Read LG 47SL90QR-MA / 47SL90QR-TA (CHASSIS:LP91L) Service Manual online
Block Diagram
SL90 Series
RGB_PC
PC_Audio
TV
(RF)
(RF)
COMP1
HDMI1
HDMI2
HDMI3
HDMI2
HDMI3
RS232
TX
232C Driver
ST3232C
Tx/Rx : ±15Vpp
PC_R/G/B/HS/VS
PC_Audio_L/R :
700mVrms
MNT_VOUT
:
1Vpp
L_SPK_OUT
R_SPK_OUT
EEPROM
24C02
Comp1_L/R :
500mVrms
TUNER
AV1_VIN
:
1Vpp
AV1_LIN/RIN :
500mVrms
PWM
NTP3100L
MNT_OUT
MNT_LOUT/ROUT
:
500mVrms
MAIN SCALER
LGE376xA
TXD /RXD :
5V Digital
COMP1_Y/Pb/Pr
:
1/0.7Vpp
COMP2_Y/Pb/Pr
:
1/0.7Vpp
IR
HDMI_DATA_1
HDMI_DATA_2
DDC_SCL2/SDA2
TU_MAIN
S I F
COMP1_Y/Pb/Pr
:
1/0.7Vpp
AV1_VIN
PC_Audio_L/R
COMP1_LIN/RIN
L_CH
R_CH
FRC LVD
S
co
nn
e
c
tor
TU_MAIN
M_SCL/SDA
EEPROM
24C02
SIF
AV1_LIN/RIN
MNT_L/R OUT
AV1
MNT_OUT
Comp2_L/R :
500mVrms
COMP2_Y/Pb/Pr
:
1/0.7Vpp
COMP2_LIN/RIN
COMP2
PC_R/G/B/HS/VS
DDC_SCL1/SDA1
DSUB_SCL/SDA
MNT_VOUT
IIS_OUT
USB
USB_DP/DN
AUDIO
AMP
DDC_SCL3/SDA3
HDMI_DATA_3
TMDS
TMDS
TMDS
TMDS
EEPROM
24C02
FULL
HD LVD
S
co
nn
e
c
tor
FRC IC
LGE7329A
URSA_[C~D]
URSA_[A:B]
OPC_EN
DDR2 SDRAM
(2*256MB)
Serial Flash
PSU
RL_ON/I-DIMMING/DISP_EN
PANEL_STATUS
E-DIM
OPC_OUT
Bluetooth
Circuit
BLT_DP/DN
DDR2 SDRAM
(512MB)
EEPROM
(256K)
(256K)
Serial Flash
(8MByte)
(8MByte)
EEPROM
for HDCP
(8K)
for HDCP
(8K)
EEP_SCL/SDA
EEP_SCL/SDA
MEMC_RXE2±
MEMC_RXE4±
MEMC_RXC3±
MEMC_RXC±
MEMC_RXE1±
MEMC_RXE0±
MEMC_RXO2±
MEMC_RXO4±
MEMC_RXO3±
MEMC_RXOC±
MEMC_RXO1±
MEMC_RXO0±
EEPROM
24C02
M_SCL/SDA
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