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Flow Chart of Troubleshooting and Circuit Diagrams
Problem #1
INIT_PWR
PM_SW_RST
VDDOK
POR_N
PWR_EN
PM_TCXO_EN
PDA_CLK_EN
PDA_PM_SCL
PDA_PM_SDA
PDA_USB_IT
CLK32K_PM
VBAT
CLK32K_BT
VCC_1.8V
TA802
C809
VCORE_1.2V
VBAT
C810
C811
VFUSE_2.5V
VPLL_1.8V
C816
TA802
L800
C809
TA800
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A9
VREF_18
R801
C8
PON
K4
SW_RESET
B9 TEST_MODE
J2
VDDOK
J3
PORN
C2
IT_WAKE_UP
H6
PWREN
C1
TCXO_EN
B2
REQUSET_MC
B1
SELECT_INTERFACE
J5
SPI_CS
J6
SCL_SPICLK
K6
SPI_DATAOUT
H7 SDA_SPIDATAINT
D2
MASTER_CLK
H8
IT_USB
A1
32KHZIN
K3 32KHZOUT
A4
VBAT_VIO_VMEM1
VBAT
B4
VBAT_VIO_VMEM2
A2
VMINUS_VIO_VMEM1
B3
VMINUS_VIO_VMEM2
L800
A3
VLX_VIO_MVEM1
C4
VLX_VIO_VMEM2
A5 VIO_VMEM_FB
D9
VBAT_VCORE1
D10
VBAT_VCORE2
TA803
B10
VMINUS_VCORE1
C9
VMINUS_VCORE2
L801
C10
VLX_VCORE1
D8
VLX_VCORE2
A10
VCORE_FB
C7
VBAT_VPLL_FUSE
A7
VFUSE
A8
VPLL
A6
VAUX
B6 VBAT_VAUX
VAUX_2.8V
VBAT
C817
C815
C818
C807
C739
C737
10-2
C806
C819
C805
C740
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