Power Supply - LG 32LD400_LC320WUG-SCR7 Service Manual

5
D
NEAR 5380
AL2O
(8) AL1
AR2O
(8) AR1
AL1O
(8,13) AL0
AR1O
(8,13) AR0
C
AV33
(2,3,4,8) AV33
C91 C91 C261 C261
NC/4.7uF/10V NC/4.7uF/10V 1uF/10V 1uF/10V
0805C 0805C
AL2_OUT
R826 R826 R840 R840
10K_F 10K_F 0 0
R843 R843
B
LINE_OUT_L R828 R828 R829 R829 15K_F 15K_F
5K11_F 5K11_F
C263 C263
1000pF/50V 1000pF/50V
A
5
4
C87 C87
C90 C90
AL0_AUX
AR0_AUX
L50 L50 C256 1uF/10V C256 1uF/10V
0 0
U49 U49
0805R 0805R
AV-33
8 7
CP CN
C257 1uF/10V C257 1uF/10V
9 6
PVDD VDD
10 5
PGND EN
11 4
NC SGND
12 3
OUTL OUTR
C555 100pF/50V C555 100pF/50V C556 100pF/50V C556 100pF/50V
13 2
-INL -INR
0603R 0603R
NC NC R842 R842
14 1
+INL +INR
DRV602PWR DRV602PWR
4
3
4.7uF/10V 4.7uF/10V LINE_OUT_L
0805C 0805C
4.7uF/10V 4.7uF/10V LINE_OUT_R
0805C 0805C
AL0_AUX (8,13)
AR0_AUX (8,13)
1.8V to 4.5V
AV-33

Power supply

R667 R667
100K 100K
nSHUTDOWN-L
AR2_OUT
R841 R841 R827 R827 10K_F 10K_F
0 0 0603R 0603R
NC NC
R830 R830 15K_F 15K_F R831 R831 5K11_F 5K11_F LINE_OUT_R
C266 C266
1000pF/50V 1000pF/50V
3
2
SHUTDOWN circuit
R677 R677 22K 22K Q61 Q61
2
(13) MUTE
KN3904S KN3904S
R678 R678
10K 10K
AL2_OUT R688 R688 470 470
AR2_OUT R689 R689 470 470
APPROVED BY: APPROVED BY: APPROVED BY:
CHECKED BY: CHECKED BY: CHECKED BY:
DESIGN BY: DESIGN BY: DESIGN BY:
PCB P/ N: PCB P/ N: PCB P/ N:
ECN NO: ECN NO: ECN NO:
SCH FILE : SCH FILE : SCH FILE :
PCB FILE : PCB FILE : PCB FILE :
2
1
AV33
D143 D143
LL4148WP LL4148WP
1206D 1206D
nSHUTDOWN-L
CE124 CE124
+ +
47uF/16V 47uF/16V
ecd6
P12 P12
2PJ1554-100111 2PJ1554-100111
2
4
5
RCA_2PJ1554 RCA_2PJ1554
C253 C253 C264 C264
470pF/50V 470pF/50V 470pF/50V 470pF/50V
AUDIO L/R OUTPUT
TECHNOLOGY TECHNOLOGY TECHNOLOGY
MODEL MODEL MODEL MT5387_LGE_32/42LD400 MT5387_LGE_32/42LD400 MT5387_LGE_32/42LD400
(3632-1442-0150) (3632-1442-0150) (3632-1442-0150)
(3642-1112-0150) (3642-1112-0150) (3642-1112-0150)
CIRCUITY CIRCUITY CIRCUITY AUDIO/LINE OUT/HP AUDIO/LINE OUT/HP AUDIO/LINE OUT/HP
0171-2271-3274 0171-2271-3274 0171-2271-3274 Sheet Sheet Sheet 12 12 12 of of of
N/A N/A N/A 04 04 04
REV: REV: REV:
363214420150.DSN 363214420150.DSN 363214420150.DSN PCB REV: PCB REV: PCB REV:
04 04 04
017122713274.BRD 017122713274.BRD 017122713274.BRD DATE: DATE: DATE:
Wednesday, August 25, 2010 Wednesday, August 25, 2010 Wednesday, August 25, 2010
1
D
C
B
A
16 16 16