GEM Powerstation SK760 Service Manual Download Page 21 | Manualshive

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Summary of Contents for Powerstation SK760

Page 1: ...tors are 25Vdc rated voltage unless otherwise specified All resistors are 1 8 unless otherwise specified All switches shown in the OFF position All DC voltages measured to ground with a voltmeter 20KO...

Page 2: ...st remove a near natural key Note To remove a sharp key before Unlock the key appling not much strenght Remove the key return spring 3 1 2 Keyboard Disassembling Instructions TP9 SK760 NOTE To remove...

Page 3: ...THIS DOCUMENT WITHOUT Boccato Riccobelli Pannelli 550169 5 1 1 18 02 99 SK760 Layout for descriptions see the REF column on Spare Part List further on this manual 1 2 3 4 5 6 7 18 8 9 10 13 13 13 12 1...

Page 4: ...DOCUMENT WITHOUT Boccato Riccobelli Pannelli 550170 5 1 1 18 02 99 SK880 Layout for descriptions see the REF column on Spare Part List further on this manual 53 2 3 54 55 6 7 56 8 9 10 13 13 13 12 11...

Page 5: ...3 6 84 CN2 26 37 CN5 CN4 CN2 Pcb 315113 CN1 CN3 CN5 CN4 CN2 CN1 CN12 90 91 CN1 8MB DRAM 92 93 VR101 Pcb 315112 TO DISPLAY CN3 82 CN5 TO DISPLAY CN4 CN6 81 80 3 70 41 71 MOD ADJ PITCH ADJ 72 73 74 38 7...

Page 6: ...SERVED NO COPIES WRITTEN CONSENT BY GENERALMUSIC OR REPRODUCE THIS DOCUMENT WITHOUT BOCCATO RICCOBELLI PANNELLI 550172 5 1 1 22 02 99 SK760 SWT ASSEMBLY for descriptions see REF column on Spare Part L...

Page 7: ...e REF column on Spare Part List further on this manual NATURAL KEYS AFTER TOUCH SHARP KEYS AFTER TOUCH CN Pcb 315119 CN CN CN16 CN2 CN4 CN11 Pcb 315092 1 VR1 CN5 CN7 CN4 CN1 Pcb 315150 CN15 CN13 VR1 2...

Page 8: ...BY GENERALMUSIC OR REPRODUCE THIS DOCUMENT WITHOUT BOCCATO RICCOBELLI PANNELLI 550174 5 1 1 23 02 99 SK880 SWT ASSEMBLY for descriptions see REF column on Spare Part List further on this manual CN3 CN...

Page 9: ...ARE RESERVED NO COPIES BLOCK DIAGRAM SK760 SK880 TRF G Pannelli N Riccobelli G Boccato 25 02 99 5 550175 1 1 PCB APP CKD DRW REV DWG DISK PART GENERALMUSIC S p A ITALY WRITTEN CONSENT BY GENERALMUSIC...

Page 10: ...J J J J J 10 10 10 10 10...

Page 11: ...Layouts DRW BOCCATO APP PANNELLI REV 25 02 99 DISK 5 PART 1 1 CKD RICCOBELLI ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT WRITTEN CONSENT BY GENERALMUSIC CONTROLS MIDI I O BOAR...

Page 12: ...d and Analog I O Board Pcb Layouts DRW BOCCATO APP PANNELLI REV 25 02 99 DISK 5 PART 1 1 CKD RICCOBELLI DWG 315151 315117 ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT WRITTEN C...

Page 13: ...13 13 13 13 13 J J J J J...

Page 14: ...5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CN3 1 3 2 5 4 7 6 9 8 AC2 220P X8 1 3 2 5 4 7 6 9 8 AC1 220P X8 22 23 24 25 26 27 28 29 1 2 3 4 5 6 7 8 9 10 11 12 13 15 17 18 20 19 38 37 36 35 34 33 32 31...

Page 15: ...15 15 15 15 15 J J J J J...

Page 16: ...0KB 1 2 3 4 SW5 1 2 3 4 SW10 1 2 3 4 SW15 1 2 3 4 SW20 C31 100N C39 100N C15 100N 1 2 3 4 5 6 7 8 9 CN1 R14 47K 1 2 3 4 SW6 2 1 4 3 SW23 2 1 4 3 SW27 2 1 4 3 SW30 2 1 4 3 SW35 1 2 3 4 SW11 1 2 3 4 SW1...

Page 17: ...ard Pcb Layouts DRW BOCCATO APP PANNELLI REV 28 07 97 DISK 5 PART 1 1 CKD RICCOBELLI ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT WRITTEN CONSENT BY GENERALMUSIC CONTROLS PANEL...

Page 18: ...RDS 550185 BOARD F2 F3 H D LED BASS ACC 1 3 25 02 99 ACC 4 6 LOWER 2 LOWER 1 UPPER 2 UPPER 1 M VOL MC LINE CONTRAST DIAL INTRO JAZZ US TRAD TRAD 1 TRAD 2 LATIN 1 CHASSIS GROUND LATIN 2 MOD CENTER ADJ...

Page 19: ...l Board Pcb Layout SWT DRW BOCCATO APP PANNELLI REV 25 02 99 DISK 5 PART 1 1 CKD RICCOBELLI ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT WRITTEN CONSENT BY GENERALMUSIC DWG 315...

Page 20: ...J J J J J 20 20 20 20 20...

Page 21: ...21 21 21 21 21 J J J J J...

Page 22: ...SK760 880 Cpu Sound Generator Board Pcb Layout DRW BOCCATO APP PANNELLI REV 25 02 99 DISK 5 PART 1 1 CKD RICCOBELLI ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT WRITTEN CONSENT...

Page 23: ...J1 Set the jumper as follow 1 2 A if Buffer modules are installed 2 3 B if SIMM DRAM modules are installed note the buffer modules are supplied with A V Vocal processor kit if neither buffer or Simm...

Page 24: ...J J J J J 24 24 24 24 24...

Page 25: ...NVERTER IC6 A AD1877 8 16 IC1 B 74AC138 4 3 AR9 A 33E X4 2 1 AR9 B 33E X4 6 5 AR9 C 33E X4 2 1 AR16 A 33E X4 R7 1K 4 3 AR16 B 33E X4 8 7 AR16 D 33E X4 C49 330P 8 7 AR3 D 33E X4 5 6 IC20 C 74HC04 2 3 1...

Page 26: ...Generator Board Pcb Layout DRW BOCCATO APP PANNELLI REV 25 02 99 DISK 5 PART 1 1 CKD RICCOBELLI ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT WRITTEN CONSENT BY GENERALMUSIC DW...

Page 27: ...Rotate the Trackball in vertical way Modulation verifying the excursion displayed it ranges from 0 to 127 Rotate the Trackball in horizontal way Pitch verifying the excursion displayed it ranges from...

Page 28: ...rs Rubber Strip 35 652746 Sound Groups Actuators Rubber Strip 28 652745 Potentiometers Display Rubber Strip 30 652743 Enter Cursor Down Actuators Rubber Strip 25 652742 Intro Start Stop Actuators Rubb...

Page 29: ...0523 6 5mm Spacer 340092 5mm Board Spacer 171407 Shield Cpu Sound Generator Board 92 761166 Cpu Sound Generator Board Pcb 315150 first TRF version only 92 761181 Cpu Sound Generator Board Pcb 315150 T...

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