Table Of Contents - Viscount C-440 Manual

Contents
WARNING .•.•.••.••••...•••...•••.•••...•...........••.•.•.......•.•.••.••...............•••........••••....•••••••.•.... 4
Model Specifications ••••••••••.•••••••••......•.............•..••.•.....•••.•.••........••..••..•••.•••••...•••••••••.......••••••.... 4
Notes •••....•••••...••....•••.•..•........•......................•.•...................•..........••••••......................• 4
Model Block Diagrams ••••••••.•.•••••......•........•.•.....•.•......••..••••......••••••..•.•.••••.....••••••••••.•...•...•••••... 4
Schematics •••••••••••••••••••••••••..•.••••..•....••..•..........•••••....................••••..........•••..........••.••......••.•••..... 4
Firmware System Block Diagram ••..••.....•••.••....•••••..••...••••...••.............•••.•••....••••••...•.••••...........••• 5
5215-304 Digital Voice Module ••••...•....••.•..•....•.•....•.•.•.•....................•••.........•.••..•••••••...........•••• 5
7117441000 Digital Reverb Board .........•••••............•..••••••....•.......•....••.•.......••••••.•..•••............••.• 5
Hardware- Wire Trap Connectors ..•......••.•.........•..•••••.•...............•...•...........••••.......•••...........•••• 5
External Speaker Terminal Connector Assignments 550, 580, 685 .......................................... 6
External Amplifier Connections 550, 580, 685 •••.••............•.•..•••...........•............••..........•.•••..... 6
Printed Circuit Board Assembly Chart .................................................................... 7
PCB Placement on Key deck ••••.•••.......................•..................•..•.............•.•..........••..•••..•.••.••....•. 8
ApplicationNotes .....•.....•••........................................................................................ 9
Adding a Cable Routing Cover to the 550, 580, or 685 Organ Back ........................................ 9
550/580 •.•••.....••••..•.•••••••••••••••••••••....•.......•...•..........•....•.••••.•..............•...........•••.•••••••••........••..••• 9
685 ············-································································································································ 9
Two piece consoles •...•••••••••.•••••••••..................••....•....•..•••.••••........•......•.•••.......•..•.•••••••........•..•• 11
Assembly Instructions ...........•.....................•..•....................•.........•....................••..... 11
Opening Console ••••....•.•••.•...•...•••.......••.•..........••.••.•.•...................•..••......••••..•.......•.•.•.•••..•...••.• 13
Keyboard and Piston Rail Ser-vicing ....................................................................... 14
Keyboard and Piston Rail Assembly/disassembly ••••••••.•...•....•.•...........••.••••••.•..•........•••••......... 14
Detaching keyboard from Circuit Board .......•..•....................•..............••..........•••........••........... 14
Individual Key Service •.•••••••.••.••••.........................................................................•....•...........• 16
Key removal •••••••••••••.••..•....••••.•..•.....•...............•...•................................................................... 16
Key :Installation .••.......••••••••••.•..•.•....................•..•...........•........•......................•...••••.•.............•• 18
Tilt Tab Lamp and Switch Dis-assembly/Assembly ................................................................. 20
Tilt Tab Service ••••.................................................................................................... 20
Removing and Replacing Tilt Tab ....................................••..•.............•.............•........•............. 21
Tilt Tab Layout - Model Notes .............................................•................................•.••............. 21
Test Mode Display •.••..•.•...••.••.....•.....•..............•.•••...•....•..........................••.••••.•••......••...•.....•.•• 21
Factory Adjustment for Expression and Tremulants .............................................. 24
Miscellaneous Parts ....................................................................•............................ 25
Page 2
Rodgers Instrument Corporation