NAD T752, Service Manual

Page: 46 / 63

44
LC74763
S-VIDEO BOARD: U4101
Serial- parallel converter
Composite synchro- nization
signal control
AFC circuit
Sync
separator
Sync detector
Composite synchronizat- i
on
s
ig
na
l
separator control
Timing generator
character
output
control
Background control Vi
de
o
ou
tp
ut
c
on
tro
l
Synchronization sig
na
l g
en
er
at
or
Horizontal character size register
Horizontal display position register
Vertical display position register
Vertical character
size register
Horizontal
size
counter
Horizontal dot counter
Vertical
dot counter
Flashing/ reversal control register
Display control register
RAM write address counter
Di
sp
la
y R
AM
Font ROM
SHift
register
Decoder
Decoder
Flashing/ reversal control circuit
Horizontal display position detection
Vertical display position detection
Character control counter
Line control counter
Vertical
size
counter
8-bit latch
and
commend decoder
SECAM
525/625
NTSC/P
AL
3.58/4.43
SYNCDET
VCO IN
VCO OUT
FC
AMP
IN
AMP
OUT
PD OUT
SYN IN
SEP
C
HSYN OUT
VSYN OUT
Xtal IN1
Xtal OUT1
Xtal IN2
Xtal OUT2
CV CR
CV IN
CV OUT
VDD1 VDD2
VSS
CS
SIN
SCLK
RST