Read LG 42SL90QD-AA (CHASSIS:LA92M) Service Manual online
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BLOCK DIAGRAM
TS_Serial In
DDR2 256M
Qimo
nda/Hynix
DDR2 256M
Qimo
nda/Hynix
DTV I
F
+/
-
Tune
r CVBS,
SI
F
TS_cl
k, Sync, V
a
l,
E
rr
T
S
_P
a
ra
llel In[0-7]l
CVBS
LCD Module
(120Hz)
MST7323
FRC IC
LVDS
Buffer
CE6355
Intel Demod.
Serial Flash
SCL, SDA
XC5000
Tuner
Digital AMP
NTP3100L
I2S
Saturn6Saturn6
Component 1
Y Pb
Pr
CVBS
Y Pb
Pr
RGB/H/
V
Component 2
A
V 1
AV 2
(2M
bit)
Phone (f
or
RGB)
RGB/H/
V
EEPROM
RGB
Audio L/R
TLV320AIC1106
PCM CODEC
B/T HP
L/R
OUT
B/T
D
M/DP
PCM
PCMSYNC
MCLK
Jack Board
D
igital Audio
(O
ptic)
Audio
L/R
SPDIF
TEA6420
Audio Switch
LBMS-2C66B4
B/T Module
B/T
DM/D
P
CM321
2
Senso
r
SCL, SDA_3.3V
DDR2
(1Gbit)
NAND Flash
(512Mbit)
RS-232C (Ct
rl
./SVC)
DDR_Data[0:15],
DQS, DM Ö
MAX3232
RS232 IC
Data
[0 Ö
7]
Addr[0Ö1],
CS
Ö
RX/T
X
R
X
/T
X
USB D
P/
D
M
S
e
ria
l
Fl
as
h
(32Mbit)
SPI
DDR2
Qimo
nda /
Hynix
Addr.
[ ],
ctrl.
da
ta
USB2.0
MIC2019
O.C. Protector
+5V
+5V
HDMI 1
5V_HDMI
1
, HPD1,
DDC
SCL/
SDA, CLK,
DATA
CLK, DATA
a
DDR2 (512Mbit)
Qimo
nda /
Hynix
DDR_Data[0:15],
DQS, DM Ö
Addr.
[ ],
ctrl.
da
ta
SCL,
SDA
_
3
.3V
IO Expander
EEPROM
(512K)
SCL, SDA_3.3V
Auto
Link
TDA9996
4x1
HDMI Switch
HDMI 2
HDMI 3
HDMI 4
5V_HDMI
2
, HPD2,
DDC
SCL/
SDA, CLK,
DATA
5V_HDMI
3
, HPD3,
DDC
SCL/
SDA, CLK,
DATA
5V_HDMI
4
, HPD4,
DDC
SCL/
SDA, CLK,
DATA
SCL, SDA
Main Board
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