Fairlight ESP CMI Model IIx Music Workstation
Producent:
Model:
CMI Model IIx
Data:
Kategoria:
Grupa:
Opis:
Computer Music Instrument

Informacja

The Fairlight Computer Musical Instrument is a complete music production and performance instrument. It is a special purpose computer system incorporating a custom dual M6809 central processor interfaced to special input-output devices optimised for the rather unusual requirements of music production. The C.M.I. is a complex special-purpose computer system which embraces many different hardware and software technologies. All processing and sound generation functions are performed by the Mainframe, while the Graphics Terminal and Keyboards serve as peripherals for operator interfacing. The mainframe is capable of operating quite autonomously, that is, it is not reliant on any external connections for proper functioning. Under certain conditions it is possible for a fault condition to inhibit proper Mainframe operation, so the serviceperson should be wary of being mislead. Of course, without the peripherals connected it is often hard to know if the system is functioning properly, but this point should be borne in mind when troubleshooting. Operator input to the Mainframe comes from three sources: music Keyboard, alphanumeric Keyboard and lightpen. Output devices include the Graphics Display terminal and the audio outputs. A printer may also be optionally used. The heart of the system is the Central Processing Module, which U3es two Motorola 6809 microprocessors in a dual-processor configuration. Both processors share a common buss which allows them both to communicate with the other cards in the Mainframe. The Processor Control Module provides EPROM for system startup and bootstrap, RS-232C serial input from the keyboard, serial output to the Keyboard and printer, and various other C.P.U. support functions such as interrupt prioritisation. Main program memory is the 256K RAM card. This holds all the operational software, much of which is overlayed from disk as the code exceeds 25ÖK. The Floppy-disk Controller uses Direct Memory Access techniques to transfer data between memory and the two floppy-disk drives. The Graphics Display is a bit-mapped image of 16K bytes of VRAM. This is displayed as an array of 256 by 512 points. Special hardware provides support functions for automatic vector drawing, which considerably enhances the speed of displaying graphical Information. Hit and touch signals from the Lightpen are interfaced to the system buss. Eight identical Voice Modules also share the buss. They each have 16K bytes of waveform RAM, as well as all the control and audio circuits required to support it. A Voice Master module controls the voice modules, as well as providing the Analog-to-Digital Converter function of the system. Audio from the Voice Modules is buffered by the Audio Output Module, which provides independent balanced outputs for each channel as well as a mixed (LINE) output.

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Serwis i User Manual
Typ ręczny:
Serwis i User Manual
Strony:
379
Rozmiar:
28.91 Mbytes (30319496 Bytes)
Język:
english
Rewizja:
2.1
Ręczny ID:
Data:
Jakość:
Skanowany dokument, czytając częściowo źle, nie częściowo czytelny.
Data przesłania:
16 sierpień 2017
MD5:
b61ed70ff2c6cc52e6adadd847094c18
Pobrane:
203

Informacja

1. INTRODUCTION ... 1 1.1 Card Cage ... 1 1.2 Audio Board ... 1 1.3 Power Supply ... 1- 1.4 Floppy-Disk Drives ... 1 1.5 External Connections ... 2 Figure 1. C.M.I. Mainframe Block Diagram ... 3 2. SYSTEM OVERVIEW ... 4 2.1 General Principles ... 4 2.2 Hardware/Software Relationships ... 5 2.2.1 System Startup/Boot ... 5 2.2.2 Disk Operations ... 5 2.2.3 Lightpen/Graphics Display ... 6 2.2.4 Command Entry ... 6 2.2.5 Loading/Saving Sounds ... 6 2.2.6 Sound Sampling ... 7 2.2.7 Music Playing ... 7 2.2.8 Music Keyboard Functions ... 8 2.2.9 Keyboard Sequencer ... 8 2.2.10 Music Composition Language ... 9 3* SPECIFICATIONS ... 10 3.1 ELECTRICAL ... 10 3.2 AUDIO ... 10 3 - 3 DIGITAL ... 11 3.4 MECHANICAL ... ... ... 81 6.2.3 WAVEFORM MEMORY TESTS ... 83 6.2.4 MEMORY DUMP ... 85 6.2.5 ENVELOPE CONTROL TESTS ... 85 6.2.6 VOLUME CONTROL TESTS ... 87 6.2.7 TIMER TESTS ... 88 6.2.8 PITCH AND OCTAVE CONTROL ... 89 6.2.9 INTERRUPT FLAGS ... ... 89 6.3 MASTER CARD TESTS ... 91 6-3-1 TIMER TESTS ... 91 6.3.1.1 Timer Tests ... 91 6.3.1.2 Click Out/Sync In Tests ... 92 6.3.2 MASTER PITCH REGISTER TEST ... 93 6.3-3 A-D Converter SYSTEM TESTS ... 94 6.3-3.1 AD Tests Using External Analog Source ... 94 6.3.3.1 AD Tests Using Internal Analog Source ... 95 6.3.4 MASTER BANDPASS FILTER TESTS ... 101 6.4 Q256 MEMORY CARD DIAGNOSTICS ... 103 6.4.1 COMMON INITIALIZATION, OPTIONS AND TEST PROCEDURES ... 104 6.4.2 MEM256 ... 106 6.4.3 MAP256 ... 109 6.4.4 DMA256 ... ... 113 6.4.5 MEMDBG ... 113 6.4.5.1 Use of MEMDBG ... 114 6.4.5.2 Adding Your Own Test Loops ... 114 6.5 Q133 CENTRAL PROCESSOR CONTROL MODULE ... 116 6.5.1 USER PERIPHERAL INTERFACE ADAPTER ... 116 6.5.2 SYSTEM TIMER ... 117 6.5.3 INTERRUPTS ... 11 8 6.5.4 ACIA ... 118 6.6 Q219 LIGHTPEN/GRAPHICS TEST ... 119 6.6.1 LGTST ... - ... 119 6.6.2 LIGHTPEN TIMERS ... 119 6.6.3 LIGHTPEN PIA ... 120 6.6.4 PROCESSOR ACCESS SELECTION _____..____________________________________120 6.6.5 LIGHTPEN DRAWING ... 120 6.6.6 VIDEO RAM TESTING ... 121 6.7 INTERRUPT TESTS ... 122 6.7.1 CMIINT ... 122 6.7.2 CMIINT COMMANDS ... 123 6.7.3 GENERAL PROCEDURE OF TESTS ... 124 6.7.4 ERROR MESSAGES ... 125 6.7.5 INTERRUPT PRIORITY ERRORS DIAGRAM ... 126 6.8 CHAIN TESTS ... 127 6.8.1 TESTING A COMPLETE CMI ... 127 6.8.2 DIGITAL SYSTEM TESTS * ... 127 6.8.3 COMPREHENSIVE ANALOG TEST ... 128 6.9 SUMMARY OF TEST WAVEFORMS ... 129 6.9.1 CMITST WAVEFORMS ... 130 6.9.2 FILTER FREQUENCY RESPONSE - REVS 1 & 2 ... 132 6.9.3 FILTER FREQUENCY RESPONSE - REV 3 ... -133 6.10 CMI07 ANALOG INTERFACE CARD ... 134 6.10.1 STARTING THE AIC TESTS ... 134 6.10.2 REQUIRED HARDWARE CONFIGURATION ... 134 6.10.3 AIC RAM TEST ... 134 6.10.3.1 Program Flow of the RAM Test ... 135 6.10.4 AIC MULTIPLEXOR TEST ... 135 6.10.4.1 Program Flow of the MUX Test ... 136 6.10.3 AIC ANALOG TEST ... 136 6.10.3.1 Program Flow of the DAC Test ... 137 6.10.6 AIC TUNING ... 137 6.10.6.1 AIC Input Tuning ... 137 6.10.6.2 AIC Output Tuning ... 138 7. SIGNAL LIST - INTERNAL CONNECTIONS ... 139 7.0 MOTHERBOARD SIGNAL LIST ... 139 7.1 COMMON SIGNALS BUSSED TO ALL SLOTS ... 140 7.2 SLOT 1: MASTER CARD CMI-02 ... 141 7.3 SLOT 2: GENERAL INTERFACE CARD CMI-28 ... 142 7.4 SLOT 3 TO 10: CHANNEL CARD CMI-01-A ... 143 7.5 SLOT 11: ANALOG INTERFACE CARD CMI-07 ... 144 7.6 SLOT 12: 64k SYSTEM RAM Q096 (not used) ... 145 7.7 SLOT 13» 14: 256K SYSTEM RAM Q256 ... 146 7.8 SLOT 15: FOUR PORT ACIA MODULE QÖ14 ... 147 7-9 SLOT 16: PROCESSOR CONTROL MODULE Q133 ... 148 7.10 SLOT 17: CENTRAL PROCESSOR MODULE Q209 * ... 150 7.11 SLOT 18: LIGHTPEN/GRAPHICS INTERFACE Q219 ... 151 7.12 SLOT 19: FLOPPY DISK Controller QFC9 ... * ... 152 7.13 SLOT 20: HARD DISK Controller Q077 ... 152 . SIGNAL LIST - EXTERNAL CONNECTIONS ... 153 8.1 A.C. MAINS ... 153 8.2 GRAPHICS POWER ... 153 8.3 GRAPHICS ... 153 8.4 KEYBOARD POWER ... 154 8.5 KEYBOARD ... 154 8.6 PRINTER ... ... 155 ' 8.7 PHONES ... 155 8.8 MONITOR ... 156 8.9 CHANNELS 1 to 8 ... 156 8.10 MIXED LINE OUTPUT ... 156 8.11 SYNC ... 157 8.12 FILTER OUT ... 157 8.13 MIC IN ... 157 8.14 LINE IN ... 158 8.15 ADC DIRECT ... 158 9. REMOVE/REPLACE PROCEDURE ... ... ... 159 9 .1 MAINFRAME FRONT PANEL REMOVE/REPLACE ... 159 9-2 CIRCUIT BOARD REMOVE/REPLACE ... 159 9-2.1 CIRCUIT BOARD REMOVAL ... 159 9.2.2 CIRCUIT BOARD REPLACEMENT ... 159 9.3 MAINFRAME REAR PANEL REMOVE/REPLACE ... 1 60 9-4 AUDIO BOARD, CMI-04 REMOVE/REPLACE ... 161 9.4.1 AUDIO BOARD REMOVAL ... 161 9-4.2 AUDIO BOARD REPLACEMENT ... 161 9.5 TOP COVER REMOVE/REPLACE ... 162 9 • 6 SIDE COVER REMOVE/REPLACE ... 162 9.7 BOTTOM COVER REMOVE/REPLACE ... 162 9.8 DISK DRIVE REMOVE/REPLACE ... 163 9.8.1 DISK DRIVE REMOVAL ... 1 63 9.8.2 DISK DRIVE REPLACEMENT ... 164 9.9 FAN ASSEMBLY REMOVE/REPLACE ... 164 9.10 CARD CAGE REMOVE/REPLACE ... 164 9.10.1 CARD CAGE REMOVAL ... 164 9.10.2 CARD CAGE REPLACEMENT ... 165 9.11 REGULATED Power Supply ASSEMBLY REMOVE/REPLACE ... 166 9.11.1 REMOVAL ... 166 9.11.2 REPLACEMENT ... 167 9.12 MOTHERBOARD REMOVE/REPLACE ... 167 9.12.1 REMOVAL ... 167 9.12.2 REPLACEMENT ... 167 9.13 TRANSFORMER END PLATE REMOVE/REPLACE ... 1 69 9.13.1 REMOVAL ... 169 9.13.2 REPLACEMENT ... ... 1 69 10. REPAIR PROCEDURE ... 170 11. PREVENTATIVE MAINTENANCE ... 170 SCHEMATIC DIAGRAMS ... 171 12.1 Q209 DUAL 6809 CPU ... 172 12.2 Q133 CPU CONTROL ... 176 12.3 Q256 256K MEMORY ... 181 12.4 QFC9 FLOPPY DISK Controller ... 187 12.5 Q219 LIGHTPEN/GRAPHICS ... 193 12.6 CMI02 MASTER CARD ... 199 12.7 CMI01-A CHANNEL CARD ... 203 12.8 CMI04 AUDIO MODULE ... * ... 204 12.9 QPSA Power Supply ... 207 12.10 Q137 FRONT PANEL ... 209 12.11 Q077 HARD DISK Controller ... 210 12.12 CMI28 GENERAL INTERFACE ... ■ ... 215 12.13 CMI07 ANALOG INTERFACE ... * ... 225 12.14 MAINFRAME WIRING DIAGRAM ... 229 13* EXPLODED VIEWS ' ... ■ ... 230 13-1 TRANSFORMER' END PLATE ... 231 13.2 CARD CAGE ASSEMBLY ... 232 13-3 REGULATED Power Supply ... 233 13-4 FAN ASSEMBLY ... 234 13.5 REAR PANEL ... 235 13-6 FRONT PANEL ... 236 13-7 MAINFRAME ... 237 14. MECHANICAL PARTS LISTS ... 238 14.1 MAINFRAME DRAWING REF DMC0001 ... 238 14.2 CARD CAGE ASSEMBLY DRAWING REF DMC032 ... 239 14.3 MAINFRAME REAR PANEL DRAWING REF DMC038 ... 240 14.4 FRONT PANEL ASSEMBLY DRAWING REF DMC042 ... 241 14.5 TRANSFORMER END PLATE DRAWING REF DMC046 ... 242 14.6 REGULATED Power Supply DRAWING REF DMC057 ... 243 14.7 FAN ASSEMBLY DRAWING REF DMC066 ... 243

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