(with price) M-300 M-300 INDEX ELECTRIONIC KEYBOARD
CONTENTS Specification .................................................................... 2 Block Diagram ................................................................. 3 Circuit Description ........................................................... 3 PCB View and Major Waveforms .................................... 5 Schematic Diagrams ....................................................... 6 Exploded View ................................................................. 8 Parts List ................
BLOCK DIAGRAM KO0 ~ KO8 KI0 ~ KI7 CPU Amplifier AN8053N IC101 Filter Q101 MSM6387-22 LSI101 Speaker VDD Keyboard AVDD Oscillator Q102, X101 Buttons CIRCUIT DESCRIPTION Key Matrix KI0 KI1 KI2 KI3 KI4 KI5 KI6 KI7 KO0 F3 F#3 G3 G#3 A3 A#3 B3 C4 KO1 C#4 D4 D#4 E4 F4 F#4 G4 G#4 KO2 A4 A#4 B4 C5 C#5 D5 D#5 E5 KO3 F5 F#5 G5 G#5 A5 A#5 B5 C6 Piano Street organ Trumpet Flute Violin Woodbass Volume Up Train Car Quiz Cheer Animal Stop Siren Horror Coun
CPU (LSI101: MSM6387-22) Containing a sound data ROM and a DAC (Digital to Analog Convertor), the CPU provides sound waveform in accodance with the pressed key and the selected tone. The following table shows the pin functions of LSI101. Pin No. Terminal In/ Out Function 1, 2 TEST1, TEST2 3 RESET In Power ON reset terminal. On: +5 V 4 AVDD In +5 V sorce for the built-in DAC 5 OUT Out 6 AGND In Ground (0 V) source for the built-in DAC 7 GND In Ground (0 V) source 8 COSI In 21.
PCB VIEW AND MAJOR WAVEFORMS 6 2 3 1 7 5 4 1 C107 C104 125 C102 D101 C106 5 D108 D109 LED101 C103 IC101 No. D110 D111 D112 13 328 E 75 PS-BL L102 PZ-BK 75 D105 JCM547-MA1M A D105 D106 D107 R101 PZ-R 75 JA L101 PS-Q No.
SCHEMATIC DIAGRAMS 1 2.2 0.9 0.3 6 4.8 7 1.9 2.6 4 2 5 6.8 3 5.
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EXPLODED VIEW 10 a 11 9 12 S-1 8 13 14 S-1 6 15 5 7 16 S-1 4 3 17-1 1 17 S-1 2 S-2 17-2 S-3 18 —8—
PARTS LIST M-300 Notes: 1. Prices and specifications are subject to change without prior notice. 2. As for spare parts order and supply, refer to the "GUIDEBOOK for Spare parts Supply", published seperately. 3. The numbers in item column correspond to the same numbers in drawing.
PARTS LIST N Item 1 LSI101 IC101 Q101, Q102 D101 D102 D103 D104 ~ D112 J101 JA L101, L102 LED101 MC101 X101 2 D201 ~ D235 JB 2-1 N N N N N 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 17-1 17-2 18 S-1 S-2 S-3 Code No.
Description of Capacitors A general description of capacitors is shown in the following table. The description consists of Type, Value, Rated Voltage and Tolerance. When you need a capacitor, please find a substitution in your country by yourselves referring to the description. Ref. No of Capacitor C102 C103 C104, C105 C106 C107 C108 C109 C110 C111 C113,C114 C115 C116 C117 Description Electrolytic, 100 µF, 16 V, ±20% Electrolytic, 470 µF, 10 V,±20% Electrolytic, 22 µF, 10 V,±20% Semiconductive, 0.
8-11-10, Nishi-Shinjuku Shinjuku-ku, Tokyo 160, Japan Telephone: 03-3347-4926 May, 1995
