4. TROUBLE SHOOTING
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4. TROUBLE SHOOTING
4.2 Power on Trouble – BCM Booting Trouble
TP1
TP2
TP3
TP4
TP5
Q103
EBK61591901
SIA426DJ
D1 D2 D3 D4 D5
G
S1 S2
0
R144
1u
C111
R152
0
0
R154
1
R140
VDD_3.3
40
1
Q
EQBP0008701
2SB1424
1
3
2
C
E
B
Q102
EBK61473001
SI7403BDN
S1 S2 S3
G
D1 D2 D3 D4 D5 D6 D7
1
R141
VDD_3.3
10u
C133
0.1u
C134
I
N
D
93
1
R
VDD_1.2
VDD_2.5
0.1u
C139
0.1u
C149
10u
C150
C156
22u
L102
EAP61746101
NR5040T3R3N
3.3u
22u
C135
22u
C136
VCNTL
SWREG_NDRIVE
SWREG_PDRIVE
VSENSE2P5
SWREG_VFB_SEN
TP1
TP2
TP3
TP4
TP5