Read LG 50PK950R-MA (CHASSIS:PB01A) Service Manual 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.
H
D
M
I0
_R
X
0-
_B
C
M
0
0
3
:D
3
H
D
M
I0
_R
X
C
-_
B
C
M
0
0
3
:D
3
H
D
M
I0
_R
X
2+
_B
C
M
0
0
3
:D
4
H
D
M
I0
_R
X
0+
_B
C
M
0
0
3
:D
3
H
D
M
I0
_R
X
1+
_B
C
M
0
0
3
:D
4
H
D
M
I0
_R
X
1-
_B
C
M
0
0
3
:D
4
H
D
M
I0
_R
X
2-
_B
C
M
0
0
3
:D
4
H
D
M
I0
_R
X
C
+_
B
C
M
0
0
3
:D
3
D2+_HDMI3
JP800
DDC_SDA_2
008:AD5
JP802
CEC_REMOTE
008:H26;008:H17;008:H8;008:R26
B
S
S
83
Q
80
8
S
B
D
G
BLM18PG121SN1D
L801
D
0-
_H
D
M
I4
47K
R822
0
R813
D
D
C
_S
D
A
_2
CK+_HDMI1
008:Y12
D1+_HDMI1
008:Y11
008:Y11
BLM18PG121SN1D
L800
+1.8V_HDMI
0
.1
u
F
C
81
0
D0-_HDMI1
008:Y12
KRC104S
Q800
E
B
C
GND
47K
R831
CK+_HDMI3
008:AL12
0
.1
u
F
C
80
5
0
.1
u
F
C
81
1
D0+_HDMI1
008:Y11
008:Y11
GND
5V_HDMI_4
JP801
D2-_HDMI4
008:AF19
DDC_SCL_1
008:X12
H
D
M
I_
SD
A
0
0
3
:E
3
5V_HDMI_2
008:I20;008:AB7
5.5V
READY
D805
5V_HDMI_3
D1-_HDMI3
C
K
-_
H
D
M
I2
1K
R801
D0+_HDMI1
D1-_HDMI4
008:AF19
KRC104S
Q807
E
B
C
KRC104S
Q803
E
B
C
0
R807
D0-_HDMI3
008:AL13
D2-_HDMI2
008:AF6
0.1uF
C817
+3.3V_HDMI
JP803
1K
R800
D2-_HDMI3
2
.2
u
F
C
81
5
0
R806
D
D
C
_S
D
A
_4
47K
R830
D0-_HDMI3
0.1uF
16V
C803
0
R808
D
1+
_H
D
M
I2
CEC_REMOTE
008:H26;008:H8;008:R26;008:X25
0.1uF
C821
CK+_HDMI1
5.5V
READY
D803
DDC_SCL_2
008:AD5
008:AD5
5.5V
READY
D801
GND
YKF45-7054V
10
33
20
95
G
A
E
JK800
14
NC
13
CE_REMOTE
5
D1_GND
20
SHIELD
12
CK-
11
CK_GND
2
D2_GND
19
HP_DET
18
5V
10
CK+
4
D1+
1
D2+
17
GND
9
D0-
8
D0_GND
3
D2-
16
DDC_DATA
7
D0+
6
D1-
15
DDC_CLK
0
.1
u
F
C
80
7
0.1uF
C801
47K
R816
JP807
0
R824
47K
R835
CK-_HDMI2
008:AE6
GND
GND
4.7K
R811
READY
R827
0
.1
u
F
C
80
9
DDC_SCL_3
D0-_HDMI1
S
D
A
2_
3.
3V
DDC_SDA_3
D2+_HDMI1
CK-_HDMI4
008:AG19
0.1uF
16V
C804
C
K
-_
H
D
M
I4
4.7K
R815
D2-_HDMI1
D2+_HDMI1
008:Y10
4.7K
R810
KRC104S
Q802
E
B
C
0.1uF
16V
C816
D1+_HDMI3
008:AL13
D
1-
_H
D
M
I2
5.5V
READY
D809
HDMI_HPD_2
D0+_HDMI2
008:AE6
D1+_HDMI2
008:AF6
D0+_HDMI3
008:AL13
HDMI_CEC
001:G6
D
2+
_H
D
M
I4
GND
0READY
R832
0
R804
D1-_HDMI1
0
.1
u
F
C
80
8
D1+_HDMI3
KRC104S
Q806
E
B
C
+3.3V_ST
5.5V
READY
D802
3.3K
R819
D0+_HDMI3
DDC_SDA_3
008:AN12
CK-_HDMI3
008:AL12
DDC_SDA_4
008:AH21
2
2
R
82
5
5.5V
READY
D810
D2-_HDMI3
008:AL14
H
D
M
I_
SC
L
0
0
3
:E
3
0.1uF
16V
C802
5V_HDMI_3
008:I11;008:AK15
4.7K
R809
HDMI_HPD_1
001:H2
CK-_HDMI1
008:Y12
GND
D807
A
1
C
A
2
D1+_HDMI4
008:AF19
008:AF19
47K
R823
D1-_HDMI2
008:AF6
0
READY
R834
5V_HDMI_1
+1.8V_HDMI
0.1uF
C825
CEC_REMOTE
008:H26;008:H17;008:H8;008:X25
D
D
C
_S
C
L
_4
KRC104S
Q801
E
B
C
D0-_HDMI2
008:AE6
5V_HDMI_1
0 0 8 : I 2 9 ; 0 0 8 : Z 1 4
S
C
L
2_
3.
3V
5.5V
READY
D800
D811
A
1
C
A
2
0
R818
GND
DDC_SCL_4
008:AH21
D808
A
1
C
A
2
D
0-
_H
D
M
I2
22K
R821
D2-_HDMI1
008:Y10
0
R803
5V_HDMI_2
HDMI_HPD_4
CK+_HDMI3
D1.8V
C
K
+_
H
D
M
I4
DDC_SDA_1
2
2
R
82
9
D0-_HDMI4
008:AG19
GND
CK-_HDMI3
D2+_HDMI4
008:AE19
JP806
0.1uF
16V
C820
12K
1%
R833
D0+_HDMI4
008:AG19
GND
DDC_SCL_3
008:AN12
0
R
82
6
D2+_HDMI3
008:AL14
CEC_REMOTE
008:H17;008:H8;008:R26;008:X25
KJA-ET-0-0032
E
A
G
42
46
30
01
JK803
14
NC
13
CE_REMOTE
5
D1_GND
20
JACK_GND
GND
12
CK-
11
CK_GND
2
D2_GND
19
HP_DET
18
5V
10
CK+
4
D1+
1
D2+
17
GND
9
D0-
8
D0_GND
3
D2-
16
DDC_DATA
7
D0+
6
D1-
15
DDC_CLK
D1+_HDMI1
0.1uF
16V
C812
GND
47K
R836
D2+_HDMI2
008:AG6
DDC_SCL_1
D
0+
_H
D
M
I2
0.1uF
16V
C819
GND
D
2+
_H
D
M
I2
CK+_HDMI2
008:AE6
1K
R802
CEC_REMOTE
008:H26;008:H17;008:R26;008:X25
C
K
+_
H
D
M
I2
0.1uF
16V
C800
D
D
C
_S
C
L
_2
1K
R812
0.1uF
16V
C806
D1-_HDMI3
008:AL13
DDC_SDA_1
008:X13
READY
R828
5V_HDMI_1
5V_HDMI_4
008:S29;008:AI19
D1-_HDMI1
008:Y11
+3.3V_HDMI
0.1uF
C823
KRC104S
Q805
E
B
C
JP805
CK-_HDMI1
D
2-
_H
D
M
I4
6800pF
50V
C814
YKF45-7058V
20
33
20
95
G
A
E
JK802
PK950
14
NC
13
CE_REMOTE
5
D1_GND
20
SHIELD
12
CK-
11
CK_GND
2
D2_GND
19
HP_DET
18
5V
10
CK+
4
D1+
1
D2+
17
GND
9
D0-
8
D0_GND
3
D2-
16
DDC_DATA
7
D0+
6
D1-
15
DDC_CLK
MMBD301LT1G
D812
0.1uF
16V
C818
0
.1
u
F
16
V
C
81
3
D
2-
_H
D
M
I2
D
0+
_H
D
M
I4
GND
JP804
GND
D
1-
_H
D
M
I4
5.5V
READY
D804
D
1+
_H
D
M
I4
CK+_HDMI4
008:AG19
3.3K
R820
0.1uF
C822
47K
R817
0
R814
GND
0
R805
D806
A
1
C
A
2
0.1uF
C824
+3.3V_HDMI
KRC104S
Q804
E
B
C
+1.8V_HDMI
HDMI_HPD_3
YKF45-7058V
20
33
20
95
G
A
E
JK801
14
NC
13
CE_REMOTE
5
D1_GND
20
SHIELD
12
CK-
11
CK_GND
2
D2_GND
19
HP_DET
18
5V
10
CK+
4
D1+
1
D2+
17
GND
9
D0-
8
D0_GND
3
D2-
16
DDC_DATA
7
D0+
6
D1-
15
DDC_CLK
GND
D3.3V
5V_HDMI_2
008:I19;008:AB7
5V_HDMI_3
008:I9;008:AK15
5V_HDMI_4
008:S28;008:AI19
3
.3
K
R
83
8
1
.8
K
R
83
7
HDMI_POWER_3
HDMI_POWER_4
HDMI_POWER_1
HDMI_POWER_2
3
.3
K
R
84
0
1
.8
K
R
83
9
3
.3
K
R
84
2
1
.8
K
R
84
1
3
.3
K
R
84
4
1
.8
K
R
84
3
P_+5V
P_+5V
P_+5V
P_+5V
P_+5V
P_+5V
TDA19997
IC800
1
VSS_1
2
OUT_C+
3
OUT_C-
4
VDDO[3V3]
5
OUT_DDC_CLK
6
OUT_DDC_DAT
7
VSS_2
8
VDDDC[1V8]_1
9
RXA_HPD
10
RXA_5V
11
RXA_DDC_DAT
12
RXA_DDC_CLK
13
RXA_C-
14
RXA_C+
15
VDDH[3V3]_1
16
RXA_D0-
17
RXA_D0+
18
VSS_3
19
RXA_D1-
20
RXA_D1+
21
VDDH[3V3]_2
22
RXA_D2-
23
RXA_D2+
24
VDDH[1V8]_1
25
AUX_5V
2
6
V
S
S
_4
2
7
T
E
S
T
1
2
8
R
X
B
_H
PD
2
9
R
X
B
_5
V
3
0
R
X
B
_D
D
C
_D
A
T
3
1
R
X
B
_D
D
C
_C
LK
3
2
R
X
B
_C
-
3
3
R
X
B
_C
+
3
4
V
D
D
H
[3
V
3]
_3
3
5
R
X
B
_D
0-
3
6
R
X
B
_D
0+
3
7
V
S
S
_5
3
8
R
X
B
_D
1-
3
9
R
X
B
_D
1+
4
0
V
D
D
H
[3
V
3]
_4
4
1
R
X
B
_D
2-
4
2
R
X
B
_D
2+
4
3
V
S
S
_6
4
4
C
D
EC
_D
D
C
4
5
V
D
D
D
C
[1
V
8]
_2
4
6
V
D
D
D
C
[1
V
8]
_4
4
7
T
E
S
T
2
4
8
PD
4
9
I2
C
_S
D
A
5
0
I2
C
_S
C
L
51
RXE_DDC_CLK
52
RXE_DDC_DAT
53
INT_N/MUTE
54
CDEC_STBY
55
VDDS[3V3]
56
VSS_7
57
CEC
58
RXC_HPD
59
RXC_5V
60
RXC_DDC_DAT
61
RXC_DDC_CLK
62
RXC_C-
63
RXC_C+
64
VDDH[3V3]_5
65
RXC_D0-
66
RXC_D0+
67
VSS_8
68
RXC_D1-
69
RXC_D1+
70
VDDH[3V3]_6
71
RXC_D2-
72
RXC_D2+
73
VSS_9
74
R12K
75
VDDH[1V8]_2
7
6
R
X
D
_H
PD
7
7
R
X
D
_5
V
7
8
R
X
D
_D
D
C
_D
A
T
7
9
R
X
D
_D
D
C
_C
LK
8
0
R
X
D
_C
-
8
1
R
X
D
_C
+
8
2
V
D
D
H
[3
V
3]
_7
8
3
R
X
D
_D
0-
8
4
R
X
D
_D
0+
8
5
V
S
S
_1
0
8
6
R
X
D
_D
1-
8
7
R
X
D
_D
1+
8
8
V
D
D
H
[3
V
3]
_8
8
9
R
X
D
_D
2-
9
0
R
X
D
_D
2+
9
1
V
D
D
D
C
[1
V
8]
_3
9
2
V
S
S
_1
1
9
3
O
U
T
_D
2+
9
4
O
U
T
_D
2-
9
5
V
D
D
O
[1
V
8]
9
6
O
U
T
_D
1+
9
7
O
U
T
_D
1-
9
8
V
S
S
_1
2
9
9
O
U
T
_D
0+
1
0
0
O
U
T
_D
0-
1/
16
W
91
K
1%
R
84
5
6 1 3
HDMI
EAX61354901
HDMI2
UI_HW_PORT2
HDMI1
SIDE_HDMI_PORT4
* HDMI CEC
UI_HW_PORT3
UI_HW_PORT1
P l a c e c l o s e
to TDA9996
HDMI3
HDMI4
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