LG HW300Y Service Manual page 15

M1
MGJ63021801
845 OHM 1%
R501 R502
820 24
TU_ATTEN
1/16W 1/16W
002:H2
C501 1% 5% NEED TO VERY CLOSE TO RF LINE
0.1uF BECAUSE THIS POINT MAKE ATTENUATOR
16V
C506
C503
0.1uF
2200pF
16V
50V
DO NOT CHANGE ORDER
C515 1000pF
50V
KCN-BT-0-0089 C502 12nH
C505
JK1502
56pF 39pF L503
C516 0.1uF
50V 50V
0603CS-12NXGLW
1
2
C514 0.1uF
1008CS-821XGLC
C517 0.1uF
C504
RCLAMP0502B 120pF
Isolation & Impedance 75ohm D500 50V
+5V_NORMAL
D907
ENKMC2838-T112
A1
C
A2
IC1402
R1EX24002ASAS0A
A0 VCC
1 8
R1432
A1 WP 100
2 7
A2 SCL R1428
3 6
22
VSS 5 SDA R1426
4
22
EAN60997601
P901
KCN-DS-3-0062
6
6
BCM Reference
11
1
11 R1435 DSUB_R
1
7
10
7
12
2 12 R1434 DSUB_G
2
8
8 10
13
3 13
R1436
3
9
9 10
14
4 14
4
10
10
15
5 15
5
16
16
+3.3V_NORMAL
JK901
R975 R908
KJA-PH-1-0177 DSUB_DET
5 M5_GND 10K 1K
4 M4
3 M3_DETECT
1 M1
+3.3V_NORMAL
6 M6
R909
COMP_DET
1K
JK902
KJA-PH-1-0177
R168
5.1
5 M5_GND
R914
4 M4 0
C912 1uF
3 M3_DETECT
R913
0
1 M1
C909 1uF
6 M6
+3.3V_NORMAL
10K
REAR_AV_DET
R911
R903
1K
M8
4814V00112J
M8
M5
4814V00112J
M4
4814V00112J
OPT
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 © 2011 LG Electronics Inc. All rights reserved.
Only for training and service purposes
ATSC Tuner
+3.3V_TU
+3.3V_TU +1.8V_TU
16V
0.1uF
C543
XC5000_RESET
16V
10
0.1uF R517 +3.3V_TU
C542
OPT
R526
4.7K
VDDA_1 1 36 GND_8
IN1 2 35 SDA R523 100
GND_1 SCL
3 34 R524 100
IN2 VDDD_2 C550 C551
4 33
IC501 18pF 18pF
L508 GND_2 EXTREF
5 32 C540 0.1uF
50V 50V
EXTCHOKE XC5000C X1
6 31
GND_3 GND_7 X501 C545
7 0xC8 30
31.875MHz
18pF
VDDA_2 8 29 X2
1 4 GND_2 50V
X-TAL_1
VDDA_3 ADDRSEL
9 28
VDDC_1 DDI2 2 3 X-TAL_2
10 27 GND_1
GND_4 VDDC_5 TUNER2 I2C Address : 0xC8
11 26 C541 0.1uF
VDDC_2 DDI1
12 25
R512
1K
1/16W
C539
0.1uF 5%
16V
L802
BG1608B501F
C805
10uF
6.3V
R528
680
C581
6.8pF
50V
R529
680
C582
6.8pF
50V
EDID_WP
MAIN_TU_IF_OUT-
RGB_DDC_SCL R505 0
E
RGB_DDC_SDA
Q803
C520
ISA1530AC1
B R506 0 33pF
E 50V
C
ISA1530AC1
B Q804
MAIN_TU_IF_OUT+
C
DSUB_B
R1438 22
DSUB_HSYNC
R1437 22
DSUB_VSYNC
L908 CM2012FR27KT
R919 10
L909 CM2012FR27KT
R917 0
L910 CM2012FR27KT
R918 0
PC_LR_INCM
R921 12
TU_CVBS_IN
AUDIO_RIN
AUDIO_LIN
R904 12
A2.5V
C964
0.1uF
TU_SIF
001:Z26 C965 0.1uF
DSUB_HSYNC
DSUB_HSYNC
DSUB_VSYNC
M3
MDS62110211
M7 M6
MDS62110212 4814V00112J
OPT OPT
Tuner Power
IC502
+5V
+3.3V_TU
AZ1117D-3.3TRE1
L513
MLB-201209-0120P-N2
INPUT 3 2 OUTPUT
1
C565 C566 C561 ADJ/GND C570 C557 C563 C568 C574
22uF 22uF 0.1uF 22uF 10uF 10uF 0.1uF 22uF
10V 10V 16V 10V 6.3V 6.3V 16V 10V
R527
4.7K
SDA0_3.3V
SCL0_3.3V
IC503
AZ1117BH-1.8TRE1
L515
BLM18PG121SN1D
IN OUT
3 2
1
C567 C562
ADJ/GND
22uF 0.1uF
10V 16V
+5V_NORMAL
+5V
Close to BCM(for EMI)
BCM3549 VIDEO
+5V_NORMAL
I2S_AUD_FS1_CLK
R929 IC900
510
LGE3549XS (LGE3549XS P22 , B2 version)
R943
R892
W26 AC20
DS_AGCI_CTL I2S_CLK_IN
200 W25 AD20 22 R934
2K
DS_AGCT_CTL I2S_CLK_OUT
V20 AA19
EDSAFE_AVSS_1 I2S_DATA_IN
A1.2V W21 AF21 22 R935
EDSAFE_AVSS_2 I2S_DATA_OUT
W22 AB20
A2.5V EDSAFE_AVSS_3 I2S_LR_IN
BLM18PG121SN1D Y23 AE20 22 R936
L900 EDSAFE_AVSS_4 I2S_LR_OUT
AA24 AC26 0 R8218
EDSAFE_AVSS_5 AUD_LEFT0_N
Y26 AC25 0 R8219
C910 0.1uF
EDSAFE_AVSS_6 AUD_LEFT0_P
Y24 AB25
C911 4.7uF A2.5V
EDSAFE_AVDD2P5 AUD_AVDD2P5_0
AB26 W19
C935 0.1uF C947 10uF
EDSAFE_DVDD1P2 AUD_AVSS_0_1
AA26 W20
C1133 0.01uF C942 0.1uF
EDSAFE_IF_N AUD_AVSS_0_2
AA25 Y22
C1134 0.01uF C936 0.01uF
EDSAFE_IF_P AUD_AVSS_0_3
Y21 AA23
C918 4.7uF
PLL_DS_AVDD1P2 AUD_AVSS_0_4
C915 0.1uF R21
PLL_DS_TESTOUT
L901 AD25 R8216 0
A1.2V
AUD_RIGHT0_N
AD26 R8217 0
BLM18PG121SN1D AUD_RIGHT0_P
AA16 AF25
SD_V1_AVDD1P2 AUD_LEFT1_N
AB13 AE25
C916 1000pF
SD_V1_AVDD2P5 AUD_LEFT1_P
W14 AE26
C919 0.01uF
SD_V1_AVSS_1 AUD_RIGHT1_N
AA15 AF26
A2.5V SD_V1_AVSS_2 AUD_RIGHT1_P
L902 AB15 AB24
A2.5V
BLM18PG121SN1D SD_V2_AVDD1P2 AUD_AVDD2P5_1
AB14 AA22
C948 10uF
SD_V2_AVDD2P5 AUD_AVSS_1_1
L903 AB23
C943 0.1uF
BLM18PG121SN1D AUD_AVSS_1_2
C937 0.01uF
C920 0.01uF AD23
AUD_LEFT2_N
C917 1000pF AA14 AC23
SD_V3_AVDD1P2 AUD_LEFT2_P
AC15 AD24
SD_V3_AVDD2P5 AUD_RIGHT2_N
Y14 AE24
C908 0.1uF
SD_V2_AVSS AUD_RIGHT2_P
W13 AC24
C907 0.1uF A2.5V
SD_V3_AVSS_1 AUD_AVDD2P5_2
Y13 Y20
C949 10uF
SD_V3_AVSS_2 AUD_AVSS_2_1
AA13 AA21
C944 0.1uF
SD_V4_AVDD1P2 AUD_AVSS_2_2
Y11 AB22
C938 0.01uF
SD_V4_AVDD2P5 AUD_AVSS_2_3
Y12 AC22
SD_V4_AVSS AUD_AVSS_2_4
AB19 AF5
SD_V5_AVDD1P2 AUD_SPDIF
AC19 AD5
A2.5V
SD_V5_AVDD2P5 SPDIF_AVDD2P5
AA18 AF4
C939 0.1uF
SD_V5_AVSS SPDIF_IN_N
AE5
SPDIF_IN_P
AD6
AB12 SPDIF_AVSS_1
C921 0.1uF AB8
SD_R
AA12 SPDIF_AVSS_2
C905 0.1uF
SD_INCM_R AA9
AC11 SPDIF_AVSS_3
C922 0.1uF
SD_G
AD11
C961 0.1uF
SD_INCM_G
AF11
C923 0.1uF R972 OPT
SD_B AE3 1K
C962 0.1uF AE11 HDMI_RX_0_CEC_DAT
SD_INCM_B AA6 R993 1K
AE17 HDMI_RX_0_HTPLG_IN
C924 0.1uF AA5 R964 1K
SD_Y1 +5V_NORMAL
AC17 HDMI_RX_0_HTPLG_OUT
C925 0.1uF
SD_PR1 AB3 R999 22
AD17 HDMI_RX_0_DDC_SCL
C926 0.1uF
SD_PB1 Y6 R988 22
AF17
C904 0.1uF HDMI_RX_0_DDC_SDA
SD_INCM_COMP1 AC4 R930 499
AE18
HDMI_RX_0_RESREF
SD_Y2 AC1 R101
AF19 HDMI_RX_0_CLK_N
SD_PR2 AC2
R102
AD18 HDMI_RX_0_CLK_P
AD1
SD_PB2 R103
AF18 HDMI_RX_0_DATA0_N
AD2
SD_INCM_COMP2 R104
AE16 HDMI_RX_0_DATA0_P
SD_Y3 AE1 R105
AD16 HDMI_RX_0_DATA1_N
SD_PR3 AE2 R106
AC16
HDMI_RX_0_DATA1_P
SD_PB3 AF1 R107
AF16
HDMI_RX_0_DATA2_N
SD_INCM_COMP3 AF2 R108
AF12 HDMI_RX_0_DATA2_P
SD_L1 AD3
AE12 HDMI_RX_0_VDD3P3
AD4
SD_C1
AC12 HDMI_RX_0_VDD1P2
SD_INCM_LC1 AC3
AC13 HDMI_RX_0_VDD2P5
SD_L2 AB5 C957 0.1uF
AD13
HDMI_RX_0_AVSS_1
SD_C2 V8 BLM18PG121SN1D
AF13 C941 4.7uF
HDMI_RX_0_AVSS_2
SD_INCM_LC2 W8
C953 0.1uF
AF15 HDMI_RX_0_AVSS_3
SD_L3 AF3
C954 10uF
AC14 HDMI_RX_0_AVSS_4
AC5
SD_C3 C950 1000pF BLM18PG121SN1D
AD14 HDMI_RX_0_AVSS_5
W6
SD_INCM_LC3 C945 0.01uF
AB11 HDMI_RX_0_PLL_AVSS
C891 0.1uF
SD_CVBS1 AE4
C903 AE13 HDMI_RX_0_PLL_DVDD1P2
0.1uF
SD_CVBS2 W7
AE14
HDMI_RX_0_PLL_DVSS BLM18PG121SN1D
SD_CVBS3
AD15 R931 10K
AA3
SD_CVBS4 HDMI_RX_1_CEC_DAT
C970 0.1uF AA11 V4 R948 OPT 10K
SD_INCM_CVBS1 HDMI_RX_1_HTPLG_IN
AD12 U6 R990 10K
C931 0.1uF
SD_INCM_CVBS2 HDMI_RX_1_HTPLG_OUT
AF14 V5 R956 10K
SD_INCM_CVBS3 HDMI_RX_1_DDC_SCL
AE15 V3 R957 10K
+5V_NORMAL
SD_INCM_CVBS4 HDMI_RX_1_DDC_SDA
AD19 W4 R932
499 A2.5V
SD_SIF1 HDMI_RX_1_RESREF
AE19 W2
SD_INCM_SIF1 HDMI_RX_1_CLK_N
C933 0.1uF W3
HDMI_RX_1_CLK_P
AB16 Y1
C934 4.7uF
PLL_VAFE_AVDD1P2 HDMI_RX_1_DATA0_N
L904 Y16 Y2
BLM18PG121SN1D PLL_VAFE_AVSS HDMI_RX_1_DATA0_P
Y15 AA2
A1.2V
PLL_VAFE_TESTOUT HDMI_RX_1_DATA1_N
AB6 AA1
RGB_HSYNC HDMI_RX_1_DATA1_P
AC6 AB2 D3.3V
A1.2V A2.5V
RGB_VSYNC HDMI_RX_1_DATA2_N
+3.3V_NORMAL
AB1
HDMI_RX_1_DATA2_P
Y3
IC1404 HDMI_RX_1_VDD3P3
NL17SZ08DFT2G Y4
HDMI_RX_1_VDD1P2
W5
HDMI_RX_1_VDD2P5
W1
1 5
HDMI_RX_1_AVSS_1 C940 C952
U5
HDMI_RX_1_AVSS_2 4.7uF 0.1uF
V6
2
HDMI_RX_1_AVSS_3
DEV U7
HDMI_RX_1_AVSS_4
R941 22 U8
3 4
HDMI_RX_1_AVSS_5
Y5
IC1405
HDMI_RX_1_AVSS_6
NL17SZ08DFT2G AB4 A1.2V
HDMI_RX_1_AVSS_7
V7
HDMI_RX_1_PLL_AVSS
AA4
1 5
HDMI_RX_1_PLL_DVDD1P2
C946 C951
Y7
HDMI_RX_1_PLL_DVSS
0.01uF 1000pF
2 EAN60345904
3 4 R893 22
Place close to BCM
C571
22uF
10V
AUDIO AMP
+1.8V_TU
+5V_NORMAL
C508 C560 C569 IC1500
C507 C564
74LVC1G126
10uF 10uF 10uF 0.1uF
10uF
6.3V 6.3V 16V
6.3V 6.3V
VOLUME OE VCC
VOLUME 1 5
A
2
GND Y
3 4
Audio_5V
IC1501
TPA6011A4PWPRG4
PGND_1 ROUT+
1 24
L1501
BLM18AG151SN1D
ROUT- SE/BTL
C1502 0.47uF 2 23
C1515 C1516
0.1uF 1uF
PVDD_1 HP/LINE
16V 6.3V C1504 10uF 3 22
IC1502
CS4344-CZZR RHPIN VOLUME
4 21
C1518 R1516
SDIN AOUTR 470 C1506 RLINEIN SEDIFF
1 10 1uF 5 20
C1520
4.7uF
1500pF
DEM/SCLK VA C1507 RIN SEMAX
2 9 50V 1uF 6 19
LRCK GND VDD AGND
C1508 0.47uF
3 8 7 18
R1517
MCLK AOUTL C1519 LIN BYPASS
470 1uF
4 7 C1509 8 17
C1521
4.7uF
1500pF
VQ FILT+ LLINEIN FADE
50V C1510 1uF
5 6 9 16
C1501 C1514 LHPIN SHUTDOWN
0.1uF 10uF 10 15
16V
6.3V
PVDD_2 LOUT+
C1503 0.47uF
11 14
C1523 10uF
LOUT- PGND_2
12 13
+3.5V_ST
R1512
1K
C R1511
100
R1513
B
AUDIO_SLEEP Q1500
2SC3052
10K
E
R1433 100
EDID_WP
R1EX24002ASAS0A
A0 VCC
1 8
R1431 10K
A1 WP
2 7 C1407
IC1403
A2 SCL R1429 22 HDMI_SCL 0.1uF
3 6
VSS 5 SDA R1427 22 HDMI_SDA +5V_NORMAL
4
EAN60997601
HDMI_DET
R1403 1K
HDMI_DET
5.6
5.6
5.6
5.6 C
5.6
B
Q1403
5.6 HDMI_HPD_1
KRC104S
5.6
E
5.6
Q1402
KRC104S
A2.5V
L907
HDMI_SCL
A1.2V
HDMI_SDA
D3.3V
L906
L905
D1403
5.5V
D1404
5.5V
5.5V
OPT
D1401
5.5V
OPT
C956
D1400
0.1uF
C955
10uF
HDMI INPUT
+5V_NORMAL
L1500
BLM18AG151SN1D
P1500
12507WR-04L
1
0.1uF
OPT_EMS
C1526
SE/BTL
2
3
R1504
20K
4
+5V_NORMAL
10uF 5
C1512
R1506
47K
HP_DET
OPT
C1513
Audio_5V
0.47uF
SE/BTL
C1505 47uF 6.3V R1507 0
R1505
10K R 1
DETECT 3
B1 SELECT C1511 47uF 6.3V R1510 0
1 6
L 4
GND IC1503 VCC
2 5
GND 5
NLASB3157DFT2G
KJA-PH-0-0177
B0 A
3 4 JK1501
C1525
0.1uF
OPT_EMS
USB SWITCH
S1 S0 PATH
----------------------
0 0 S6
0 1 DPP DEBUG
1 0 DPP UART(CCA)
1 1 BCM UART
IC1400
+3.3V_NORMAL
PI3USB14LE
R1401
VCC EN 1K
16 1
C1401
0.1uF
16V NC S1
15 2
USB_S1
S0 IA3
14 3
USB_S0
R1421 0
BCM_RX R1420 IB3 IA2
0
13 4
BCM_TX
UART0_RXD
DDP2230 UART FOR CCA IB2 IA1
12 5
UART0_TXD
USB_DAT_N
IB1 IA0
DDP2230 USB FOR DBG
11 6
USB_DAT_P
USB_DM1
USB_DM1
USB_DP1 IB0 YA
BCM USB
USB_DP1 10 7
USB_N
YB GND
USB_P 9 8
placed as close to Connector as possible.
IC1401
Capacitors on VBUSA should be
MIC2009YM6-TR +5V_NORMAL
L911
MLB-201209-0120P-N2 +3.3V_NORMAL
VOUT VIN
6 1
C1403
0.1uF
ILIMIT GND
5 2
C973
C974
0.1uF
22uF
FAULT/ ENABLE
16V
16V 4 3
USB_PWRFLT1 USB_PWRON1
C1402
0.1uF
When Low,
When High,
current limit USB 5V out
USB BLOCK
2010.09.01
GP2_BCM_ATSC
LGE Internal Use Only