Read LG 37LH4000 / 37LH4010 / 37LH4020 (CHASSIS:LD91G) Service Manual online
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BLOCK DIAGRAM
RGB
COMP
ON
ENT
F-SC
A
RT
AV
3
BU
F_
TS_
C
L
K/ER
R
/SY
N/
D
A
TA[0]
AV
_CVB
S
_
IN
DDR2 SDRAM
(1
G
b
)
IC
300
NAND Flas
h
HY
NI
X
IC1
0
2
USB
Digital am
p
(N
T
P
3100L
)
IC
701
COMP
_
Y
/P
b/
Pr
S
C
1_
CV
BS_I
N
S
C
2_
CV
BS_I
N
I2
S
DSUB
_ R
/G/
B
Tun er
(TDFW-G235D)
TU1200
LCD P
a
n
e
l
74LVC541A
Buffer
IC502
IC502
CI Slot
(P500)
74LCX244
Buffer
IC501
IC501
PCM_A
[0:
7
]
FE
_VMA
IN
PCM_A
[0:
7
]
SDDR_D[
0
:1
5
]
DDR2 SDRAM
(512
M
b
)
IC
301
TDDR_D[
0
:1
5
]
SDDR_A[
0
:1
2
]
Mstar
S6
LGE3368A
(IC100)
M
P
6205
D
H
U
S
B Pow
e
r
IC
402
U
S
B Pow
e
r
F
E
_
T
S_
D
A
TA
[0:7]
∆
C
I_
MDI[
0
:7
]
H-SC
A
R
T
SC1_R/G
/B
S
C
1/2_L
/R
_I
N
,
FE
_AM
_
AUDIO
,AV
_
L
/R_IN,
C
O
M
P
_L/
R
_
IN
, P
C
_L/
R_
IN
FE
_ V
O
UT
DTV/MNT
_V
OU
T
TDDR_A
[0:
1
2
]
T
P
A6110A
IC
700
Head
Phon
e
R
S
-232
C
M
A
X3232
C
D
R
IC
403
SP
DI
F
SPDIF_
O
U
T
DSUB
_H/
V
S
Y
N
C
HP_
L
/R
O
UT
L/R
C
I_T
S_
DA
T
A
[0
:7]
PCM_D[
0
:7]
∆
C
I_DATA[0
:7]
CI_
A
DDR[
0:
7
]
AUDI
O IN
DGB
_TX
/RX
HPD1
/2
/3
, HDMI
_CEC
TMDS[
0:
7
] ( D
a
ta
, Clock (+/-))
USB
_DM/DP
EE
PRO
M
M
2
4512
-W
M
W
6
(I
C
105
)
EE
PRO
M
CAT2
4
WC0
8W-
T
(HDCP)IC10
7
I2
C
LVDS (10 bit)
S
e
rial Flash
IC
103
F
o
r Boot
K
IA7427
(I
C
101
)
Vo
lt
age De
te
cto
r
Res
e
t
5V_
H
D
M
I_1/2
/3
HDMI 1
/2/
3
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