3. TROUBLE SHOOTING
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3.3 Checking DC-DC Block
U1
TP2
TP3
TP1
TP4
B1
A3
A2
A1
U1
C2
C1
C3
B3
B2
VCON
AGND
PGND
EN
FSEL
SW
PVIN
BPEN
FB
10u
C1087
+VPWR
1n
C1088
1n
C1080
R1021 1K
L1041
470n
R1022
51K
C1090
4.7n
10u
C1081
R1023
0
APT0_EN
APT0_VCON
+VSMPS
Rev.B
Rev.B
AW Guide
AW Guide
AW Guide
TP1
TP2
TP4
TP3
BOT