Samsung SGH-S720i Service Manual page 35

Flow Chart of Troubleshooting and Circuit Diagrams
AOUT_A_P
C402
YMU800_SP_OUT1
SPK_OUT_SEL
AOUT_A_N
SPK_N
YMU800_SP_OUT2
U15
TEST1
CPTSTSTOP_CKO T17
ATDO_PWM2 T13
ATDI_RTS1 L5
ATCK_CTS1 M4
K12
ATMS_PIO45
PIO31_IRQ6 P12
PIO00_IRQ5 P16
IRQ4
P18
IRQ3
P17
IRQ2
M19
IRQ1
M16
PIO47
J16
R14
PIO34
U18
PIO33
C400
R400
1S2
R406
1-2IN
R408
2S1
D2
C411 C412
R430
R206
CP_TDO
CP_TDI
CP_TCK
CP_TMS
MV_INT
YMU765_IRQ
JACK_IN
CSP_HPE_IRQ
LED_DATA
USB_CON
BP_VF
CHG_OFF
EAR_SW
CHG_DET
Q_TOUCH_SCL
SPK_OUT_SEL
Q_TOUCH_SDA
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VBAT
C401
D4
R407
4S1
U400
3-4IN
3S2
R429
R412
Q_TOUCH_DET
3-18
YMU800_HP_OUT_L
EAR_L_N
AOUT_B_N
EAR_SEL
R409
YMU800_HP_OUT_R
R411