Daewoo DTU-28A8FZP, Service Manual

Page: 16 / 72

-16-
CP-530 Service Manual
4.1.2. BLOCK DIAGRAM
NXP Semiconductors
UOC-T O P-80 N2 series
Signal pr ocessor for CRT TV
Fig 2. B lock diagram of th e “STEREO” TV processor
V-
D
R
IVE EW
D
EH
T
O
QSS SOUND IF
VISIO
N
IF/A
GC/
A
F
C
PLL DEMOD. VI
DE
O AMP.
SO
UN
D T
R
AP
G
R
OU
P DE
LA
Y
VI
DE
O SWI
T
C
H
VI
DE
O I
DE
N
T
.
VI
DE
O FILT
ERS
DE
COD
E
R
PAL/
SECAM/NTSC
BASE-BAND DE
LA
Y
L
INE
H/
V SY
NC
SEP.
H-OSC. + PLL
2
nd
LO
OP
H-
SHI
F
T
H-
DRIV
E
VE
RTICA
L
GE
OMET
RY
& EA
S
T
-W
EST
AG
COU
T
VIFIN
C2/
C3
/C4/
CVBS4/
Y
4
H-
OUT
PEAKING
SCAN VELOCITY
RGB/
YP
R
P
B
CON.
BRI
RO/
G
O
/
B
O
/
BLKIN/
RGB C
ONTROL
O
S
D/
TE
XT
I
NS
E
R
T
WH
ITE
-P. ADJ
.
CONTR/
BRIGHTN
RGB MA
TRIX
H/
V
REF
Y
DE
LA
Y A
D
J.
SKIN TONE
U/
V T
INT
SATURATION
MODULATION
CVBS2/
Y
2
YSY
N
C
IFVO
/SV
O
/PIP
SO
UN
D PLL
R3/
G3
/
B3
/
IN
S
W
3
YP
B
P
R
BLUE/
B
LACK-STRETCH
GA
MMA C
ONT
ROL
BCLIN
CL
K GE
NE
RATI
O
N
I
2
C-BUS
//
/
//
/
//
//
//
CSO
CSI
H/
VDI
SP
O
H/
VD
ISPI
CLKI
CLKO IREFRGB R/G/B
VD
S
INS. CIRN
CORB SDA/SCL IREF
IREFO
CVBSREF CVBS IN
RESET
TMSE
L
o-PROC ESSO R / TELETEXT DECODE R / OSD
AM
AU
DIO
SEL
EC
T
SCART/
C
INCH
A/
D CON
V
E
R
T
O
R
AL
L-
ST
AN
DA
RD
SA
T
VG
UA
RD/
S
WIO
STEREO
IN
/O
UT
P
R
-3/
Y-
3
P
B
-3
QSS-MIXER
SWITCH
AU
DI
O
IN5
R
AU
DI
OIN
5
L
A
U
D
I
O
IN5L
SVM
C2/C3/C4
CVB
S
3
/
Y3
SI
FI
N
AG
C
SIFAGC
AGC2SIF
A
M
DE
MO
DU
LA
T
O
R
DE
CODE
R
LS-
OU
T
L
R
AUD
IO
CON
T
R
O
L
VOLUM
E
TR
EB
LE
/B
ASS
FEAT
U
R
ES
DA
Cs
I/O
s
CCC/
BLACK ADJ.