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GM SOUND KEYBOARD

CTK-680

CTK-680

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Summary of Contents for CTK-680

Page 1: ...GM SOUND KEYBOARD CTK 680 CTK 680...

Page 2: ...table 216 levels q 40 to 255 Chords 3 types CASIO Chords Fingered Full Range Chords Parts Rhythm bass Chord 1 Chord 2 Chord 3 adjustable on off tone volume pan effect send fine tune coarse tune expres...

Page 3: ...OUT Power supply 2 way Batteries Six D size batteries Battery life Approximately 5 hours on R20P SUM 1 manganese batteries AC adaptor AD 5 optional Auto power off Approximately six minutes after last...

Page 4: ...4M bit LSI12 MX23C2410MC 12CA54 WCK1 SLOP BCK D A Converter IC11 UPD6376GS Filter Q208 Main Volume Power Amplifier IC202 LA4598 CPU LSI14 HD6433294A33F Keyboard A0 A14 NMI Power Supply Circuit IC203 Q...

Page 5: ...2 C 3 2 D3 2 D 3 2 FI2 E3 1 F3 1 F 3 1 G3 1 G 3 1 A3 1 A 3 1 B3 1 SI2 E3 2 F3 2 F 3 2 G3 2 G 3 2 A3 2 A 3 2 B3 2 FI3 C4 1 C 4 1 D4 1 D 4 1 E4 1 F4 1 F 4 1 G4 1 SI3 C4 2 C 4 2 D4 2 D 4 2 E4 2 F4 2 F 4...

Page 6: ...C 5 D 5 F 5 G 5 A 5 F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6 D 3 C2 D2 E2 F2 G2 A2 B2 C3 D3 E3 B6 A6 G6 F6 E6 D6 C7 C 3 A 2 G 2 F 2 D 2 C 2 A 6 G 6 F 6 D 6 C 6 POWER SUPPLY CIRCUIT Th...

Page 7: ...ata using a 256k bit RAM The following table shows the pin functions of LSI11 Pin No Terminal In Out Function 1 P50 TXD Out MIDI signal output 2 P51 RXD In MIDI signal input 3 P52 SCK Out Reset signal...

Page 8: ...ad enable signal 29 32 Not used 33 RESB In Reset signal input 34 TESB In Not used Connected to 5 V 35 39 Not used 40 49 52 57 50 VCC2 In 5 V source 51 GND2 In Ground 0 V source 58 RA23 Out Not used 59...

Page 9: ...In Out Data bus for the effect RAM 131 GND6 In Ground 0 V source 132 134 Not used Connected to ground 135 136 Not used DSP LSI11 HG51B155FD 1 Effect RAM 256K bit LSI13 LC33832M 70 TLM Sound Source ROM...

Page 10: ...the time between first key input signal FI and second key SI from the keyboard the key controller detects key velocity The note number and its velocity data are read at regular intervals by the CPU Pi...

Page 11: ...MHz clock input 13 14 TMD TST In Not used Connected to ground 15 CKO Out Not used 16 GND In Ground 0 V source 17 XIN In Not used Connected to ground 18 XOUT Out Not used 19 TRES In Not used Connected...

Page 12: ...of the LSI is listed below Pin No Terminal In Out Function 1 K0C In Primary signal for KO0 KO15 2 APOB In APO signal from CPU 3 RDB In Read enable signal from CPU 4 WRB In Write enable signal from CPU...

Page 13: ...K C244 C152B C246 C472B AG Q207 2SC1740SR Q208 2SC1740SR C242 22 R236 AVDD AG AG R250 2 2K R248 R246 R244 C245 C152B C247 C472B AG C243 C223 H From DA Converter To Power Amp Main Volume Pin No Termina...

Page 14: ...l circuit When the power switch is pressed the CPU receives a low pulse of POWER signal The CPU provides APO signal to the power supply circuit and raises RESET signal to 5 V to reset the DSP the key...

Page 15: ...pin 4 4 APO signal JG connector pin 5 5 Reset signal UPD65611GB 019 38A pin 9 6 Key scan signal KC0 HG52E35P pin 44 7 Key scan signal KC1 HG52E35P pin 45 8 Key scan signal KC2 HG52E35P pin 46 9 Button...

Page 16: ...0 R75 C149 C89 C150 R83 R82 C74 C140 C144 C25 C27 C28 C31 C32 C33 C77 C15 C16 C14 Q11 Q12 C37 C11 C151 C12 JCM717 MA1M B LSI16 C95 IC13 MR11 X12 X11 LSI17 C104 C105 C106 C107 C108 C109 C110 C111 C112...

Page 17: ...IC DIAGRAMS MAIN PCB JCM717 MA1M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M MA3M 6 7 8 2 13 14 12 1 15 9 11...

Page 18: ...18 SUB PCB JCM716 MA2M...

Page 19: ...19 CONSOLE PCB M716 CN1M...

Page 20: ...20 KEYBOARD PCBs JCM617T KY1M KY2M...

Page 21: ...21 EXPLODED VIEW 14 13 12 12 4 5 16 17 19 21 22 23 20 7 9 8 6 18 24 15 3 1 R 1 R 3 R 2 11 10 10 2...

Page 22: ...r spare parts department if you need these parts for refurbish 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...

Page 23: ...03 205 2114 IC Voltage regulator S 81350HG 1 A Q201 2250 0742 Transistor 2SA1703S T AN T 1 A 2220 1409 Transistor 2SC1740SR TP T 4 A Q203 2250 1577 Transistor 2SA933ASTPR 1 A Q204 2250 1578 Transistor...

Page 24: ...28 3 1 C 15 6923 4980 Rubber button 711A M312122 2 1 B 16 6923 4990 Rubber button 711B M312123 2 1 B 17 6925 7250 Rubber button 711C M312124 3 1 B 18 6925 7260 Rubber button 711F M211727 5 1 B 19 6925...

Page 25: ...MA0100271A...

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