North Star ZPB-A Manual
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NORTH STAR * COMPUTERS, INc.2547 Ninth Street· Berkeley, California 94710 • (415) 549-0858North StarZ80A PROCESSOR BOARD ZPB-AContentsCautions • . . .• ....•.•• 2Introduction . .. •....••• 3Limited Warranty . • . . . . . • . 4Out of Warranty Repair . . . . . • • • 4ZBP-A Parts List . • • • • • . •. 5PROM Option Parts List . ••• 6Assembly Information . • . . . • • . . .. 7Figure lA: Component Identification . 10ZPB Assembly • . •. ...••.... 11ZBP Board Checkout • .•...•... 15PROM Option Assembly and Checkout . . . . 20Configuration Options .•.. . . •. 21Theory of Operation • . . . • . . • • 24Appendix 1: Pulse Signal Detection ..•. 28Appendix 2: S-100 Bus Signals . .• . 29Assembly Figures . . . • . . . • . . • • . 30Schematic Drawings . • . . . .. ... 31Copyright 1977, North Star Computers, Inc.REVISION 3 |
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