LG 55LEX8-SA (CHASSIS:LJ03S) Service Manual ▷ View online
* Each of analog audio signals shall be designed with “Common Mode (INCM) signal ”
2. Video Signal block (With Channel browser block)
D-sub RGB
HDMI 1
B(DSUB_B)
REAR AV
Component
CVBS(REAR_AV_CVBS)
H_sync(RGB_HSYNC)
Y(COMP1_Y)
Pb(COMP1_Pb)
Pr(COMP1_Pr)
G(DSUB_G)
R(DSUB_R)
HDMI_RX0+/-, RX1+/-, RX2 +/-, CLK +/-
HDMI_SDA
HDMI_SCL
LGE3549
SD_CVBS2
SD_Y2
SD_PB2
SD_PR2
SD_B
SD_R
SD_G
RGB_HSYNC
RGB_VSYNC
HDMI_RX_0_CLK_P
HDMI_RX_0_CLK_N
HDMI_RX_0_DATA0_P
HDMI_RX_0_DATA0_N
HDMI_RX_0_DATA1_P
HDMI_RX_0_DATA1_N
HDMI_RX_0_DATA2_P
HDMI_RX_0_DATA2_N
HDMI_RX_0_CLK_N
HDMI_RX_0_DATA0_P
HDMI_RX_0_DATA0_N
HDMI_RX_0_DATA1_P
HDMI_RX_0_DATA1_N
HDMI_RX_0_DATA2_P
HDMI_RX_0_DATA2_N
HDMI_RX_0_DDC_SCL
HDMI_RX_0_DDC_SDA
HDMI_RX_0_RESREF
HDMI_RX_1_RESREF
499Ω_1%
499Ω_1%
A2.5VI
TMDS
DDC
HPD_1
HDMI 2
HDMI 3
HDMI
4x1
Switch
(TDA19997)
TDTD-V056F
Main tuner
VSB
(LGDT 3305)
Video dec.
(TW9910)
IF +/- [SUB]
CVBS [SUB]
CHB IC
(LG1140)
656
CLK
Data
8
CLK
Data
SOP
Channel Browser부
SOP
PKT0_CLK
PKT0_DATA
PKT0_SYNC
V_sync(RGB_VSYNC)
TMDS
DDC
HPD_2
TMDS
DDC
HPD_3
GPIO-18
GPIO_17
GPIO_19
RF
* Each of analog signals shall be designed with “Common Mode (INCM) signal ”
3. Audio Signal block
BCM3549
TR
Buffer
SIF
LGE3549
AUDMX_LEFT1
AUDMX_RIGHT1
AUDMX_RIGHT1
AUD_SPDIF
ATSC/NTSC
TDTD-V056F
ATSC/NTSC
TDTD-V056F
MUTE
From Micom
From Micom
I2S_CLK_OUT
I2S_DATA_OUT
I2S_LR_OUT
NTP7000
NTP7000
SPDIF_OUT
I2S
SD_SIF1
Comp1/AV1 Audio (Rear)
REAR_AV_L_IN
REAR_AV_R_IN
RGB-PC Audio
AUDMX_LEFT5
AUDMX_RIGHT5
AUDMX_RIGHT5
PC_L_IN
PC_R_IN
MUTE
From Micom
From Micom
NTP7000
NTP7000
Speaker
Sound Bar
TPS65162RGZR
(P_VCOM,
VCOMLOUT,
VCOMROUT)
VGH_28V
VDD_16V
VCC_3.3V VGL_-5V
VCOMLOUT
80
pin
VGH / VDD /
VCC / VGL /
HVDD
4. Mini LVDS block
VCOMROUT
VLCD_12V
MAX15023
+3.3V_TCON
+1.8V_TCON
TL2425MC(T-CON)
MAX15026
HVDD_8V
TL2425MC(T-CON)
VGH / VDD /
VCC / VGL /
HVDD
80
pin
SOE
SOE
POL
(from FPGA)
POL
(from FPGA)
mini-LVDS
signals
mini-LVDS
signals
VCOMOUT
VCOMOUT
DP Cable
DPRX_ML_L0
DPRX_AUX
STD
P
4028
5. DP Tx/Rx with DP cable
STD
P
4020
DPRX_ML_L1
FRC_RESET
LLG5111_RESET
BCM3549
FRC
LG5111
NTP-7000
S
ound Bar
SOUNDBAR_L
SOUNDBAR_R
BLU_ON_OFF
Powe
r B/D
LED Driver
24V
DC-D
C
PWM
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