Samsung SGH-B100 Service Manual page 39

Flow Chart of Troubleshooting
SIM_RST
SIM_CLK
DSP_DB(0:15)
DSP_DB(15)
D2
DB15
DSP_DB(14)
D3
DB14
DSP_DB(13)
E3
DB13
DSP_DB(12)
E2
DB12
DSP_DB(11)
F3
DB11
DSP_DB(10)
F2
DB10
DSP_DB(9)
F1
DB9
DSP_DB(8)
F4
DB8
DSP_DB(7)
G4
DB7
DSP_DB(6)
G3 DB6
DSP_AB(0:8)
DSP_DB(5)
H5
DB5
DSP_DB(4)
J6 DB4
DSP_DB(3)
J5
DB3
DSP_DB(2)
K3 DB2
DSP_DB(1)
K2
DB1
DSP_DB(0)
K1
DB0
DSP_AB(8)
K5
AB8
DSP_AB(7)
K7
AB7
DSP_AB(6)
M1
AB6
DSP_AB(5)
M2
AB5
DSP_AB(4)
N2
AB4
DSP_AB(3)
N1
AB3
DSP_AB(2)
L5
AB2
DSP_AB(1)
P1
AB1
DSP_AB(0)
K6
AB0
DSP_IO L3
I|O
DSP_IO
L2 RWN
DSP_RWN
R3
RESETN_CSP
FLASH_RESET
E6
NC4
C5 OCTL1
F5
OCTL2
E5 NC
A4
OCTL4
G6 OCTL5
VMOD_EN
B3
OCTL6
A3 OCTL7
TX_EN
B1 SERLE1
A2
SERLE2
SERLE
C1
SERDA
SERDAT
C2 SERCK
SERCLK
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SIM300
R300
1 1
VSIM
2 2
3 3
G G
10
C303 C304
C305 C306
VCCD_2.9V VCCA_2.9V
C300
UCP300
G-CSP2100B1-YV10
C321
C320
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6
6
5 5
4
4
SIM_IO
G G
9 8 7
C307
VCCD_2.9V
VBAT
C302 C301
C11
VDD34
J13
VDD12
N9
UP_CLK
R10
UP_RST
P10
UP_IO
J11
SIM_IO
K11
SIM_RST
K14
SIM_CLK
K12
VSIM
H11
VRTC
G12
LED2_DRV
G13
LED1_DRV
F13
RING_DRV
F15
VIB_DRV
C12
VLDO_7
A14
VLDO_6
VL5S_B C9
D10
VL5S_A
C309
B10
VLDO_5
B11
VL4S_B
A12
VL4S_A
B12
VLDO_4
VLDO_3 A13
J12
VLDO_2
G11
VLDO_1
F14
VACC
CSN_PSC K8
L8
SCLK_PSC
N7
SDO_PSC
SDI_PSC M7
E14
VEXT
E13
VBAT
E11
CH_BDRV
F12
CH_ISEN
D14
CH_RES
D15
NC3
E10
NC9
A10
VREF
CREF E9
H10
RTC_ALMN
INTRQ
PWR_KEEP
3
1
TR300
2
10-8
C308
SIMCLK
SIMRST
SIMDATA
SIM_IO
SIM_RST
SIM_CLK
VSIM
VCCB_2.9V VCCA_2.9V
VCCD_2.9V
KEY_BL1
VRF_2.9V
VIB_DRV
BAND_SEL
UP_CS
UP_SCLK C312 C313 C314 C315
VBAT
UP_SDO
UP_SDI
VREF
RTCALARM
C319
VIB_EN
INTRQ
PWR_KEEP
RST
KEY_COL(2)
KEY_ROW(0)
VRTC_3V
VCCD_1.8V
C316 C317 C318