LG RD-JT30 Service Manual page 56

5
D
P5V
C116
4.7U Z
50V
C
B
R79
1K
A
5
4
VNEG1
2
D1
MBR0540T1
C111
D2
1 U Z
MBR0540T1
50V
P12V
D3
1 2
L7
22UH
C112
MBR0540T1
4.7U Z
50V
U12
SW
1
SW
5
VIN
2
GND
4
SHDN
3 FB
FB
LT1613CS5
VNEGRAIL
R73 R74
100KF 27K
VREFN5
D 4
LM4040
Q5B
MMDT2907A
Q5A
VNEGSENC 1 6 VNEGSENB 5
MMDT2907A
4
3
VNEGRAIL
1
C109 C110
4.7U Z 4.7U Z
50V 50V
C113
C114
R68 4.7U Z
C115 4.7U Z
100KF 50V
4.7P J UMT2907A
50V
50V Q2
R71
4.32KF
1 Q3
MMBT2222A
VNR S N8
R75
24.3F
U 13
3
VNR S N6 R76 VNR S N7 VNR S N9
1
4 24.3F
OPA237
R78
33
VNEGRAIL
VNRSN10
C119
0.01U M
UMT2907A
1
Q4
VNEGRAIL
VNR S N5 R80
20KB
R81
4.75KB
3
2
4
R67
VPOS1 VPOS2
3 2
27
Q1
IRFL9014PC
R 69
VPOS3
1
1K
R70
27K
VPOS4
R72
27K
VRST
R77
1
C117 C118
4.7U Z 0.1U K
2
1
D
VPOSRAIL
C
B
A