HP 9830 Schematic

HP 9830 Computer
Section: Title & Contents
Page: N1 Rendition: 2014 Dec 26
C o n t e n t s
Section
Title & Contents (this page)
Notes
Block Diagram
CPU Clock
CPU Microcode Sequencing
CPU Microcode Controls
CPU Registers
CPU ALU
M Register & Memory Cycle Generator
T Register & Memory R/W Busses
ROM Bank Selection
ROM Addressing
BASIC ROM
ROM Cards & Cartridges
RAM Bank Selection & Addressing
RAM 4K Assembly
I/O State Machine & Flag Sense
I/O Flags & Register, 9866 Interface
I/O Busses
Hewlett-Packard
9830
Computer
Schematic
Contents
Assemblies Page Section
- N1 Keyboard Logic
- N2 Keyboard
- N3 Display Scan Logic
12 P 1 Display Column Drivers
13 P 2 Display Characters Left-16
13, 83 P 3 Display Characters Right-16
14, 83 P 4 Tape Interface
14, 83 P 5 Tape Command Decode
82 M 1 Tape Drive
83, 03 M 2 Tape Data Clock
82, 25, 03 M 3 Tape Read/Write
82, 25, 03 M 4 Tape Read
21 M 5 Power Supply
26, (RC) M 6 IC Units List
82 M 7 IC Types List, Calculations
84 M 8 Signal Names
11, 12 F1 Memory Map, Timing Diagrams
11, 02 F2 Board Layout - Backplane
11, 02 F3 Board Layout - CPU & Memory
Board Layout - Devices & Power Supply
Connectors - CPU & ROMS
Connectors - Power Supply & Memory
Connectors - Devices
(continued)
Assemblies Page
32 K1
31, 32 K2
42 D1
41 D2
41 D3
41 D4
61, 62 T1
62, 61 T2
64, 65 T3
62 T4
63, 65, 66 T5
63 T6
51 S1
- A1
- A2
- A3
- A4
- L1
- L2
- L3
- L4
- L5
- L6
This schematic has been derived through
examination of the equipment.
This is not the manufacturer's schematic.
© bhilpert / 2013
NOTE