LG LST-3410A, Service Manual

Page: 55 / 135

3-68
CPU [Pow
er
PC 405G
P]
- Revi
si
on E
- S
DRA
M
Co
n
tro
lle
r
- P
e
ri
pheral
Control
le
r
- PC
I B
ridge
, Loc
a
l B
U
S I/F
- Se
ri
a
l(
2
), G
P
IO
, I2
C
HD-II(1.0)[LG
DT1
102C]
-T
P
De-M
u
x
- M
PEG D
ecoding :
M
P
@
H
L
-Form
at
Convert
er
-H
os
t I/F
, M
e
mor
y I/F
-D
igit
a
l I/F
-Vi
d
e
o
DA
C,
NT
S
C
E
n
co
d
e
r
-A
C
-3
D
e
c
ode
r/
SPD
IF In/out
S
DRA
M
32M
B
P
e
ri
pheral B
u
s
I2
C_
C,D
ProbeR
OM
(0.
5M
B
)
EEPR
O
M
(32KB)
RS
-232C
Dri
ver
C
ontrol GP
IO
RGB, Dig
ita
l I
n
CVBS,
Y
/C O
u
t
DP
L
L
[LGD
T9101A
]
Et
he
rn
e
t
I/F
I2
C
_
A
RGB Out
VSB
TP
M
PEG
-2
Encoder
[BCM
7040]
T
P
N
-II
[LGDT
1303]
- P
C
I I/F
- TP
-C
ontr
o
l
83.3M
H
z
S
DRA
M
(2M
x32Bi
t)
S
DRA
M
(4M
x16Bi
t)
PC
I-
ID
E
C
ont
roller
[A
RS
0303D]
H
D
-2_C
LK
R
+2
.5
V
R
+1.8V
R
L_+
5.0V
I2
C
C
o
n
tro
lle
r-A
S
DRA
M
(16M
x16Bi
t)
S
DRA
M
(16M
x16Bi
t)
Fl
ash
4M
B
V
ideo
A
udi
o
PES
Fl
ash
4M
B
8M
B
R
+1.8V
DV
I T
x
[S
iI170]
64-B
it I/F
S
DRA
M
(4M
x16Bi
t)
S
DRA
M
(4M
x16Bi
t)
S
DRA
M
(4M
x16Bi
t)
S
DRA
M
(4M
x16Bi
t)
PC
I Bu
s
Se
rv
ic
e
Por
t
R,
G
,B,
HS
,V
S
Opti
cal
SPD
IF O
u
t
A
udio
P
rocessor
[M
S
P
4450]
V
SB
Decoder
[LGDT
3302]
T
uner
(A
T
S
C/
QA
M
/NT
S
C
)
S-
V
ideo Out
Mi
C
O
M
[M
37272]
I2
C
_
A
Po
w
e
r_
O
n
/O
ff
8M
H
z
Gem
s
tar
P
rocessor
[GS
501]
Gem
s
tar
NTS
C
De
code
r
[GS
502]
S
DRA
M
(4M
x16Bi
t)
VCXO
27M
H
z
V
id
eo
AM
P
V
id
eo
AM
P
TX
,R
X
I
/F
TX
,R
X
CPL
D
I/
F
S
DRA
M
(4M
x16Bi
t)
2nf_I
F
VSB TP
A
udi
o
AM
P
Di
g
ital
A
udio
Out
OS
C
33.33M
H
z
OS
C
12M
H
z
Clo
c
k
Dr
ive
r
PCI Clo
c
k
Clo
c
k
Dr
ive
r
C
P
LD
_C
LK
T
P
N
-II
_C
LK
X
-T
al
12M
H
z
SPDI
F
Out
SPDI
F
Out
S
y
stem
CP
L
D
S
D
RA
M
32M
B
32-B
it I/F
DV
I Ou
t
Di
g
ital
V
ideo Out
NT
S
C
Decoder
[V
P
X
3226]
P
e
ri
pheral
B
u
s
ENC TP
1394 T
P
Out
Front Panel
VFD
Ke
y
In
S/W
&
Ir
in
V
FD
C
ontr
o
ller
Fl
ash
4M
B
RF
Sw
it
c
h
1394 -1 1394 -2
1394
Control
le
r
[T
SB
43C
A
43]
CV
BS
I
n
-1
A
udio R
/L
In
CV
BS
-1 Ou
t
A
udio R
/L
out
Po
w
e
r
M
a
in B
o
a
rd:+
3
.3
V
, +
5
V ,+
9
V
,
S
T
+31V
,S
T
+
5.
5V
,S
T
+
3.
8V
HDD p
o
w
er :
+12V
,+
5V
V
F
D P
o
w
e
r:
+28V
,-
24V
,-
21.
5
1394 T
P
In
1394 T
P
I
n
1394
P
o
rt-1
1394
P
o
rt-2
139
4
Po
rt 1 &
2
OS
C
13.5M
H
24.576M
H
z
1394 T
P
Ou
t
R
+8
V
18.432
MH
z
Gem
S
tar
Mi
C
O
M
V
id
eo
AM
P
C
abl
e I
n
T
e
rres
tri
al
I
n
R
L_+
3.3V
R
+1.8V
R
+5
V
20.25
MH
z
HDD
MU
X
CP
L
D
TPN
TP
O
u
t_
0
TPN
TP
O
u
t_
1
TPN
TP
In
_
0
TPN
TP
in
_
1
ENC TP
IDE C on.
CV
BS
-2 Ou
t
A
udio R
/L
out
V
id
eo
AM
P
A
udi
o
AM
P
CV
BS
I
n
-2
A
udio R
/L
In
SI
F
CVBS
Y,
P
b
,P
r
A
udi
o
AD
C
I2
C
_
A
R
+2.5V
R
+1.8V
2. TOTAL BLOCK DIAGRAM