Sharp MZ-2000 Owner's Manual
The Sharp MZ-2000 Owner's Manual is the Japanese owner's manual that Sharp supplied with the Sharp MZ-2000 personal computer in 1982. The hosted copy is a 157-page scan of the 152 printed pages and covers, taken from the Internet Archive.[1] Besides the operating instructions, it contains the full circuit diagrams of the computer, its display unit, cassette deck control board and power supply, and of the MZ-1R01 graphics board and MZ-1U01 expansion I/O unit.[2] Sharp included the circuit diagrams in the owner's manuals of its MZ machines up to the MZ-2200.[3]
The PDF page number is one more than the printed page number throughout.
Contents
[edit | edit source]| Section | Printed page | PDF page |
|---|---|---|
| Cautions; introduction | 2, 3 | 3, 4 |
| Chapter 1: the MZ-2000 (features, memory organisation, operation and processing, system expansion) | 7 to 12 | 8 to 13 |
| Chapter 2: operating the MZ-2000 (initial program loading from tape and disk, IPL flow chart, keyboard, cassette deck control keys, character, graphics and colour display control) | 13 to 34 | 14 to 35 |
| Chapter 3: setting up the options (MZ-1R01 graphics board, MZ-1R02 graphics memory, MZ-1U01 expansion I/O port, interface cards) | 35 to 44 | 36 to 45 |
| Chapter 4: hardware (system diagram, memory maps at IPL, in normal use and for V-RAM access, signals of the 8255, 8253 and PIO) | 45 to 61 | 46 to 62 |
| 4.4 MZ-2000 circuit diagrams | 62 to 76 | 63 to 77 |
| Appendix A.1: Z80A CPU technical data | 78 to 130 | 79 to 131 |
| Appendix A.2: Z80A PIO technical data | 131 to 148 | 132 to 149 |
| Appendix A.3: MZ-2000 specifications | 149, 150 | 150, 151 |
| Appendix A.4: handling precautions | 151, 152 | 152, 153 |
The circuit diagrams in section 4.4 are:[2]
| Figure | Subject | Printed page | PDF page |
|---|---|---|---|
| 4-11 | CPU board (1): CPU signals, LZ90D02, reset circuits | 63 | 64 |
| 4-12 | CPU board (2): LZ90D01 CRT controller, video RAM, character ROM, display connector CN2 | 64 | 65 |
| 4-13 | CPU board (3): 8255 and PIO signals, keyboard and cassette connectors | 65 | 66 |
| 4-14 | CPU board (4): RAM block and IPL ROM | 66 | 67 |
| 4-15 | CPU board (5): connector to the MZ-1R01 and power connector CN7 | 67 | 68 |
| 4-16 | CRT display control (display unit) | 68 | 69 |
| 4-17 | Cassette tape deck control | 69 | 70 |
| 4-18 | Power circuit (unit DBOXD0044PAZZ) | 70 | 71 |
| 4-19 to 4-22 | MZ-1R01 graphics board: control and RAM blocks | 71 to 74 | 72 to 75 |
| 4-23 | MZ-1U01 expansion I/O motherboard | 75 | 76 |
| 4-24 | MZ-1U01 power circuit (unit DBOXD0048PAZZ) | 76 | 77 |
The pages most useful for repair:
- Section 3.1 (printed pages 36 to 41): the official way to open the case, lifting the upper cabinet on its support arm, with Sharp's warning not to switch on while it is raised.[4] The drawing of the raised cabinet is also hosted as File:Sharp MZ-2000 upper cabinet raised on its support arm (owner's manual).png.
- Figure 4-18 (printed page 70): the power supply, with every fuse, regulator and capacitor value. It is also hosted as File:Sharp MZ-2000 power supply circuit (owner's manual).png.
- Figure 4-16 (printed page 68): the display unit, with the tube, flyback transformer, fuse and adjustment controls.
- Appendix A.3 (printed pages 149 and 150): specifications of the computer, CPU board, graphics board, power supply, display and cassette deck.[5]
- Appendix A.4 (printed pages 151 and 152): Sharp's handling precautions, including head cleaning, screen burn and the upper cabinet.[6]
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What this manual does not contain
[edit | edit source]- There is no parts list, no adjustment or alignment procedure and no fault-finding section. Component values appear only on the circuit diagrams.
- Some decimal points on the display unit diagram (figure 4-16) are missing from the scan. Values such as "4 7/25V" next to a capacitor, or "6 8K" next to a resistor, have a gap where the point should be; read the part on the board before ordering. See the Sharp MZ-2000 Capacitor Replacement Guide.
- The cassette deck mechanism is not drawn: there are no exploded views and no belt, roller or damper part numbers.
- The manual is for the MZ-2000 only. It does not describe the Sharp MZ-2200.
- The listing of the IPL program is not here; the manual refers to the separate BASIC/Monitor Manual for it.[7]
Pages that cite this document
[edit | edit source]- Sharp MZ-2000: specifications, chips, power supply, display unit, cassette deck and start-up.
- Sharp MZ-2000 General Maintenance: opening the case, handling precautions, power rails and display controls.
- Sharp MZ-2000 Troubleshooting Guide: fuses, rails, start-up messages and the display and cassette circuits.
- Sharp MZ-2000 Capacitor Replacement Guide: electrolytic capacitors of every board.
References
[edit | edit source]- ↑ Personal Computer MZ-2000 Manuals, Internet Archive—link(accessed 2026-10-21) File "Personal Computer mz-2000 OWNERS MANUAL SHARP.pdf", alongside the BASIC/Monitor Manual and the Disk BASIC Manual.
- ↑ 2.0 2.1 Sharp, MZ-2000 Owner's Manual (File:Sharp MZ-2000 Owner's Manual.pdf), contents (PDF pages 5 and 6, unnumbered), and section 4.4, printed page 62 (PDF page 63), which lists the circuit diagrams.
- ↑ MZ (コンピュータ), Wikipedia (Japanese)—link(accessed 2026-10-21) Up to the MZ-2200, the circuit diagrams, monitor source code and Z80 instruction tables were printed in the Owner's Manual supplied with the machine.
- ↑ Sharp, MZ-2000 Owner's Manual (File:Sharp MZ-2000 Owner's Manual.pdf), section 3.1, printed pages 36 to 41 (PDF pages 37 to 42).
- ↑ Sharp, MZ-2000 Owner's Manual (File:Sharp MZ-2000 Owner's Manual.pdf), appendix A.3, printed pages 149 and 150 (PDF pages 150 and 151).
- ↑ Sharp, MZ-2000 Owner's Manual (File:Sharp MZ-2000 Owner's Manual.pdf), appendix A.4, printed pages 151 and 152 (PDF pages 152 and 153).
- ↑ Sharp, MZ-2000 Owner's Manual (File:Sharp MZ-2000 Owner's Manual.pdf), section 2.1.3, printed page 18 (PDF page 19): the full assembly listing of the IPL program is in the separate BASIC/Monitor Manual.
Download: Sharp MZ-2000 Owner's Manual.pdf