LG 42LP860H (CHASSIS:LD33B) Service Manual ▷ View online
THERMAL
THERMAL
THERMAL
U
S
B
D
O
W
N
S
T
R
E
A
M
U
S
B
D
O
W
N
S
T
R
E
A
M
THERMAL
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.
C4333
22uF
10V
22uF
10V
R4344
10K
C4324
10uF
16V
16V
+5V_USB
R4312
10K
R4314
27K
1/10W
C4328
0.1uF
0.1uF
C4304
0.1uF
0.1uF
16V
IC4303
TPS2554
3
IN_2
2
IN_1
4
ILIM_SEL
1
GND
5
EN
6
ILIM1
7
ILIM0
8
OUT_1
9
OUT_2
10
FAULT
11
[EP]
USB_DM2
+5V_USB
C4303
0.1uF
0.1uF
16V
C4301
10uF
10V
C4340
10uF
10V
WOL/WIFI_POWER_ON
+3.5V_ST_WIFI
+3.5V_ST
C4329
3300pF
50V
R4301
22
+5V_USB
R4300
27K
1/10W
/USB_OCD2
R4328
100K
R4330
120K
120K
1%
C4334
22uF
10V
10V
/USB_OCD1
L4308
2uH
C4332
22pF
50V
22pF
50V
USB_CTL1
D4303
RCLAMP0502BA
USB_DIODE
C4327
1uF
10V
10V
IC4305
TPS54425PWPR
3
VREG5
2
VFB
4
SS
1
VO
6
PG
5
GND
7
EN
8
PGND1
9
PGND2
10
SW1
11
SW2
12
VBST
13
VIN1
14
VIN2
15
[EP]PGND
USB_DP2
+3.3V_NORMAL
D4304
RCLAMP0502BA
USB_DIODE
USB_DP1
R4327
10K
OPT
OPT
+3.3V_NORMAL
WIFI_DM
R4331
22K
22K
1%
USB_CTL2
WIFI_DP
C4323
10uF
10V
POWER_ON/OFF2_4
IC4306
TPS2554
3
IN_2
2
IN_1
4
ILIM_SEL
1
GND
5
EN
6
ILIM1
7
ILIM0
8
OUT_1
9
OUT_2
10
FAULT
11
[EP]
USB_DM1
L4301
BLM18PG121SN1D
R4313
27K
1/10W
OPT
R4311
10K
OPT
OPT
C4326
0.1uF
50V
0.1uF
50V
+5V_USB
L4305
BLM18PG121SN1D
R4323
10K
R4341
27K
1/10W
OPT
R4329
10K
C4302
10uF
10V
P4301
SMAW200-H12S2
1
2
3
4
5
6
7
8
9
10
11
12
13
JK4304
3AU04S-305-ZC-(LG)
1
2
3
4
5
JK4303
3AU04S-305-ZC-(LG)
1
2
3
4
5
Q4301
PMV48XP
G
D
S
C4311
0.1uF
16V
0.1uF
16V
OPT
R4304
10K
10K
R4303
1.8K
Q4302
MMBT3904(NXP)
MMBT3904(NXP)
E
B
C
C4312
4.7uF
10V
4.7uF
10V
OPT
C4310
4.7uF
10V
4.7uF
10V
+3.5V_ST
ZD4300
5V
OPT
R4302
10K
+3.5V_ST_WIFI
WIFI_EN
P_12V
C4337
3.3uF
50V
3.3uF
50V
L4303
22UH
22UH
R4333
22
22
C4339
22uF
25V
22uF
25V
C4335
0.1uF
50V
D4305
MBRA340T3G
R4336
200K
200K
1/8W
1%
1%
R4332
100K
100K
C4338
0.1uF
50V
0.1uF
50V
P_12V
R4335
150K
150K
C4341
0.1uF
50V
R4337
20K
1/16W
1%
1/16W
1%
R4338
270K
270K
1/16W
1%
1%
C4336
150pF
50V
150pF
50V
R4334
18K
IC4307
MP4460DQ-LF-Z
3
EN
2
SW_2
4
COMP
1
SW_1
5
FB
6
GND
7
FREQ
8
VIN_1
9
VIN_2
10
BST
11
EP_GND
+24V
R4339
10K
10K
1/16W
1%
1%
L4304
CB3216PA501E
JP8703
43
USB/WIFI
2012.12.10
xxLP860H-ZA
USB1
(HUB)
Vout=(0.763+0.0017*Vout.set)*(1+R1/R2)=4.98V
For EMI
R2
To SOC
WIFI(Netcast 4.0 WIFI Module)
4A
MAX 0.4A
USB2
(Support WOWL)
USB POWER(+24V->P_12V->+5V_USB)
R1
To SOC
close to pin
$0.21
Switching noise reducing [MPS recommend]
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.
SC_L_IN
C4602
4700pF
4700pF
C4604
0.1uF
0.1uF
SC_G
C4603
4700pF
4700pF
SC_DET
DTV/MNT_L_OUT
SC_ID
DTV/MNT_V_OUT
SC_B
SC_R_IN
+3.3V_NORMAL
SC_CVBS_IN
C4600
1000pF
50V
50V
C4601
1000pF
50V
L4600
BLM18PG121SN1D
L4601
BLM18PG121SN1D
R4600
75
75
DTV/MNT_R_OUT
SC_FB
SC_R
R4601
10K
D4611
5.6V
ESD_SC
D4607
5.6V
OPT
D4606
5.6V
OPT
D4605
5.6V
5.6V
OPT
D4608
5.6V
OPT
D4601
5.6V
5.6V
ESD_SC
D4600
20V
OPT
D4609
5.5V
ESD_SC
D4610
5.5V
ESD_SC
D4603
5.5V
OPT
D4602
5.5V
5.5V
OPT
D4604
5.5V
OPT
JK4600
PSC008-01
1
AUDIO_R_OUT
2
AUDIO_R_IN
3
AUDIO_L_OUT
4
AUDIO_GND
5
B_GND
6
AUDIO_L_IN
7
B_OUT
8
ID
9
G_GND
10
D2B_IN
11
G_OUT
12
D2B_OUT
13
R_GND
14
RGB_GND
15
R_OUT
16
RGB_IO
17
SYNC_GND1
18
SYNC_GND2
19
SYNC_OUT
20
SYNC_IN
21
COM_GND
22
AV_DET
SCART_Lout
C4611
0.1uF
50V
0.1uF
50V
R4613
2.2K
C4610
33pF
33pF
C4614
1uF
25V
DTV/MNT_L_OUT
C4612
33pF
L4602
R4611
33K
33K
R4610
33K
33K
R4608
2.2K
SCART_AMP_L_FB
+12V
SCART_Rout
SCART_AMP_R_FB
C4608
1uF
25V
DTV/MNT_R_OUT
IC4600
AZ4580MTR-E1
3
IN1+
2
IN1-
4
VEE
1
OUT1
5
IN2+
6
IN2-
7
OUT2
8
VCC
+3.5V_ST
Q4602
MMBT3904(NXP)
E
B
C
R4625
4.7K
OPT
DTV/MNT_L_OUT
DTV/MNT_R_OUT
Q4603
MMBT3904(NXP)
E
B
C
SCART_MUTE
IC4601
MM1756DURE
3
BIAS
2
GND
4
OUT
1
IN
6
VCC
5
PS
+3.3V_NORMAL
C4619
0.1uF
4.7uF
C4620
C4618
0.1uF
0.1uF
R4623
10K
46
SCART GENDER
2012.12.10
Full Scart
CLOSE TO JUNCTION
AUD_OUT >> EU/CHINA_HOTEL_OPT
SCART AMP
[SCART AUDIO MUTE]
xxLP860H-ZA
THERMAL
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.
SPK_L-
C5426
22000pF
50V
22000pF
50V
R5417
5.1K
IC5400
NTP-7500L
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]
C5432
390pF
50V
C5444
0.1uF
50V
0.1uF
50V
C5443
1uF
25V
OPT
25V
OPT
C5414
10uF
10V
10uF
10V
SPK_R+
C5434
0.47uF
50V
Q5401
AO3407A
G
D
S
0.1uF
C5420
50V
R5425
10K
10K
D5403
100V
1N4148W
OPT
D5401
100V
1N4148W
OPT
C5415
1000pF
50V
L5405
NRS6045T100MMGK
10.0uH
AUD_MASTER_CLK
C5409
10uF
10V
Q5402
MMBT3904(NXP)
MMBT3904(NXP)
E
B
C
SPK_R+
C5423
10uF
35V
R5402
100
0.1uF
C5438
50V
0.1uF
C5418
50V
+24V
C5429
390pF
50V
C5411
0.1uF
16V
R5409
12
0.1uF
C5437
50V
+24V_AMP
C5403
1000pF
50V
R5408
12
R5410
12
R5413
12
C5440
0.01uF
50V
C5428
1uF
25V
25V
R5400
10K
C5405
10uF
10V
MAIN_AMP_RESET
0.1uF
C5439
50V
R5407
12
+24V_AMP
R5414
12
R5412
12
L5404
NRS6045T100MMGK
10.0uH
L5403
NRS6045T100MMGK
10.0uH
0.1uF
C5413
16V
P5400
WAFER-ANGLE
1
2
3
4
C5427
1uF
25V
1uF
25V
+3.3V_NORMAL
C5430
390pF
50V
0.1uF
C5436
50V
C5424
0.01uF
50V
0.01uF
50V
OPT
C5410
10uF
10uF
10V
OPT
C5406
33pF
50V
33pF
50V
R5401
10K
I2C_SCL1
R5411
12
C5442
4.7uF
4.7uF
50V
SPK_L+
L5401
BLM18PG121SN1D
L5402
NRS6045T100MMGK
10.0uH
R5418
5.1K
R5421
33
R5415
5.1K
0.1uF
C5412
16V
SPK_L-
R5403
100
C5404
1000pF
50V
AUD_LRCK
C5433
1uF
25V
1uF
25V
C5422
10uF
35V
10uF
35V
0.1uF
C5421
50V
AUD_SCK
0.1uF
C5419
50V
C5435
0.47uF
50V
R5422
10K
10K
C5402
100pF
50V
R5404
3.3K
SPK_R-
R5406
3.3
3.3
OPT
D5400
100V
1N4148W
OPT
C5416
22000pF
50V
R5416
5.1K
AUD_LRCH
+3.5V_ST
AMP_EN
+24V_AMP
Q5400
MMBT3904(NXP)
E
B
C
I2C_SDA1
SPK_L+
4.7uF
C5407
10V
R5405
100
C5431
390pF
50V
C5417
22000pF
50V
C5408
33pF
50V
33pF
50V
D5402
100V
1N4148W
OPT
C5441
0.1uF
50V
0.1uF
50V
MAIN_AMP_MUTE
SPK_R-
C5425
22000pF
22000pF
50V
0.1uF
C5401
50V
OPT
+24V_AMP
0.1uF
C5400
50V
OPT
L5400
MLB-201209-0120P-N2
OPT
+24V
R5429
10K
+3.3V_NORMAL
L5406
MLB-201209-0120P-N2
R5423
33K
R5424
47K
47K
54
AMP_NTP7500L
2012.12.10
xxLP860H-ZA
1ST : 0TRIY80001A 2ND : 0TR387500AA
From SOC
AUDIO AMP(NTP-7500L)
Q1801
SPEAKER_L
0x54
SPEAKER_R
DUAL COMPONENT
Instant_Power_On
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.
+3.3V_NORMAL
R6100
10K
10K
C6106
10pF
50V
10pF
50V
SIDE_HP_MUTE
C6105
1uF
10V
10V
L6100
120-ohm
BLM18PG121SN1D
HP_ROUT_MAIN
HP_LOUT_MAIN
R6106
43K
43K
1%
C6107
0.1uF
16V
HP_LOUT_AMP
C6100
1uF
10V
10V
R6102
33K
33K
R6104
43K
43K
1%
HP_ROUT_AMP
C6103
1uF
10V
C6102
1uF
10V
1uF
10V
C6101
1uF
10V
C6108
10pF
50V
10pF
50V
C6104
180pF
180pF
R6103
33K
33K
IC6100
TPA6138A2
3
OUTR
2
-INR
4
GND_1
1
+INR
6
VSS
5
MUTE
7
CN
8
CP
9
VDD
10
GND_2
11
UVP
12
OUTL
13
-INL
14
+INL
R6105
4.7K
4.7K
C6109
180pF
180pF
R6101
10K
10K
+3.3V_NORMAL
R6103-*1
36K
36K
HP_36K
R6102-*1
36K
36K
HP_36K
HEADPHONE AMP
2012.12.10
61
HEADPHONE AMP
XXLP860H-ZA
Click on the first or last page to see other 42LP860H (CHASSIS:LD33B) service manuals if exist.