LG KF700, Руководство по обслуживанию

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
- 33 -
[Fig. 3.10] Simplified Block Diagram of Baseband
MSM
6280
MT
ECK
ISP
(WV9319)
MCP
2Gb
N
A
ND
+
1G
b
S
D
R
A
M
EB
I2
_D
A
T
A(
0
:15
)
NA
N
D
_
C
S
_
N
NA
ND_
A
L
E
NA
ND_
C
L
E
EB
I2_
O
E_
N
EB
I2
_
W
E_
N
NA
N
D
_
R
E
A
D
Y
RE
S
O
UT_
N
SD
R
A
M
_
D
A
T
A
(0
:3
1
)
SD
R
A
M
_
A
D
D
R
(0
:1
4
)
SD
R
A
M
_
C
L
K
SD
R
A
M
_
C
S
_
N
SD
R
A
M
_
R
A
S_
N
SD
R
A
M
_
C
A
S_
N
SD
R
A
M
_
WE_
N
SD
R
A
M
_
C
L
K
_
E
N
SD
R
A
M
_
D
Q
M(
0
:3)
VR
EG_
M
SM
P_
2.7
V
VR
EG_
M
SM
E_1
.8V
Fr
o
m
P
M
IC
PMIC
(P
M
6
6
5
0
)
VR
E
G
_
M
SM
C
_1.
25V
VR
EG_M
SM
E_1.
8V
VR
EG_M
SM
P_2.
7V
VR
E
G
_M
SMA
_
2
.6V
US
IM
_
D
A
T
A
/ C
L
K
/
RS
T
_
N
US
B
_
O
E
_
N
/
D
A
T
/ SE
0
TCX
O
_
E
N
BU
F
F
_
T
C
X
O
RE
SET
_IN
_
N
SSB
D
T
_
P
M
PM
_
IN
T
_
N
PS
_H
OL
D
GSM
_
PA
_P
WR
_C
T
L
_
R
E
F
AM
U
X
_
O
U
T
SL
EE
P_C
L
K
SIM
CO
NNE
C
T
O
R
U
S
IM
_
P
_
D
A
T
A
/
C
L
K
/
R
S
T
_
N
VR
E
G
_
U
S
IM
_3.
0V
Fr
o
m
P
M
IC
VG
A
CA
ME
RA
3M
CA
ME
R
A
VGA
_
C
A
M
_
PWD
N
/
R
E
SET
_
N
CA
M
_
P
C
L
K
CA
M
_
D
A
T
A
[0
:7
]
CA
M
_
H
S
Y
N
C/
V
SYN
C
C
A
M
_
M
C
L
K
LC
D
L
C
D
_
D
A
T
A
[0
:1
5
]
L
C
D
_
IF
_
M
O
D
E
E
B
I2
_
O
E
_
N
/W
E
_
N
E
B
I2
_
A
D
D
R
(1
1
)
L
C
D
_
V
S
Y
N
C
O
U
T
LC
D
_
CS
_
N
LC
D
_
R
ESET
_
N
CH
A
R
G
E
PUMP
(RN5T662
)
ML
E
D
1:
6
WL
ED
_PW
R
VR
EG_M
SM
P_2.
7
V
+
VPW
R
LC
D
_
B
L
_
E
N
S
U
B
P
M
IC
_
I2
C
_
S
C
L
/S
D
A
Fr
o
m
M
S
M
Fr
o
m
P
M
IC
SPE
AKE
R
AM
P
(EUS
Y033570
1
)
LI
N
E
_
O
P
/N
FM
_
A
UDIO
_
R
/L
Fr
o
m
FM
Rad
io
Mo
d
u
le
EM
I F
ilt
er
(NUF2
114MN
)
HP
L
_
R
HP
L
_
L
To
. MMI
CON.
SPK
+
/-
R
C
V
+
/-
Ana
log S
/W
(NL
A
S
5
223B
M
N
R2G
)
SP
K
_
R
C
V
_
S
E
L
Fr
o
m
M
S
M
+VP
W
R
S
P
K
_
R
C
V
+
/-
To
. S
p
eak
e
r
EA
R
_
S
E
N
S
E_
N
EA
R
_
M
IC
_
P
Fr
o
m
M
S
M
Fr
o
m
M
M
I C
o
n
.
MI
C1
P
/N
Fr
o
m
M
a
in
MI
C
o
f K
e
y
FP
C
B
LC
D
IS
P
_
S
E
N
S
_
I2
C
_
S
C
L
I2C
_
SD
A
/SC
L
ISP_
SEN
S
_M
C
L
K
CL
K
P
/N
DA
TA
P
/N
Fr
o
m
M
S
M
An
a
lo
g
S/
W
FS
U
S
B
3
0U
M
X
US
B
_
D+/
-
US
B
+
RI
NT
/-
_
R
A
D
C
Fr
o
m
MMI
C
O
N
.
VR
E
G
_C
AM
_2.
8
V
VR
E
G
_C
AM
_1.
8
V
VR
E
G
_
C
AM
_1.
8
V
VR
E
G
_
C
AM
_2.
8
V
VR
E
G
_3M
_A
F
_2.8
V
EA
R
_
SE
NSE
_
N
+V
PW
R
Fr
o
m
P
M
IC
LI
N
M
O
T
O
R
D
R
IV
E
R
LI
N
_
P
W
M
_
M
A
G
LI
N
_
IN
V
E
R
T
E
R
LI
N
_
P
W
M
_
F
R
E
Q
MO
T
O
R
+
MO
TO
R
-
LI
N
_
M
O
T
O
R
_
E
N
VR
EG
_
M
O
T
_
3
.0
V
FM
r
a
d
io
(S
I4
70
2)
To
. M
O
TOR
o
f
LC
D
F
P
C
B
FM
_
I2
C
_
S
C
L
FM
_
I2
C
_SD
A
FM_
A
U
D
IO_
R
/L
To
. MS
M
FM
_
B
US
E
N
FM_
C
ON
TRO
L
FM_
A
N
T
Fr
o
m
M
M
I C
o
n
.
VRE
G
_
M
S
M
P_
2
.7
V
Fr
o
m
PM
IC
SL
EE
P_C
L
K
Fr
o
m
P
M
IC
TOUCH
M
O
DUL
E
TO
U
CH_
I2
C_
SD
A
/
SC
L
TO
UCH
_
P
E
N
IR
Q
_
N
VR
EG_L
D
O
_ T
O
U
C
H
_
2.8V
Fr
o
m
L
D
O
32.
7
6
8
K
H
z
X-
TA
L
ISP_
SEN
S
_I2
C
_
S
D
A
SP
K
_
A
M
P_
E
N
Fr
o
m
MS
M
+V
PW
R
Fr
o
m
PM
IC
To
. F
M
r
a
d
io
RM
T_
IN
T/
A
D
C
To
. M
S
M
RMT
_
IN
T
/A
D
C
Fr
o
m
M
M
I C
o
n
.
Mi
c
ro
S
D
CO
NNE
C
T
O
R
VR
EG
_
M
MC
_3.
0V
Fr
o
m
P
M
IC
DIA
L
K
E
Y
CO
NNE
C
T
O
R
DI
A
L
_
D
E
T
E
C
T1
/2
/P
D
N
M
IC
R
O
S
D
_
D
A
T
A
[0
:3
]
M
IC
R
O
S
D
_
C
M
D
M
IC
R
O
S
D
_
C
L
K
M
IC
R
O
S
D
_
D
E
T
E
C
T
48M
H
Z
X-
T
A
L
VR
E
G
_
M
SM
P
_
2
.7
V
Fr
o
m
P
M
IC
+V
PW
R
EM
I F
ilt
e
r
(I
CV
E
1
0184E
150R500
F
R
)
EB
I2_D
A
T
A
[0:
15
]
ST
B
_
N
Fr
o
m
MTE
K
I
S
P
Fr
o
m
M
S
M
XSH
U
T
D
OW
N
3M
_C
A
M
_
R
ES
ET
_N
VR
EG
_
ISP
_2.
8
V
ST
B
_
N
To
. C
H
A
R
GE
P
U
MP
LE
D
1
/2
To
. D
ia
l K
e
y
L
E
D
Fr
o
m
MM
I CON.
RM
T
_
P
W
R_
O
N
_
N
TA
OV
P
CI
RCU
IT
(N
US306
5
M
U
T
A
G
)
Ex
te
rn
a
l
C
h
a
rg
e
r
CH
A
R
GHI
N
G C
IRC
UIT
(NU
S
3116M
TR2G)
Fr
o
m
M
M
I C
O
N.
+5
V
_
P
W
R
US
B
_
V
B
US
Fr
o
m
M
M
I C
O
N.
+V
PW
R
VB
A
T
T
Fr
o
m
B
A
TT
ER
Y C
O
N.