A.2.8V/3V B.1.8V/3V C.3.6V/5V D.5V/3V
A.揚聲器損壞 B.揚聲器接口接觸不良 C.音頻IC損壞 D.和弦IC損壞
A.PA B.MIX C.LNA D.PCM解碼
A.25Ω B.50Ω C.100Ω D.200Ω
A.GSM,AMPS和D-NTT B.D-AMPS,GSM和NTT C.GSM,AMPS和D-NT