LG 50PN450H-CA (CHASSIS:PD31A / B / C / PA31A) 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.
PCM_A[0]
PCM_A[4]
PCM_A[1]
PCM_A[7]
PCM_A[2]
PCM_A[6]
PCM_A[5]
PCM_A[3]
R573
22
/PF_CE1
RXA4+
RXACK+
AR519
22
OS
RXA2-
R579
2K
R542
10K
R565
1K
OS
RXA1+
RXA4-
RXB3+
RXB2+
PC_SER_DATA
R569
4.7K
READY
/PF_CE0
PC_SER_CLK
R516
100
100
RXA2-
+3.3V
RXBCK+
R515
4.7K
Commercial
R577 4.7K
RXB4-
RXA0+
/PF_WP
P_SDA
RXB0+
SPI_SCK
RXB2-
/PF_OE
RXB1+
+3.3V_ST
+3.3V_ST
RXACK+
KEY1
RXA4-
RXB2-
RXB2+
R574
22
RXB1-
PF_ALE
+3.3V
R518
100
100
RXBCK+
RXB3-
RXA1+
RXB0-
PCM_A[0-7]
KEY2
R517
100
100
P503
TF05-51S
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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
R556
3.3K
OS
RXB3-
C555
0.1uF
OS
SPI_SDO
/FLASH_WP
R514
22
I2C_SDA
+5V
RXA0-
RXA4+
IC505
W25Q80BVSSIG
Winbond_OS
3
%WP[IO2]
2
DO[IO1]
4
GND
1
CS
5
DI[IO0]
6
CLK
7
HOLD[IO3]
8
VCC
RXA1-
C556
0.1uF
R540
10K
RXB1-
+3.3V_ST
SPI_SDI
LD500
+3.3V_ST
RXA3+
RXB4+
R575
33
P500
104060-8017
FHD
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
16
17
18
19
20
21
22
2
3
2
4
2
5
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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
/PF_WE
RXA3-
/F_RB
RXBCK-
RXB3+
/SPI_CS
RXA3+
RXA2+
RXA0-
Q500
MMBT3904(NXP)
E
B
C
+3.3V_ST
R567
1K
OS
RXA0+
+5V
IR
C517
10pF
50V
RXA2+
C552
0.1uF
RXACK-
LED_RED
DISP_EN
RXA3-
C520
10pF
50V
RXB0-
R568
4.7K
OS
R564
10K
+3.3V
RXACK-
RXA1-
RXB4+
AR518
22
OS
RXB0+
I2C_SCL
C554
10uF10V
OS
RXBCK-
RXB4-
R512 4.7K
P_SCL
R513 4.7K
C550
0.1uF
OS
RXB1+
R578
47K
D500
MMBD6100
A2
C
A1
C535
0.1uF
16V
C534
0.1uF
16V
+3.3V_ST
C547
0.1uF
16V
P501
12507WR-06L
1
2
3
4
5
6
7
UART_RXD
R520
0
R519
0
UART_TXD
P_SDA
PC_SER_CLK
PC_SER_DATA
P_SCL
IC503-*2
M24256-BRMN6TP
ST_OS
3
E2
2
E1
4
VSS
1
E0
5
SDA
6
SCL
7
WC
8
VCC
IC503-*1
AT24C256C-SSHL-T(Cu)
ATMEL_OS
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
IC503-*3
AT24C512C-SSHD-T
ATMEL_NON-OS
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
IC503
M24512-RMN6TP
ST_NON_OS
3
E2
2
E1
4
VSS
1
E0
5
SDA
6
SCL
7
WC
8
VCC
IC505-*3
MX25L6406EM2I-12G
MX_NON-OS
3
WP
2
SO/SIO1
4
GND
1
CS
5
SI/SIO0
6
SCLK
7
HOLD
8
VCC
IC505-*1
MX25L8006EM2I-12G
MX_OS
3
WP#
2
SO/SIO1
4
GND
1
CS#
5
SI/SIO0
6
SCLK
7
HOLD#
8
VCC
IC505-*2
W25Q64FVSSIG
Winbond_NON-OS
3
WP[IO2]
2
DO[IO1]
4
GND
1
CS
5
DI[IO0]
6
CLK
7
%HOLD[IO3]
8
VCC
C518
470pF
READY
C519
470pF
READY
D501
20V
D503
20V
D504
20V
D505
20V
D502
20V
IC504
H27U1G8F2CTR-BC
26
NC_17
27
NC_18
28
NC_19
29
I/O0
30
I/O1
31
I/O2
32
I/O3
33
NC_20
34
NC_21
35
NC_22
36
VSS_2
37
VCC_2
38
NC_23
39
NC_24
40
NC_25
41
I/O4
42
I/O5
43
I/O6
44
I/O7
45
NC_26
46
NC_27
47
NC_28
48
NC_29
17
ALE
3
NC_3
6
NC_6
16
CLE
15
NC_10
14
NC_9
13
VSS_1
12
VCC_1
11
NC_8
10
NC_7
9
CE
8
RE
7
R/B
4
NC_4
5
NC_5
25
NC_16
24
NC_15
23
NC_14
2
NC_2
22
NC_13
21
NC_12
1
NC_1
20
NC_11
19
WP
18
WE
IC504-*1
TC58NVG0S3ETA0BBBH
Toshiba_OS
26
NC_17
27
NC_18
28
NC_19
29
I/O1
30
I/O2
31
I/O3
32
I/O4
33
NC_20
34
NC_21
35
NC_22
36
VSS_2
37
VCC_2
38
NC_23
39
NC_24
40
NC_25
41
I/O5
42
I/O6
43
I/O7
44
I/O8
45
NC_26
46
NC_27
47
NC_28
48
NC_29
17
ALE
3
NC_3
6
NC_6
16
CLE
15
NC_10
14
NC_9
13
VSS_1
12
VCC_1
11
NC_8
10
NC_7
9
CE
8
RE
7
RY/BY
4
NC_4
5
NC_5
25
NC_16
24
NC_15
23
NC_14
2
NC_2
22
NC_13
21
NC_12
1
NC_1
20
NC_11
19
WP
18
WE
R522
0
READY
R521
0
READY
IC504-*2
TC58NVG1S3ETA00
26
NC_17
27
NC_18
28
NC_19
29
I/O1
30
I/O2
31
I/O3
32
I/O4
33
NC_20
34
NC_21
35
NC_22
36
VSS_2
37
VCC_2
38
NC_23
39
NC_24
40
NC_25
41
I/O5
42
I/O6
43
I/O7
44
I/O8
45
NC_26
46
NC_27
47
NC_28
48
NC_29
17
ALE
3
NC_3
6
NC_6
16
CLE
15
NC_10
14
NC_9
13
VSS_1
12
VCC_1
11
NC_8
10
NC_7
9
CE
8
RE
7
RY/BY
4
NC_4
5
NC_5
25
NC_16
24
NC_15
23
NC_14
2
NC_2
22
NC_13
21
NC_12
1
NC_1
20
NC_11
19
WP
18
WE
IC504-*3
H27U2G8F2CTR
26
NC_17
27
NC_18
28
NC_19
29
I/O0
30
I/O1
31
I/O2
32
I/O3
33
NC_20
34
NC_21
35
NC_22
36
VSS_2
37
VCC_2
38
NC_23
39
NC_24
40
NC_25
41
I/O4
42
I/O5
43
I/O6
44
I/O7
45
NC_26
46
NC_27
47
NC_28
48
NC_29
17
ALE
3
NC_3
6
NC_6
16
CLE
15
NC_10
14
NC_9
13
VSS_1
12
VCC_1
11
NC_8
10
NC_7
9
CE
8
RE
7
R/B
4
NC_4
5
NC_5
25
NC_16
24
NC_15
23
NC_14
2
NC_2
22
NC_13
21
NC_12
1
NC_1
20
NC_11
19
WP
18
WE
Memory.LVDS,IR
L13
5
2012-06-01
<NAND Flash>
1GBit
1GBit
<LVDS>
<KEY/IR>
* LCI: LVDS Connection Indicator
7
OS:256KB
NON_OS:512KB
<NVRAM>
<SERIAL FLASH>
NON_OS:64MB
OS:8MB
THERMAL
TH
ER
MA
L
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_AMP
C620
10uF
25V
C615
10uF
10V
C685
330pF
50V
330pF
50V
+5V
AUD_LRCH
R637
39
C677
0.1uF
16V
0.1uF
16V
R618
240
FNIM
AC_DET
L611
10.0uH
Coil_TAIYO
R620
1
FNIM
+1.26V_VDDC
R670
0.1uF
16V
C680
0.1uF
50V
C687
0.1uF
50V
R675
1
IC608
AP1117E33G-13
OUT
IN
ADJ/GND
L616
CIS21J121
L600
120
R667
0.1uF
16V
READY
SPK_R+
AMP_SCL
P_17V
R662
1
R612
1
+3.3V_AMP
R641
4.7K
C613
10uF
25V
READY
+3.3V
C674
33pF
50V
33pF
50V
READY
R659
10K
C617
10uF
6.3V
C618
10uF
6.3V
C614
10uF
10V
FNIM
C688
0.22uF
50V
0.22uF
50V
L603
10.0uH
Coil_GET
R636
39
SPK_L+
+1.5V_DDR
+5V
C606
0.1uF
16V
+5V
C601
0.1uF
16V
L614
10.0uH
Coil_TAIYO
AR600
100
R632
39
L602
10.0uH
Coil_GET
C624
1uF
10V
5V_ON
C691
0.22uF
50V
0.22uF
50V
C621
0.1uF
50V
SPK_L-
+1.25V_TU
R640
4.7K
AMP_RESET_N
AMP_SDA
L610
10.0uH
Coil_GET
C626
3300pF
50V
+5V_ST
C679
0.1uF
50V
0.1uF
50V
+3.3V_AMP
+3.3V_AMP
+3.3V_ST
R621
1
C675
33pF
50V
33pF
50V
READY
C600
10uF
10V
C694
0.22uF
50V
0.22uF
50V
C698
1000pF
50V
1000pF
50V
C630
0.1uF
16V
L612
10.0uH
Coil_TAIYO
+5V
L609
10.0uH
Coil_GET
Q603
MMBT3904(NXP)
E
B
C
+1.8V_TU
C625
10uF
6.3V
FNIM
SPK_L+
L615
10.0uH
Coil_TAIYO
R671
10K
READY
C692
0.22uF
50V
0.22uF
50V
IC604
AZ1117BH-ADJTRE1
OUTPUT
INPUT
ADJ/GND
+3.3V_DDR
+5V_ST
P601
WAFER-ANGLE
1
2
3
4
AUD_SCK
R652
22
22
+2.5V
C678
0.1uF
16V
IC602
AP1117EG-13
FNIM
ADJ/GND
OUT
IN
R633
39
RL_ON
C607
0.1uF
16V
P600
SMAW200-H18S1
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
15
10
5
19
R600
10K
C689
0.22uF
50V
0.22uF
50V
C672
0.1uF
0.1uF
16V
IC603
TPS54327DDAR
3
VREG5
2
VFB
4
SS
1
EN
5
GND
6
SW
7
VBST
8
VIN
9
[EP]GND
R653
22
22
AMP_MUTE
C684
330pF
50V
330pF
50V
C616
10uF
10V
C690
0.1uF
50V
L601
BLM18PG121SN1D
C697
1000pF
50V
1000pF
50V
C610
0.1uF
16V
R614
220
5%
AUD_LRCK
R657
10K
READY
SPK_R-
C631
10uF
6.3V
P_17V
C686
1uF
50V
C696
1000pF
50V
1000pF
50V
SPK_R-
+5V
+3.3V
C693
0.22uF
50V
0.22uF
50V
SPK_R+
R615 1 FNIM
C699
1000pF
50V
1000pF
50V
C605
10uF
10V
AUD_MASTER_CLK
RL_ON
C681
1uF
50V
R613
100
5%
+5V_ST
RL_ON
C673
2.2uF
2.2uF
10V
IC613
AZ1117BH-ADJTRE1
OUTPUT
INPUT
ADJ/GND
SPK_L-
+3.3V_ST
C619
10uF
6.3V
C608
10uF
10V
C695
68uF
35V
IC600
AP2121N-3.3TRE1
1
GND
2
VOUT
3
VIN
C612
10uF
6.3V
R664
10K
1
/
1
6
W
5
%
R609
100
+5V_ST
VS_DET
VS_ON
+3.3V_TU
L606
120-ohm
2A
L605
2.2uH
2.2uH
R611
33
33
C629
10uF
16V
C650
10uF
16V
C609
10uF
16V
R648
100
C623
100pF
50V
C628
0.1uF
25V
+3.3V_ST
R624
15K
READY
R628
4.7K
+3.3V_AMP
17V_DET
R617
33K
1%
R619
51K
1%
R601
10K
READY
R606 4.7K
+5V
R607
10K
READY
C611
10uF
10V
IC605
AP1117E33G-13
OUT
IN
ADJ/GND
C627
10uF
6.3V
+5V
R608
1
R673
200
1%
R674
1K
1%
+3.3V_DDR
R639
10K
C622
0.1uF
0.1uF
R604
4.7K
IC606
STA380BWF
1
VCC_REG
2
VSS_REG
3
OUT2B
4
GND2
5
VCC2
6
OUT2A
7
OUT1B
8
VCC1
9
GND1
10
OUT1A
11
VDD_REG
12
GND_REG
1
3
N
C
_
1
1
4
N
C
_
2
1
5
N
C
_
3
1
6
N
C
_
4
1
7
N
C
_
5
1
8
N
C
_
6
1
9
N
C
_
7
2
0
N
C
_
8
2
1
N
C
_
9
2
2
N
C
_
1
0
2
3
N
C
_
1
1
2
4
N
C
_
1
2
25
NC_13
26
NC_14
27
NC_15
28
VDDDIG1
29
GNDDIG1
30
FFX3A
31
FFX3B
32
EAPD/FFX4A
33
TWARNEXT/FFX4B
34
VREGFILT
35
AGNDPLL
36
MCLK
3
7
B
I
C
K
I
3
8
L
R
C
K
I
39
SDI
40
RESET
41
PWDN
42
INTLINE
43
SDA
44
SCL
45
SA
46
TESTMODE
47
GNDDIG2
48
VDDDIG2
49
[EP]
C602
2.2uF
10V
2.2uF
10V
READY
C603
10uF
16V
IC601
TJ1118S-2.5
1
GND
2
OUT
3
IN
C632
2pF
50V
2pF
50V
READY
D600
5V
READY
C633
1000pF
50V
1000pF
50V
C634
10uF
6.3V
C604
1uF
10V
Q604
AO3407A
G
D
S
Power,AMP
L13
6
2012-06-01
SPEAKER_R
SPEAKER_L
+5V->+1.8V_TU
<Power Wafer>
R1
R1
--> +1.5V_DDR
R1
+5V->+2.5V
Vout=0.765*(1+R1/R2)
Vout=1.25*(1+R2/R1)
+5V->+1.25V_TU
+5V_ST --> 3.3Vst
+5V->+3.3V
->+3.3V_TU
->+3.3V_TU
Vout=1.25*(1+R2/R1)
R2
R1
R2
R2
5V_STBY --> MULTI 5V
1.26V Core
R2
3A
3A
300mA
200mA
400mA
80mA
600mA
400mA
7
600mA
+5V->+3.3V_DDR
POWER & AMP
<ST-BY>
<MUTI>
<AUDIO AMP>
