Samsung SGH-ZV30 Service Manual page 29

SIM
VREG_USIM
R411 R412
C440
C443
C444
U407
5V
U409
4 1
GND OUT
3 2
NC VDD
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REF_OUT
D401
TP402
2
PS_HOLD
3
1
JIG_DETECT
RESET_N
USIM_IO
USIM_CLK
USIM_RST
C439 C441
KEY_PRESSED
Q403
3
R413
1
HFK_DETECT
2
ON_SW
7-7
AMUX_OUT
USB_OE_N
C410 C411
USB_DAT
USB_SEO
USB_D_P
USB_D_M
R410 390
SIM_IO
SIM_CLK
SIM_RST
PMIC_SBDT
PMIC_SBCK
PMIC_SBST
C442
PM_INT_N
100NF
R440
Q404
JIG_DETECT
R408
3
1
JIG_ON
2
R409
Flow Chart of Troubleshooting
72 AMUX_IN2 REF_ISET
82 AMUX_OUT
REF_BYP
80 REF_OUT
REF_GND
13 USB_OE_N FLSH_DRV_N
17 USB_DAT
GP1_DRV_N
19 USB_SE0 LCD_DRV_N
11 USB_ID KPD_DRV_N
18 USB_D_P VIB_DRV_N
20 USB_D_M SPKR_IN_P
24
KPDPWR_N SPKR_IN_M
57
PS_HOLD SPKR_OUT_P
66 CBL1PWR_N SPKR_OUT_M
68 CBL0PWR_N SPKR_BYP
9
PON_RESET_N VDD_SPKR
30 RUIM_M_IO
26 RUIM_IO
34 RUIM_M_CLK
VDD_MSMC
38 RUIM_CLK VDD_MSME
40 RUIM_M_RST
VDD_RUIM
43 RUIM_RST
VDD_MSM
47 SBDT
VDD_ANA
49 SBCK VDD_WLAN
51 SBST
59
MSM_INT_N VDD_MAIN
R439