LG 55LP620H (CHASSIS:LB3AZ / LB3AC) Service Manual ▷ View online
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.
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.
390pF
50V
C533
10K
R521
33pF
50V
50V
C509
1000pF
50V
C505
1000pF
50V
C516
SPK_L-
SPK_R-
12
R512
0 . 1 u F
50V
50V
C520
4.7K
R517
1uF
25V
25V
C529
10.0uH
L506
0 . 1 u F
50V
50V
C519
0 . 1 u F
50V
50V
C521
10.0uH
L504
0 . 1 u F
50V
C537
12
R514
0 . 1 u F
50V
C539
0 . 1 u F
50V
C502
SPK_R+
AUD_LRCK
10uF
10V
10V
C515
AUD_LRCH
0 . 4 7 u F
50V
C535
SPK_R+
100
R506
10uF
10V
C510
10.0uH
L505
+3.3V_Normal
0 . 1 u F
50V
50V
C522
SPK_L-
10uF
35V
C524
0 . 1 u F
16V
16V
C512
0 . 1 u F
16V
16V
C508
10.0uH
L503
+24V_AMP
0 . 1 u F
16V
C514
12
R508
AMP_MUTE
12
R510
390pF
50V
C530
22000pF
50V
50V
C527
10uF
35V
35V
C523
SPK_R-
AUD_SCK
SPK_L+
0 . 1 u F
50V
50V
C540
AMP_RESET
4.7K
R519
1uF
25V
25V
C528
3.3K
R505
0 . 1 u F
50V
C538
AUD_MASTER_CLK
22000pF
50V
C517
10uF
10V
10V
C506
WAFER-ANGLE
P501
1
2
3
4
AMP_SDA
0 . 1 u F
50V
C501
+24V
22000pF
50V
C518
BLM18PG121SN1D
L502
390pF
50V
C531
0 . 1 u F
16V
C513
12
R511
AMP_SCL
390pF
50V
C532
12
R509
SPK_L+
+24V_AMP
22000pF
50V
C526
+3.5V_ST
4.7K
R516
+24V_AMP
1uF
25V
25V
C534
33pF
50V
50V
C507
10K
R502
10K
R501
1000pF
50V
C504
4.7K
R518
12
R513
0 . 4 7 u F
50V
C536
12
R515
100pF
50V
C503
10K
R520
MMBT3904(NXP)
Q501
E
B
C
THERMAL
NTP-7500L
IC501
1
AGND_PLL
2
AVDD_PLL
3
DVDD_PLL
4
LF
5
DGND_PLL
6
GND_1
7
DGND
8
DVDD
9
SDATA
10
WCK
11
BCK
12
SDA
13
SCL
14
/FAULT
15
MONITOR0
16
MONITOR1
17
MONITOR2
18
BST2B
19
PGND2B
20
OUT2B_1
21
OUT2B_2
22
PVDD2_1
23
PVDD2_2
24
PVDD2_3
25
OUT2A_1
26
OUT2A_2
27
PGND2A
28
BST2A
29
VDR2
30
AGND
31
VCC_5
32
VDR1
33
BST1B
34
PGND1B
35
OUT1B_1
36
OUT1B_2
37
PVDD1_1
38
PVDD1_2
39
PVDD1_3
40
OUT1A_1
41
OUT1A_2
42
PGND1A
43
BST1A
44
/RESET
45
AD
46
GND_IO
47
CLK_I
48
VDD_IO
49
[EP]
UBW2012-121F
L501
SPEAKER_R
SPEAKER_L
2 0 1 2 . 1 1 . 0 5
5
EMEA INTERACTIVE
AUDIO AMP
LP63xH-ZA
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.
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.
BLM18PG121SN1D
L601
10K
1%
R622
0 . 1 u F
16V
16V
C608
+3.5V_ST
12507WR-08L
P600
1
2
3
4
5
6
7
8
9
BLM18PG121SN1D
L600
10K
1%
R620
1.8K
R629
BLM18PG121SN1D
L602
0 . 1 u F
16V
16V
C609
1000pF
50V
C603
KEY1
0 . 1 u F
16V
C602
LED_R/BUZZ
KEY2
+3.5V_ST
2SC3052
Q604
E
B
C
+5V_ST
10K
R618
2SC3052
Q600
E
B
C
5.48VTO5.76V
ZD600
10K
R616
10K
R607
NEC_IR
IR_OUT_HDMI1
10K
R609
30K
R601
30K
R602
30K
R600
IR_OUT_HDMI2
2SC3052
Q601
E
B
C
+5V_ST
2SC3052
Q608
E
B
C
10K
R610
2SC3052
Q602
E
B
C
IR_OUT_SIDE_HDMI
IR_OUT_CTRL
10K
R611
100pF
50V
C606
2SC3052
Q603
E
B
C
10K
R619
10K
R617
+3.5V_ST
2SC3052
Q605
E
B
C
+5V_ST
2SC3052
Q606
E
B
C
47K
R624
IR_OUT_RS232C
47K
R623
+5V_ST
100
R614
1K
R613
1K
R612
+3.3V_Normal
18pF
50V
50V
OPT
C607
C607
SENSOR_SCL
SENSOR_SDA
12507WR-10L
P601
IR_10PIN
1
2
3
4
5
6
7
8
9
10
11
18pF
50V
50V
OPT
C612
100
R630
IR & LED
CONTROL
2 0 1 2 . 1 1 . 0 5
6
EMEA INTERACTIVE
IR/CONTROL
LP63xH-ZA
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.
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.
RXA1+
RXA1-
RXA0-
3.3K
OPT
R705
RXB3-
RXA3+
RXB0-
RXACK+
RXA0+
FF10001-30
P705
HD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
3.3K
OPT
R712
RXACK-
PANEL_VCC
RXB1-
RXA0+
RXACK+
0 . 1 u F
16V
16V
C710
FHD
+3.3V_Normal
RXA2-
RXA1-
RXB1+
RXB0+
120-ohm
FHD
L702
0 . 1 u F
16V
16V
HD
C703
RXA4+
10K
OPT
R711
RXA4-
RXB2-
RXA2-
RXB3+
F I - R E 5 1 S - H F - J - R 1 5 0 0
P703
FHD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
+3.3V_Normal
RXACK-
RXBCK-
10K
OPT
R710
RXA3-
RXA3-
RXB4+
120-ohm
HD
L701
RXBCK+
RXA3+
RXA2+
RXA2+
RXA1+
PANEL_VCC
RXA0-
RXB4-
RXB2+
0
NON_AUO/NON_HD
R707
0
NON_AUO/NON_HD
R706
0
NON_AUO/NON_HD
R708
[ 5 1 P i n L V D S C o n n e c t o r ]
( F o r F H D 6 0 / 1 2 0 H z )
[ 3 0 P i n L V D S C o n n e c t o r ]
(For HD 60Hz_Normal)
LVDS_SEL
LVDS_SEL
2 0 1 2 . 1 1 . 0 5
7
EMEA INTERACTIVE
LVDS WAFER
LP63xH-ZA
RXA4+
RXA3-
RXB4-
RXA3+
RXACK-
RXA4+
RXB4+
P o l - c h a n g e
RXB2-
RXB4-
RXB3-
RXB4-
RXA1-
RXB2-
RXA0+
RXB0-
RXA0+
RXB2+
RXB4+
RXA3-
RXB0-
RXA2-
RXB2+
RXA4-
RXA2+
RXA0-
RXB3-
RXB4+
RXBCK+
RXBCK+
C h a n g e i n S 7 L R
RXB3+
RXB1-
RXB3+
RXACK+
RXB1-
RXA1+
RXB1+
RXB0-
RXB0+
RXBCK+
RXB1+
RXACK+
MIRROR
RXACK-
RXA0-
RXB2+
RXB3-
RXA3-
RXA3+
RXA1+
RXA2+
RXA0+
RXB1-
RXB2-
RXB3+
RXA1-
FOR FHD REVERSE(10bit)
RXBCK-
RXA1+
RXACK+
RXBCK-
RXB1+
RXA2+
RXA1-
RXA4-
RXB0+
RXACK-
RXA4+
RXB0+
RXA3+
RXA2-
RXA4-
RXA2-
RXBCK-
RXA0-
RXA2-
RXA4-
RXB1+
RXBCK+
RXB4-
RXA3-
RXA0+
RXB2-
RXA0-
RXBCK+
RXACK+
RXA3-
RXBCK+
RXA2+
RXB0+
RXA3+
MIRROR
RXB4-
RXB0+
RXB1+
RXB0-
RXA4+
RXB0+
RXB4-
RXA1-
RXB2+
RXB3+
RXA2-
C h a n g e i n S 7 L R
RXBCK-
RXA1+
RXA1-
RXA1+
RXB2+
RXA2+
RXA2+
RXB3+
RXACK-
RXBCK-
RXB2-
RXA0+
RXA1-
RXA4-
RXB1-
P o l - c h a n g e
RXA2-
RXB0-
RXA0-
RXB1+
RXA4-
RXACK-
RXB4+
RXB0-
RXA4+
RXA4-
RXB1-
RXB0+
RXB4-
RXB2-
RXB4+
RXA0-
RXACK-
RXACK-
RXA3+
RXB3-
RXB3-
RXA2-
RXA4+
RXACK+
RXB1-
RXA1+
RXA0-
S h i f t
RXB3-
RXBCK-
RXB4+
RXACK+
RXBCK-
RXB2+
RXBCK+
RXA3-
RXA1+
RXA2+
RXB4+
RXB1-
RXA3+
RXB0-
RXB3-
RXB1+
RXA3+
RXA3-
FOR FHD REVERSE(8bit)
RXB3+
RXB2-
RXACK+
RXA0+
RXB3+
RXB2+
RXA1-
RXA0+
RXA4+
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.
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.
2.7K
R888
DDC_SCL_2
5V_HDMI_1
2.7K
R889
+5V_Normal
2.7K
R884
2.7K
R885
DDC_SCL_4
DDC_SDA_1
+5V_Normal
DDC_SDA_2
DDC_SCL_1
5V_HDMI_2
+5V_Normal
HDMI_CEC
2.7K
R891
5V_HDMI_4
DDC_SDA_4
CEC_REMOTE_S7
100
R855
+3.5V_ST
10K
R850
D851
CEC_REMOTE_NEC
0 . 1 u F
16V
16V
C804
68K
R816
68K
R812
CEC_ON/OFF
BSS83
Q805
S
B
D
G
MMBD6100
D822
D822
A2
C
A1
MMBD6100
D824
D824
A2
C
A1
MMBD6100
D821
D821
A2
C
A1
RCLAMP0524PA
ESD_HDMI_SEMTECH
D804
1
8
2
7
3
6
4
5
9
10
RCLAMP0524PA
ESD_HDMI_SEMTECH
D805
1
8
2
7
3
6
4
5
9
10
5V_HDMI_1
D0+_HDMI1
D2+_HDMI1
100
R822
MMBT3904(NXP)
Q801
E
B
C
DDC_SCL_1
5V_HDMI_1
100
R818
CK+_HDMI1
ESD_HDMI
VA805
10K
R811
5V_HDMI_1
DDC_SDA_1
VA801
ESD_HDMI_VARISTOR
CK-_HDMI1
ESD_HDMI
VA806
1.8K
R802
D0-_HDMI1
5V_DET_HDMI_1
ESD_HDMI
VA807
D1-_HDMI1
3.3K
R805
ESD_HDMI_VARISTOR
VA804
D1+_HDMI1
HPD1
1K
R801
EAG59023302
JK802
HDMI_1
14
13
5
D1_GND
20
SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
D2-_HDMI1
10K
R808
HDMI_CEC
IR_OUT_HDMI1
ESD_HDMI
VA810
HPD2
D0-_HDMI2
1.8K
R804
ESD_HDMI
VA811
5V_HDMI_2
5V_DET_HDMI_2
ESD_HDMI_VARISTOR
VA808
10K
R810
DDC_SCL_2
DDC_SDA_2
RCLAMP0524PA
ESD_HDMI_SEMTECH
D807
1
8
2
7
3
6
4
5
9
10
CK-_HDMI2
MMBT3904(NXP)
Q802
E
B
C
100
R824
EAG59023302
JK801
HDMI_2
14
13
5
D1_GND
20
SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
5V_HDMI_2
D1+_HDMI2
CK+_HDMI2
10K
R809
D2-_HDMI2
D2+_HDMI2
RCLAMP0524PA
ESD_HDMI_SEMTECH
D806
1
8
2
7
3
6
4
5
9
10
1K
R803
ESD_HDMI
VA809
D0+_HDMI2
HDMI_CEC
100
R825
VA802
ESD_HDMI_VARISTOR
D1-_HDMI2
5V_HDMI_2
3.3K
R806
IR_OUT_HDMI2
IR_OUT_SIDE_HDMI
D0-_HDMI4
DDC_SCL_4
ESD_HDMI_VARISTOR
VA803
MMBT3904(NXP)
Q804
E
B
C
100
R829
10K
R823
ESD_HDMI_VARISTOR
VA812
D0+_HDMI4
HDMI_CEC
1.8K
R815
5V_HDMI_4
D2+_HDMI4
5V_HDMI_4
3.3K
R817
CK-_HDMI4
100
R826
5V_DET_HDMI_4
D2-_HDMI4
D1-_HDMI4
5V_HDMI_4
D1+_HDMI4
DDC_SDA_4
EAG62611204
HDMI_SIDE
JK803
14
13
5
D1_GND
20
BODY_SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
HPD4
RCLAMP0524PA
ESD_HDMI_SEMTECH
D809
1
8
2
7
3
6
4
5
9
10
ESD_HDMI
VA813
1K
R814
CK+_HDMI4
ESD_HDMI
VA815
ESD_HDMI
VA814
10K
R821
2.7K
R887
HDMI_ARC
0
HDMI1_ARC
R840
0
NON_HDMI1_ARC
R841
1uF
10V
10V
VA801-*1
ESD_HDMI_CAP
1uF
10V
10V
VA804-*1
ESD_HDMI_CAP
1uF
10V
10V
VA808-*1
ESD_HDMI_CAP
1uF
10V
10V
VA802-*1
ESD_HDMI_CAP
1uF
10V
10V
VA812-*1
ESD_HDMI_CAP
1uF
10V
10V
VA803-*1
ESD_HDMI_CAP
RCLAMP0524PA
ESD_HDMI_SEMTECH
D808
1
8
2
7
3
6
4
5
9
10
IP4283CZ10-TBA
ESD_HDMI_NXP
D804-*1
3
GND_1
2
TMDS_CH1+
4
TMDS_CH2-
1
TMDS_CH1-
5
TMDS_CH2+
6
NC_1
7
NC_2
8
GND_2
9
NC_3
10
NC_4
IP4283CZ10-TBA
ESD_HDMI_NXP
D805-*1
3
GND_1
2
TMDS_CH1+
4
TMDS_CH2-
1
TMDS_CH1-
5
TMDS_CH2+
6
NC_1
7
NC_2
8
GND_2
9
NC_3
10
NC_4
IP4283CZ10-TBA
ESD_HDMI_NXP
D807-*1
3
GND_1
2
TMDS_CH1+
4
TMDS_CH2-
1
TMDS_CH1-
5
TMDS_CH2+
6
NC_1
7
NC_2
8
GND_2
9
NC_3
10
NC_4
IP4283CZ10-TBA
ESD_HDMI_NXP
D806-*1
3
GND_1
2
TMDS_CH1+
4
TMDS_CH2-
1
TMDS_CH1-
5
TMDS_CH2+
6
NC_1
7
NC_2
8
GND_2
9
NC_3
10
NC_4
IP4283CZ10-TBA
ESD_HDMI_NXP
D809-*1
3
GND_1
2
TMDS_CH1+
4
TMDS_CH2-
1
TMDS_CH1-
5
TMDS_CH2+
6
NC_1
7
NC_2
8
GND_2
9
NC_3
10
NC_4
IP4283CZ10-TBA
ESD_HDMI_NXP
D808-*1
3
GND_1
2
TMDS_CH1+
4
TMDS_CH2-
1
TMDS_CH1-
5
TMDS_CH2+
6
NC_1
7
NC_2
8
GND_2
9
NC_3
10
NC_4
HDMI_1
HDMI_2
For CEC
SIDE_HDMI
2 0 1 2 . 1 1 . 0 5
8
EMEA INTERACTIVE
LP63xH-ZA
HDMI
HDMI_1
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