LG 47LH90 (CHASSIS:LA92C) Service Manual ▷ View online
Audio Signal Block
Audio Signal Block
MSD3368GV
TDVW-H103F
RF
DS_AGCI_CTL
* Each of analog signals shall be designed with “Common Mode (INCM) signal ”
* Each of HPD in/out signal of HDMI Port goes to GPIO Port of BCM3548
EDSAFE_IF_P
EDSAFE_IF_N
SIF0P
TU_IF_P
FE_SIF
TU_IF_N
TU_IF_AGC
AUL2
AUR2
SPDIF_OUT
I2S_CLK_OUT
I2S_DATA_OUT
I2S_LR_OUT
AV_L_IN
AV_R_IN
AUL1
AUR1
AUL3
AUR3
AUL0
AUR0
AUL4
AUL5
COMP1_R_IN
COMP1_L_IN
COMP2_R_IN
COMP2_L_IN
SIDEAV_R_IN
SIDEAV_L_IN
PC_R_IN
PC_L_IN
HDMI_SW_D1+/-
HDMI_SW_D0+/-
HDMI_SW_CK+/-
Digital AMP
NTP3100N
SPDIF_OUT
GPIO 22
AUDIO_M_CLK
+3.3V
1K
MSD3368GV
Flash & EJTAG Block
Flash & EJTAG Block
NAND FLASH
(HY27US08121B-TPCB)
PCM_A0
PCM_A1
PCM_A2
PCM_A3
PCM_A4
PCM_A5
PCM_A6
PCM_A7
F_RBZ
/PF_OE
/PF_CE0
/PF_CE1
PF_ALE
/PF_WE
RB
RE
CE
CLE
ALE
WE
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
8
PCM_A[0-7]
WP
PF_AD15
/F_RB
/PF_OE
/PF_CE0
/PF_CE1
PF_ALE
/PF_WE
PF WP
Reset Switch
Reset IC
(MAX809RTR)
S5/S6_Reset
HWRESET
+3.3V
+3.3V
MSD3368GV
MSD3368 I2C Block
MSD3368 I2C Block
TUNER
(TDVW-H103F)
LHSYNC2/RX1
LVSYNC2/TX1
UART2_TX
UART2_RX
GPIO 60
GPIO 62
22 ohm
22 ohm
+5V_Gen.
4.
7
k oh
m
4.
7
k oh
m
+5V_TU
4.
7
k oh
m
4.
7
k oh
m
0 ohm
0 ohm
+5V_Gen.
4.
7
k oh
m
4.
7
k oh
m
EEPROM
(AT24C512BW)
33 ohm
33 ohm
0 ohm
0 ohm
+3.3V
1.
2
k oh
m
1.
2
k oh
m
HDMI S/W
(TDA9996)
0 ohm
0 ohm
LGDT
3305
FE_TUNER_SCL/SDA
OPT
I2C Channel 6
0 ohm
OPT
SCL/SDA_TU
FE_DEMOD_SCL
/SDA
EEPROM_SCL
/SDA
OPT
DDCR_CK
DDCR_DA
0 ohm
0 ohm
EEPROM
(AT24C512BW)
100 ohm
100 ohm
0 ohm
I2C Channel 2
MEMC_SCL
/SDA
FRC
(MST7323S)
100 ohm
100 ohm
Local Dimming
(LG1130)
100 ohm
100 ohm
SCL0/SDA0
+5V_Gen.
1.
2
k oh
m
1.
2
k oh
m
I2C Channel 1
I2C Channel 4
SCL1/SDA1
TDA9996_SCL
/SDA
0 ohm
OPT
AUDIO AMP
(NTP3100L)
0 ohm
0 ohm
SCL
/SDA_SUB/AMP
MSD3368GV
MSD3368 GPIO Block
MSD3368 GPIO Block
DSUB_DET
ET_RXD1
5V_HDMI_1
GPIO 86
COMP2_DET
ET_TX_CLK
P800
( LVDS WAFER)
GPIO 88
AMP_RST
AUDIO AMP
( NTP3100L)
COMP1_DET
ET_RXD0
AV_CVBS_DET
ET_TXD0
SIDEAV_DET
ET_TXD1
RS232C
(MAX3232CDR)
UART_RX2
DBG_RX
UART_TX2
DBG_TX
HDMI S/W
(TDA9996)
5V_HDMI_2
GPIO 87
5V_HDMI_3
GPIO 84
5V_HDMI_4
SPDIF_IN
GPIO 98
AMP_MUTE
P2400
( POWER WAFER)
PWM2
PWM_DIM
FRC
(MST7323S)
LOCAL DIMMIN IC
(LG1130)
GPIO 43
DIMMING_RESET
+5V_Gen.
10K
+3.3V
10K
22 ohm
22 ohm
22 ohm
22 ohm
OPT
LVDS_SEL
GPIO 130
P3500
(LVDS WAFER)
100 ohm
0 ohm
0 ohm
OPT
A_DIM
PWM0
P3500
( LVDS WAFER)
P800
(LVDS WAFER)
0 ohm
OPT
0 ohm
OPC_EN
0 ohm
0 ohm
Except_OPC
NTP_MUTE
SAR3
SB_MUTE
D102
(Stand-by GPIO)
22 ohm
VSB IC
(LGDT3305)
VSB_RESET
ET_MDIO
USB_DM2
USB_DM
USB_DP2
USB_DP
JK1204
(USB JACK)
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