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MIDI: 16-timbre multi-timbre receive (General MIDI Level 1) 12 cm diameter × 2 (output: 5 W + 5 W) Built-in speakers: Input/Output Jacks Power supply: 12 V DC Headphones: Stereo standard jack Output impedance: 100 Ω Output jacks: Output voltage 2.5 V (RMS) MAX Assignable Jack: Standard jack (sustain, sostenuto, soft, rhythm start/stop) MIDI terminals:...
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CPU (LSI14: HD6433294A19F) The 16-bit CPU contains a 32k-bit ROM, a 1k-bit RAM, seven 8-bit I/O ports, an A/D convertor and MIDIl interfaces. The CPU accesses to the working storage RAM, the DSP and the key touch LSI. The CPU interprets MIDI message using the working storage RAM.
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Pin No. Terminal I n / O u t Function 1 ~ 8 CD0 ~ CD7 In/Out Data bus 9, 10 CE1, TRSB — Not used GND7 Ground (0 V) source CK16 Terminal for 24.576 MHz clock check point VCC6 +5 V source Clock input.
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Pin No. Terminal I n / O u t Function EOEB Read enable signal output for the effect RAM VCC7 +5 V source ECEB Chip select signal output for the effect RAM 113 ~ 117 ED11 ~ ED15 — Not used VCC4 +5 V source GND4...
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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 the right and left channels. The DAC converts the data into analog waveforms by each channel and output them separately. The following table shows the pin functions of IC11.
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The following table shows the pin functions of LSI16. Pin No. Terminal I n / O u t Function REQB Not used. FI8 ~ FI10, 2, 3, 60 ~ 63 Not used. Connected to +5 V. SI8 ~ SI10 +5 V source CRDB Read enable signal input CWRB...
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POWER AMPLIFIER (IC201: LA4620) The power amplifier is a two-channel amplifier with standby switch. Boot11 IN11+ Input Pre-drive Power OUT11 Amp. Amp. Amp. IN11– – RL Short PoGND1 Protector – IN12– Input Pre-drive Power OUT12 Amp. Amp. Amp. Boot12 Terminal Pop Noise Ripple Protection...
MAJOR WAVEFORMS A 1 µs A 1 µs A . 1 s A . 200 ms ˜ ˜ CH1: 5 V CH2: 5 V CH1: 5 V CH2: 5 V CH1: 5 V CH2: 5 V CH3: 5 V CH1: 20 mV CH2: 20 mV 1 Voltage VDD 3 Power ON signal PSW...
PARTS LIST WK-1500 Notes: Prices and specifications are subject to change with- out prior notice. As for spare parts order and supply, refer to the "GUIDEBOOK for Spare parts Supply", published seperately. The numbers in item column correspond to the same...
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Item Code No. Parts Name Specification Main PCB 6925 3130 Main PCB ass'y, M717-MA1M M140443*1 LSI2 2012 4536 LSI, ROM MX23C2410MC-12CA51 LSI3 2012 0777 LSI, RAM LC33832M-70-TLM LSI7 2012 4298 LSI, UPD65611GB-019-3BA LSI11 2012 1316 LSI, DSP HG51B155FD-1 LSI14 2012 4550 LSI, CPU HD6433294A19F LSI15 2012 4291 LSI, RAM...
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Item Code No. Parts Name Specification 2765 1141 Volume RK1631110-50KB 6925 3570 Knob, Bender M31488-3 Keyboard unit 6922 2720 White key set, LT M312118*1 6923 7900 White key set, LT76R M340231*1 6923 7910 White key set, LT76L M340230*1 6922 2740 Black key set, LT10P M111726-1 6923 7930 Black key set, LT-76-3P M111726-3...