Casio Electronic Keyboard Ctk 220L Users Manual S/M
ctk220l 46b1f8d9-743f-48e5-b9b7-9d8200eebad5 Casio Electronic Keyboard CTK-220L User Guide |
2015-01-21
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CTK-220L 25 RHYTHMS 100 TONES POWER/MODE ON VOLUME SYNCHRO/ START/ ¢ FILL-IN STOP TEMPO ¢ 0 1 2 3 4 5 6 7 8 9 TONE SONG BANK STEP 1 STEP 2 STEP 3 DEMO 20 SONG BANK MULTI FUNCTION DISPLAY 20 SONG BANK KEYBOARD FINGERED CASIO CHORD NORMAL OFF ¢ ¢ TRANSPOSE/TUNE RHYTHM PART SELECT TONE RHYTHM SONG BANK CTK-220L ELECTRONIC KEYBOARD CONTENTS Page Specifications ................................................................................................................................... 1 Block Diagram .................................................................................................................................. 2 Circuit Description ............................................................................................................................ 3 Major Waveforms ............................................................................................................................. 6 Printed Circuit Boards ...................................................................................................................... 7 Schematic Diagrams ........................................................................................................................ 8 Exploded View ................................................................................................................................ 14 Parts List ........................................................................................................................................ 15 SPECIFICATIONS GENERAL Number of keys: 49 Polyphonic: 12-note Preset tones: 100 Transpose: F# ~ C ~ F: half-note Auto-rhythms: 25, Tempo: Adjustable, 216 steps (40 ~ 255), initial value: 120 Accompaniment: CASIO Chord, Fingered, Fill-in pattern, Synchro start Song bank: 20-tune Digital volume control: 10 steps (0 ~ 9), initial value: 7 Tuning control: 440 Hz ± 50 cents Built-in speakers: 10 cm dia. × 1 (Output: 2 W) Terminals: Headphone Jack, Stereo mini Jack [Output impedance: 70 q, Output voltage: 3.6 V (rms) MAX] Auto power off: Approximately 6 minutes after the last operation Power source: 2-way AC or DC source AC: Required optional AD-5 AC adaptor DC: 6 AA size batteries Power consumption: 7.7 W Dimensions (HWD): 85 × 771 × 324 mm (3-3/8 × 30-3/8 × 12-3/4 inches) Weight: 3.4 kg (7.5 lbs) excluding batteries ELECTRICAL Current drain with 9 V DC: No sound output Maximum volume with white keys C1 to G2 pressed in Synth-Lead 1 Volume: Maximum 160 mA ± 20 % 840 mA ± 20 % Phone output level (Vrms with 8 ohm load): with key C2 pressed in Synth-Lead 1 98 mV ± 20 % Speaker output level (Vrms with 4 ohm load): with key F4 pressed in Synth-Lead 1 2000 mV ± 20 % Minimum operating voltage: 6.3 V —1— BLOCK DIAGRAM 7 seg. LED LED Latch IC2, IC3 MD0 ~ MD7 Phone/Output KO8 ~ KO11 —2— Amp. IC301 LA4598 DC+9 V IN Power Supply Circuit Q301 ~ Q304 D334, D336 Buttons Filter Q305 CPU LSI1 MSM 6755B-13 KI0 ~ KI7 KO0 ~ KO7 LX0 ~ LED Driver LX7 APO Q5 ~ Q8 LY1 ~ LED Driver LY7 Q1 ~ Q4 PG X1, Q11 Reset IC IC1 Illuminant Keyboard CIRCUIT DESCRIPTION KEY MATRIX KI0 KI1 KI2 KI3 KI4 KI5 KI6 KI7 KO0 C2 G#2 E3 C4 G#4 E5 C6 KO1 C#2 A2 F3 C#4 A4 F5 KO2 D2 A#2 F#3 D4 A#4 F#5 KO3 D#2 B2 G3 D#4 B4 G5 KO4 E2 C3 G#3 E4 C5 G#5 KO5 F2 C#3 A3 F4 C#5 A5 KO6 F#2 D3 A#3 F#4 D5 A#5 KO7 G2 D#3 B3 G4 D#5 B5 KO8 0 1 2 3 4 Start/ Stop Up Volume Down KO9 5 6 7 8 9 Down Volume Down Synchro/ Fill-In K10 Tone Rhythm Song Bank Part Select One Key One Key K11 Step-1 Step-2 Step-3 Fingered Casio Chord Normal Off LX0 LX1 LX2 LX3 LX4 LX5 LX6 LX7 LY1 D4 D3 C3 C2 G#2 F#2 D#2 C#2 LY2 C4 E3 B2 D2 A#2 C#3 D#3 F#3 LY3 B3 F3 A2 E2 D#4 C#4 A#3 G#3 LY4 A3 G3 G2 F2 C#5 A#4 G#4 F#4 LY5 E4 C5 D5 B5 D#5 F#5 G#5 A#5 LY6 F4 B4 E5 A5 C6 LY7 G4 A4 F5 G5 Demo LED MATRIX NOMENCLATURE OF KEYS C#2 D#2 C2 D2 E2 F#2 G#2 F2 G2 A#2 A2 B2 C#3 D#3 C3 D3 E3 F#3 G#3 F3 G3 A#3 A3 C#4 D#4 B3 C4 D4 —3— F#4 G#4 E4 F4 G4 A#4 A4 C#5 D#5 B4 C5 D5 F#5 G#5 E5 F5 G5 A#5 A5 B5 C6 CPU (LSI1: MSM6755B-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. The CPU also controls key input, button input and LED driving. The following table shows the pin functions of LSI1. Pin No. 1 2 3~5 Terminal MA14 MWEB — In/Out — Out — Function Not used. Clock for LED latches Not used. 6 7 ~ 19 20 ~ 27 28, 29 30 31 32, 33 MA0 MA1 ~ MA11 MD0 ~ MD7 NC1, NC2 DGND DVCC XTLO, XTLI Out — Out — In In In/Out 7-seg. LED drive signal Not used. 7-seg. LED drive signal Not used. Ground (0 V) source +5 V source 20 MHz clock input/output 34 35 NC3 RSTB — In 36 37 38 39 40 41 P24/RXD P25/TXD NMI APO NC4 REFH — — In Out — Out Not used. Connected to +5 V. Not used. Power ON signal input. Connected to +5 V. APO (Auto Power Off) signal output Not used. Terminal for the internal DAC 42, 43 44 45 46 47 NC5, NC6 DAOR NC7 AVdac DAOL — Out — In Out Not used. Right channel sound waveform output Not used. +5 V source for the internal DAC and ADC Left channel sound waveform output 48 49 50 REFL AGdac AGadc Out In In Terminal for the internal DAC and ADC Ground source for the internal DAC Ground source for the internal ADC 51 52 53 54 55, 56 57 58 ~ 65 ANI AVadc NC8 MOD0 MOD1, MOD2 P40 KI0/P30 ~ KI7/P37 — In — In In In In 66 ~ 73 74 ~ 77 78 79 80 ~ 95 96 97 ~ 100 KO0/P50 ~ KO7/P57 KO8/P20 ~ KO11/P23 NC9 LVCC LX0 ~ LX7, LY0 ~ LY7 LGND MA18 ~ MA15 Out Out — In Out In — Not used. Reset signal input Not used. Connected to ground. +5 V source for the internal ADC Not used. Mode selection terminal. Connected to +5 V. Mode selection terminal. Connected to ground. APO cancellation signal Terminals for key/button input signal Terminals for key scan signal Terminals for button input signal Not used. +5 V source LED drive signal Ground source Not used. —4— FILTER BLOCK Since the sound signal from the CPU is a stepped waveform, the filter block is added to smooth the waveform. Amp. IC301 Filter Block Q305 CPU LSI1 POWER AMPLIFIER (IC301: LA4598) The power amplifier is a two-channel amplifier with standby switch. The following table shows the pin function of IC301. Pin No. 1 Terminal Power GND In/Out In Function 2 3 4 Ch1 B.S. Ch1 OUT VCC — Out In Terminal for a bootstrap capacitor Channel 1 output +9V source 5 6 7 8 Ch1 N.F. Ch1 IN D.C. Pre GND In In — In Negative feedback input Channel 1 input Terminal for a decoupling capacitor Ground (0V) source 9 10 11 12 13 14 Stand by Ch2 IN Ch2 N.F. Ch2 OUT Ch2 B.S. NC In In In Out — — Power control signal input. 0 V: Off, +9 V: On Channel 2 input Negative feedback input Channel 2 output Terminal for a bootstrap capacitor Not used Ground (0V) source LED DRIVING 7-segment LED Keyboard LEDs LVDD La ~ Lg LED Latch IC3 (Segment) LX0 ~ LX7 MD0 ~ MD3 CPU Q5 ~ Q8 MWEB LSI1 Q2 ~ Q4 LED Latch IC2 MSM6755B-13 MD4 ~ MD7 MA0 LY1 ~ LY7 Q1 ~ Q4 (Common) LG —5— MAJOR WAVEFORMS 1 3 2 1 APO signal MSM6755B-13 pin 39 3 Clock MSM6755B-13 pin 32 2 Reset signal RH5VL40AA pin 1 5 4 6 4 Sound signal JH connector pin 2 5 LED drive signal LX0 MSM6755B-13 pin 88 6 LED drive signal LY1 MSM6755B-13 pin 81 Tone: Whistle (59) Key : A4 Key: D4 —6— Main PCB JCM446-MA1M 6 5 3 Bottom view —7— 2 AVDD R320 R318 R302 1 Top view C328 JA3 C301 JA5 JA4 VC LED301 DVDD JA2 100 C352 75 L303 R333 R331 5 5 5 L304 L301 5 JA1 L302 L305 J302 D304 R303 R301 E VCC Q301 5 5 5 R317 B R316 125 150 100 5 R335 C355 150 R372 C330 R371 Q303 E R321 75 D334 R374 Q302 B R319 5 B 225 200 R370 R373 R C336 E R324 5 C331 R322 R369 C372 D302 B D335 C333 LVDD C332 Q310 E E 175 R368 C374 C342 100 C350 C373 R323 B Q304 5 D308 C371 250 125 R325 R326 225 C344 C341 IC301 R339 C349 R365 1 5 D336 C334 R388 5 5 R327 C348 5 5 5 C307 C306 C339 D310 D308 D306 D307 D305 D309 C337 C345 C359 R348 R343 D314 D312 D311 D313 B C347 R310 5 R311 125 R309 R338 C361 R353 R352 R342 C363 JH Q312 R366 B D320 D319 D318 D317 D316 D315 5 C346 Q305 E D323 D322 D321 125 R354 10 E D324 D326 D325 D329 1 C356 R 5 75 JJ 75 75 75 C364 C335 D328 D327 D301 D330 12 445B UJW5 Sub PCB KDM445-MA2M PRINTED CIRCUIT BOARDS J301 C368 D331 125 100 100 5 D333 GR GR PS 0 D332 Top view 4 0 SCHEMATIC DIAGRAMS Main PCB JCM446-MA1M 2 5 4 Note: KI signals are renamed. (e.g. KI0 on the keyboard PCB ⇒ KI1 on the main PCB) NO USE FOR CTK-330 Connected to KDM445-LD2M NO USE FOR CTK-330 NO USE FOR CTK-330 Connected to KDM4910K-KY2M 7 6 —8— 1 3 Sub PCBs KDM445-MA2M/MA3M —9— Keyboard PCBs KDM4910K-KY1M/KY2M — 10 — LED PCB KDM446-LD1M — 11 — LED PCB KDM445-LD2M PCB NAME — 12 — LED PCB KDM446-LD3M PCB NAME LED PCB KDM445-LD4M PCB NAME — 13 — EXPLODED VIEW 16 15 6 5 9 17 7 8 R-1 R-2 12 11 19 13 14 18 10 1 2 3 4 R-3 R-4 — 14 — PARTS LIST CTK-220L Notes: This parts list does not include the cosmetic parts, which parts are marked with item No. "R-X" in the exploded view. Contact our spare parts department if you need these parts for refurbish. 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. Item Code No. Parts Name Main PCB 6925 6160 Main PCB ass'y (MA1M) 2012 4690 LSI, CPU 2105 5922 IC 2105 4452 IC 2105 5796 IC 2259 2555 Transistor, Chip, Digital 2259 2562 Transistor, Chip, Digital 2259 2646 Transistor, Chip, Digital 2259 2548 Transistor, Chip, Digital 2252 1239 Transistor, Chip 2390 2576 Diode, Chip, Schottky 2390 1820 Diode, Chip 2590 1526 Oscillator, Ceramic 2370 1141 LED, 7-seg. Sub PCB ass'y 6925 6173 Sub PCB ass'y 2 2114 2891 IC IC301 2250 0742 Transistor Q301 Q302, Q305 2220 1409 Transistor Q303 2253 0581 Transistor Q304 2253 0455 Transistor 2390 1344 Diode D304 2360 1729 Diode, Zener D331 2390 0378 Diode D333 2390 1323 Diode D334, D336 2360 2002 Diode, Zener LED301 2370 1106 LED J301 3501 7049 Jack, Power J302 3501 4382 Jack, Phone Keyboard PCBs 2301 0101 Diode 3 6925 6180 Keyboard PCB ass'y LED PCBs 2370 1323 LED (for white key) 4 6925 6183 LED PCB ass'y LD1,2M 2370 1330 LED (for black key) 5 6925 1340 LED PCB ass'y LD3M 6 6925 6184 LED PCB ass'y LD4M Mechanical Parts 7 6925 2160 Battery cover 8 6925 6261 Slide knob 9 6925 5380 Display plate 10 6909 5890 Slide contact 11 3831 1072 Speaker 12 6925 6370 Rubber button 13 6906 8371 Rubber button 14 6925 6300 Rubber button 15 6925 1700 White key set, LSK-CB 16 6925 1710 White key set, LSK-CS 17 6925 1720 Black key set, LSK-10P 18 6923 2390 Key contact rubber, 18 19 6922 4000 Key contact rubber, 31 Other 6916 7880 Music stand 1 LSI1 IC1 IC2 IC3 Q1 - Q4 Q5 - Q8 Q9 Q10 Q11 D1 D3 X1 LED1 — 15 — Specification Q R M240438*3 MSM6755B-13 RH5VL40AA-T1 HD74HC174FPTR HD74HC4511FPTR UMW1NTL UMS1NTL UMH3NTN DTC143EUAT106 2SC4081-T106Q RB501V-40TE-17 1SS355TE-17 EFO-EN2005C4 SL-9352-60 1 1 1 1 1 4 4 1 1 1 1 1 1 1 B A A A A A A A A A B B B B M140476*2 LA4598 2SA1703S,T-AN-T 2SC1740SR-TP-T 2SD1858R,S-TV6-T 2SD1762E.F 1SS133T-77-T MTZJ5.1A-T77-T 1SR139-100T-32-T RB100A-T32-T MTZJ5.6B-T77-T MPR3338S-B99 HEC2305-01-330 HSJ2000-01-010 1 1 1 2 1 1 31 1 1 1 2 1 1 1 B A A A A A B B B B B B B B 1S2473T-77-T M140449*2 49 B 1 B KR3301X-J344K M140473*1 KR3302X-J345K M240428*1 M240500*1 29 1 20 1 1 B C B C C M340490*1 M311859A-6 M340534-2 CSB-12D S10JA49A M240374-3 M240414-2 M240413-2 M340489*1 M340489*2 M140369-1 M240025-1 M111765-1 1 1 1 1 1 1 1 1 3 1 2 1 1 B B C B B B B B A A A A A M310827-1 1 C Nov, 1996 MA1100761A
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