Samsung SGH-E720 Service Manual page 7

SGH-E720 Flow Chart of Troubleshooting
AFC
VAPC
C428
RTXIP
RTXIN
RTXQP
RTXQN
AOUTAP
AOUTAN
AOUTBP
AOUTBN
MICINP
MICINN
MICOUTP
MICOUTN
AUXINP
AUXINN
AUXOUTP
AUXOUTN
CLK32K
XOENAQ
DSP_INT
JIG_ON
PWR_ON
PSW1_BUF
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D9
AFC
E7
TXP
B5
RAREF2
B6
RAREF1
D7
RXTXIP
D6
RXTXIN
C7
RXTXQP
C6
RXTXQN
P11
AOUTAP
N12
AOUTAN
R12
AOUTBP
P12
AOUTBN
N14
MICINP
M14
MICINN
N15
MICOUTP
P15
MICOUTN
M15
AUXINP
L14
AUXINN
K13
AUXOUTP
L13
AUXOUTN
R13
VXVCM
M13
VREGP
R14
VREGN
R4
DAICK
P4
DAIRN
L6
DAIDI
M6
DAIDO
N4
RTC_CLK
D1
XOENAQ
R6
MC
P5
NC7
P3
DINTR
C14
PWR_SW2
C15
PWR_SW1N
L7
PSW1_BUF
K9
RESET_O
N10
MODE
M9
PWR_KEEP
L10
INTRQ
L9
VIB_RNG_EN
NEG
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GNDS17 K10
GNDS16 J10
GNDS15 J9
GNDS14 J8
GNDS13 J7
GNDS12
GNDS11 H8
GNDS10 H7
GNDS9 H6
GNDS8 G10
GNDS7 G9
GNDS6 G8
GNDS5 G7
GNDS4 F10
GNDS3 F9
GNDS2 F8
GNDS1 F7
AUX_ADC3
GND_OCTL B4
VDD_OCTL C4
GNDV P13
VDDV L11
GNDB F6
VDDB A6
GNDD
VDDD N11
VDD_IO2 J4
VDD_IO1 N5
GND_HCUR F11
GND_PSC2 K15
GND_PSC1 B15
GNDQ E8
VDD67 B13
POS
2-4
NC6 2
1
NC5
H9
D13
M10
P6
VSS4
VSS3 R2
VSS2 K4
VSS1 G5
VDD3 N6
VDD2 M3
VDD1 J3
VDD5 C10