Kurzweil K250 - Chapter 3 - System Overview

Chapter 3 - System Overview
3.1
3.2
3.3
3.4
Overview
3.1.1
Kurzweil250
3.1.2 Kurzweil
250X
3.1.3 Kurzweil RMX 250 and 225
Mechanical Overview
3.2.1
Kurzweil
250 Enclosure Overview
Figure 3.1, Kurzweil
250 Enclosure
Chassis Sub-Assembly
Figure 3.2, Chassis Trays
Front Panel Sub-Assembly
POD Assembly
Keyboard Sub-Assembly
Electrical Overview
Figure 3.3, Electrical/Control
Flow
Figure 3.4, Interconnect Diagram
Functional Descriptions
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.4.6
3.4.7
3.4.8
CPU
68000 and Memory
I/O Ports
Front Panel Control
Interface
Keyboard Interface
Figure 3.5, K250 Memory Map
Channel Group Processor (CGP)
Figure 3.6, CGP Block Diagram
Figure 3.7, CGP State Diagram
Figure 3.8, CGP Memory Map
Channel Board
Figure 3.9,
K250 Channel Board
Figure
3.10, Analog/Channels Block Diagram
Figure 3.11, Handshake Diagram for a
Single Channel (N)
Figure 3.12, CGP-Channel Board Interface
Front Panel Assembly
Control Panel Board
Slider Board
Display Board
Keyboard Sub-Assembly
Figure 3.13, Keyswitch Boards
Keyswitch Boards
Audio Board
POD Assembly
Kurzwell 250 Service Manual, Chapter 3
3-1
3-2
3-2
3-2
3-2
3-3
3-3
3-3
3-4
3-4
3-5
3-5
3-6
3-7
3-8
3-9
3-10
3-10
3-11
3-11
3-13
3-13
3-15
3-16
3-21
3-22
3-23
3-26
3-31
3-32
3-33
3-34
3-35
3-35
3-36
3-37
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3-39
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