LG MX8550, Service Manual

Page: 35 / 190

- 34/148 - LG Electronics Inc.
M X8550
[Figure 2-2] Block Diagram of Digital/Voice Processing Part
1.
3M
C
M
O
S,
Image Se
nsor
12
3
45
6
78
9
*
0
#
EB
I1
JT
A
G
I/F
A
R
M
926
EJ
S
w
ith
Ja
zelle
PLL
Mo
d
e
m
QDS
P
400
0
QDS
P
400
0
MSM Core
CD
M
A
Pro
ces
sor
1X
,
1X
E
V
-D
O
GSM
/GPR
S
Pro
ces
sor
gpsOne
Pro
ces
sor
Bl
uetooth
1.
1
Pro
ces
sor
Tx
DA
C
P
rocess
o
rs
Rx A
D
C
SBI
Ke
y
p
ad I
/F
SD
/SDI
O
US
B
1.1
F
S
UA
R
T1
UA
R
T2
/RUIM
1
Conn
e
c
ti
v
it
y
UA
R
T3
/RUIM
2
MP
3
, A
A
C
,
EV
RC
,
QCEL
P
AM
R
, C
MX
,
MI
D
I
A
udi
o
MP
EG
-4
H.
263
,
H
.264
Vide
o
OpenGL
®E
S
3
D
, 2
D
Gr
a
phi
c
s
Ca
m
e
ra
P
rocess
in
g
EBI
1
EBI
2
Dua
l M
e
m
o
ry
B
u
ses
MSM
65
00
512
M
B
it
SDRA
M
1G
B
it
N
A
ND
MCP
512
M
b
it
NA
N
D
EB
I2
LCD 2.0
’’
QVG
A
T
ouc
h
Key
S
e
ns
or
Blue
to
o
th
R
F
M
odul
e
Key
p
ad
Mi
c
ro
S
D
MSM
DSP
RB
04
TY
9000
A
000
A
M
G
F
K9
F
120
8U0
C
-JIB
0
AR
M
926
EJ
-S
H
/W Vi
deo Cod
ec
(M
P
E
G
4
/H
.263
)
PLL
?
Ma
x.
clock up to
192
M
H
z
D
M
A
Contr
o
ll
e
r
LCD B
y
pass
DSP
Cor
e
64
M
b
it
SDRA
M
M
e
mo
ry
C
o
n
tro
ller
N
A
ND Fl
ash U
p
to
8
GB
,
M
O
VI
NA
ND
Memor
y
MV
8635
N
A
ND I
/F
Storag
e I
/F
S
D
/MMC
/T
-F
la
s
h
VL
C
/VL
D
BI
T pac
k/
unpac
k
Vide
o
QSXG
A
(5
M
)
to CIF image size
Color Effect
JP
EG En
/D
ec
odi
ng up to Q
S
XG
A
Stil
l I
m
ag
e
Rotation
Sup
erimpose
Di
gi
tal
Zoom X
16
LCD 8/
12
/1
6
/18
bit
2
D
A
ccelerator
?
OSD
, Ov
erla
y, B
itB
L
T
Picture In Picture
(PIP
)
2
D Gr
aph
ic
CM
O
S
o
r CCD
w
ith
Q
S
X
G
A(5
M
) t
o
C
IF
Y
U
V 422
Format
Im
a
g
e S
en
sor
I
/F
I2
S
I
n
/O
u
t
Enc
odi
ng
: A
A
C
,
MP
3,
A
M
R
-NB
, WA
V
Dec
odi
ng
: AA
C
, AA
C
+
,
M
P
3
,
W
M
A, RA
,
A
M
R
-N
B
, G
723
.1
,
WA
V
A
udi
o I
/F
128
v
o
ices M
IDI S
y
nth
esizer
UA
R
T
SP
I1
/SP
I2
I2
C
Pe
ri
phe
ra
l I
/F
PW
M US
B
2
.0
w
it
h
HS
/F
S
w
ith mass storage
or M
T
P
GPIO
EB
I2
16
b
it
8b
it
16
b
it
Wi
de Vi
e
w
OK
Jo
g
Wh
eel
B
5
V
-14202
-DN
01
AD
C
AG
C
Sampling R
ate
Conv
er
ter
(S
R
C
)
48
kH
z sampling
&
Sep
a
rate v
o
lume control
(L
, R
)
HP
F
AG
C
Fade I
n/O
u
t
3
D
Su
rr
ound
Pe
ak Indicator
Spe
c
tr
um I
ndi
cator
(7
B
a
n
d)
Bass Bo
ost
Noise Gate
Di
gi
tal
Equal
iz
e
r(10 Band
)
Band Ex
pand
er
Compre
sso
r
Karaoke
Voic
e/
Pi
tch Cha
nge
A
udi
o
Engi
ne D
S
P
D
y
nami
c Range C
ontr
o
l
(D
R
C
)
8 ~
48
kH
z
rate
16
bit Stereo
&
192
kH
z sampling
fr
equenc
y
DA
C
Stereo H
P
amp
M
o
n
o/
D
ig
ital
S
p
ea
ke
r a
m
p
Clas
s D
N
o
n
-clip
b
y
S
/W
700
mW
16
b
it
8b
it
W
h
eel
L
ight
I2
C
B
-Register
M
A
X 972
2B
CODEC YMU
800
T
o
MS
M
:
Vo
ic
e C
a
ll
To COD
E
C: R
e
c
o
rd
in
g
flix
MI
C
MI
C
I
N
Mo
n
o
A-
IN
Stereo
Charge Pump
(A
A
T
3123
)
& 4
*GP
IO
Exp
a
nd
er
(4
*AA
T
4290)
I2
S
D
-I
N
I2
S
D
-O
U
T
M
o
n
o
Sp
ea
ker
181
3
size
I2
C
from
MS
M
UA
R
T
18
pi
n M
M
I
CHA
RGER
Stereo He
ads
e
t
US
B
HP
a
m
p
Hos
t I
/F
4
pol
e
18
pin
MM
I
Stereo He
ads
e
t
4
pole Ea
rjack
Fr
om H
P
amp
To M
S
M
Fr
om H
P
amp
To M
S
M
T
o
DS
P(
US
B
2.
0
HS
)
(D
edic
ated to transfer
mu
sic file into
D
S
P N
A
N
D)
To M
S
M
(U
S
B
1
.1
F
S
)
To Charger
I
C
To M
S
M
4
bit
8b
it
Receiv
e
r
MI
C
I
N
EA
R
MI
C
I
N
A-
O
U
T
Blue
to
o
th v
1
.1
Mo
to
r
& Su
ppo
rt
Vib
-
T
ouc
h
PD
M
UA
R
T
u
p
t
o
468
kb
p
s
US
B
1
.1
F
S
RX
0
I
RX
0
Q
RX
1
I
RX
1
Q
RFR
650
0
RF to BB
Conv
er
ter
SB
I
Loop Fil
te
r
fo
r G
P
S
RFT
615
0
BB to RF
Conv
er
ter
DC
N
PCS
SB
I
TX
I
TX
Q
Loop Fil
te
r
fo
r CDM
A
Tx
Dual PA
M
B
u
ffe
r
TC
XO
B
lu
e
tooth
COD
E
C
T x Rx
T x Rx
Dip l exer
D_
L_
IN
P
_
L_
IN
P
_
L_
OUT
D
_
L_
OUT
P_
IN
D_
IN
G
_
IN
G
_
L_
IN
G
_L
_
OUT
Dua
l RX
SA
W
filt
er
GPS
S
A
W
Fil
te
r
GPS
S
A
W
Fil
te
r
GPS LN
A
GPS
M
obi
le
DCN
D
uplexer
PC
S
D
uplexer
CD
M
A
Mob
il
e
CD
M
A
AN
T
.
GP
S
AN
T
.
Hi
gh
Efficienc
y
HD
ET
DCN
C
oup
le
r
PC
S
C
oup
le
r
PC
S
SA
W
Fil
te
r
DCN
SA
W
Fil
te
r
Pow
e
r
US
B
TC
V
R
P
M
IC
L
P391
9
LDOX
9
2
XCompa
ra
tor
Li
-I
o
n Li
ne
a
r
Charger Con
trol
2
XD
C
/D
C
8
b
it
A
DC
for
ba
tt
e
ry
R
ESE
T
T
h
e
rm
a
l Sh
utdow
n
O
N
/O
FF
Cont
ro
l
&
I2
C
I
/F
M
o
me
n
tary
Po
w
er
L
o
ss
Detec
ti
o
n
S
e
pa
ra
te
LD
O
6*
L
D
O
(RI
1180
D)
fo
r D
S
P
3*
L
D
O
(RI
1114
D
)
fo
r C
A
M
Dual
Ch
ar
g
e
r I
S
L629
9A
5
V
C
ra
ddle
(550
m
A
)
5
V
U
S
B
(380
m
A
)
SO
240000
Dual LED
*8
HS
MF
-C
1
6
x
VX
8550
Logic Par
t
Block Diagram
RF Fro
nt En
d
B
u
ffe
re
d
TCX
O
B
u
ffe
re
d
TCX
O
Need
s t
o
make su
re
th
at
st
at
e
of
I
/O
wo
ul
d
be
p
u
lle
d t
o
hi
g
h or
low
d
u
ri
ng
slee
p
s
ta
te
in or
de
r
not
to
b
e
fl
oa
te
d
Z3X-BOX.COM