Instruction/ maintenance manual of the product M-300 Casio
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ELECTRIONIC KEYBOARD M-300 M-300 (with price) INDEX.
— 2 — CONTENTS Specification .................................................................... 2 Block Diagram ................................................................. 3 Circuit Description .............................................
— 3 — BLOCK DIAGRAM CPU MSM6387 - 22 LSI101 Amplifier AN8053N IC101 Speaker Oscillator Q102, X101 VDD Keyboard Buttons Filter Q101 KO0 ~ KO8 KI0 ~ KI7 AVDD CIRCUIT DESCRIPTION Key Matrix Song 1: T.
— 4 — CPU (LSI101: MSM6387-22) Containing a sound data ROM and a DAC (Digital to Analog Convertor), the CPU provides sound wave- form in accodance with the pressed key and the selected tone. The following table shows the pin functions of LSI101. Amplifier/Voltage Regulator (IC101: AN8053N) The right figure shows the internal block of IC101.
— 5 — 13 JA 1 JCM547-MA1M A MC101 R125 R126 R127 R115 R114 R113 R112 R111 R123 R119 R118 R117 R116 R120 R121 R122 R124 75 75 75 75 5 C114 R128 X101 R129 C115 Q102 C117 C116 B E 5 5 LSI101 C111 R13.
— 6 — SCHEMA TIC DIAGRAMS 0.9 2.2 0.3 4 3 2 1 5.0 6 6.8 4.8 2.6 1.9 7 5.
— 7 —.
— 8 — EXPLODED VIEW 10 11 12 13 14 15 S-1 16 17 S-1 17-1 17-2 18 a 9 S-1 8 7 6 5 3 4 1 S-1 2 S-2 S-3.
— 1 — Notes: 1. Prices and specifications are subject to change with- out 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 FOB Japan N Item Code No. Parts Name Specification Q N.R.Yen R Unit Price Electrical Parts 1 6923 3400 PCB ass'y JCM547-MA1M M240093*1 1 1,650 B LSI101 2011 9387 LSI MSM6387-22 1 440 A.
— 10 — 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.
8-11-10, Nishi-Shinjuku Shinjuku-ku, Tokyo 160, Japan Telephone: 03-3347-4926 May , 1995.
An important point after buying a device Casio M-300 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Casio M-300 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Casio M-300 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Casio M-300 you will learn all the available features of the product, as well as information on its operation. The information that you get Casio M-300 will certainly help you make a decision on the purchase.
If you already are a holder of Casio M-300, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Casio M-300.
However, one of the most important roles played by the user manual is to help in solving problems with Casio M-300. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Casio M-300 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
