POWER AMPLIFIER & SUPPLY BOARD (PCB LAYOUT)POWER AMPLIFIER & SUPPLY BOARD (PCB LAYOUT)POWER AMPLIFIER & SUPPLY BOARD (PCB LAYOUT)POWER AMPLIFIER & SUPPLY BOARD (PCB LAYOUT)POWER AMPLIFIER & SUPPLY BOARD (PCB LAYOUT)
& Supply Board (Pcb)ĭISK: 40 PART: 1/1CKD: ALL RIGHTS ARE RESERVED, NO COPIES ORREPRODUCE THIS DOCUMENT WITHOUTWRITTEN CONSENT BY GENERALMUSIC. ItalySCHEMATIC DIAGRAM WK4Phones, Tackball, Audio/Video Interfaceand Power Amp.
ItalySCHEMATIC DIAGRAM WK4Midi & Controls I/O Board, KeyboardInterface Board (Pcb Layouts)ĪLL RIGHTS ARE RESERVED, NO COPIES ORREPRODUCE THIS DOCUMENT WITHOUTWRITTEN CONSENT BY GENERALMUSIC. WRITTEN CONSENT BY GENERALMUSIC.OR REPRODUCE THIS DOCUMENT WITHOUTALL RIGHTS ARE RESERVED, NO COPIES Lcd Diplay Dial Encoder Right Mylar Strip
Screws marked byTo open the instrument remove theĬontrol & MIDI I/O BoardKeyboard Assembly Floppy Disk Driver Remove the screws marked byTo separate the keyboard from chassis To access to the Disk Driveremove the screws marked by Unlock the key appling not much strenghtNote: To remove a sharp key beforeyou must remove a near natural key. ITALYALL RIGHTS ARE RESERVED, NO COPIESOR REPRODUCE THIS DOCUMENT WITHOUTWRITTEN CONSENT BY GENERALMUSIC.Ĥ0DISASSEMBLING INSTRUCTIONSOPENING & KEYBOARD1/1 Optional Accessories Mounting Instructions Power Amplifier & Supply, Audio/Video Int., Phones & Trackball Pcb LayoutsĬontrols Panel Pcb Layout & Reverse Layout
All resistors are 1/8W unless otherwise specified.ĪTTENTIONObserve precautions when handlingĬpu & Sound Generator Schematic (Part 1/2) 10Cpu & Sound Generator Schematic (Part 2/2) 11 The electrolytic capacitors are 25Vdc rated voltage unless otherwise specified. The () omega symbol of resistance value is substituted by E. The () micro symbol of capacitance value is substituted by U. Schematic NotesAll components marked by this symbol have special safety characteristics, when replacing any of these components use only manufacturer's specified parts. NoticeService must be carried out by qualified personnel only.Any tampering carried out by unqualified personnel during the guarantee period will forfeit the right to guarantee.įor a correct operation of the instrument, after having switched off, be careful to wait at least 3 seconds before switching on again.To improve the device's specifications, the schematic diagrams may be subject to change without prior notice. Midi & Controls I/O, Keyboard Interface & L/R Contact SchematicsĨControls Panel, Trackball & Dc-Ac Converter Schematics9 Pcb LayoutsĦPower Amplifier & Supply Schematic, Adjustment Table7 Opening & Keyboard Disassembling Instructions 2Assembly & Wiring Connections 3īlock Diagram, Midi & Controls I/O and Keyboard Int. Sales Division: 47048 S.Giovanni in Marignano (RN) ITALY - Via delle Rose, 12 - tel. Flag joined with one or more flags with the same signal name inscribed.