Casio M-300 manual

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A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Casio M-300, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

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The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Casio M-300 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

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First and foremost, an user manual of Casio M-300 should contain:
- informations concerning technical data of Casio M-300
- name of the manufacturer and a year of construction of the Casio M-300 item
- rules of operation, control and maintenance of the Casio M-300 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Casio M-300 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Casio M-300, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Casio service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Casio M-300.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Casio M-300 item, and its use of respective accessory, as well as information concerning all the functions and facilities.

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Table of contents for the manual

  • Page 1

    ELECTRIONIC KEYBOARD M-300 M-300 (with price) INDEX[...]

  • Page 2

    — 2 — CONTENTS Specification .................................................................... 2 Block Diagram ................................................................. 3 Circuit Description ........................................................... 3 PCB View and Major Waveforms .................................... 5 Schematic Diag[...]

  • Page 3

    — 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: Twinkle Twinkle Little Stars Song 4: Old MacDONALD Had a Farm Song 2: Pop Goes the Weasel Song 5: Clap Your hands Song 3: Lullaby (Brahms) Song 6: O Ch[...]

  • Page 4

    — 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. AVD[...]

  • Page 5

    — 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 R130 C110 5 5 R108 C109 R107 C108 R106 Q101 R110 D104 75 75 75 75 E B PZ-R C107 C105 R104 C104 C102 125 D102 J101 L101 R101 D101 R105 C106 IC101 75 PS-Q [...]

  • Page 6

    — 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[...]

  • Page 7

    — 7 —[...]

  • Page 8

    — 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[...]

  • Page 9

    — 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. P ARTS LIST M-300[...]

  • Page 10

    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 IC101 2114 3269 IC AN8053N 1 110 A Q101, Q102 2220 1387 Transistor 2SC1740SQ-TP-T 2 13 B D101 2390 1323 Diode RB100A-T32-T 1 29 B D102 2390 0371 Diod[...]

  • Page 11

    — 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. Ref. No of Capacitor Description C102 Electrolytic, 100 µ F[...]

  • Page 12

    8-11-10, Nishi-Shinjuku Shinjuku-ku, Tokyo 160, Japan Telephone: 03-3347-4926 May , 1995[...]