Instruction/ maintenance manual of the product CTK-630 Casio
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ELECTRONIC KEYBOARD (with price) CTK-630 CONTENTS Page Specifications ................................................................................................................................... 2 Block Diagram .................................
— 2 — ELECTRICAL Nominal Limit Current drain with 9 V DC: No sound output 220 mA 220 mA ± 30 % Maximum volume 900 mA 900 mA ± 30 % with white keys C4 to G5 pressed in Recorder tone Volume: maxim.
— 3 — BLOCK DIAGRAM KC0 ~ KC7 FI0 ~ FI10 SI0 ~ SI19 Working Storage RAM (64K-bit) LSI103 SRM2264LM90 MIDI EA0 ~ EA12 EIO0 ~ EIO7 Sound Source ROM (16M-bit) LSI104 MX23C1610MC- 12CA20 LRCK SO BCK D.
— 4 — KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7 FI0 C2 (1) C#2 (1) D2 (1) D#2 (1) E2 (1) F2 (1) F#2 (1) G2 (1) SI0 C2 (2) C#2 (2) D2 (2) D#2 (2) E2 (2) F2 (2) F#2 (2) G2 (2) FI1 G#2 (1) A2 (1) A#2 (1) B2 (1.
— 5 — Key Second contact (2) First contact (1) FI KC SI Reset IC IC105 RE5VA35AA DSP LSI101 HG51B227FB VDD Reset signal VDD Battery set RESET VDD POWER From power switch NMI APO PLE CPU LSI105 UPD912GF-3BA SCKO Note: Each key has two contacts, the first conatct (1) and second contact (2).
— 6 — CPU (LSI105: UPD912GF-3BA) The 16-bit CPU contains a 1k-byte RAM, three 8-bit I/O ports, two timers, a keycontroller and serial interfaces. The CPU detects key velocity by counting the time between first-key input signal FI and second-key SI from the keyboard.
— 7 — DIGITAL SIGNAL PROCESSOR (LSI101: HG51B227FB) The DSP receives 16-bit serial sound data output from the CPU and adds the selected effect to the sound data using the effect RAM. Then the DSP provides the sound data to the DAC. The DSP contains two I/O ports, which controls LEDs.
— 8 — AVDD 470 AG AG 1K 1K 1K C333(H) C332(H) 2SC1740SQ 1K AG AG 2SC1740SQ AVDD 47K 22K 50V0.22 µ 10V22 µ From the DAC To main volume Synch signal Data Word clock Bit clock Data Word clock Bit c.
— 9 — LG DSP LSI101 HG51B227FB LVDD PB0 ~ PB4 IC103 BA612 LED Driver LC0 ~LC4 Q110 ~ Q117 LED Driver PA0 ~ PA7 La ~ Lg, Lp POWER AMPLIFIER (IC101: LA4598) The power amplifier is a two-channel amplifier with standby switch. The following table shows the pin function of IC101.
— 10 — TROUBLESHOOTING Nature of Trouble Faulty Block Cause/Remedy No power Power supply circuit Faulty Q101 ~ Q106. Replace Q101 ~ Q105. Faulty D101 ~ D105. Replace D101 ~ D105. Power jack (J101) Open J101 or poor soldering. Replace J101 or resolder.
— 11 — MAJOR W A VEFORMS 1 POWER ON signal UPD912GF-3BA pin 21 2 APO signal UPD912GF-3BA pin 3 3 Reset signal for the DSP UPD912G-3BA pin 99 5 Key scan signal KC0 UPD912GF-3BA pin 31 6 Key scan si.
— 12 — PRINTED CIRCUIT BOARDS Main PCB JCM461-MA1M Console PCB JCM461-CN1M Top View Top View BL R110 R109 75 250 E 5 R137 C116 300 PR Y L105 C208 C167 IC105 X102 3 C174 C173 D110 R182 R180 R302 C1.
— 13 — 9 10 11 12 13 14 15 16 20 1 2 3 4 17 56 7 8 19 18 SCHEMA TIC DIAGRAMS Main PCB JCM461-MA1M Notes: 1. All capacitance values are indicated in " µ F" (p=10 -6 µ F). 2. All resistance values are indicated in " Ω " (k=10 3 Ω , M=10 6 Ω ).
— 14 — Console PCB JCM461-CN1M.
— 15 — Keyboard PCBs JCM617T-KY1M/KY2M.
— 16 — 13 15 14 12 1 2 8 3 4 5 6 7 9 10 12 21-2 21-1 16 17 18 19 20 21 22 11 27 25 24 26 23 EXPLODED VIEW.
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.
FOB Japan N Item Code No. Parts Name Specification Q N.R.Yen R Unit Price Main PCB N 11 6923 7120 PCB ass'y JCM461-MA1M M140225*1 1 7,920 A N LSI101 2012 0441 LSI, DSP HG51B227FB 1 530 A N LSI102.
FOB Japan N Item Code No. Parts Name Specification Q N.R.Yen R Unit Price N 6 6923 7200 Rubber button M240099-1 1 60 B N 7 6923 7190 Rubber button M240098-1 1 60 B N 8 6923 4740 Button contct rubber M.
MA0800951A.
An important point after buying a device Casio CTK-630 (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-630 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-630 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Casio CTK-630 you will learn all the available features of the product, as well as information on its operation. The information that you get Casio CTK-630 will certainly help you make a decision on the purchase.
If you already are a holder of Casio CTK-630, 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-630.
However, one of the most important roles played by the user manual is to help in solving problems with Casio CTK-630. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Casio CTK-630 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
