Read LG 42SL90QD-CA (CHASSIS:LC91L) Service Manual online
- 18 -
A
udi
o A
M
P
(NTP3100, IC701)
6
:
I
2
S
, M
C
L
K
,
…
2
:
SCL,
S
DA
_
S
U
B
/AM
P
HDMI 1
EEPROMEEPROM
(2K, IC600)(2K, IC600)
1
:
EDI
D
_W
P
12
:
DA
TA
+/
-
X
3,
C
LK+
/-
,
V
_
H
DM
I1,
DDC_
S
CL1/S
D
A1
2
:
DDC_
S
CL1/S
D
A1
Sw
itch
Sw
itch
(BU16027KV
, IC603)
(BU16027KV
, IC603)
Sub
(IR)
1
:
IR
2
:
SCL,
S
DA
_
S
U
B
/AM
P
HDMI 4
(SIDE)
EEPROM
(2K, IC601)
12
:
DATA+
/-
X
3
,
C
LK+/-
,
H
PD3,
5
V_
HD
M
I3
DDC_
S
CL
3
/S
D
A
3
2
:
DDC_
S
CL3/S
D
A3
Sub
(L
ED
, C
o
n
tro
l)
nt
1
:
LED_
ON
2
:
SCL,
S
DA
_
S
U
B
/AM
P
2
:
KEY1/2
HDMI 2
HDMI 3
EEPROM
(2K, IC602)
EEPROM
(2K, IC604)
Saturn6Saturn6
DDR2DDR2
45
:
DDR2_
D
[
0
:1
5
]
,…
DDR2DDR2
(1G, IC300)(1G, IC300)
45
:
DDR2_
D
[
0
:1
5
]
,…
Comp 1
Comp 2
AV
1
G
2
:
CVBS
,
DET
4
:
Y,
P
b,
P
r,
D
ET
4
:
Y,
P
b,
P
r,
D
ET
8
:
R
,
R,
G,
B
,
B,
H/
V
S
VS
Y
N
C,
DET
,
DET,
I
S
P
R
X
D/T
X
D
LGE33
6
9
A
LGE33
6
9
A
(IC100
)
(IC100
)
NA
ND FLA
SH
NA
ND FLA
SH
(512M
, IC102)
(512M
, IC102)
1
4
:
P
C
M_
A[
0:
7]
,…
(512M
, IC301)
(512M
, IC301)
R
G
B
Com
p
1
AV
1
EEPROM
(2K, IC400)
1
:
EDI
D
_W
P
8
R
,
G
,B
,
H
/V
S
Y
N
C
,
D
E
T
,I
S
P
_
RX
D/T
X
D
2
:
IS
P_
RX
D/T
X
D
2 2
:
L/L/
R
2
:
L/R
Ser
ia
l FLA
SH
for
boot
(32M
, IC103)
5
:
SPI,
F
la
s
h
_W
P
_
1
EEPROMEEPROM
2 2
:
EEPRO
M
_
S
C
L
,
S
DA
p
Comp 2
Digita
l A
udio
(Optic
)
Phone
(for
RGB)
2
:
L/R
2
:
L/R
1
:
SPDIF
_
O
U
T
2
:
S
ID
E
USB
D
M
/DP
(512K, IC105)
HDCP EEPROM
(8K, IC107)
2 2
:
EEPRO
M
_
S
C
L
,
S
DA
USB 2.0(SIDE)
RS-232C :
Ctrl& SVC
OCPOCP
(M
P6211,IC40
2)
(M
P6211,IC40
2)
M
A
X3232CDR
M
A
X3232CDR
(IC403)(IC403)
2
:
DBG_
RX/T
X
2
SI
DE
_
USB
_
DM
/D
P
2
:
DBG_
RX/T
X
1
:
5V_
U
S
B
2
:
USB_
C
T
L
,
USB_O
C
D
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