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MAJOR WAVEFORMS
1
Clock signal for CPU
Check point CP1
2
Clock signal for DSP
LSI3 pin 14
3
Voltage VDD
IC5 pin 2
4
Reset signal RES
IC5 pin 1
1
2
3
4
5
NMI signal
LSI9 pin 64
6
Reset signal RESB
LSI9 pin 87
7
Sound signal L-OUT
SIELD-WIRE PE-W
8
Sound signal L-VOL0OUT
JJ connector pin 1
Tone: Grand Piano (No. 000), Volume: Max.
Touch speed: Max., Key: A4
5
6
7
8
9
Key common signal KC0
JA connector pin 11
0
Key common signal KC1
JA connector pin 12
9
0
Содержание WK-1800
Страница 30: ...29 PRINTED CIRCUIT BOARD Main PCB JCM733 MA1M Top View Bottom View 1 6 5 4 3 2 9 10...
Страница 31: ...30 Sub PCB JCM733 MA2M 7 8 Sub PCB JCM733 MA3M Top View Top View...
Страница 32: ...31 Console PCBs JCM733 CN1M Top View Top View Console PCBs JCM733 CN2M...
Страница 33: ...32 Display PCB JCM733 LCD1M Top View Bottom View...
Страница 34: ...33 Keyboard PCBs JCM763T KY1M Top View Top View Keyboard PCBs JCM763T KY2M...
Страница 40: ...39 SubPCB JCM733 MA2M MA3M 7 8 Regulator IC Power Amp...
Страница 41: ...40 Console PCBs JCM733 CN1M CN2M S Register S Register...
Страница 42: ...41 LCD Driver PCB JCM733 LCD1M LCD Driver Back Light Circuit...
Страница 43: ...42 Keyboard PCBs JCM763T KY1M KY2M...