Samsung SGH-Z310 Service Manual page 54

Flow Chart of Troubleshooting
C749
EAR_MEL_L
EAR_AMP_ON
VBATT
12
13
SVDD
R829
14 INL-
15 INL+
_SHDN
16
R726
2122
11 10 9
R830
8
INR-
7
INR+
6
U705 SGND
5
PVSS
1 2 3 4
C757
9-16
C750
EAR_MEL_R