Topfield TF4000FI, Руководство по обслуживанию, Страница: 8 / 62

8
4. Block Diagram of The Main Board
D
R
A
M
fo
r TS
B
uf
fe
r
&
S
ys
te
m
Audi
o DA
C
(U
D
A
1334)
FL
A
S
H
Me
m
or
y
Fr
on
t Bo
ar
d
I/
F
Pr
og
ra
m
Do
w
nl
oa
d
Po
rt
(R
S232
)
EEP
R
O
M
(
24L
C0
2)
TUN
ER
VCXO
C
on
nect
or
f
or
Man
uf
act
ur
e
Ci
nc
h
out
put
Sy
st
em
C
ont
ro
l
AS
IC
(T
F301
SC
15)
AV
Co
nt
ro
l
RF
Mo
dul
at
or
L
N
B
p
ow
er
, 22
kh
z
ge
ne
ra
to
r
II
C
bu
s for
RF
m
od
ul
at
or
IIC
Ch
an
ne
l D
at
a
V
oltag
e
De
te
ct
or
(R
es
et
I
C
)
(E
L
M
9727NB
A
)
IB
M
39ST
B
025
00
(V
ULCA
N
)
SP
DIF
Out
put
(O
ptio
na
l)
V
id
eo
Out
put