42PW350R-MA (CHASSIS:PU11A) - LG TV Service Manual (repair manual). Page 18

Read LG 42PW350R-MA (CHASSIS:PU11A) Service Manual online

THERMAL
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.
C532
0.01uF
25V
C518
0.1uF
50V
C550
10uF
10V
IC505-*1
TJ3964S-2.5
GND
VOUT
VIN
C557
0.1uF
50V
C546
100pF
50V
READY
R522
75K
1/16W
1%
R501
10K
READY
+3.3V_ST
C512
10uF
6.3V
0.1uF
C506
16V
L503
3.6uH
+3.3V_AVDD
+3.3V
R533
1
C514
0.1uF
16V
C565
10uF
16V
READY
C559
270pF
50V
0.1uF
C538
16V
R510
15K
17V
C540
0.1uF
16V
READY
C571
0.1uF
16V
+3.3V_AVDD
C567
10uF
6.3V
READY
C580
0.1uF
16V
L508
120-ohm
2A
C554
4.7uF
50V
C516
2700pF
L511
MLB-201209-0120P-N2
+5V_ST_EN
R511
330K
R525
82.5K
1/10W
1%
C539
0.1uF
16V
R502
10K
READY
L506
120-ohm
2A
+5V
JP505
C541
2700pF
IC502
TPS54319TRE
DEVELOPE
1
VIN_1
3
GND_1
7
COMP
9
SS/TR
10
PH_1
11
PH_2
12
PH_3
13
BOOT
14
PWRGD
15
EN
16
VIN_3
5
AGND
8
RT/CLK
6
VSENSE
4
GND_2
2
VIN_2
17
EP[GND]
LD501
SAM2333
READY
A2[RD]
C
A1[GN]
C534
10uF
10V
R532
1
IC507
TPS54231D
DEVELOPE
3
EN
2
VIN
4
SS
1
BOOT
5
VSENSE
6
COMP
7
GND
8
PH
C573
10uF
6.3V
P500
SMAW200-H18S1
READY
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
15
10
5
19
0.1uF
C536
16V
L505
22.0uH
EAP61606601
C502
10uF
10V
IC506
AZ1085S-3.3TR/E1
1
ADJ/GND
2
OUTPUT
3
INPUT
R503
10K
1/16W
5%
R521
39K
1%
C552
4.7uF
50V
RL_ON
R526
22
+1.5V_DDR_IN
R508
10K
+5V_ST
IC500
AP2121N-3.3TRE1 
EAN58801701
1
GND
2 VOUT
3
VIN
R504
10K
C548
10uF
10V
IC504
AZ1085S-3.3TR/E1
1
ADJ/GND
2
OUTPUT
3
INPUT
L507
3A
+5V_ST
P501
SMAW200-H18S1
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
15
10
5
19
C570
0.1uF
16V
IC501
TPS54319TRE
DEVELOPE
1
VIN_1
3
GND_1
7
COMP
9
SS/TR
10
PH_1
11
PH_2
12
PH_3
13
BOOT
14
PWRGD
15
EN
16
VIN_3
5
AGND
8
RT/CLK
6
VSENSE
4
GND_2
2
VIN_2
17
EP[GND]
5V_ON
C589
47uF
16V
+5V
L509
120-ohm
2A
C563
15pF
50V
R519
330K
C527
100uF
16V
READY
R513
100
D501
40V
MBRA340T3G
R520
1K
READY
C501
0.1uF
16V
R529
1K
READY
0.1uF
C551
16V
C519
0.1uF
16V
+5V_ST_EN
C545
0.1uF
16V
R524
3.6K
C537
10uF
16V
R518
15K
C509
10uF
6.3V
+5V_ST
Q501
RTR030P02
S
D
G
C515
0.1uF
16V
+2.5V_AVDD
C533
10uF
10V
C569
22uF
16V
L501
120-ohm
3A
R512
1K
READY
R505
10K
1/16W
5%
AC_DET
R530
0
ERROR_DET
C560
10uF
16V
C511
22uF
16V
READY
R531
0
C529
100pF
50V
READY
C549
0.1uF
16V
C517
0.01uF
25V
IC505
MIC39100
0IPRPML001A
2
GND
3 OUT
1
IN
C504
100uF
16V
C525
10uF
16V
R509
0
READY
C510
0.1uF
16V
READY
+3.3V_ST
+5V_ST_EN
L502
3.6uH
C561
10uF
16V
+1.26V_VDDC
C555
0.01uF
50V
C544
22uF
16V
C526
100uF
16V
C513
0.1uF
16V
R507
100
C542
0.1uF
50V
R506
100
LD500
SAM2333
READY
A2[RD]
C
A1[GN]
+3.3V_ST
+5V_TU
RL_ON
C547
22uF
6.3V
READY
R523
16K
R528
20K
1%
R500
10K
1/16W
5%
+3.3V
C586
47uF
16V
READY
C556
0.015uF
50V
C520 0.01uF
R527
105K
1%
C543 0.01uF
Q500
RT1C3904-T112
E
B
C
C585
100uF
16V
R516
10K
READY
C524
68uF
35V
C522
0.1uF
50V
C503
10uF
16V
R515
12K
1/16W
1%
R514
10.7K
1%
17V
C508
0.1uF
16V
+3.3V_ST
C564
0.1uF
16V
+5V_ST_EN
C531
22uF
6.3V
READY
C500
10uF
16V
C521
0.1uF
16V
C568
0.1uF
16V
C562
10uF
6.3V
C530
10uF
16V
READY
R517
0
READY
C505
10uF
16V
L510
5      13
POWER
S7 core 2.5V
Multi Power(+3.3V_AVDD -->2.5V_AVDD)
Stand-by (5V_ST --> +3.3V ST)
1.8A
EAX63425901(8)
POWER Wafer 18P
2A
Vout=0.8*(1+R1/R2)
R2
R1
3.2A / P-CHANNEL
R1
R2
Vout=0.827*(1+R1/R2)
3A
Switching freq: 600K
Vout=0.8*(1+R1/R2)
Switching freq: 600K
R2
R1
3A
P_CH FET(+5V_ST_EN Source)
17V => +5V
+5V_ST_EN --> +1.5V_DDR_IN
+5V_ST_EN --> +1.26V_VDDC
+5V --> +3.3V
+5V_ST_EN --> +3.3V_AVDD
2010.09.13
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