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CONTENTS

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Block Diagram  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Circuit Description   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Troubleshooting   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

PCB View and Major Waveforms  . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Schematic Diagrams  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

IC Lead Identification   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Exploded Veiw  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Parts List   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Summary of Contents for PK-5

Page 1: ...ELECTRIONIC KEYBOARD PK 5 without price ...

Page 2: ...CONTENTS Specifications 1 Block Diagram 2 Circuit Description 3 Troubleshooting 4 PCB View and Major Waveforms 5 Schematic Diagrams 6 IC Lead Identification 7 Exploded Veiw 8 Parts List 9 ...

Page 3: ... Demonstration Tune Classical Medley Built In Speaker 6 5 cm dia 0 5 W Input Rating 1 pec Power Source 4 AA size dry batteries Battery life Approx 3 hours SUM 3 R6P Approx 6 hours AM 3 LR6 Power Consumption 0 7 W Dimentions 41 x 375 x 115 mm HWD 1 5 8 x 14 3 4 x 4 1 2 inches HWD Weight 0 4 kg 0 9 lbs excluding batteries Electrical Current Drain with 6V DC No Sound Output 35 mA 20 Maximum Volume 11...

Page 4: ...ature of Keys F 3 G 3 A 3 C 4 D 4 F 4 G 4 A 4 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 KO0 KO6 KI0 KI7 Keyboard Switches Oscillator X1 Amplifier AN8053N IC1 Speaker CPU MSM6387 03 LSI1 2 ...

Page 5: ...O4 Tone 0 Tone 1 Tone 2 Tone 3 Tone 4 Select KO5 Tone 5 Tone 6 Tone 7 Tone 8 Tone 9 Stop KO6 Demo Tempo Up Tempo Down Volume Up Volume Down Pin No Terminal In Out Function 1 2 TEST1 TEST2 Not used Connected to ground 3 RESET In Power ON reset input On 6 V Off 0 V 4 AVDD In 5 V sorce for the built in DAC 5 OUT Out Sound waveform output 6 AGND In Ground 0 V source for the built in DAC 7 GND In Groun...

Page 6: ...C NC NC PRE GND 4 Checkpoint Pin 13 should have 5 V An amplified waveform should be observed at pin 1 Voltage at pin 3 of the CPU should be raised from 0V to 5 V when the power switch is turned on Switch contact Pins 24 30 should provide pulses Pin 5 should provide a sound waveform when a key is pressed Pins 8 and 9 of the CPU should receive an oscil lation signal Nature of Trouble No sound at all...

Page 7: ...A1M PCB 5 2 1 3 4 5 Clock pulse COSO MSM6387 03 Pin 9 Key scan signal KO0 MSM6387 03 Pin 30 Key scan signal KO1 MSM6387 03 Pin 29 Sound output MSM6387 03 Pin 5 Tone Piano Key G4 Power Amp output AN8053N Pin 1 Tone Piano Key G4 Volume Max ...

Page 8: ... 6 SCHEMATIC DIAGRAM 1 2 3 4 5 6 0 0 5 0 5 0 5 0 5 0 5 0 5 0 5 5 2 4 8 2 5 2 2 2 2 4 9 0 0 0 0 0 0 0 0 5 2 0 0 0 0 3 9 3 1 4 0 4 0 M3210 MA1M PCB ...

Page 9: ...DD OUT AGND COSI COSO VDD KI0 KI1 KI2 KI3 KI4 1 2 3 7 4 5 6 8 9 10 11 12 13 14 15 KO0 KO1 KO2 KO6 KO3 KO4 KO5 KO7 KO8 KO9 KO10 KO11 KI7 KI6 KI5 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 SPO NC SPG PC 1 PC 2 SPI SPM VREF VCC NC CONT VREG NC NC NC PR GND IC1 AN8053N IC LEAD IDENTIFICATION 7 ...

Page 10: ...EXPLODED VIEW 8 7 A 3 8 9 0 4 5 6 1 C 2 B D ...

Page 11: ...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 PARTS LIST PK 5 ...

Page 12: ...on film resistor R 20 1 5K J T23 T 1 20 C A R7 2606 1169 Carbon film resistor R 20 100 J T23 T 1 20 C A X1 2590 0742 Ceramic oscillator EFO GC2175C3 1 1 A B 4317 4031 Blank PCB M3205 MA1M M111705A 1 1 1 C B 6917 1762 Battery spring M410913B 1 1 20 B A 6921 6211 Battery spring M412171A 1 1 20 B A 1 PCB ass y M3205 MA1M M211679 1 1 1 B Mechanical Parts 2 3831 0525 Speaker KUE 65RGF02A 1 1 B C 3 6909...

Page 13: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926 May 1994 ...

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