LG 55LA66 Series Service Manual page 22

PLACE AT JACK SIDE
+5V_NORMAL
R308
1.2K
OPT
R302 10V
180
ARC C311 1uF
R303
82 R309
100K
IC105
LGE2122[A2_M13]
V26 AG30
HDMI_CEC TP381 HDMI_CEC HDMI_0_RX_0
AG31
HDMI_0_RX_0B
AC27 AF30
HDMI_0_SCL HDMI_0_RX_1
AB27 AF31
DDC_SCL_3_JACK HDMI_1_SCL HDMI_0_RX_1B
AA26 AE32
DDC_SCL_1_SOC HDMI_2_SCL HDMI_0_RX_2
W27 AE33
DDC_SCL_MHL HDMI_3_SCL HDMI_0_RX_2B
AG32
HDMI_0_RX_C
AC26 AG33
HDMI_0_SDA HDMI_0_RX_CB
AB26
DDC_SDA_3_JACK
HDMI_1_SDA
Y26 AD30
DDC_SDA_1_SOC HDMI_2_SDA HDMI_1_RX_0
W26 AD31
DDC_SDA_MHL
HDMI_3_SDA HDMI_1_RX_0B
AC32
HDMI_1_RX_1
AE29 AC33
HDMI_0_PWR5V HDMI_1_RX_1B
R305
1K Y27 AC30
5V_HDMI_3_JACK HDMI_1_PWR5V HDMI_1_RX_2
R306 1K AA28 AC31
5V_HDMI_1_SOC HDMI_2_PWR5V HDMI_1_RX_2B
R307 1K V28 AE30
5VBUS HDMI_3_PWR5V HDMI_1_RX_C
AE31
HDMI_1_RX_CB
AD29
HDMI_0_HPD
AA27 Y30
HDMI_HPD_3_JACK
HDMI_1_HPD HDMI_2_RX_0
AA29 Y31
HDMI_HPD_1_SOC HDMI_2_HPD HDMI_2_RX_0B
V29 W32
HDMI_HPD_4_MHL HDMI_3_HPD HDMI_2_RX_1
+1.2V_MTK_AVDD W33
HDMI_2_RX_1B
AA33 W30
AVDD12_HDMI_0_RX HDMI_2_RX_2
AA32 W31
C303 C306 AVDD12_HDMI_1_RX HDMI_2_RX_2B
0.1uF 0.1uF P33 AA30
AVDD12_HDMI_2_RX HDMI_2_RX_C
VDD3V3_HDMI
P32 AA31
AVDD12_HDMI_3_RX HDMI_2_RX_CB
AH33 U30
AVDD33_HDMI HDMI_3_RX_0
U31
HDMI_3_RX_0B
C304 C307 T32
0.1uF 0.1uF HDMI_3_RX_1
T33
HDMI_3_RX_1B
T30
HDMI_3_RX_2
AE27 T31
AVSS33_HDMI_RX_1 HDMI_3_RX_2B
T25 V30
AVSS33_HDMI_RX_2 HDMI_3_RX_C
W25 V31
AVSS33_HDMI_RX_3 HDMI_3_RX_CB
AD27
AVSS33_HDMI_RX_4
IC105
LGE2122[A2_M13]
H32
USB_DP3
USB_DP_P0 TXVP_0
H33
USB_DM3 USB_DM_P0 TXVN_0
J32
USB_DP2 USB_DP_P1 RXVP_1
J31
USB_DM2 USB_DM_P1 RXVN_1
Port was changed !!!!
K32
USB_DP1 USB_DP_P2 PHYLED1
K31
USB_DM1 USB_DM_P2 PHYLED0
0 R382
WIFI_DP AN10
0 USB_DP_P3 REXT
AM10
USB_DM_P3
R383 Wake On Lan
WIFI_DM VDD3V3
K33
C398 C399 AVDD33_USB_P0P1P2 AVDD33_ETH
AN8
5pF 5pF AVDD33_USB_P3 AVSS33_ELDO
50V 50V C302
0.1uF M25
WIFI_EMI WIFI_EMI
AVSS33_USB_P1 AVSS33_LD
AE11
AVSS33_USB_P3 AVSS33_COM
HP_OUT
L303
BLM18PG121SN1D
HP_LOUT_AMP HP_LOUT
HP_OUT
C332
0.22uF
10V
HP_OUT
L302
BLM18PG121SN1D
HP_ROUT_AMP HP_ROUT
HP_OUT
C331
0.22uF
10V
Place at JACK SIDE
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
HDMI_ARC
D0+_HDMI3_JACK
D0-_HDMI3_JACK
D1+_HDMI3_JACK
D1-_HDMI3_JACK
D2+_HDMI3_JACK
D2-_HDMI3_JACK
CK+_HDMI3_JACK
CK-_HDMI3_JACK
+1.2V_MTK_AVDD
D0+_HDMI1_SOC
D0-_HDMI1_SOC
D1+_HDMI1_SOC
D1-_HDMI1_SOC
C350
D2+_HDMI1_SOC
0.1uF
D2-_HDMI1_SOC
CK+_HDMI1_SOC
CK-_HDMI1_SOC
D0+_HDMI4_MHL
D0-_HDMI4_MHL
D1+_HDMI4_MHL
D1-_HDMI4_MHL
D2+_HDMI4_MHL
D2-_HDMI4_MHL
CK+_HDMI4_MHL
CK-_HDMI4_MHL
AL13
EPHY_TDP
AM13
For PCB Pattern
EPHY_TDN
AL12
EPHY_RDP SC_R_IN_SOC
AM12
EPHY_RDN SC_L_IN_SOC
AF13
MODEL_OPT_1
AJ13
/TU_RESET2
AN12 24K R315
AVDD_33SB
AN14
C328
AE13
0.1uF
AC16
COMP1/AV1/DVI_R_IN_SOC
AC15
COMP1/AV1/DVI_L_IN_SOC
Close to AVDD33_ADAC & AVDD33_AADC
VDD3V3
L304
C365
10uF
10V
TUNER_SIF
Close to MT5369
TU_S/N/Q_T/US/KR/TW
C312
Close to Tuner
33pF
TU_S/N/Q_T/US/KR/TW
R346
1K R334 51
IF_P
C336
1uF
TU_S/N/Q_T/US/KR/TW
10V
TU_S/N/Q_T/US/KR/TW TU_S/N/Q_T/US/KR/TW
R331
1K C337 1uF R335 51
IF_N
10V TU_S/N/Q_T/US/KR/TW
TU_S/N/Q_T/US/KR/TW C310
33pF
TU_S/N/Q_T/US/KR/TW
TU_S/N/Q_T/US/KR/TW
R332 10K
IF_AGC
Close to Tuner
C341
0.047uF
TU_S/N/Q_T/US/KR/TW
SC_CVBS_IN_SOC
For PCB Pattern
COMP1_Y/AV1_CVBS_SOC
Close to JACK
Close to Main Chip
C345
10uF 1608 sizs For EMI
16V
R344
COMP1/AV1/DVI_L_IN COMP1/AV1/DVI_L_IN_SOC
30K
R328
C338 C342
470K
560pF
100pF
OPT
50V 50V
OPT
C346
10uF 1608 sizs For EMI
16V
R345
COMP1/AV1/DVI_R_IN COMP1/AV1/DVI_R_IN_SOC
30K
R329 C339 C343
470K 560pF
100pF
OPT 50V 50V
OPT
IC105
LGE2122[A2_M13]
Y1
BE0P TXC4N
Y2
BE0N TXC4P
W3
BE1P TXC3N
W4
BE1N TXC3P
V3
BE2P TXCCLKN
V4
BE2N TXCCLKP
V1
TXC2N
BECKP
V2
TXC2P
BECKN
U3
TXC1N
BE3P
AA8 U4
MODEL_OPT_8 TCON0 BE3N TXC1P
AA9 T3
MODEL_OPT_9 TCON1 BE4P TXC0N
W6 T4
MODEL_OPT_10 TCON2 BE4N TXC0P
U6
GCLK_SOC TCON3
U7 AD1
MCLK_SOC TCON4 BO0P TXD4N
V8 AD2
GST_SOC TCON5 BO0N TXD4P
V6 AC3
EO_SOC TCON6 BO1P TXD3N
AB7 AC4
VCOM_DYN TCON7 BO1N TXD3P
W9 AB3
PMIC_RESET TXDCLKN
TCON8 BO2P
U8 AB4
2D/3D_CTL TXDCLKP
TCON9 BO2N
U9 AB1
MODEL_OPT_2 TXD2N
TCON10 BOCKP
V9 AB2
PCM_5V_CTL TCON11 BOCKN TXD2P
V7 AA3
USB_CTL2
TCON12 BO3P TXD1N
AA4
BO3N TXD1P
Y3
BO4P TXD0N
Y4
BO4N TXD0P
AN1
AVDD12_LVDS_1
C354 AN2 AH1
AVDD12_LVDS_2 AE0P TXA4N
VDD3V3
0.1uF AN3 AH2
AVDD12_LVDS_3 AE0N TXA4P
AN4 AG3
TXA3N
AVDD33_LVDS AE1P
AG4
TXA3P
C347 AE1N
AF3
0.1uF TXACLKN
AE2P
AM4 AF4
AVSS12_LVDS_1 AE2N TXACLKP
AM3 AF1
AVSS12_LVDS_2 AECKP TXA2N
AF5 AF2
AVSS12_LVDS_3 AECKN TXA2P
AE3
AE3P TXA1N
AE5 AE4
AVSS33_LVDS_1 AE3N TXA1P
AC5 AD3
AVSS33_LVDS_2 AE4P TXA0N
V5 AD4
AVSS33_LVDS_3 AE4N TXA0P
T1 AM1
TXB4N
REXT_VPLL AO0P
AM2
R343 TXB4P
AO0N
24K AL3
TXB3N
AO1P
1% AL4
AO1N TXB3P
AK3
AO2P TXBCLKN
AK4
AO2N TXBCLKP
AK1
AOCKP TXB2N
AK2
AOCKN TXB2P
AJ3
AO3P TXB1N
AJ4
AO3N TXB1P
AH3
AO4P TXB0N
AH4
TXB0P
AO4N
IC105
LGE2122[A2_M13]
AL32 AK30
AIN1_R_AADC AR0_ADAC
AN32 AJ29
AIN1_L_AADC AL0_ADAC
AM33
PC_R_IN_SOC TP379 AIN2_R_AADC
AM31 AJ31
PC_L_IN_SOC TP380 AIN2_L_AADC AR1_ADAC
AM32 AK29
AIN3_R_AADC AL1_ADAC
AK33
AIN3_L_AADC
AL33 AJ30
AIN4_R_AADC AR2_ADAC Ready For commercial Audio_R_OUT
AN33 AH28
AIN4_L_AADC AL2_ADAC
Ready For commercial Audio_L_OUT
AJ33
AVDD33_ADAC
AC23
AVSS33_ADAC
AVDD3V3_AADC
AVDD3V3_AADC
AJ32
AVDD3V3_AADC AVDD33_AADC
C305 AC24 AG9
C362
AVSS33_AADC ALIN
1uF 0.1uF AG10
10V ASPDIF0
AN31 V27
VMID_AADC ASPDIF1
AK9
AOBCK
C352 0.01uF AH25 AJ9
MPXP AOLRCK
AF10
R339 TU_A_GLOBAL_6/7
AOMCLK
AH9
2.2K
AOSDATA4
OPT AK8
C358 C363
AOSDATA3
1uF AJ8 Don't use as GPIO
0.1uF
10V AOSDATA2
AH8
AOSDATA1
AJ10
AOSDATA0
IC105
LGE2122[A2_M13]
VDD3V3 AM27 AK18
ADCINP_DEMOD HSYNC TP376
+1.2V_MTK_AVDD AN27 AL18
ADCINN_DEMOD VSYNC TP305
AL20
RP TP303
C364 AN26 AM20
0.1uF AVDD33_DEMOD GP TP306
C351 AL19
0.1uF BP TP304
AN28 AN20
AVDD12_DEMOD COM TP382
AK19
SOG TP383
AL28 AG22
TU_S/N/Q_T/US/KR/TW AVSS33_DEMOD VGA_SDA TP301
AL27 AH22
R342 10K AVSS12_DEMOD VGA_SCL TP302
C355
AL21
0.047uF COM1
TU_S/N/Q_T/US/KR/TW AK22
PB1P
L26 AL22
IF_AGC PR1P
M28 AM21
Close to MT5369 TP300 RF_AGC Y1P
AN21
SOY1
AJ27 AM23 0.01uF C371 51
LOUTN COM0
AK27 AL23 0.01uF C372 51
LOUTP PB0P
AL24 0.01uF C373 51
PR0P
N27 AN23 0.01uF C374 51
OSCL2 OSCL2 Y0P
N26 AK23 1500pF C375
OSDA2 OSDA2 SOY0
OPT
AH24 0 R349
VDACX_OUT
AJ24 10 R350
VDACY_OUT
EU
VDD3V3
AK26 AN25
CVBS3P AVDD33_VIDEO
R341 100 C360 0.047uF AM25
CVBS2P
R340 100 C359 0.047uF AH26
TU_CVBS CVBS1P
TU_A_GLOBAL_6/7 TU_A_GLOBAL_6/7 AK25 AN18
CVBS0P AVDD12_RGB
C361 1uF AJ26 +1.2V_MTK_AVDD
CVBS_COM
Near the SOC
VDD3V3
AM26 AC19
AVDD33_CVBS AVSS33_VDAC_BG
C382
AK17
AVSS12_RGB 0.1uF
AE20
AVSS33_VDAC
AB20
AVSS33_CVBS_1
AB22
AVSS33_CVBS_2
1.0Vpp
1608 sizs For EMI
0 R374
COMP1_Y/AV1_CVBS
C388 C394
C384
R355
27pF 27pF
75 10pF
50V 50V
50V
OPT OPT
1%
1608 sizs For EMI
0 R373
COMP1_Pb
C386 C391
27pF 27pF R354 C379
75
50V 50V 10pF
50V
OPT OPT 1%
1608 sizs For EMI
0 R372
COMP1_Pr
C385
C392 C378
R353
27pF 27pF 75 10pF
50V
FOR EMI 50V 50V
1%
OPT OPT
For PCB Pattern
HP_OUT HP_OUT
1.2K R351 1.2K R369
HP_ROUT_MAIN
1.2K R352 1.2K R370
HP_LOUT_MAIN
C377 C390 C395
HP_OUT C383 HP_OUT
1200pF 1200pF 1200pF 1200pF
HP_OUT
HP_OUT HP_OUT HP_OUT
SCART_Rout_SOC
SCART_Lout_SOC
SPDIF_OUT
ARC
R366 100
AUD_SCK
R367 100
AUD_LRCK
R368 100
AUD_MASTER_CLK
R371 100
AUD_LRCH
C387 C389
C393 C396
22pF 22pF 22pF 33pF
OPT OPT OPT OPT
SC_COM_SOC
SC_G_SOC
SC_R_SOC
SC_B_SOC
SC_FB_SOC
R361
R362 For PCB Pattern
R363
COMP1_COM_SOC
R364
COMP1_Pb_SOC
COMP1_Pr_SOC
COMP1_Y/AV1_CVBS_SOC
DTV/MNT_V_OUT_SOC
COMP1_Y/AV1_CVBS_SOC
R381
0
COMP1_COM_SOC
1/16W
COMP1_Pb_SOC
COMP1_Pr_SOC
CI_ADDR[0-14]
CI_ADDR[0]
TP312
CI_ADDR[1]
TP313
CI_ADDR[2]
TP314
CI_ADDR[3]
TP315
CI_ADDR[4]
TP316
CI_ADDR[5]
TP317
CI_ADDR[6]
TP318
CI_ADDR[7]
TP319
CI_ADDR[8]
TP320
CI_ADDR[9]
TP321
MT5398_MCLKI CI_ADDR[10]
TP322
MT5398_MIVAL_ERR CI_ADDR[11]
TP323
MT5398_MISTRT CI_ADDR[12]
TP324
CI_ADDR[13]
TP325
CI_ADDR[14]
TP326
MT5398_TS_OUT[0-7] TP327
TP328
TP329
MT5398_TS_OUT[0]
TP330
MT5398_TS_OUT[1]
TP331
MT5398_TS_OUT[2]
TP332
MT5398_TS_OUT[3]
TP333
MT5398_TS_OUT[4]
TP334
MT5398_TS_OUT[5]
CI_DATA[0-7] TP335
MT5398_TS_OUT[6]
TP336
MT5398_TS_OUT[7]
TP337
CI_DATA[0]
TP338
CI_DATA[1]
TP339
CI_DATA[2]
TP340
CI_DATA[3]
TP341
CI_DATA[4]
TP342
CI_DATA[5]
TP343
CI_DATA[6]
TP344
CI_DATA[7]
TP345
MT5398_TS_IN[0]
TP346
MT5398_TS_IN[1]
TP347
MT5398_TS_IN[2]
TP348
MT5398_TS_IN[3]
TP349
MT5398_TS_IN[4] TP350
MT5398_TS_IN[5] TP351
MT5398_TS_IN[6] TP352
MT5398_TS_IN[7]
TP353
SC_ID_SOC TP354
/CI_CD2 TP355
/CI_CD1
TP356
/PCM_IORD
TP357
/PCM_IOWR
TP358
PCM_RST
TP307
/PCM_REG
TP308
/PCM_CE1 TP309
MT5398_TS_SYNC
TP310
/PCM_WE
TP311
/PCM_OE
TP359
MT5398_TS_VAL
TP360
CI_A_VS1
TP361
MT5398_TS_CLK
TP362
/PCM_IRQA TP363
/PCM_WAIT TP364
SC_R_IN_SOC
TP365
SC_L_IN_SOC TP366
SC_CVBS_IN_SOC TP367
SC_COM_SOC TP368
SC_G_SOC TP369
SC_R_SOC TP370
SC_B_SOC TP371
SC_FB_SOC
TP372
DTV/MNT_V_OUT_SOC
TP373
SCART_Rout_SOC
TP374
SCART_Lout_SOC TP375
PCM_5V_CTL TP377
SC_DET TP378
MID_MAIN_2 2011.12.19
9
LGE Internal Use Only