Casio WK-1500, Service Manual

Page 1: ...GM SOUND KEYBOARD WK 1500 WK 1500 PITCH BEND ...

Page 2: ...presets 50 types Break beat Melodycomp Shadow Drum Free Session Registration memory 10 Tone changes tempo setting auto accompaniment volume setting mode layer on off Mixer settings effect type split on off rhythm type auto accompaniment rhythm assignment pad type chord fingering method touch response setting MIDI settings including assignable jack settings Magical Preset type Mixer Number of chann...

Page 3: ...tion Power source 2 way AC or DC source AC AC adaptor DC 6D size dry batteries Power consumption 18 W Dimensions HWD 116 1 30 2 11 0 mm 45 3 4 11 7 8 4 5 16 inches Weight 6 8 kg 15 0 lbs excluding batteries ELECTRICAL Current drain with 9 V DC No sound output 480 mA 20 Maximum volume with 10 polyphonic notes in tone No 081 1720 mA 20 Volume maximum Phone output level Vrms with 8 load each channel ...

Page 4: ...TC5316200CF C112 WCK1 SLOP BCK D A Converter LSI104 UPD6376GS Filter IC101 Main Volume Power Amplifier IC402 LA4598 CPU LSI14 HD6433294A19F Keyboard A0 A14 POWER Power Supply Circuit IC401 Q401 Q405 VCC AVDD VDD LVDD DVDD VC Effect RAM 256K bit LSI103 LC33832M 70 D0 D7 Speakers Output A0 A14 A0 A3 A0 A2 7 seg LED LEDs LED driver Q104 Q111 KO Signal Generator IC102 TC74HC174AF La Lg Lp MIDI OUT Res...

Page 5: ... C4 1 C 4 1 D4 1 D 4 1 E4 1 F4 1 F 4 1 SI4 B3 2 C4 2 C 4 2 D4 2 D 4 2 E4 2 F4 2 F 4 2 FI5 G4 1 G 4 1 A4 1 A 4 1 B4 1 C5 1 C 5 1 D5 1 SI5 G4 2 G 4 2 A4 2 A 4 2 B4 2 C5 2 C 5 2 D5 2 FI6 D 5 1 E5 1 F5 1 F 5 1 G5 1 G 5 1 A5 1 A 5 1 SI6 D 5 2 E5 2 F5 2 F 5 2 G5 2 G 5 2 A5 2 A 5 2 FI7 B5 1 C6 1 C 6 1 D6 1 D 6 1 E6 1 F6 1 F 6 1 SI7 B5 2 C6 2 C 6 2 D6 2 D 6 2 E6 2 F6 2 F 6 2 FI8 G6 1 G 6 1 A6 1 A 6 1 B6 1...

Page 6: ... F 4 G 4A 4 C 5 D 5 F 5 G 5A 5 C 6 D 6 F 6 G 6A 6 C 7 D 7 F 7 E1 G1 A1 B1 C2 D2 E2 F2 G2 A2 B2 C3 D3 E3 F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6 D6 E6 F6 G6 A6 B6 C7 D7 E7 F7 G7 KI1 KI2 KI3 KI4 KI5 KI6 KI7 KO0 SPLIT LAYER CH7 CHORD2 CH8 CHORD3 CH9 BASS CH10 RHYTHM KO1 TRANSPOSE TUNE MAGICAL PRESET MIDI RHYTHM TONE PAD KO2 CH4 LOWER2 CH5 PAD CH6 CHORD1 CH2 UPPER2 CH3 LOWER1 KO3 3 6 ...

Page 7: ...a 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 output 4 RESET In Reset signal input 5 NMI In Power ON trigger signal input 6 VCC In 5 V source 7 STBY In Standby signal input Connected to 5 V 8 VSS In Ground 0 V source 9 10 XTAL EXTAL In 20 MHz cloc...

Page 8: ...ead 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 RA22 Out Chip select signal for the sound source ROM 60 RA21 Out Not used 61 73 75 82 74 GND5 In Ground 0 V source 83 WOK2 Out Not used 84 VCC3 In 5 V source 85 GND3 In Ground 0 V source 86 WOK1 Out...

Page 9: ...K LRCK CCSB LSIB RDAB WRAB RESET CRDB CWRB RESB KO signal generator LSI17 UPD65611GB Block diagram of DSP and DAC circuit Pin No Terminal In Out Function 106 EOEB Out Read enable signal output for the effect RAM 108 VCC7 In 5 V source 111 ECEB Out Chip select signal output for the effect RAM 113 117 ED11 ED15 Not used 118 VCC4 In 5 V source 119 GND4 In Ground 0 V source 120 122 ED8 ED10 Not used 1...

Page 10: ...rence voltage terminal 11 L OUT Out Left channel sound waveform output 12 A GND In Ground 0 V source for the left channel 13 LRCK In Word clock input 14 LRSEL In Not used Connected to ground 15 SI In Sound data input 16 CLK In Bit clock input DAC IC11 UPD6376GS The DAC receives 16 bit serial data output from the DSP The data contains digital sound data of the melody chord bass and percussion for t...

Page 11: ... used Connected to ground 20 23 25 28 CD0 CD7 In Out Data bus 24 GND In Ground 0 V source 29 31 CA0 CA2 In Address bus 32 VCC In 5 V source 33 39 41 43 FI0 FI9 53 55 57 63 SI0 SI9 40 VCC In 5 V source 44 47 49 52 KC0 KC7 Out Key scan signal 48 56 GND In Ground 0 V source 64 VCC In 5 V source 2 3 60 63 In In Not used Connected to 5 V Key input signal input The following table shows the pin function...

Page 12: ...tor RL Short Protector Terminal Protection Circuit Pop Noise Prevention Circuit Ripple Filter IN11 IN11 IN12 IN21 IN21 IN22 NC DC MUTE ADJ Boot11 OUT11 PoGND1 OUT12 Boot12 VCC1 Boot21 OUT21 PoGND2 OUT22 Boot22 VCC2 PriGND RESET CIRCUIT When batteries are set or an AC adapter is connected the reset IC provides a low pulse to the CPU The CPU then initializes its internal circuit and clears the worki...

Page 13: ...94A19F pin 5 4 APO signal HD6433294A19F pin 59 5 Reset signal HD6433294A19F pin 3 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 scan signal KO0 JE connector pin 6 0 Button scan signal KO1 JE connector pin 7 A Button scan signal KO2 JE connector pin 9 B Word clock WOK1 UPD6376GS pin 13 C Data S1 Note OFF UPD6376GS pin 15 D...

Page 14: ...3 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 C113 C114 C115 C116 C117 C118 C119 C120 C121 C122 C123 C124 C125 C126 C127 C128 C129 C130 C131 JB 14 1 14 JA 1 D13 FB56 FB57 R84 R150 R67 C75 C13 R140 R27 Q15 C88 C91 C90 C92 C132 D20 R74 R70 C97 MR14 MR12 R40 R39 R38 R37 R36 R35 R34 R33 R32 R31 R28 R29 R30 C52 FB...

Page 15: ... 15 SCHEMATIC DIAGRAMS MAIN PCB JCM717 MA1M 4 6 7 8 9 10 11 13 14 12 1 2 5 3 ...

Page 16: ... 16 SUB PCB KDM717 MA2M 16 15 ...

Page 17: ... 17 CONSOLE PCBs KDM717 CN1M CN2 CN3 CN4 ...

Page 18: ... 18 KEYBOARD PCBs JCM762T KY1M KY2M KY3 ...

Page 19: ... 19 EXPLODED VIEW 1 2 3 4 4 4 5 6 7 8 9 11 10 12 14 13 15 16 17 18 19 20 21 22 23 24 25 26 26 26 26 27 28 29 30 31 31 26 32 R 3 R 2 R 1 ...

Page 20: ...re 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 PARTS LIST WK 1500 ...

Page 21: ...SQ TP T 1 A Q202 Q204 2251 0469 Transistor 2SB1237Q R TV6 T 2 A 2220 1387 Transistor 2SC1740SQ TP T 5 A Q207 2251 0672 Transistor 2SB1548 P CS 1 A Q208 2253 0455 Transistor 2SD1762E F 1 A D201 2390 1463 Diode Schottky SB20 03B 1 B D202 D204 2390 0371 Diode DSK10B BT T 3 B 2390 1344 Diode 1SS133T 77 T 5 C D207 2360 1085 Diode Zener HZS6B1LTD T 1 B D209 2360 2261 Diode Zener RD5 1JSB3 T1 T 1 B D211 ...

Page 22: ...6 6925 3540 Gasket 717L M240455 1 1 C 17 6925 3550 Gasket 717C M240454 1 2 C 18 6925 3560 Gasket 717R M240453 1 1 C Panel unit 19 6925 3350 Button Rubber M240452 1 2 B 20 6925 3360 Button Rubber M340497 1 1 B 21 6925 3370 Button Rubber M340498 1 1 B 22 6925 3380 Button Rubber M340499 1 1 B 23 6925 2510 Button Rubber M312081 4 1 B 24 6922 2660 Button Rubber M312088 1 1 B 25 6923 4980 Button Rubber ...

Page 23: ...MA0900761A Sep 1996 ...