Table Of Contents - Kurzweil K2000, K2000R Service Manual

Table of Contents

Important Information2
Safety And Installation Instructions3
Radio And Television Interference4
Table Of Contents5
K200 Specifications6
K200 Features6
K200R Features7
Environmental Specifications8
Physical Specifications8
Electrical Specifications8
Glossary Of Terms9
Setup And Operation Checkout16
Voltage Selection16
Voltage Selector Card Removal16
Voltage Selector Card Orientation16
Fuses17
Fuse Replacement17
To Change From The North American To European Fusing Arrangement17
Ram Expansion18
Installation Of Simms18
To Verify The Simms Are Functional18
Engine Board Memory Chip Layout18
Changing System Software19
To Replace The Ics19
Basic Startup Checklist20
Startup - The Details20
Before Starting20
Connecting The Power Cable21
Audio Configurations21
Rear Panel Connection Layout21
Mix Outputs22
Separate Outputs22
Hardware Audio Switching23
Stereo Insert Cables24
Effects Return24
Input To K200025
K2000 Power-Up Check Out26
K200R Startup32
Startup - A Quick Checklist32
Before You Start33
The Rear Panel33
Connecting The Audio Cables34
Connecting Midi34
Connecting Scsi34
Switching On The Power35
Program Mode Display35
K200R Voltage Selection36
To Determine The Voltage Setting36
To Change The Selected Voltage36
K200R Fuses37
To Replace A Fuse37
K200R Ram Expansion38
Engine Board Chip Layout38
Simm Installation39
Changing The K200R System Software40
Disassembly/Assembly Instructions41
Enclosure Shell41
Enclosure Opening Detail41
Engine Or Audio/Power Board Removal42
K2000 Layout Detail42
Slider Board Removal43
Lcd Removal43
Front Panel Removal43
Power Transformer And Power Receptacle Removal43
Disk Drive Removal44
Keyboard Removal44
Key Replacement45
K2000R Disassembly/Assembly Instructions46
Cover Removal46
K2000R Connector Board Removal46
Engine Board Removal46
Front Panel And Display Access And Removal47
Maintenance, Care And Prevention, Troubleshooting48
Cleaning The K200048
Floppy Drive Maintenance48
Battery Selection And Replacement48
User Callable Diagnostics49
Maximizing Music And Minimizing Noise51
Ground Hum52
Power Problems And Solutions53
Troubleshooting54
Other Possible Problems55
K2000 Diagnostic Version 0.458
Introduction58
Using The K2000 Diagnostic Software58
Diagnostic Software Structure58
Running The Burn-In Test59
Special K2000 Power-Up Options59
Diagnostic Test Menu59
Selecting A Specific Test60
Continuous Testing60
Burn-In Test Menu60
Test Types61
Memory Tests61
Data Failure61
Descriptions Of Tests62
Rom Tests62
I/O Tests62
Lcd Test62
Boot Eprom Test63
Setup Eprom Test63
I/O Port Test63
Interrupt Test63
Audio Board Test64
Midi Uart Test64
Fdc Test64
Scsi Test64
Calvin And Hobbes Tests65
Calvin And Hobbes Test66
Option Board Test67
Sine Wave Test67
Sound Rom Test67
Sound Ram Test67
1St Nvram Test68
Sound Ram Test Failures68
Diagnostic Display Messages69
K2000 Scanner Diagnostics69
2Nd Nvram Test69
Using The Lcd Scanner Diagnostic70
Using The Led Scanner Diagnostics72
Led Valuse73
K2000 And K2000R Diagnostic Version 1.075
Entering Diagnostic Mode75
Diagnostic Test Manu76
Burn-In Test Manu77
Description Of Tests79
Address Failure79
Psram Test80
Sampling Option Test83
Diagnostic Display Message86
Scanner Diagnostics87
Led Values90
K2000R Maintenance And Care92
Cleaning The K2000R92
K2000 Audio/Power Board Theory94
Scanner Microprocessor94
Music Keyboard Interface94
Debug Port94
Front Panel Interface95
Wheels Interface95
Pressure Sensor Interface95
Pedals Interfaces96
Lcd Vee Voltage Generator96
Audio Path Control Outputs96
Option Connector96
Power Supply97
External Transformer97
Rectifier And Filters97
Heatsink Mounting Detail97
Analog Regulators98
Digital Regulators98
Backup Voltage Supply98
Lcd Backlight Power Supply98
Reset Circuit99
Audio Section100
D/A Converters100
Low-Pass Filters100
Separate Output Amplifiers100
Muting Circuits101
Audio Switching Matrix101
Mix Output Amplifiers101
Analog Switch Connection For Audio Signals101
Headphone Amplifiers102
Voltage Controlled Amplifiers103
Effects Mixer103
Effects Input Low-Pass Filter103
Effects Section104
Effects A/D Converter104
Effects D/A Conversion And Filtering104
Effects Lsi Chip And Delay Ram105
K2000 Audio/Power Theory106
Effects Microcode Ram106
Effects Microprocessor106
Effects Microprocessor Memory106
Audio Board Functional Block Diagram108
K2000 Wiring Guide109
Power Transformer109
Audio/Power Supply Board109
Engine Board110
Engine Pcb Mcpu111
Engine Pcb Mcpu Memory112
Engine Peripherals Interface113
Engine Pcb Mcpu/Calvin Interface114
Engine Pcb Calvin And Hobbes Circuits115
Engine Memory, Sound Roms116
Engine Simms, Sample Ram117
Audio/Power Pcb Scan Processor118
Audio/Power Pcb Power Supply119
Audio/Power Pcb Audio Path 1120
Audio/Power Pcb Audio Path 2121
Audio/Power Pcb Additional Outputs123
Audio/Power Pcb Reverb/Effects124
Audio/Power Pcb Effects Processor125
Button/Led Pcb127
Wheels Interface Pcb128
Slider Pcb129
Backlight Inverter130
Transformar I/O Wiring131
Pcb132
Audio/Power Pcb133