Samsung SGH-T519 Service Manual page 48

Flow Chart of Troubleshooting
EAR_CHECK
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
K3
DSP_DB(2) DB2
DSP_DB(1) K2
DB1
DSP_DB(0) K1
DB0
K5
DSP_AB(8) AB8
K7
AB7
DSP_AB(7)
M1
DSP_AB(6) AB6
M2
DSP_AB(5) AB5
N2
AB4
DSP_AB(4)
N1
DSP_AB(3) AB3
L5
DSP_AB(2) AB2
P1
DSP_AB(1) AB1
K6 AB0
DSP_AB(0)
L3
I|O
DSP_IO
L2
RWN
DSP_RWN
R3
FLASH_RESET RESETN_CSP
E6
OCTL0
PCS_RX_EN
C5
BAND_SEL OCTL1
F5 OCTL2
R318
MOD_SEL
E5
OCTL3
TX_EN
A4
OCTL4
XOENA
G6 OCTL5
SX_EN
B3 OCTL6
PAC_EN
A3
OCTL7
RX_EN
B1 SERLE1
A2 SERLE2
SERLE
C1
SERDAT SERDA
C2 SERCK
SERCLK
AFC
VAPC
C335
RTX_IP
RTX_IN
RTX_QP
RTX_QN
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VCCA_2.9V
VCCD_2.9V
VCCD_1.8V VBAT
VCCD_2.9V
C300
C301
C303 C302
C304
C11
VDD34
J13
VDD12
N9
UP_CLK SIMCLK
R10
UP_RST SIMRST
P10
UP_IO SIMDATA
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
B10
UCD301 VLDO_5
B11
VL4S_B
DCS_TX_EN
A12
VL4S_A GSM_TX_EN
B12
VLDO_4
A13
VLDO_3
J12
VLDO_2
G11
VLDO_1
F14
VACC
CSN_PSC K8
UP_CS
L8
SCLK_PSC UP_SCLK
N7
SDO_PSC
UP_SDO
M7
SDI_PSC
UP_SDI
E14
VEXT
E13
VBAT
E11
CH_BDRV
F12
CH_ISEN
D14
CH_RES
ICHRG
D15
ADC_AUX2
E10
ADC_AUX1
A10
VREF
CREF E9
H10
RTC_ALMN
C334
R304
RTCALARM
INTRQ
PWR_KEEP R305
RST
PSW1_BUF
PWR_ON
C336 JIG_ON
DSP_INT
CLK13M_MC
XOENAQ
CLK32K
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VRTC_1.5V
SIM_IO
SIM_RST
SIM_CLK
VSIM
VCCD_1.8V_EN
VCCB_2.9V VRF_2.9V
VCCA_2.9V VCCD_2.9V
VBAT
C312
C313 C314 C315
C316 C317 C318 C319
C321
VCCB_2.9V
U301
R301
C332 C333
R302
VBAT
10-2
R300
BAT300