Read LG 47SL90QR-LA / 47SL90QR-TA (CHASSIS:LP91L) Service Manual online
- 18 -
BLOCK DIAGRAM
HDMI1
HDMI2
TX
IR
HDMI
DA
T
A
1
EEPROM
24C02
DDC_SCL1/SD
A
1
TMDS
Serial
Flash
Edge LED Backlight
HDMI3
__
HDMI_DA
T
A
_
2
DDC_SCL2/SD
A
2
USB
DDC_SCL3/SD
A
3
HDMI_DA
T
A
_
3
TMDS
TMDS
EEPROM
24C02
(8MBy
te
)
EEPROM
for HDCP
(8K)
EEP
SCL/SDA
EEP_SCL/SDA
EEPROM
24C02
OPC
E
N
Bluetooth
Circuit
BLT_DP/DN
DDR2 SDRA
M
(512MB)
EEPROM
(256K)
EEP
_
SCL/SDA
RGB_PC
PC_A
udi
o
PC_R/G/B/HS/V
S
PC_A
udi
o
_L/R :
700mVr
m
s
EEPROM
24C02
MAIN SCAL
ER
LGE376xA
PC_A
udi
o
_L/R
PC_R/G/B/HS/V
S
DSUB_SCL/SD
A
LVDS connector
URSA
_[
A
:B]
_
DDR2 SDRA
M
(2*256MB)
E-DIM
MEMC_RXE1
±±
MEMC_RXE0
±±
COMP1
Comp1_L/R :
500m
Vr
m
s
MNT_OUT
COMP1_Y/Pb/
Pr
:
1/0.7V
pp
COMP2_Y/Pb/
Pr
:
1/0.7V
pp
COMP1_Y/Pb/
Pr
:
1/0.7V
pp
COMP1_LIN/RIN
Comp2_L/R :
500m
Vr
m
s
COMP2_Y/Pb/
Pr
:
1/0.7V
pp
COMP2
L
IN/RIN
COMP2
FULL HD
FRC IC
L
G
E7329A
MEMC_RXE2
±±
MEMC_RXE4
±±
MEMC_RXC3
±±
MEMC_RXC
±±
MEMC_RXO2±
±
CO
MEMC_RXOC±
±
MEMC_RXO1±
±
MEMC_RXO0±
±
MNT_VOUT
:
1Vpp
A
V
2
_
L
IN
/RIN :
500m
Vr
m
s
R
SPK
OUT
A
V
1_VI
N
:
1Vpp
A
V1
_
L
IN
/RIN :
500m
Vr
m
s
MNT
L
OUT/ROUT
500
V
A
V
1_VI
N
FRC LVDS connector
A
V
1
_
L
IN
/RIN
AV
1
MNT_OUT
COMP2_
MNT_VOUT
A
V
2_VI
N
A
V
2
_
L
IN
/RIN
URSA
_[C~D]
Serial Flash
MEMC_RXO4±
±
MEM
C_RXO3±
±
M_SCL/SDA
TV
(RF)
232C
D
i
Tx/Rx
:
±15Vpp
L_SPK_O
UT
R_SPK
_
TUNER
NTP3100L
_
:
m
rms
TU_MA
IN
S I
F
L_CH
R_CH
TU_MA
IN
M_SCL/SDA
SIF
MNT_L/R OUT
IIS_OUT
A
UDIO
AM
P
PA
NEL_
STA
TUS
OPC
OUT
RS232
(Not fixed)
Dr
iv
e
r
ST3232C
Tx/Rx
:
TXD /RXD
:
5V Digital
RL_ON/I-DIMMING/DIS
P
_
EN
_
PSU
PWM
USB
DP/DN
_
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