Illustrations
page
1.
Basic
Components
of
the Vectra
PC
system 2
2.
Internal Components
of
the
HP
Vectra 3
3. I/O Card Dimensions 5
4. Layout
of
the Processor Board 8
5.
Processor Board Block Diagram 9
6.
RAM Organization
11
7.
JU2
Configurations 16
8. Timer Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
18
9. Interrupt Controller Structure
21
10.
DMA
Address Generation 25
11. I/O Channel Connectors 29
12.
FDC
Jumper Configurations 45
13. Keyboard Interface Block Diagram 58
14.
HP
Vectra Keyboard (English) 60
15. Power Supply Components
74
16. Power Supply Cabling
74
17.
PFAIL
Timing Diagram 78
18. Multi-Mode Video Adapter Card Block Diagram
80
19. Multi-Mode Video Adapter Card Layout
81
20.
W2
Configurations 82
xi
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