Read LG 50PN450H-CA (CHASSIS:PD31A / B / C / PA31A) Service Manual online
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>
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