Instruction/ maintenance manual of the product CTK-100 Casio
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(with price) CTK-100 ELECTRONIC KEYBOARD R CTK-100 INDEX.
CONTENTS SPECIFICATIONS .......................................................................................................... 1 BLOCK DIAGRAM ........................................................................................................
— 1 — SPECIFICA TIONS Electrical Current Drain with 9V DC: No Sound Output 47 mA ± 20% Maximum Volume 413 mA ± 20% with keys C2, D2, E2 and F2 pressed in Car-Horn tone, Volume; Maximum Output Le.
— 2 — BLOCK DIAGRAM KO0~KO9 KI0~KI7 Keyboard Switches Oscillator VDD +5V Power supply circuit VC +9V Amplifier Speakers Output Jack LA4598 Filter T3/T4 CPU MSM6387-13 Main Volume T2.
— 3 — 0 I K1 I K2 I K3 I K4 I K5 I K6 I K7 I K 0 O K ) 1 C K ( 01 2 C2 # C2 D2 # D2 E2 F 1 O K ) 2 C K ( 23 2 # F2 G2 # G2 A2 # A2 B 2 O K ) 3 C K ( 45 3 C3 # C3 D3 # D3 E3 F 3 O K ) 4 C K ( 67 3 .
— 4 — CPU (MSM6387-13) The CPU contains a sound data ROM and a DAC (Digital to Analog Convertor), and it provides a sound waveform in accordance with the pressed key and the selected tone.
— 5 — Power Amplifier (LA4598) The power amplifier is a 2-channel power amplifier with a standby switch. The following table shows the pin functions of the power amplifier. TROUBLESHOOTING Nature of Trouble Faulty Block Checkpoint No power Power Supply Circuit Emitter of T2 should provide +5.
— 6 — IC AND TRANSIST OR LEAD IDENTIFICA TION T3, T4: 2SC1740SQ T2: 2SD2008Q,R LA4598 30 29 28 24 27 26 25 23 22 21 20 19 18 17 16 TEST2 TEST1 RESET GND AVDD OUT AGND COSI COSO VDD KI0 KI1 KI2 KI3 KI4 1 2 3 7 4 5 6 8 9 10 11 12 13 14 15 KO0 KO1 KO2 KO6 KO3 KO4 KO5 KO7 KO8 KO9 KO10 KO11 KI7 KI6 KI5 B C E B C E Power GND Ch1 B.
— 7 — SCHEMA TIC DIAGRAMS Keyboard PCBs M496K-KY1M, KY2M.
— 8 — PCB VIEW and MAJOR W A VEFORMS 56 7 1 4 3 2.
— 9 — Main PCB M4502-MA1M 1 4 0.0 0.3 0.0 0.0 0.0 5.1 4.2 2.3 0.0 0.0 2.4 4.6 5.0 0.0 0.0 0.3 0.0 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 3 4.6 2.
— 10 — EXPLODED VIEW.
P ARTS LIST CTK-100 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 separately . 3. The numbers in item column correspond to the same numbers in drawing.
FOB Japan N Item Code No. Parts Name Specification Q M N.R.Yen R * Unit Price PCB Ass'y M5505-MA1M 2011 296 1 LS I MSM6387-1 3 1 1 580 A F 2114 289 1 IC LA459 8 1 1 140 A B 2220 138 7 Transistor 2SC1740SQ-TP- T 2 10 13 A A 2253 035 7 Transistor 2SD2008Q,R-T105- T 1 10 30 A A 2310 784 8 Zener diode RD4.
FOB Japan N Item Code No. Parts Name Specification Q M N.R.Yen R * Unit Price PCB Ass'y Keyboard 2301 010 1 Diode 1S2473-T-77- T 4 9 20 8 C A JX 3725 203 0 PC joiner MASK X JSF50-9-14 0 1 10 34 C.
MA0300941A.
An important point after buying a device Casio CTK-100 (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 CTK-100 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 CTK-100 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Casio CTK-100 you will learn all the available features of the product, as well as information on its operation. The information that you get Casio CTK-100 will certainly help you make a decision on the purchase.
If you already are a holder of Casio CTK-100, 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 CTK-100.
However, one of the most important roles played by the user manual is to help in solving problems with Casio CTK-100. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Casio CTK-100 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
