LG 55LV5400 (CHASSIS:LA12E) Service Manual ▷ View online
* Each of analog audio signals shall be designed with “Common Mode (INCM) signal ”
2. Video Signal block
D-sub RGB
HDMI 1
SIDE_CVBS Phone JACK
CVBS(SIDE_AV_CVBS)
B(DSUB_B)
REAR AV
Component 1
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 +/-
LGE35230
VI_CVBS2
VI_CVBS4
VI_SC_G1
VI_SC_B1
VI_SC_R1
VI_B
VI_R
VI_G
HSYNC_IN
VSYNC_IN
HDMI0_CLKN
HDMI0_CLKP
HDMI0_D0P
HDMI0_D0N
HDMI0_D1P
HDMI0_D1N
HDMI0_D2P
HDMI0_D2N
HDMI0_CLKP
HDMI0_D0P
HDMI0_D0N
HDMI0_D1P
HDMI0_D1N
HDMI0_D2P
HDMI0_D2N
TMDS
DDC
HPD_1
HDMI 2
HDMI 3
HDMI 4
HDMI
4x1
Switch
(Sil9287B)
IF + [MAIN]
CVBS [MAIN]
IF - [MAIN]
VI_IFP0
VI_IFM0
VI_IFM0
VI_CVBS3
V_sync(RGB_VSYNC)
TMDS
DDC
HPD_2
TMDS
DDC
HPD_3
TMDS
DDC
HPD_4
RF
SIDE_Component Phone Jack
Y(SIDE_COMP-Y)
Pb(SIDE_COMP-Pb)
Pr(SIDE_COMP-Pr)
VI_Y1
VI_PR1
VI_PB1
UFA55AL
Main tuner
SCL3_3.3V / SDA3_3.3V
I2SWS_IN
I2SSD_IN/GPIO
ARC
HDMI0_ARC
* Each of analog signals shall be designed with “Common Mode (INCM) signal ”
3. Audio Signal block
BCM3549
TR
Buffer
SIF
LGE35230
AADC_LINE_L3
AADC_LINE_R3
AADC_LINE_R3
SPDIF_OUT
ATSC/NTSC
UFA55AL
ATSC/NTSC
UFA55AL
MUTE
From Micom
From Micom
I2SSCK_OUT
I2SWS_OUT
I2SSD_OUT
I2SSOSCK_OUT
TAS5727
TAS5727
SPDIF_OUT
I2S
HP_L/R
TPA6132
(HP AMP)
TPA6132
(HP AMP)
VI_SIF1_1,2
AV1 Audio (Rear)
REAR_AV_L_IN
REAR_AV_R_IN
AADC_LINE_L4
AADC_LINE_R4
AADC_LINE_R4
Comp1 Audio (Rear)
COMP1_L_IN
COMP1_R_IN
AUDMX_LEFT4
AUDMX_RIGHT4
AUDMX_RIGHT4
AV2 or Comp2 Audio
(Used in common)
(Used in common)
SIDE_AV_L_IN
SIDE_AV_R_IN
RGB-PC Audio
AADC_LINE_L1
AADC_LINE_R1
AADC_LINE_R1
PC_L_IN
PC_R_IN
HP_LOUT_N
HP_LOUT_P
HP_ROUT_N
HP_ROUT_P
4. LVDS Tx (FHD120Hz)
LGE35230
LVDS Tx
Block
LVDS_SEL
BIT_SEL
• LVDS_SEL : “H”=JEIDA, “L” or NC=VESA (LGD)
• BIT_SEL : “H” or NC = 10-bit, “L” = 8-bit
• BIT_SEL : “H” or NC = 10-bit, “L” = 8-bit
10-bit (R)
Dual-link LVDS Output
24
51Pin
LVDS
LVDS
Output
PANEL_VCC
(+12V)
10-bit (R)
Dual-link LVDS Output
24
41Pin
LVDS
LVDS
Output
5. HDMI block
TMDS1/2/3/4[8]
TMDS_OUT[8]
LGE35230
HDMI_I2
C
C
CEC_
REMOTE
REMOTE
FET
IC602
MICOM
UPD78F05
IC602
MICOM
UPD78F05
DDC_I2C_1/2/3/4
HP
D
D
HPD_1/2/3/4
HDMI_CEC
Sil9287B
HDMI 4x1 Switch
(IC701)
Sil9287B
HDMI 4x1 Switch
(IC701)
5V_HDMI_1/2/3/4
HDMI_5V
EEPROM
ARC
(Audio Return Channel)
Click on the first or last page to see other 55LV5400 (CHASSIS:LA12E) service manuals if exist.