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0.5 s
Power button ON
1
2
–
–
CH1: 5 V
CH2: 5 V
1 NMI signal
JD connector pin 1
2 APO signal
JH connector pin 6
50 µs
5
6
–
–
CH1: 5 V
CH2: 5 V
5 Key scan signal KC0
JA connector pin 9
6 Key scan signal KC1
JA connector pin 10
MAJOR WAVEFORMS
20 ms
3
CH1
4
CH2
–
–
CH1: 5 V
CH2: 5 V
3 Button scan signal PA0
JD connector pin 9
4 Button scan signal PA1
JD connector pin 8
0.5 s
Power ON
CH1
7
CH2
8
–
–
CH1: 5 V
CH2: 5 V
7 RS signal PA4
JJ connector pin 4
8 R/W signal PA5
JJ connector pin 5
1 ms
CH1
9
CH2
0
˜
˜
CH1: 50 mV
CH2: 50 mV
9 DAC output (L-ch)
JH connector pin 9
0 DAC output (R-ch)
JH connector pin 8
CH1
CH2
— 13 —
1 ms
CH1
A
CH2
B
˜
˜
CH1: 50 mV
CH2: 50 mV
A Sound signal (L-ch)
JK connector pin 4
B Sound signal (R-ch)
JK connector pin 5
CH1
CH2
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