Victor 9000 User Manual

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TABLE OF ILLUSTRATIONS
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2-2
2-4
2-5
2-6
2-7
2-9
3-1
3-2
3-3,4
3-5
3-5
3-6
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3-10
3-11
3-12,13
3-14
3-15,16
3-17
3-17
3-22
3-24
3-28
3-46
3-56
3-65
3-87
3-91
3-92
3-94
5-2
5-3
5-5
5-7
5-8
5-9
5-10
Description
Victor 9000 system block diagram
CRT display system block diagram
Power distribution block diagram
Seek control
Motor speed control
Disk drive read/write system
Timing block diagram
Rectifier/voltage doubler circuit
Oscillator circuit
Power supply waveforms
+5 volt de circuit
+12 volt de unregulated circuit
+12 volt de regulated circuit
-12 volt de regulated circuit
Op/amp regulator circuit
Brightness control circuit ·
Horizontal drive circuit
Horizontal drive circuit waveforms
Vertical drive circuit
Vertical drive circuit waveforms
Video amplifier circuit
Video amplifier circuit waveforms
Motor speed waveforms
Disk write control waveforms
Disk read control waveforms
Basic system timing waveforms
Memory timing waveforms
Keyboard interface timing
Butterworth filter section
Keyboard module timing
Keyboard column strobes
128k memory board timing
Write protect switch assembly A
Write protect switch assembly B
Front panel bushings and locating tabs
Cone lever assembly A
Cone lever assembly B
Cone lever assembly C
Cone shaft and ·E-ring
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Victor 9000 Specifications

General

Processor	Intel 8088
Clock Speed	4.77 MHz
RAM	128 KB, expandable to 896 KB
Operating System	MS-DOS
Floppy Drive Capacity	1.2 MB per drive
Display	Built-in monochrome display
Text Resolution	80 x 25 characters
Graphics Resolution	800 x 400 pixels
Ports	Parallel, serial, video output