LG 39LN57XX / 39LN5758 / 39LN575S / 39LN575V / 39LN5778 / 39LN577S / 39LN577V / 39LN578V (CHASSIS:LD33B) Service Manual ▷ View online
33Ω
+3.3V_Normal
2.7KΩ
+3.5V_ST
3.3KΩ
IC3000
Renesas MICOM
TUNER(S)
2.7KΩ
+3.3V_Normal
I2C_SDA4
I2C_SCL4
I2C_SDA3
I2C_SCL3
LNB
33Ω
22Ω
33Ω
+3.3V_Normal
2.7KΩ
IC7700
PMIC
I2C_SDA2
I2C_SCL2
33Ω
+3.3V_Normal
1.2KΩ
IC8101
NTP7513(AMP)
I2C_SDA1
I2C_SCL1
100Ω
P7600
Local dimming
33Ω
IC101
HDCP EEPROM
22Ω
33Ω
IC100
NVRAM
2.7KΩ
+3.3V_Normal
I2C_SDA5
I2C_SCL5
33Ω
33Ω
I2C_SDA6
I2C_SCL6
TUNER(D)
2.7KΩ
+3.3V_Normal
33Ω
33Ω
IC3304
MHL
IC105
LGE 2122
2. LGE 2122 I2C Block Diagram
3. Power Block Diagram
3.5V
24V
+12V_LNB
LNB option
PANEL_VCC
PANEL_POWER
NTP_7400(PVDD1)
NTP_7400(PVDD2)
NTP_7400(PVDD2)
AMP
5V Normal
3A
3.3V DAC
MTK(AVDD33_DAC)
HDMI_EEPROM
RGB_EEPROM
CI (+5V_CI_ON)
TUNER(+5V_TU)
RGB_EEPROM
CI (+5V_CI_ON)
TUNER(+5V_TU)
1.2V Core
6A
MTK(AVDD12_LVDS)
MTK(AVDD_)
MTK(VCCK)
MTK(AVDD_)
MTK(VCCK)
MICOM(VDD)
IR A'ssy
IR A'ssy
1.5V DDR
3A
MTK (DDRV)
DDR(VDD)
DDR(VDDQ)
DDR(VDD)
DDR(VDDQ)
TUNER(+1.23V)
12V
5V USB
1CH DCDC 4A
2CH OCP 1.2A
USB2(Max 1.2A)
USB3(Max 1.2A)
USB3(Max 1.2A)
USB_WIFI
3.3V Noraml
4A
SPDIF
IR A'ssy
M_REMOTE
HDCP EEPROM
NVRAM
MTK (DVDD3V3)
MTK (AVDD33_AADC)
MTK (AVDD3V3)
MTK(AVDD3V3_MEMPLL
MTK(AVDD3V3_LVDS)
MTK(AVDD33_STB)
AUDIO AMP
EARPHONE AMP
EMMC(VCC)
EMMC(VCCQ)
TUNER(+3.3V_TU)
IR A'ssy
M_REMOTE
HDCP EEPROM
NVRAM
MTK (DVDD3V3)
MTK (AVDD33_AADC)
MTK (AVDD3V3)
MTK(AVDD3V3_MEMPLL
MTK(AVDD3V3_LVDS)
MTK(AVDD33_STB)
AUDIO AMP
EARPHONE AMP
EMMC(VCC)
EMMC(VCCQ)
TUNER(+3.3V_TU)
1.8V_TU
5V USB 3A
USB1(DVR Max 1.5A)
1.23V
2A
4. Tuner/CI Block Diagram
LGE 2122
TDSQ-
G501D
G501D
[RESET] 2
AG24 [ADIN6_SRV]
AF19[OPCTRL1]
AJ19 [OPCTRL0]
[SLC] 3
[SDA] 4
[+3.3V_TUNER] 5
[+.1.8V_TUNER] 7
[T/C_DIF[P]] 10
[T/C_DIF[N]] 11
[ERROR] 16
[SYNC] 17
[VALID] 18
[MCLK] 19
R29 [DEMOD_TSSYNC]
P27 [DEMOD_TSVAL]
P30 [DEMOD_TSCLK]
P27 [DEMOD_TSVAL]
P30 [DEMOD_TSCLK]
[D0-7] 20-27
[+1.23V_S2_DEMOD] 30
[S2_RESET] 31
AM18 [ADIN7_SRV]
[+3.3V_S2_DEMOD] 32
LNB
IC6900
A8303SESTR-TB
10 [TONECTRL]
2 [LNB]
7 [SCL]
8 [SDA]
[S2_F22_OUTPUT] 33
[LNB] 36
[S2_SCL] 34
[S2_SDA] 35
AP6 [SCL3]
AR6 [SDA3]
AR6 [SDA3]
AM27 [ADCINP_DEMOD]
AN27 [ADCINN_DEMOD]
/TU_RESET1
IC2_SCL6
IC2_SDA6
FE_DEMOD1_TS_SYNC
FE_DEMOD1_TS_VAL
FE_DEMOD1_TS_CLK
FE_DEMOD1_TS_VAL
FE_DEMOD1_TS_CLK
FE_DEMOD1_TS_DATA [0-7]
+1.23V_D_Demod
/S2_RESET
LNB_TX
I2C_SCL4
I2C_SDA4
I2C_SDA4
22 Ω
LNB_OUT
+3.3V_NORMAL
3.3K Ω
+1.8_TU
+3.3V_TU
+3.3V_D_Demod
IF_P
IF_N
IF_N
TUNER_SIF(for T2/C/S)
TU_CVBS(for
T2/C/S) IF_AGC
TU_CVBS(for
T2/C/S) IF_AGC
ADCINP_DEMOD
ADCINN_DEMOD
33 Ω
33Ω
Attenuator
47 Ω
MT5398_TS_OUT[0-7]
CI_MDI[0-7]
CI Slot
47 Ω
MT5398_TS_IN[0-7]
CI_TS_DATA[0-7]
/PCM_WE
/PCM_OE
/PCM_IRQA
/PCM_A_REG
PCM_INPACK
/PCM_WAIT
PCM_RST
CI_DATA[0-7]
CI_A_DATA[0-7]
CI_ADDR[0-14]
CI_A_ADDR[0-14]
/PCM_IORD
/PCM_IOWR
/PCM_CE2
/PCM_CE1
CI_VS1
/CI_CD1
/CI_CD2
/CI_CD2
CI 5V
Power detect
PCM_5V_CTL
+5V_CI_ON
CI_TS_SYNC
CI_TS_VAL
CI_TS_CLK
MTK5398_TS_SYNC
MTK5398_TS_VAL
MTK5398_TS_CLK
[DEMOD_TSDATA0-7]
[GPIO18-25]
TS_IN[0-7]
[GPIO34-41]
TS_OUT[0-7]
CI_DET1
L33[SPI_CLK]
CI_DET2
L30[SPI_CLK1]
VS1
M27[PVR_TS_VAL]
M31[CI_TSCLK]
CARD_EN1
CARD_EN2
10K Ω
N34[SPI_DATA]
N35[SPI_CLE]
IOWD
IORD
[GPIO0-14]
[GPIO26-33]
ADDR[0-14]
DAT[0-7]
T34[DEMOD_RST]
P34[PVR_TSDATA1]
N36[CI_INT]
P33[PVR_TSDATA0]
R36[CI_TSVAL]
R37[CI_TSSYNC]
R33[PVR_TSSYNC]
R3[PVR_TSCLK]
R35[CI_TSDATA0]
TS_OUT_CLK
TS_OUT_VAL
TS_OUT_SYNC
CI_RESET
CI_WAIT
INPACK
REG
/IRQA
O_EN
WR_EN
WR_EN
VCC
F28[TCON12]
+5V_CI_ON
+3.3V_NORMAL
47K Ω
5. Video/Audio In Block Diagram
LGE 2122
[CVBS2P]
Tuner
Jack Side
SoC Side
JK501
SCART
JK4600
COMP1_Y/AV1_CVBS
COMP1_Pb
COMP1_Pr
COMP1/AV1/DVI_L_IN
COMP1/AV1/DVI_R_IN
COMP1_Y/AV1_CVBS_SOC
COMP1_Pb_SOC
[PB0P]
[PR0P]
[AIN4_L_AADC]
COMP1_Pb_SOC
COMP1/AV1/DVI_L_IN_SOC
[AIN4_R_AADC]
COMP1/AV1/DVI_R_IN_SOC
SC_CVBS_IN
SC_ID/FB
SC_R/G/B
SC_L/R_IN
TU_CVBS
TUNER_SIF, IF_P/N
[CVBS3P]
SC_CVBS_IN_SOC
SC_FB_SOC
[ADIN0_SRV, SOY1]
[PR1P, PB1P, Y1P]
[AIN1_L/R_AADC]
SC_R/G/B_SOC
SC_L/R_IN_SOC
[CVBS1P]
[MPXP, ADCINP_DEMOD, ADCINN_DEMOD]
TU_CVBS
TUNER_SIF, IF_P/N
Parallel TS / ERROR,VAL,SYNC,CLK
Parallel TS / ERROR,VAL,SYNC,CLK
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