Power B/D - LG 50PJ350 Service Manual

POWER B/D

POWER Wafer 18P
+5V_ST
L501
MLB-201209-0120P-N2
C502
C508 C505 C504
10uF 100uF
0.1uF 10uF
10V 16V
100
R506
RL_ON
C513
0.1uF
16V
R507 100
5V_ON
C514
0.1uF
16V
Stand-by (5VST --> +3.3V)
+5V_ST
IC500
EAN58801701
AP2121N-3.3TRE1
VIN 2 VOUT
3
1
C500 GND
C501 C509 C512
10uF 0.1uF 10uF 10uF
16V
16V 6.3V 6.3V
S7 DDR 1.5V
S7M DDR 1.5V
+5V_ST
L503
C536
CIC21J501NE 100pF
50V
R e p l a c e d P a r t
R1
R509
10K
IC502
MP2212DN
C l o s e t o I C
FB EN/SYNC
1 8
R505
11K
R2
1/10W
GND SW_2
3A
5% 2 7
IN SW_1
Placed on SMD-TOP 3 6
BS VCC
4 5
C535
22uF
10V
R501 0
R503
10 C538
1/10W
1uF
1%
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.
S_POWER
Copyright © 2010 LG Electronics Inc. All rights reserved.
Only for training and service purposes
P_17V
C522 C524
68uF
0.1uF
35V
50V
P500
+3.3V
SMAW200-H18S1
R502
10K
1 2
READY
L507
3 4 CB4532UK121E
5 6
R526
C521
7 8
C585 C527
22 0.1uF
9 10 ERROR_DET
100uF 100uF
16V 16V
11 12
13 14
15 16
17 18 R513 100
AC_DET
19 C519
0.1uF
16V
P_17V
+3.3V_ST
+3.3V_NEC_ST
C544
C590
10uF 0 . 1 u F
50V
25V
L502
EAM44020101
CB3216PA501E
C515
0.1uF
16V
1074 mA
P_+5V
Vout=0.8*(1+R1/R2)
+1.5V_DDR_IN
C520
1uF
25V
1K
R500
POWER_ON/OFF1
L504
3.6uH
NR8040T3R6N
C539
C540
0 . 1 u F
22uF
10V
C537
0 . 1 u F
Placed on SMD-TOP
50V
P_+5V
C530
10uF
RL_ON
16V
RL_ON
0
R544
IC507
MP8706EN-C247-LF-Z
IN GND
1 8
C541 0 . 1 u F
SW_1 VCC
2 7
R543
SW_2 FB 5.1K
3 6
C546
R2
0 . 1 u F
BST EN/SYNC
4 5
R545 47
R1
IC506
AZ1117H-ADJTRE1(EH11A)
L520
+7V
10uH
INPUT
3 1
Vout=0.8*(1+R1/R2)
2
OUTPUT
C545
22uF
10V
R527 0
RL_ON
IC501
MP8706EN-C247-LF-Z
IN GND
1 8
C523 0 . 1 u F
SW_1 VCC
2 7
3A
R530 R531 R515
SW_2 FB 62K 3.3K 200
3 6
C528
0 . 1 u F
1% 1% 1%
BST EN/SYNC
4 5
L519
3.6uH
S7 core 1.26V
R1 R2
1.26V 40.2K 71.5K
1.2V 40.2K 82.5K
40.2K 65.5K
1.29V
P_+5V
+5V
Q501
SI3865BDV
R535
22K R1/C1 R2
6 1
ON/OFF D2_1
5 $ 0 . 0 8 1 2
S2 D2_2
4 3
C566
C565
22uF
4 . 7 u F
16V
10V
1uF 3225
C594
Multi Power(3.3V -->2.5V)
+3.3V
IC505
0IPRPML001A
MIC39100
IN
+5V_TU
C562 C564
10uF 0.1uF
6.3V 16V
R538
330
ADJ/GND
1%
Multi Power(5V -->3.3V)
c l o s e t o t u n e r
+1.26V_VDDC
+5V
IC504
AZ1085S-3.3TR/E1
INPUT MAX 3A OUTPUT
3 2
$ 0 . 1 2 2
1
ADJ/GND
C553
10uF
16V
S7 core 2.5V
+2.5V_AVDD
1.8A
3 OUT
1
2
GND C567 C573 C580
C586
C589
10uF 10uF 0.1uF
47uF 47uF
6.3V 6.3V 16V
16V 16V
+3.3V_AVDD
L514
MLB-201209-0120P-N2
C570
0.1uF
16V
+3.3V
650 mA
C569 C581 C587 C588
10uF 10uF 47uF
47uF
16V
6.3V 6.3V 16V
D501
SAM2333
For Debug
EAX61373301
POWER 5
LGE Internal Use Only
1 3