User Guide

SAMSUNG Proprietary-Contents may change without notice

5-5

SGH-A400 Flow Chart of Troubleshooting and Circuit Diagram

Mic-

C113

Mic+

Mic_Bias

22PF

1.1K

R103

330

C108

33UF

R104

C111

22PF

C116

C115

47NF

C112

47NF

1.1K

R107

33PF

5-5 SGH-A400 Microphone Part

Micro Phone does not work

check the connection

from MIC600

Change MIC600

Audio loopback

is enabled by board test

program.

R104, R107 2.2 V

Resolder R104, R107, R103

END