Samsung SGH-Z500 Anycall Service Manual page 44

F low Chart of Troubleshooting
Speaker
BUFF_TCXO
MELODY_IRQ
MELODY_RESET
R513
C514
C511
HPOUT_L
HPOUT_R
YMU_VDD_3.0V
R504
R505
C504
C505
CLKI
LED
/IRQ
/RST
NC
PLLC
VDD
VSS
VREF
C512
C513
R520
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D2
D3
D4
D5
U502
D6
D7
MTR
SPOUT2
SPOUT1
C518
R519 C520
7- 10
OE2_N
A2(1)
MELODY_CS
WE2_N
D2(0)
D2(1)
D2(2)
D2(3)
D2(4)
D2(5)
D2(6)
D2(7)
SPOUT2
SPOUT1
VBATT
R517
C519