Table of Contents
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Table of Contents
Related Manuals for Wersi DX 500
Summarization of Contents
B. TECHNICAL CONCEPT
I. Traditional Organ Systems
Overview of analog and quasi-digital organ technologies.
II. The DX System With Full Digital Tone Processing
Explains the DX system's digital tone processing using microprocessors.
III. The DX System Block Diagrams
Explains the master and slave processor block diagrams.
3. Audio Block Diagram
Details the routing and processing of audio signals from slaves.
4. Digital Rhythm Instruments
Describes the digital sound generation for rhythm instruments.
5. Digital Reverb Unit
Explains the digital reverb processing, timing, and effects.
6. Interface
Covers MIDI, RS232, and tape interfaces for data exchange.
C. SCHEMATIC DIAGRAM
I. Central Electronics
Details backplane board, plug-in boards, and component layouts.
II. Control Panels
Explains schematic diagrams of control panel PC boards.
III. Peripheral PC Boards
Covers boards for MIDI, RS232, microphone, etc.
1. Backplane Board MB 30
Describes the functions of the backplane board MB 30.
EDGE CONNECTOR PIN LAYOUT
Pin layout of edge connectors on the MB 30 backplane.
Plug layout MB 30, Side A
Shows the plug layout of the MB 30 board, side A.
2. Plug-in Board PS 12 - Power Supply
Principles of Operation
Explains how the power supply board generates necessary voltages.
Fig. 4. Plug-in board PS 12, component layout and functions
Component layout and functional descriptions for PS 12.
Fig. 5: Plug-in board PS 12, schematic diagram
Detailed schematic diagram of the PS 12 power supply board.
3. Plug-in Board AF 12 - Preamplifier
Principles of Operation
Explains the analog processing and signal apportionment by AF 12.
Fig. 6: Plug-in board AF 12, component layout and functions
Component layout and functional descriptions for AF 12.
Fig. 7: Plug-in board AF 12, schematic diagram
Detailed schematic diagram of the AF 12 preamplifier board.
4. Plug-in Board DH 10 - Digital Reverb
Principles of Operation
Explains the digital reverb processing, timing, and effects.
Fig.8: Plug-in board DH 10 component layout and functions
Component layout and functional descriptions for DH 10.
Fig. 9: Plug in board DH10, schematic diagram
Detailed schematic diagram of the DH 10 digital reverb board.
5. Plug-in Board EF 20 ---Special Effects, Analog Portion
Principles of Operation
Explains Wersivoice and VCF analog effects processing.
a) Wersivoice
Details the Wersivoice circuit components and function.
b) VCF
Explains the Voltage Controlled Filter (VCF) circuit and its controls.
Fig. 10: Plug-in board EF 20, component layout and functions
Component layout and functional descriptions for EF 20.
Fig. 11: Plug-in board EF 20, schematic diagram
Detailed schematic diagram of the EF 20 analog effects board.
Distortion on
Explains the distortion function within the EF 20 circuit.
6. Plug-in Board EF 19 ---Special Effects, Digital Portion
Principles of Operation
Covers master/special effects, RS232, and cassette interfaces.
a) Master/Special Effects Interface
Explains digital signal transfer for effects and reverb.
b) R5232 Interface
Details the RS232 interface for computer communication.
c) Cassette Interface
Explains the interface for cassette recorder data transfer.
Fig. 12: Plug-in board EF 19, component layout and functions
Component layout and functional descriptions for EF 19.
Fig. 13: Plug-in board EF19, schematic diagram
Detailed schematic diagram of the EF 19 digital effects board.
7. Plug-in Board DDS 3 - Rhythm
Principles of Operation
Explains digital sound playback and multiplexing for rhythm sounds.
Fig. 14: Plug-in board DDS 3, component layout and functions
Component layout and functional descriptions for DDS 3.
Fig. 15: Plug-in board DDS3, schematic diagram
Detailed schematic diagram of the DDS 3 rhythm board.
8. Plug-in Board SL 3 - Slave Processor
Principles of Operation
Explains the testing procedure for slave processors and voices.
Fig. 16: Plug-in board SL 3, component layout and functions
Component layout and functional descriptions for SL 3.
Fig. 17: Plug-in board SL3, schematic diagram
Detailed schematic diagram of the SL 3 slave processor board.
9. Plug-in Board MST 3 - Master Processor
Fig. 18: Plug-in board MST 3, component layout and functions
Component layout and functional descriptions for MST 3.
Fig. 19: Plug-in board MST 3, schematic diagram
Detailed schematic diagram of the MST 3 master processor board.
II. Control Panels
1. CB Boards
Explains the function of control panel PC boards with switches and drawbars.
2. Key Contact Boards
Describes key contact boards for decoding keyboard inputs.
Fig. 20: Control boards CB 20, 27, 28 (slide controls, drawbars), schematic diagram
Schematic of control boards for slide controls and drawbars.
Fig. 21: Control board CB21 (switches, display), schematic diagram
Schematic of control board CB21 for switches and display.
Fig. 22: Control board CB22 switches), schematic diagram
Schematic of control board CB22 for switches.
Fig. 23: Control board CB 23 (rhythm CX 4), schematic diagram
Schematic of control board CB 23 for rhythm functions.
Fig. 24: Control board CB 25 (VCF, Glide) schematic diagram
Schematic of control board CB 25 for VCF and Glide functions.
Fig 25a: Key contact board KD1, schematic diagram
Schematic of key contact board KD1 for keyboard matrix decoding.
Fig. 26: Key contact board KD 2, schematic diagram (DX 500 only)
Schematic of KD 2 key contact board for DX 500.
Fig. 27: Key contact board KD4, schematic diagram (DX400 only)
Schematic of KD 4 key contact board for DX 400.
III. Peripheral PC Boards
1. PCBoards CB24 and ST15
Covers MIDI, RS232, and swell pedal interface circuits.
2. PC Boards MP 2 thru MP 6
Interfaces for microphone, headphones, and tape recorder.
3. PC Boards TS Sand PA 10
Covers triac switch TS 5 and power amplifier PA 10.
Fig. 28: Interface panel CB 24, MIDI circuits
Schematic of CB 24 interface panel for MIDI and RS232.
Fig. 29: Interface panel ST 15, schematic diagram (BETA CP only)
Schematic of ST 15 interface panel for swell pedal and MIDI.
Fig. 30: Microphone preamp MP 2/MP 3 (BETA S and T only)
Schematic of microphone preamp MP 2/MP 3.
Fig. 31: Microphone preamp MP 2 (BETA S and T only)
Schematic of microphone preamp MP 2, detailing controls.
Fig. 32: Microphone preamp MP 4 (DX 500 only)
Schematic of microphone preamp MP 4 for DX 500.
Fig. 33: Microphone preamp MP 5 (BETA CP only)
Schematic of microphone preamp MP 5 for BETA CP.
Fig. 34: Headphone amplifier NIP 6 (BETA CP only)
Schematic of headphone amplifier NIP 6 for BETA CP.
Fig. 35: Triac switch TS 5, schematic diagram (not in BETA CP)
Schematic diagram of the TS 5 triac switch.
Fig. 36: Power amplifier PA 10, schematic diagram (not in BETA CP)
Schematic diagram of the PA 10 power amplifier.
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