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SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams
5-2
One Point Contact
PCB FIXING HOLES(1.9)
H401
10NF
C319
100NF
C427
D441
MCL4154
10UF/6.3V
C750
U470
2
GND
4
NC
ON/OFF
3
VIN
15
VOUT
R583
LP2981AIM5X-3.3
ON/OFF
R1,C1
61
R2
4
S2
100K
SI3865DV
U474
2
D2
3
D2
5
C328
10UF/6.3V
10NF
C326
C536
10NF
C748
1UF
ALERT_VCC
1K
R738
10UF/6.3V
C535
U621
LP2981AIBPX-3.3
1
GND
N/C
2
ON/_OFF
5
VIN
43
VOUT
LP2985AIBPX-3.0
U620
1
GND
2
N/C
5
ON/_OFF
4
VIN
VOUT
3
AVCC
H403
3
VOUT
VCC
100UF
C579
U619
LP2985AIBPX-3.0
GND
1
N/C
2
ON/_OFF
5
VIN
4
H402
H400
C751
100NF
C436
100UF
100PF
C305
10UF/6.3V
C306
C555
27PF
10NF
C307
RB414
BAT1
1K
R584
C749
10NF
C587
C318
1UF
1UF
VOUT
RTC_VCC
+VBATT
+VBATT
RTC_3V3
POWER