LG 47LV5500-UA (CHASSIS:LA12E) Service Manual ▷ View online
GP3-BCM (ATSC) trouble shooting guide
2010. 12. 13.
Applied chassis & models
Chassis: LA12E
Models : 42/47/55LV5500-UA
Models : 42/47/55LV5500-UA
42/47/55LV5400-UB
LCD TV Division
LCD TV Lab. / AT1Gr.
D-sub RGB
HDMI 1
DDR3 (2Gbit)
NAND Flash
(8Gbit)
Digital Audio (Optic)
Digital AMP
TAS5727
RS-232C (Ctrl./SVC)
I2S
NVRAM
RGB/H/V
DDR_Data[0:15], DQS, DM …
Addr.[ ], ctrl. data
MICOM
(NEC)
MAX3232
Data [0 … 7]
X-tal
AV1
Component 1
Y Pb Pr, L/R
CVBS, L/R
Addr[0…1], CS …
Audio L/R
Audio L/R (for RGB)
HDMI 2
HDMI 3
SPDIF
RX/TX
54MHz
JACK PACK
JACK PACK
at SIDE
at SIDE
JACK PACK
JACK PACK
at REAR
at REAR
SCL, SDA_3.3V
SCL, SDA_3.3V
LCD Module
USB2
Wireless Ready
Power
IF +/-
SIF
TU_CVBS
Reset / IF_AGC
…
…
SDA/SCL_5V
RF
UFA
55AL
MCLK
Ethernet
Side AV Gender
CVBS, L/R
USB1
DP/DM/ +5V
DP/DM/ +5V
Y Pb Pr, L/R
Side Component Gender
DDR3 (2Gbit)
HP_L/R
LVDS_120Hz
LGE35230
(ATSC)
LGE35230
(ATSC)
1. Overview for LGE35230 (ATSC) - US
SIL9287B
4x1
HDMI Switch
HP AMP
TPA6132
HDMI 4
M_REMOTE
(MODULE)
RX/TX
* 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
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