Read LG 42LK410 (CHASSIS:LP91U) Service Manual online
- 17 -
BLOCK DIAGRAM
EEP
ROM
R1EX
24
00
2
RGB-PC
(JK20
2)
Tuner
(TU600)
Compon
ent
(JK10
1)
A
V
_L
IN
/R
IN
:
500mVrms
SPK_L
SPK_R
AV
_
V
IN
:
1Vpp
N
T
P7100
COM
P_Y/Pb/Pr
HD
M
I_DA
T
A
0
TU_M
A
IN
AV
_
V
IN
C
O
MP_
L
IN
/R
IN
L_CH
R_CH
A
V
_L
IN
/R
IN
PC-SOU
N
D
(JK20
3)
I2S_
MC
L
K
I2S_
S
D
O
I2S_W
S
I2S_
S
C
K
TMDS
EE
PRO
M
(A
T24
C256
C
)
Se
rial
Flas
h
(MX2
5L
6
4
)
EE
PRO
M
HDCP
(2
4WC0
8)
EEP_SCL/
SDA
EEP_SCL/
SDA
TXCE
2
±±
TXCE
3
±±
TXCL
KE
±±
TXCE
1
±±
TXCE
0
±±
TXCO1
±±
TXCO3
±±
TXCO2
±±
TXCO0
±±
TXCL
KO
±±
M_SCL/SD
A
Main scaler
Matrix
(L
G
E
4767A
)
(I
C
800
)
IC30
2
T
U
600
IC
802
IC
803
IC
801
IC
501
M
_SCL
/S
D
A
SIDE
REAR
HD
M
I3
(JK30
3)
US
B
(JK20
4)
R
S
-232
C
(JK20
0)
HD
M
I1
(JK30
1)
HD
M
I2
(JK30
2)
EEP
ROM
R1EX
24
00
2
IC30
1
EEP
ROM
R1EX
24
00
2
IC30
0
DDC
_S
C
L
/SD
A
1
DDC
_S
C
L
/SD
A
2
DDC
_S
C
L
/SD
A
3
Contr
o
ll
e
r
M
A
X3232
C
D
R
IC20
0
RX
D
/TXD
EEP
ROM
R1EX
24
00
2
IC20
1
DS
UB
_SCL/S
D
A
S
P
I_
C
Z
/D
O
SPI
_
CLK/DI
HD
M
I_DA
T
A
1
HD
M
I_DA
T
A
2
U
S
B DN/DP
P
C
_
R
/G/B
PC_VS
/H
S
TXD/
R
X
D
PC_A
UD_L/
R
TXCO4
±±
TXCE
4
±±
P402
P405
HD LV
DS c
onne
ctor
DDR2 SDR
A
M
(512
M
B
y
te
)
IC
900
DD
R2_C
K
E
DD
R2_WEZ
DD
R2_DQS0 ±
±
DD
R2_M
CLK
DD
R2_BA
0/
1
DD
R2_DQS1
±±
DD
R2_ODT
DD
R2_DQM
0/
1
51
P FHD L
VDS
co
nne
ctor
P401
P404
30
P FHD L
VDS
co
nne
ctor
A
udi
o
out_L/
R
COM
PON
ENT_L/R
:
500mVrms
CO
M
P
O
N
ENT_Y
/Pb/
P
r
:
1/0.7Vpp
A
udi
o
out_L/
R
:
5
00m
Vrms
AV
(JK10
3)
A
udi
o
out
(JK10
2)
OP A
m
p
A
S324M
T
R
IC
50
2
M
N
T_L/R_A
M
P
A
udi
o
A
m
p
TPA
3124
IC21
00
Hotel opt
ion
f
o
r China
M
A
IN
_SIF
LED d
ro
v
e
r
(M
A
X
16814
)
IC
100
P7701
5P conn
ec
tor
PW
M
_
DIM
WLED
_ENA
BLE
(I
NV_
CTL)
12P
/15P
co
nn
e
c
tor
P400
(15P
)
P403
(12P
)
SUB_S
CL/SD
A
, L
E
D_R
IR
, K
E
Y
1
/2
Only
for 22î
TN module
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