LG 37LP360H (CHASSIS:LD3AC) 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.
+3.5V_ST
0 . 1 u F
C451
DELETE
100K
R404
PD_+24V
10K
R430
+12V
NR8040T3R6N
3.6uH
L415
AO3407A
Q409
G
D
S
56K
1%
1%
R441
22uF
10V
C456
+3.5V_ST
560pF
50V
50V
C467
1.5K
1%
1%
R403
PD_+24V
THERMAL
TPS54319TRE
IC403
1
VIN_1
3
GND_1
7
COMP
9
SS/TR
10
PH_1
11
PH_2
12
PH_3
13
BOOT
14
PWRGD
15
EN
16
VIN_3
5
AGND
8
RT/CLK
6
VSENSE
4
GND_2
2
VIN_2
17
EP[GND]
0 . 1 u F
16V
16V
C440
+3.3V_Normal
L413
SS
10K
R443
0 . 1 u F
C474
22uF
10V
C453
10uF
10V
10V
C403
5.6K
R440
22uF
10V
C472
+1.5V_DDR
POWER_DET
47K
R429
DELETE
L412
SS
1/16W 330K 5%
R432
0 . 1 u F
16V
16V
C438
0 . 1 u F
16V
16V
C411
0 . 1 u F
16V
16V
DELETE
C445
0 . 1 u F
16V
C425
4 . 7 u F
16V
16V
C423
FET_AOS
PANEL_CTL
THERMAL
AP7173-SPG-13 HF(DIODES)
IC407
3
VCC
2
PG
4
EN
1
IN
5
GND
6
SS
7
FB
8
OUT
9
[ E P ]
+3.5V_ST
+1.10V_VDDC
10uF
25V
C443
100
R480
PD_+24V
+12V
10uF
16V
16V
DELETE
C442
+3.3V_Normal
0 . 1 u F
16V
16V
C432
10K
R463
RESET_IC_SOC_RESET
0 . 1 u F
16V
16V
C444
0 . 1 u F
16V
16V
C435
0 . 1 u F
16V
C447
100K
R488
0 . 1 u F
16V
C476
0 . 1 u F
16V
16V
C431
0 . 1 u F
16V
16V
C455
10uF
10V
10V
C430
+3.3V_Normal
33K
R439
1.21K
1%
R447
PD_+12V
0 . 1 u F
16V
16V
C412
PD_+24V
22K
R435
DELETE
PANEL_VCC
100pF
50V
C439
0 . 1 u F
16V
16V
C475
100
R402
3.5V_SOC_RESET
10K
R433
+2.5V_Normal
+3.3V_Normal
10K
R428
22K
R438
BLM18PG121SN1D
L420
+3.5V_ST
22K
R431
DELETE
10uF
10V
C461
+3.5V_ST
BLM18PG121SN1D
L403
0 . 1 u F
16V
C441
+24V
10K
R434
POWER_ON/OFF_1
15K
R436
27K
1%
1%
R442
4.3K
1%
R457
4.7K
1%
1%
R456
T J 3 9 4 0 S - 2 . 5 V - 3 L
IC402
1
GND
2
VOUT
3
VIN
0
R414
10K
R489
10K
R490
DELETE
RL_ON
2.2K
R405
DELETE
2.2K
R407
DELETE
2.7K
1%
PD_+12V
R448
0
5%
5%
PD_+3.5V
R450
1
R473
3K
3K_PANEL_DISCHARGE
R407-*1
3K
R405-*1
3K_PANEL_DISCHARGE
0 . 0 1 u F
50V
C436
0 . 0 1 u F
0 . 0 1 5 u F
50V
50V
C409
0 . 0 1 5 u F
3300pF
50V
C448
3300pF
C488
8.2K
1%
1%
R482
PD_+24V
MMBT3904(NXP)
Q407
E
B
C
MMBT3904(NXP)
Q406
DELETE
E
B
C
MMBT3904(NXP)
Q400
E
B
C
APX803D29
IC408
POWER_DET_DIODES
1
GND
3
VCC
2
RESET
NCP803SN293
IC408-*1
POWER_DET_ON_SEMI
1
GND
3
VCC
2
RESET
NCP803SN293
PD_+24V_PWR_DET_ON_SEMI
IC409-*1
1
GND
3
VCC
2
RESET
APX803D29
IC409
PD_+24V_PWR_DET_DIODES
1
GND
3
VCC
2
RESET
100
R445
FET_AOS
AO3407A
Q403
FET_AOS
G
D
S
5.1K
R405-*2
5.1K_PANEL_DISCHARGE
5.1K
R407-*2
5.1K_PANEL_DISCHARGE
22uF
10V
10V
C437
MMBT3904(NXP)
Q405
E
B
C
+3.5V_ST
MMBT3904(NXP)
Q401
E
B
C
+3.5V_ST
+3.5V_ST
+3.3V_Normal
10K
R401
+3.5V_ST
+24V
MMBT3906(NXP)
Q402
1
2
3
PWM_DIM
10K
OPT
R461
0 . 1 u F
50V
C418
4.7K
R406
10K
R462
CIC21J501NE
L404
SS
100
PWM2_2CH_POWER
R408
0 . 1 u F
16V
C404
CIC21J501NE
L408
SS
0 . 1 u F
16V
C406
PWM1
INV_CTL
10K
R426
+12V
10K
R409
10K
R421
MLB-201209-0120P-N2
L402
SMAW200-H18S1
P401
14
12V
9
24V
4
PDIM#1
18
GND
13
12V
8
GND
3
3.5V
17
GND
12
GND
7
GND
2
DRV ON
16
N.C
11
GND
6
PDIM#2
1
PWR ON
15
12V
10
24V
5
3.5V
19
.
MLB-201209-0120P-N2
L407
1K
R419
POWER_DET_RESET
300
R402-*1
RESET_IC_SOC_RESET
JP_GND1
JP_GND2
JP_GND4
JP_GND3
2.2K
FET_2.5V
R445-*1
2 . 2 u F
10V
10V
FET_2.5V
C423-*1
DMP2130L
FET_2.5V_DIODE
Q403-*1
G
D
S
AO3435
FET_2.5V_AOS
Q403-*2
G
D
S
100K
R410
10uF
CAP_10uF_X5R
10V
85C
C417
CIC21J501NE
L401
SS
27K
1%
R453
0
R491
3.6uH
L406
+3.3V_Normal
330pF
50V
C424
22uF
16V
16V
C420
+5V_Normal
4.7K
DELETE
R417
2K
R411
THERMAL
TPS65281RGV
IC401
3
ROSC
2
COMP
4
RLIM
1
SS
EN_SW
5
FAULT
6
AGND
7
SW_OUT
8
SW_IN
9
FB
10
LX
11
BST
12
PGND
13
VIN
14
V7V
15
EN
16
17
[ E P ]
100pF
50V
DELETE
C426
4 . 7 u F 10V
C419
USB1_CTL
20K
R413
+5V_Normal
11K 1%
R454
10uF 10V
CAP_10uF_X7R
C417-*1
22uF
16V
16V
OPT
C421
USB1_OCD
10uF
16V
16V
C405
33K
1%
R452
0 . 1 u F
16V
16V
DELETE
C422
3300pF
50V
50V
C410
10K
R412
+12V
0 . 0 4 7 u F
25V
25V
C413
+5V_USB
5V OPT
D401
5V
OPT
D403
5V
OPT
OPT
D402
5V
OPT
OPT
D405
5V
OPT
OPT
D404
500-ohm
L401-*1
SAMWHA
500-ohm
SAMWHA
L404-*1
500-ohm
SAMWHA
L408-*1
500-ohm
SAMWHA
L412-*1
500-ohm
SAMWHA
L413-*1
POWER
4
4A
R2
New item
Max 1000mA
V o u t = 0 . 8 * ( 1 + R 1 / R 2 ) = 1 . 5 3 1 9
+1.5V_DDR
$ 0 . 1 6 5
Vd=550mV
1 2 V - - > 3 . 5 8 V - - > 3 . 8 2 V ( 3 . 6 8 V )
+3.3V_Normal
FROM LIPS & POWER B/D
R1
780 mA
PANEL_POWER
+ 3 . 5 V _ S T - > 3 . 3 7 5 V
R1
1.5A
S 7 L R c o r e 1 . 2 V v o l t
R2
300 mA
Vout=0.827*(1+R1/R2)=1.225V
2 4 V - - > 3 . 7 8 V - - > 3 . 9 2 V ( 3 . 7 9 V )
S T _ 3 . 5 V - - > 3 . 3 7 5 V - - > 3 . 4 6 V
+2.5V/+1.8V
Power_DET
2 0 1 2 . 1 1 . 1 2
2013 S7LR2
+5V_Normal
&
+5V_USB
&
+5V_USB
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
CHANGE TO
16V/X5R
R1
CHANGE TO
10UF/10V/X5R
R2
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.
+24V_AMP
AMP_SCL
+24V
12
R511
+24V_AMP
390pF
50V
C530
10K
R520
SPK_L+
10uF
35V
C524
10.0uH
L504
0 . 1 u F
50V
50V
C521
100
R503
4.7K
R517
AMP_SDA
1000pF
50V
C516
100pF
50V
C503
0 . 1 u F
50V
50V
C520
0 . 1 u F
50V
50V
C522
0 . 1 u F
50V
C502
1000pF
50V
C504
10K
R502
12
R508
100
R506
AMP_RESET
SPK_R-
0 . 4 7 u F
50V
C535
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]
12
R509
0 . 1 u F
50V
C539
0 . 1 u F
16V
C514
POWER_DET
390pF
50V
C532
10K
R521
SPK_L+
390pF
50V
C533
10.0uH
L506
0 . 1 u F
50V
C501
AUD_SCK
0 . 1 u F
50V
C538
12
R513
+3.3V_Normal
12
R515
4.7K
R518
10uF
10V
DELETE
C511
0 . 1 u F
50V
C537
33pF
50V
50V
C509
33pF
50V
50V
C507
0 . 1 u F
50V
50V
C519
4.7K
R516
390pF
50V
C531
12
R510
0
DELETE
R522
+3.5V_ST
1uF
25V
25V
C534
4.7K
R519
0 . 4 7 u F
50V
C536
SPK_R-
22000pF
50V
C517
3.3K
R505
WAFER-ANGLE
P501
1
2
3
4
SPK_R+
0 . 1 u F
16V
C513
0 . 1 u F
16V
C512
22000pF
50V
C518
10uF
10V
C510
10K
R501
10.0uH
L503
10uF
10V
C506
100
R504
10.0uH
L505
SPK_L-
22000pF
50V
50V
C527
MMBT3904(NXP)
Q501
E
B
C
12
R512
BLM18PG121SN1D
L502
AUD_LRCK
1uF
25V
25V
C529
22000pF
50V
C526
MLB-201209-0120P-N2
L501
10uF
10V
10V
C515
AUD_MASTER_CLK
0 . 1 u F
50V
50V
C540
10uF
35V
35V
C523
12
R514
0 . 1 u F
16V
C508
+24V_AMP
AMP_MUTE
SPK_L-
AUD_LRCH
SPK_R+
1000pF
50V
C505
1uF
25V
25V
C528
SPEAKER_L
SPEAKER_R
POWER
2 0 1 2 . 1 1 . 1 2
2013 S7LR2
5
1000pF
50V
C603
+3.5V_ST
LED_R
0 . 1 u F
16V
C602
10K
1%
R603
100pF
50V
C604
0 . 1 u F
C609
CONTROL_FILTER
+3.5V_ST
0 . 1 u F
C608
CONTROL_FILTER
+3.5V_ST
22
R604
10K
1%
R602
KEY1
47K
R607
IR
KEY2
5.6V
D603
BLM18PG121SN1D
L601
CONTROL_FILTER
BLM18PG121SN1D
L602
CONTROL_FILTER
BLM18PG121SN1D
L600
22
IR_OUT
R605
+3.5V_ST
+3.5V_ST
47K
IR_OUT
R612
IR_OUT
10K
IR_OUT
R609
0
R611
OPT
2SC3052
IR_OUT
Q600
E
B
C
2SC3052
IR_OUT
Q601
E
B
C
12507WR-08L
P600
1
2
3
4
5
6
7
8
9
10K
IR_OUT
R606
47K
IR_OUT
R608
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.
0
CONTROL_NO_FILTER
R614
0
CONTROL_NO_FILTER
R615
1.8K
R610
6
IR/CONTROL
IR & LED
CONTROL
IR OUT
2013 S7LR2
2 0 1 2 . 1 1 . 1 2
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.
RXB4+
10K
OPT
R711
120
HD_SS
L701
RXA4+
RXACK-
120
FHD_SS
L702
RXA1-
RXACK+
RXA0-
RXBCK+
RXB2+
10K
OPT
R710
R710
RXB1-
RXA0-
RXB1+
RXA3-
RXB0+
RXB4-
RXA4-
RXA2+
RXA2+
RXB0-
RXA1+
0 . 1 u F
16V
16V
FHD
C710
RXA2-
RXA1-
3.3K
OPT
R712
RXA0+
RXA2-
RXB2-
F I - R E 5 1 S - H F - J - R 1 5 0 0
FHD
P703
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
3.3K
OPT
R705
R705
RXA3+
RXA1+
RXACK+
RXB3+
+3.3V_Normal
FF10001-30
HD
P705
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
PANEL_VCC
RXB3-
PANEL_VCC
RXBCK-
0 . 1 u F
16V
16V
HD
C703
RXACK-
RXA0+
RXA3-
RXA3+
+3.3V_Normal
120OHM
L701-*1
HD_SUNLORD
120OHM
FHD_SUNLORD
L702-*1
RXA0-
RXA2+
RXB1-
RXB2-
RXB1-
RXA3+
RXA4-
RXACK-
RXA0-
RXA4-
RXB2-
RXB0+
RXA2-
RXA4+
RXB4-
RXA3+
RXACK+
RXA1+
RXA1+
P o l - c h a n g e
RXA1-
RXB2-
RXB4-
RXB0-
RXBCK+
RXA4-
RXB4-
RXB3-
RXA3-
RXA0+
RXA4-
RXA0-
RXA0-
RXA1+
RXBCK-
RXB4-
[ 3 0 P i n L V D S C o n n e c t o r ]
( F o r H D 6 0 H z _ N o r m a l )
RXA1+
RXB2-
RXA0+
RXA0+
RXB1+
RXB3-
RXA1-
RXB2-
RXA2+
RXACK-
RXA1-
RXB3+
RXA3+
RXA3-
[ 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 H z )
RXB0-
RXBCK+
RXB1+
RXA0+
RXA2+
RXA3-
RXB3+
RXA1-
RXBCK+
RXACK-
RXB0-
RXACK+
FOR FHD REVERSE(8bit)
RXA4-
RXB4+
RXA3-
RXBCK-
RXB4+
RXA2-
RXA4+
RXA4-
RXBCK+
LVDS_SEL
RXA2+
RXB4+
RXBCK-
RXACK-
RXB1-
RXB2+
RXBCK+
RXB3+
RXB4-
S h i f t
RXB0+
RXB3-
RXA3-
P o l - c h a n g e
RXB2+
RXACK+
MIRROR
RXACK+
RXB1+
RXA1-
RXA1+
RXB3+
RXA0-
RXBCK-
RXB0+
RXB2+
RXB1+
RXACK+
RXB1+
RXBCK-
RXB0-
RXA3-
RXB3+
RXA2+
RXB4+
RXA0-
RXA0+
LVDS
RXA1-
RXBCK-
RXA3+
RXA3+
RXACK+
RXB0-
RXB0-
RXBCK+
RXA3+
RXA3-
RXA1+
RXB0+
RXB2+
RXB0+
RXA2+
RXB3-
RXBCK-
RXA1-
RXA2-
RXA3+
RXA0+
RXA0-
RXB0+
RXACK-
RXB1-
MIRROR
RXA1+
RXB4+
RXB0-
RXACK-
RXB2+
RXB3+
RXB1+
RXB4+
RXB1-
RXB3-
RXA4-
RXA2-
LVDS_SEL
RXB3+
RXA2-
RXA2-
RXB0+
C h a n g e i n S 7 L R
RXA2+
C h a n g e i n S 7 L R
RXB4-
RXA4+
RXB2+
RXB2-
RXB2-
RXB1-
RXA0+
RXBCK+
RXA4+
RXA4+
RXB1-
RXA4+
RXACK-
RXB3-
RXB4-
RXA4+
RXA2-
RXB3-
RXACK+
RXB2+
FOR FHD REVERSE(10bit)
RXB4+
RXB1+
LVDS
2013 S7LR2
2 0 1 2 . 1 1 . 1 2
7
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