Samsung SGH-G400 Service Manual page 48

AMP_SPK-
R503
AMP_EN
R507
SC305
C307
U301
C334
R314
R609
C309
R606
C345
R608
C303
R610
C302
R607
TP_SLEE P_CLK
C306
C323
C305
C332
C344
R404
R320
R403
C342
R333
C340
D301
R315
R405 C429
OSC401
C406
T
TP_RF_TCXO
B2
GND
A1
VO-
B1
_SHUT
C1
BYP
IN+
C2
R509
C512
R318 R306
C311 C310
C410
RESOUT_N
C308
C412
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VBATT
U502
C502
1 2
NC NC
A3
VDD
B3
VO+
C3
R504
IN-
R505
R508
R510
R506
TA301
C336
C521
C337
C524
R517
C507
C513
TP303
D2(0)
U502
C502
9-13
Flow Chart of Troubleshooting
AMP_SPK+
C509
LINE_ON
C514
EAR1O_N
C515
LINE_OP
C516
EAR1O_P
Z
C318
Z
R513
R502
C516