Read LG 50PX950-UA / 50PX950-UF (CHASSIS:PU02B) Service Manual online
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.
POWER
C444
100uF
16V
16V
L407
BLM18SG700TN1D
C447
0.1uF
50V
0.1uF
50V
C450
22uF
R439
110
1/10W
1%
R426
910
1%
R434
0
1/10W
5%
R427
66.5
1%
C437
22uF
16V
22uF
16V
+5V
R440
0
0
1/10W
5%
5%
IC406
AZ1117H-ADJTRE1(EH11A)
2
OUTPUT
3
INPUT
1
ADJ/GND
R430
1K
1K
1%
IC403
AZ1085S-ADJTR/E1
1
ADJ/GND
2
OUTPUT
3
INPUT
R441
330
330
1/10W
1%
1%
C465
100uF
16V
16V
C435
0.1uF
50V
0.1uF
50V
ERROR_DET
C403
0.1uF
16V
L402
MLB-201209-0120P-N2
0LCML00003B
C422
100uF
16V
C417
0.1uF
50V
R415
100
C401
10uF
6.3V
OPT
R413
10K
OPT
AC_DET
R411
22
RL_ON
C407
0.1uF
16V
C416
0.1uF
16V
5V_ON
R405
100
P_17V
R400
100
C418
0.1uF
16V
16V
+3.3V
+5V
ST_5V
C409
0.1uF
16V
C423
10uF
6.3V
OPT
L405
CB4532UK121E
EAM38058401
L403
CB4532UK121E
EAM38058401
C420
10uF
10V
C405
10uF
10V
C443
47uF
16V
16V
L413
BLM18SG700TN1D
GND
GND
C406
47uF
16V
R401
0
+3.3V_ST
C446
0.1uF
16V
0.1uF
16V
GND
+3.3V_NEC_ST
C414
0.1uF
16V
ST_5V
IC400
AP2121N-3.3TRE1
1
GND
2
VOUT
3
VIN
D1.8V
1.8V_1.2V_EN
+5V_TU
+3.3V
L408
3.6uH
L411
UBW2012-121F
C439
0.1uF
R442
47
R429
39K
1%
IC402
MP8706EN-C247-LF-Z
3
SW_2
2
SW_1
4
BST
1
IN
5
EN/SYNC
6
FB
7
VCC
8
GND
C429
47uF
16V
47uF
16V
C434
0.1uF
0.1uF
R433
0
+3.3V_EN
007:AB20
C454
100uF
16V
D3.3V
A2.5V
C408
100uF
16V
C419
68uF
35V
R431
13K
13K
1/8W
1%
1%
R428
1.2K
1%
C445
22uF
10V
22uF
10V
C452
0.1uF
16V
C410
22uF
10V
22uF
10V
C411
0.1uF
16V
+5V
C431
22uF
10V
22uF
10V
D1.2V
A1.2V
C460
0.1uF
0.1uF
R443
47
C461
22uF
10V
22uF
10V
R446
39K
1%
C412
0.1uF
IC404
MP8706EN-C247-LF-Z
3
SW_2
2
SW_1
4
BST
1
IN
5
EN/SYNC
6
FB
7
VCC
8
GND
R447
1.2K
1%
L409
3.6uH
C463
0.1uF
16V
R444
0
P_17V
RL_ON
C455
10uF
25V
10uF
25V
R445
5.1K
5.1K
R437
0
0
C440
0.1uF
0.1uF
10
R416
C451
22uF
16V
16V
R412
0
C442
22uF
22uF
C456
22uF
16V
16V
C449
22uF
22uF
16V
C438
0.1uF
0.1uF
C428
0.1uF
0.1uF
R414
470K
1%
C457
0.1uF
16V
0.1uF
16V
L406
2uH
C436
0.1uF
0.1uF
R410
0
C430
22uF
16V
16V
R409
100K
C441
1uF
10V
1.8V_1.2V_EN
P400
SMAW200-H18S1
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
15
10
5
19
R436
820K
1%
0.1uF
C433
C432
22uF
22uF
10V
L404
3.6uH
NR8040T3R6N
R406
10K
C425
100pF
50V
OPT
L414
CIC21J501NE
R403
10K
10K
1/10W
1%
C402
22uF
22uF
10V
R404
6.8K
R402
10.5K
1/10W
1%
C404
0.1uF
16V
C421
0.1uF
16V
0.1uF
16V
C426
0.1uF
0.1uF
16V
L415
MLB-201209-0120P-N2
L412
MLB-201209-0120P-N2
ST_5V
ST_5V
JP406
IC405
MP2208DL-LF-Z
3
PGND_1
2
SS
4
SW_1
1
AGND
6
NC
5
IN_1
7
BS
8
VCC
9
POK
10
IN_2
11
SW_2
12
PGND_2
13
EN/SYNC
14
FB
15
EP
IC401
MP2108DQ
3
LX
2
VIN
4
PGND
1
BST
5
SGND
6
SS
7
FB
8
COMP
9
VREF
10
RUN
C424
3300pF
50V
4 14
POWER
EAX61557901
FROM POWER B/D
R1
3A
V0 = 1.25(1+R2/R1)
BCM3549 A2.5V
R2
TUNER & Demod
POWER Wafer 18P
3.3V_ST & NEC
DDR 1.8V
BCM core 1.2V volt
+7V
R2
R1
BCM3549 A3.3V
Vout=0.8*(1+R1/R2)
Vout=0.8*(1+R1/R2)
R2
R1
Vout=0.8*(1+R1/R2)
R1
R2
2.5A
70mA
68mA
Vout=0.9*(1+R1/R2)
3A
R1
R2
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