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MAJOR WAVEFORMS
1 Clock pulse
MSM6755B-17 pin 32
1
2 +5 V source DVDD
JC connector pin 6
3 APO signal
JC connector pin 5
2
3
4 Sound waveform (R-ch) Tone: Whistle
JC connector pin 4 Key: A4
5 Sound waveform (L-ch) Volume:
JC connector pin 3
4
5
6 Button scan signal KO6
JA connector pin 14
7 Button scan signal KO7
JA connector pin 15
6
7
8 LCD common signal COM9
SED1278F0A pin 55
9 LCD common signal COM10
SED1278F0A pin 56
8
9