DOWNLOAD LG 72LEX9-CA (CHASSIS:LC03N) Service Manual ↓ Size: 15.41 MB | Pages: 43 in PDF or view online for FREE

Model
72LEX9-CA (CHASSIS:LC03N)
Pages
43
Size
15.41 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
72lex9-ca-chassis-lc03n.pdf
Date
PREV: LG 55LEX8-ZA (CHASSIS:LD03S) Service Manual

LG 72LEX9-CA (CHASSIS:LC03N) Service Manual ▷ View online

- 17 -
方框图
版权归LG电子所有
仅限培训和售后服务使用
仅限LG电子内部使用
High Ch
a
s
s
is
B
C
M
3556
(IC1
0
0
)
H
ig
h
 C
hassis
H
ig
h
 C
hassis
B
C
M
3556
B
C
M
3556
(IC1
0
(IC1
0
0
0
)
)
EE
PRO
M
( I
C
6401
)
EE
PRO
M
( I
C
6401
)
(J
K6403
)
(J
K6402)
DS
UB
_R,G
 B, R
GB
_H
/V SYN
C
, DS
UB
_DET, IS
P
_RXD/TXD
RGB_DDC_SC
L/
S
DA
PC _R/
L _I
N
SCL2 / SDL2
_
3
.3
V
A
P
2191SG-13
(IC
2202/2203
)
A
P
2191SG
A
P
2191SG
-
-
13
13
(IC
(IC
2202/2203
2202/2203
)
)
RGB In
PC 
A
udi
o
USB
(Sid
e)
(J
K
2201
/2
)
S
P
D
IF
  J
K
6401
SPDIF_
O
UT
(J
K6302
)
D0+/-,D
1+/-,D2+/
-,CK+/-_HDMI1
DDC_SCL
1
/SD
A
1
HDMI1 
In
(J
K6300
)
DDC_SCL
2
/SD
A
2
HDMI2 
In
(J
K6301
)
DDC_SCL
3
/SD
A
3
HDMI3 
In
D0+/-,D
1+/-,D2+/
-,CK+/-_HDMI2
D0+/-,D
1+/-,D2+/
-,CK+/-_HDMI3
IC
2201
U
S
B
2512
A
IC
2201
IC
2201
U
S
B
2512
A
U
S
B
2512
A
IC6300
HDMI 
SWITCH
HDMI_RX
0+/-,
RX1+/-,R
X
2+/-,CLK+/-
DDC_SCL
/SD
A
P1700 
Motion Remote
M_Re
mote
_RX
 /
 TX
M_RF Modul
e
_ 
re
s
et
DC/DD
C
V
B
S
 Gen
d
e
rJK
6603
C
o
m
p
 Ge
n
d
e
rJK
6600
R
E
A
R
_
A
V_
C
B
VS
, 
A
V
_C
V
B
S_
DE
T
 ; R
E
A
R
_
A
V_
L
/R_
IN
SIDE
_CO
M
P
_
Y
/Pb/
P
r,
 SIDE
_COMP_DE
T
SIDE
_CO
M
P
_
INCM
R
S
232 
(J
K6201)
R
S
232 I
C
MA
X3232
IC
6200
R
S
232 I
C
R
S
232 I
C
MA
X3232
MA
X3232
IC
6200
IC
6200
Wi
re
less  
 (
J
K6700
)
Sw
it
c
h
IC
6700
Sw
it
c
h
Sw
it
c
h
IC
6700
IC
6700
Wi
re
less_ T
X
/RX
BCM_TXD
1/R
X
D1
BCM_TX/R
X
NEC_
 Mi
co
m
U
P
D
78F0513
IC
8101
NEC_
 Mi
co
m
NEC_
 Mi
co
m
U
P
D
78F0513
U
P
D
78F0513
IC
8101
IC
8101
NEC_
TXD/R
X
D
NEC_
IS
P
_T
X
/R
X
Wi
re
less _
D
L_
TX
/R
X
Wi
re
less
 _S
C
L
/S
D
A
 
(S
C
L
2/S
D
A
2_3.
3V
)
EPH
Y
_TDP
/TDN
/RDP/RDN
ETHERN
ET
(J
K6701
)
LA
N
T
D
FD-
C
05
5D L
CH
B 
MA
IN
  
TU15
01
T
D
FD-
C
05
5D L
CH
B 
MA
IN
  
TU15
01
TDF
D
-C0
7
5
D
CH
B 
SUB  
TU150
2
T
D
FD-
C
07
5D
CH
B 
SUB  
TU150
2
CHB Tun
er
(ref
er to
 p
ag
e
 3)
SIDE
_USB_DM/DP
USB_DM
1/DP
1
USB_DM
2/DP
2
SC
A
R
T
_D
E
T; S
CR_R/
G/B
C
o
m
p
 Ge
n
d
e
rJK
6602
C
V
B
S
 Gen
d
e
rJK
6601
S
IDE_
A
V_C
B
VS,
 A
V
_CV
B
S_
DET
 ;
 S
IDE_
A
V_L/R
_
IN
EPHY
_
A
C
TI
VITY / 
LINK
- 18 -
版权归LG电子所有
仅限培训和售后服务使用
仅限LG电子内部使用
H
ig
h
 C
hassis
B
C
M
3556
(IC
100)
H
ig
h
 C
hassis
H
ig
h
 C
hassis
B
C
M
3556
B
C
M
3556
(IC1
0
(IC1
0
0
0
)
)
NVR
A
M
(1
M
, I
C
102
)
NVR
A
M
NVR
A
M
(
(
1M
1M
, IC
1
0
, IC
1
0
2
2
)
)
NA
N
D
 F
L
A
S
H
(4Gb
it, IC101)
NA
N
D
 F
L
A
S
H
NA
N
D
 F
L
A
S
H
(
(
4
4
G
G
bit
bit
, IC101)
, IC101)
NA
N
D
_
DA
T
A
[0
-7
]
DDR3
(1G
+
1G 
IC
401/403
)
DDR
DDR
3
3
(1
G+1
G
(1
G+1
G 
IC
IC
401/403
401/403
)
)
DDR3
(1G
+
1G I
C400/402
)
DDR3
(1G
+
1G I
C400/402
)
DDR_D
Q
[0
:1
5],
DDR_
A
[0:
1
3
] …
NEC_
EE
PR
OM_
S
CL/
S
D
A
LED
_
R/Buzz
K
E
Y1/2
 ,
IR
EE
PRO
M
(16
K
, I
C
8100
)
EE
PRO
M
(16
K
, I
C
8100
)
NEC_Mi
co
m
IC
8101
NEC_Mi
co
m
NEC_Mi
co
m
IC
8101
IC
8101
IR &
L
G LOGO
P6200
IR &
IR &
L
G LOGO
L
G LOGO
P6200
P6200
NEC_
SCL/
SD
A
Po
w
e
r B/D
P8001
Po
w
e
r B/D
Po
w
e
r B/D
P8001
P8001
INV
_CTL
,RL
_
O
N
Debu
gg
er 
P8100
Debu
gg
er 
Debu
gg
er 
P8100
P8100
NEC_
IS
P
_T
X
/R
X….
SO
C_
 Rese
t
DDR_D
Q
[0:
1
5],
DDR_
A
[0:
1
3
] …
N
A
ND _ 
WEb
/A
L
E/CL
E
…
LP
F
S
C
L1
/S
D
A
1_3.3
V
Spea
ke
r
A
udi
o A
M
P
N
T
P7100
IC
8801
A
udi
o A
M
P
A
udi
o A
M
P
N
T
P7100
N
T
P7100
IC
8801
IC
8801
A
U
D
_LRCH/LR
CK/SCK, A
M
P
_
Mute
SPK_L
+/-
SPK_R
+/-
PWM
S
D
A
/SC
L3_3
.3V
L
V
D
S
_T
X_0_
D
A
T
A
[0
-4
]
L
V
D
S
_T
X_0_
C
L
K
L
V
D
S
_T
X_1_
D
A
T
A
[0
-4
]
L
V
D
S
_T
X_1_
C
L
K
RPX
A
[+/-
0-
4],R
PX
A
C
K[+/-]
RPXB[+/-0-
4],R
PXBCK[+/-]
51P
in
 LV
D
S
P6800
V
_S
Y
NC, 3D
_D
IMMING_
1
/2
S
D
A
3/S
C
L
3_3.3V
Lo
c
a
l Di
mm
ing
L
G
5111
IC
9701
Lo
c
a
l Di
mm
ing
Lo
c
a
l Di
mm
ing
L
G
5111
L
G
5111
IC
9701
IC
9701
FRC_RE
S
E
T
L
E
D_
B
/LG LOG
O
LED Dr
iv
in
g B/
D
P7900
LED Dr
iv
in
g B/
D
LED Dr
iv
in
g B/
D
P7900
P7900
LED Dr
iv
in
g B/
D
P7901
LED Dr
iv
in
g B/
D
LED Dr
iv
in
g B/
D
P7901
P7901
M[2/
3]_
S
CLK/M
O
SI;
 R_
V
S
M[0/
1]_
S
CK/M
O
SI;L_
VS;
S
_
SCLK/MOSI
/C
S_N
W
oofer
N
T
P7100
IC
6100
W
oofer
W
oofer
N
T
P7100
N
T
P7100
IC
6100
IC
6100
S
C
L2
/S
D
A
2_3.3
V
A
U
D
_LRCH/LR
CK/SCK, A
M
P
_
Mute
S
P
K_Woof
er
 +
/-
W
oofer
P6100
W
oofer
W
oofer
P6100
P6100
3D T-Com
3D T-Com
480
H
Z
(ref
er to
 p
ag
e
 4)
A
UD_
M
A
ST
ER_C
L
K
A
UD_
M
A
ST
ER_C
L
K
EE
PRO
M
( I
C
9703
)
EE
PRO
M
( I
C
9703
)
M[0/
1]_
S
CK/M
O
SI;L_
VS;
S
_
SCLK/MOSI
/C
S_N
EE
PRO
M
_WP/
A
I
M_SCL/SD
A
S
D
A
3/S
C
L
3_3.3V
3D IR e
m
itter
3D IR e
m
itter
3D IR e
m
itter
3D
_S
YNC
_
OUT
E
_
TCK/TD
O
/TMS/TD
I
- 19  -
版权归LG电子所有
仅限培训和售后服务使用
仅限LG电子内部使用
H
ig
h
 C
hassis
B
C
M
3556
(IC
100)
High Ch
a
s
s
is
High Ch
a
s
s
is
BCM3
5
5
6
B
C
M
3556
(IC1
0
(IC1
0
0
0
)
)
T
D
FD-
C
05
5D
_
CH
B 
MA
IN
TU1
501
T
D
FD-
C
05
5D
_
CH
B 
MA
IN
TU1
501
R
F
_SWI
T
C
H
_
CT
L ,
 L
N
A
2_C
T
L/B
OOSTER
_
CT
L,
 Tu
ne
r Rese
t
TU_CVBS/
S
IF 
(A
T
V)
CI
 Sl
ot
P1
90
1
CI
 Sl
ot
CI
 Sl
ot
P1
9
P1
9
01
01
T
U
_S
C
L
/S
D
A 
,  D
em
o
d_S
C
L
 /
S
D
A
P
C
M
_
A
[0-14
]
C
I_
D
AT
A[
0
-7
]
CE,
O
E,WE)
MA
IN_
F
E_T
S
_
D
A
T
A
[0..7
]
M
A
IN
_FE
_
TS
_DA
T
A
_
SCL/
SYNC/V
A
L_
E
R
R
T
D
FD-
C
07
5D
_
CH
B 
SUB
TU1
502
T
D
FD-
C
07
5D
_
CH
B 
SUB
TU1
502
RF_
S
WITCH_C
T
L
_
CHB ,
 BST
_
CTL(+5V),
 Tun
e
r Re
s
e
t_
CHB
T
U
_S
C
L
/S
D
A 
,  D
em
o
d_S
C
L
 /
S
D
A
IC15
00
IC15
00
IC15
00
TU_C
VBS
_CHB
T
W
_
9910_
Rese
t
BUF
F
E
R
IC14
00
BUF
F
E
R
BUF
F
E
R
IC14
00
IC14
00
CI_
O
U
T
CLK,CI
_
O
UTD
A
T
A
[0
-7
],
CI_
O
U
T
ST
A
R
T
,CI_
O
U
T
V
A
L
ID
IC15
01
IC15
01
IC15
01
T
W
9
910_
D
A
T
A
[0
-7
]
T
W
9
910_
C
L
K
F
E_
T
S_
SE
R
IA
L
FE
_T
S
_D
A
T
A
_
CLK/S
YNC/V
A
L
_
ERR
CHB_Re
s
et
FE
_T
S
_
D
A
T
A
_
CHB
FE
_T
S
_CLK /S
Y
NC/V
A
L
_
ERR
 _
CHB
CI
_CD
1,CI
_CD
2
, /CI
_IR
Q
A
…
- 20  -
版权归LG电子所有
仅限培训和售后服务使用
仅限LG电子内部使用
L
G
5801
A
(IC
401
)
L
G
5801
A
L
G
5801
A
(IC
401
)
(IC
401
)
P800
  51
Pi
n
2: LVRX
1
_
A
M/
A
P….
E
M/
EP; LV
RX1
_
CLKM/P
L
V
RX
2
_
A
M
/A
P….
E
M/
EP; LV
RX2
_C
L
KM/P
I2
C
 S
D
A
/SC
L
V
SC
A
N
_BLK
1;S
C
A
N
_BLK2
P802
 mas
te
r le
ft
 80P
in
IC
2301
IC
2301
IC
2301
V1
…
..V18
; P_VC
O
M
L
G1120
(IC
102)
L
G1120
L
G
1120
(IC
102)
(IC
102)
I2
C
 S
D
A
/SC
L
V
DDR3
(IC
205/204
)
DDR
DDR
3
3
(
(
IC
IC
205/204
205/204
)
)
DDR3
(IC
200/201
)
DDR3
(IC
200/201
)
DDR_
A
[0:
1
2]
,DDR_D[0:
1
5
] …
DDR_
A
[0:
1
2],D
DR_D[1
6:
3
1]
P801
  mas
te
r r
ig
h
t 80
Pi
n
L
G
5801
A
(IC
501
)
L
G
5801
A
L
G
5801
A
(IC
501
)
(IC
501
)
P804
 sla
v
e le
ft
 80P
in
P803
  s
la
v
e r
ight
 80P
in
2D-
3D
(IC
1000
)
2D
2D
-
-
3D
3D
(
(
IC
IC
1000
1000
)
)
IC
1002
IC
1002
IC
1002
IC
1001
IC
1001
IC
1001
DDR_A
[1
2-0
],DDR_D[1
5-0
] …
DDR_A
[1
2-0]
,DDR_D[13
-1
6] …
THC6
3*
8
(IC
2101
-IC2108
)
THC6
3*
8
THC6
3*
8
(IC
2101
(IC
2101
-
-
IC
2108
)
IC
2108
)
CH1
_T
A
/B
/C/D/
E[1-
8]+/-;
CLK[1-8]+/-
CH2
_T
A
/B
/C/D/
E[1-
8]+/-;
CLK[1-8]+/-
T A
/B/C
/D/
E[1-
5]
+/-
R
L
V [0
-5
]+
/-
_
S
 ;C
L
K
+/-
_
S
RRV [
0-5]+/-_
S
; 
CLK+/-_S
LLV
 [0-
5
]+/-_
S
;CLK+/-_S
LRV [
0-
5]+/_
S-;CLK+/-_S
RLV [
0-
5]+/-_M ;CLK+/-_M
RRV [
0-5]+/-_M;
 CLK+/-_M
LLV
 [0-
5]+/-_M;CLK+/-_M
LRV [
0-
5]+/_M-;CLK+/-_M
LVT
X
[1-
5
,CLK]_ 
A
/B
/C/D/
E+/-
I2
C
 S
D
A
/SC
L
V
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