| BLOCK DIAGRAM |
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| LED driver |
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| LED driver |
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| IC371 |
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MIDI | Q104 ~ Q111 | LEDs |
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| BA612 |
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OUT IN |
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| La ~ Lg, Lp |
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| KO1 ~ KO3 | |||
| LS0 ~ |
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| LS7 | P41 |
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| KO Signal |
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| KO0 ~ |
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| P40 | Generator IC102 |
| Buttons | |||
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| TC74HC174AF |
| KO5 | ||||
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| CPU |
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Keyboard |
| LSI14 |
| KI1 ~ KI5 |
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HD6433294A19F |
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| Power Switch | |||||
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FI0 ~ FI7 |
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| POWER |
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KC0 ~ |
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| Reset IC |
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SI0 ~ SI7 |
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| IC5 |
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KC7 |
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| RESET |
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| RH5VL36AA |
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| A0 ~ |
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| A14 |
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| D0~D7 | Working Storage RAM |
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Key Controller |
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LSI107 |
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HG52E35P |
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| LSI105 |
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| A0 ~ A2 | A0 ~ A14 |
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A0 ~ A3
Effect RAM
EA0 ~ EA14
DSP
RA0 ~ RA19
Sound Source ROM
LSI103
ED0 ~ ED7
LSI102
HG51B115FD
RD0 ~ RD15
LSI101
WCK1 SLOP BCK
D/A Converter
LSI104
UPD6376GS
Output
Speakers
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| Filter |
| Filter |
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| IC101 |
| IC101 |
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Main
Volume
Power Amplifier
IC402
LA4598
VC LVDD DVDD
VCC AVDD VDD
Power Supply Circuit
IC401, Q401 ~ Q405
— 4 —