y-SW-OUT
2 2 H-SYNC
4 4 SDA
3 3 SCL
1 1 V-SYNC