Huawei Ascend G510, Руководство по обслуживанию

Страница: 67 / 96

G510 Maintenance Manual V1.0 INTERNAL
2013-01-28
Huawei Confidential Page 67 of 96
Analysis
Figure 9-30 shows the audio processing circuit inside the MSM8225.
Figure 9-30 Audio processing circuit inside the MSM8225
The G510 provides three kinds of audio output:

Receiver output: Signals are output by the CPU.

Speaker output: Signals are output by the PM8029 to the PA and to the speaker.

Microphone output: The G510 provides the two-channel headset.
Signal Symbol Description Reference Measurement or
Waveform
EAR1_AMP_1_OP Output to the receiver None
EAR1_AMP_1_ON Output to the receiver None