![background image](http://html.mh-extra.com/html/samsung/sgh-n620/sgh-n620_service-manual_1190931028.webp)
Flow chart of trouble shooting
5-2
VCC
6.3V
47UF
GND
ON/OFF
3
VIN
15
VOUT
MCL4154
D100
C129 10NF
R100 47K
C1
15
100UF
6.3V
1
5
VOUT
10NF
C123
C1
12
10UF 6.3V
27PF
C125
R103
100K
C
111
6.3V
C1
16
1UF
100UF
C1
13
C1
17
10NF
10NF
1
VCC
100NF
C151
6.3V
10UF
C100
C190
1UF
6.3V
10UF
C124
VOUT
5
10NF
C101
LP2985AIM5-3.0
U102
BYP
ASS
4
2
GND
3
ON/OFF
1
VIN
A
VCC
LP2985AIM5-3.3
U100
4
BYP
ASS
2
C127 1UF
U106
FDC6329L
R2
1
1K
R108
1K
R104
1K
R107
6.3V
10UF
C1
14
U105
LP2985AIM5-3.0
4
BYP
ASS
GND
2
ON/OFF
3
VIN
R101
1K
100NF
C1
10
RB414_II06N
M100
GND
2
10NF
C1
18
C102
C128
10NF
S_BA
TT
R
TC_VCC
LED_3V3
+VBA
TT
POWER
100PF