Read LG 50PT350B-SG (CHASSIS:PB12K) Service Manual online
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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.
TC2P
TCLK2P
TCLK2N
C315
22pF
50V
22pF
50V
READY
TCLK1P
C325
68uF
35V
TB2N
C339
1000pF
50V
C337
0.22uF
50V
DISP_EN
TD2N
TA2N
TE2P
R392
4.7K
4.7K
C333
0.22uF
50V
0.22uF
50V
C326
330pF
50V
ZD301
5.1V
C314
0.1uF
50V
AUD_SCK
R387
22
KEY2
TD1P
TB1P
R397
10K
R355
2K
R396
10K
C340
1000pF
50V
C310
4700pF
4700pF
50V
+3.3V
R323
2.2
C342
1000pF
50V
TC1P
PC_SER_CLK
C322 1uF
25V
AMP_RESET_N
TE2N
AC_DET
TC2N
R383
0
0
TE1N
R379
4.7K
4.7K
TOUCH_VER_CHK
AUD_LRCK
TD2P
TA2P
P_SDA
C336
0.22uF
50V
C334
0.22uF
50V
50V
TE1P
C335
0.22uF
50V
DISP_EN
TC2N
C313
22pF
50V
22pF
50V
READY
TB1P
UART_RXD
TCLK2P
C321
0.1uF 50V
R393
4.7K
R390
22
22
IR
L303
10.0uH
R324
0
TB2P
TCLK1N
ZD306
5.1V
READY
C308
0.1uF
16V
AMP_DEMOD_SDA
P
3
0
0
S
M
A
W
2
5
0
-
H
0
4
R
1
2
3
4
TE1P
C316
0.1uF
50V
AUD_LRCH
SUB_SCL
TA1P
R1300
20
R386
22
R398
22
22
PC_SER_DATA
R391
22
22
R394
10K
Q306
2SC3052
2SC3052
E
B
C
AMP_MUTE
P_17V
TC1N
C327
330pF
50V
TCLK2N
ZD302
5.1V
P302
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
R1302
10K
R321
2K
R353
10K
READY
P_SCL
R326
10K
10K
READY
TB2P
R385
22
TC2P
R399
22
22
C319
0.1uF
50V
0.1uF
50V
R388
22
C323
0.1uF 50V
R384
22
TA1N
P301
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
R389
22
TCLK1N
C309
22pF
50V
22pF
50V
READY
C331
10pF
PC_SER_DATA
PC_SER_CLK
TD1N
KEY1
TB1N
Q305
2SC3875S(ALY)
READY
E
B
C
L302
10.0uH
TE2N
+3.3V_ST
TA2P
SUB_SDA
P_SCL
TA2N
TA1P
ZD305
5.1V
READY
TE1N
R381
10K
+3.3V_ST
R1301
20
TE2P
LED_RED
TD1N
L300
10.0uH
C338
0.22uF
50V
TD2P
AUD_MASTER_CLK
L301
10.0uH
ZD303
5.1V
READY
TB1N
UART_TXD
TA1N
C311
0.1uF
50V
TC1N
C318
0.1uF
50V
0.1uF
50V
UART_TXD
C317
680pF
680pF
50V
UART_RXD
P_SDA
C330
0.1uF
16V
0.1uF
16V
C312
22pF
50V
22pF
50V
READY
C320 1uF
25V
TD2N
TC1P
+3.3V_ST
C341
1000pF
50V
IC300
STA368BWG
@compC
26
GND_PLL
27
XTI
28
BICKI
29
LRCKI
30
SDI
31
RESET
32
INT_LINE
33
SDA
34
SCL
35
GND_DIG_2
36
VDD_DIG_2
17
OUT3B/FFX3B
3
TEST_MODE
6
OUT2B
16
CONFIG
15
VDD
14
GND_REG
13
OUT1A
12
GND1
11
VCC1
10
OUT1B
9
OUT2A
8
VCC2
7
GND2
4
VSS
5
VCC_REG
2
SA
21
VDD_DIG_1
1
GND_SUB
20
TWARN/OUT4A
19
EAPD/OUT4B
18
OUT3A/FFX3A
23
PWRDN
24
VDD_PLL
25
FILTER_PLL
22
GND_DIG_1
3
7
[EP]GND
TB2N
TD1P
TCLK1P
P303
104060-8017
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
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
ZD304
5.1V
READY
AMP_DEMOD_SCL
R320
2K
R382
0
READY
C324
0.1uF
50V
GP4 LM1
20110531
2
Main/Power/GPIO
7
LVDS
Close-by
Close-by
Key/IR
Close-by
Close-by
Audio AMP
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