Flow Chart Of Troubleshooting - Samsung SGH-U100 Service Manual

Flow Chart of Troubleshooting

E4
BT_TXD
HCI_RX
E5
BT_RXD
HCI_TX
E7
BT_RTS
HCI_RTS
E8
BT_CTS
HCI_CTS
A7
PCM_SYNC
AUD_FSYNC
B6
PCM_CLK AUD_CLK
C5
PCM_OUT AUD_IN
C7
PCM_IN AUD_OUT
B5
JTAG_TMS
D4
JTAG_TCK
E6
JTAG_TDO
C3
JTAG_TDI
A8
TX_DBG
TX_DBG
D7
IO0|EXT_CLK_REQ_OUT
C6
IO1|EXT_CLK_REQ_IN
B7
IO2|SCL
D5
IO3|SDA
A6
IO4
C4
IO5
C8
IO7
B4
IO14
F7
IO15
1
NC1
2
NC2
VBAT
1
ADJ2
2
MODE|DATA
3
VIN
4
FB1
5
DEF_1
TA301
VBAT VBT_1.8V
U102
H6
VBAT
G7
VDD_IO2_1
D8
VDD_IO1
A3
VDD_IO2_2
H8
VDD_IO_SF1
B3
VDD_IO_SF2
F8
BB_LDO_OUT1
H5
BB_LDO_OUT2
A4
BB_LDO_OUT3
D2
ANA_LDO_OUT
F2
RFIO_LDO_OUT
G3
OSC_LDO_OUT
G4
TL_LDO_OUT
F1 C147
VDD_IN_RFIO
C2
VDD_IN_ANA
H3
VDD_IN_OSC
C143
BGAP_V B1
A1
BGAP_I
R123
F6
SLOW_CLK_IN
E1
XTALM
E2
XTALP|FAST_CLK_IN
D6
EMRST
H1
RFP
H2
RFM
B2
ANATEST1
C1 KA_OUT
ANATEST2
G5
VLDO_OUT
F5
VDD_IN_BB
G6
KA_OUT
E3
BT_EN
NSHUT_DOWN
HP_CORE_1.6V
U305
L302
10
SW2
9
EN2
8
GND
7
EN1
6
SW1
L303
11
C372
RFIO_LDO_OUT
C148 KA_OUT
C139 C138
C140 C141
OSC102
4
C142
1
CLK32K
C144
C145
F102
4 2
BAL DC
5 BAL 3
UNBAL
NC G G G
1 6 7 8
VCCD_1.8V
L305
D302
C371 C373
3-32
3
2
RFIO_LDO_OUT
C146
BT_ANT
1
1
2
2
3
3
R124
4
4
VBT_1.8V
R315
VLDO1_1.5V
BT_ANT_GND
1
1
2
2
3
3
4
4