Samsung SGH-E840 Service Manual page 28

MIC+
C450
MIC
R408
AUXINP
AUXOUTP
C412
AUXINN
AUXOUTN
C419
MICINP
MICOUTP
C422
MICINN
MICOUTN
C428
R400
C406
C405
R404
C408
R407
C417
R412 R411
R413
R414
R416
R417
R425
C446
VCCA_2.9V
R401
C407
R405
C414
C420
C425
3-13
Flow Chart of Troubleshooting
DAC_MIC+
C400
DAC_MIC-
R402
TA400
EAR_MIC+
EAR_MIC-
CSP_MIC+
CSP_MIC-