Samsung SGH-Z500 Anycall Service Manual page 42

F low Chart of Troubleshooting
SIM
CN401
SIM CONNECTOR
R409
VREG_USIM_2.8V
C437
C438
REF_OUT
SIM_IO
SIM_CLK
SIM_RST
R412
C434 C435 C436
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VF_MSM
R408 0
USB_OE_MSM
USB_DAT_MSM
C433 USB_SEO_MSM
NC
USB_D_P
USB_D_M
PHONE_ON
PS_HOLD
CABLE_DET
D401
PON_RESET_N
R410
MSM_SIM_IO
MSM_SIM_CLK
MSM_SIM_RST
R413
PMIC_SBDT
PMIC_SBCK
PMIC_SBST
PM_INT_N
R414
BOOT_SW
C449
7- 8
72
AMUX_IN2
82
AMUX_OUT
80
REF_OUT
13
USB_OE_N
17
USB_DAT
19 USB_SE0
11 USB_ID
18 USB_D_P
20
USB_D_M
24 KPDPWR_N
57
PS_HOLD
66 CBL1PWR_N
68
CBL0PWR_N
9
PON_RESET_N
30
RUIM_M_IO
26 RUIM_IO
34
RUIM_M_CLK
38 RUIM_CLK
40
RUIM_M_RST
43 RUIM_RST
47
SBDT
49 SBCK
51
SBST
59 MSM_INT_N
R415