https://github.com/hkzlab/wink_msp-mdc_redux

Reimplementation of the MSP-MDC CPU/Security module for the Wink arcade board by Midcoin
https://github.com/hkzlab/wink_msp-mdc_redux

Last synced: 6 days ago
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Reimplementation of the MSP-MDC CPU/Security module for the Wink arcade board by Midcoin

• Host: GitHub
• URL: https://github.com/hkzlab/wink_msp-mdc_redux
• Owner: hkzlab
• Created: 2024-08-21T16:06:17.000Z (6 months ago)
• Default Branch: main
• Last Pushed: 2024-08-22T08:12:07.000Z (6 months ago)
• Last Synced: 2024-08-22T20:22:16.024Z (6 months ago)
• Size: 2.14 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# MSP-MDC Redux

## DISCLAIMER

Any use of this project is **under your own responsibility**.

You will be responsible of checking the correct construction and functionality of your board.

By using this project You will agree that I cannot be held responsible if it will destroy any of your devices, damage your computer, burn down your house or whatever.

## Introduction

Wink is a 1985, breakout-style, arcade game by Midcoin.

The game uses off-the-shelf components for everything, but a bunch of circuitry, called the MSP-MDC module, that acts both as CPU and as 

security (scrambling addresses accessed by the CPU), is placed on 3 sandwiched PCBs encased in epoxy.

This was made to thwart bootleggers, but if something within this epoxied block dies, the whole game stops working.

I painstakingly pulled the block apart and chipped away the epoxy to recover the schematic.

This project contains files to build a compatible board that can be plugged in place of the original MSP-MDC.

![Wink PCB + MSP-MDC redux](pics/wink_board.jpg)

## Hardware

The board was designed with [KiCad](https://kicad.org/) EDA.

You can order boards directly from [PCBWay](https://www.pcbway.com/project/shareproject/MSP_MDC_Redux_c4e8a048.html)!

### Bill of Materials

| Component         | Qty | Type / Value                   | Notes                                                    |

| ----------------- | --- | ------------------------------ | -------------------------------------------------------- |

| C1 - C14          | 19  | 100nF / 1206 / ceramic         |                                                          |

| R1, R2            |  2  | 1K / 1206                      |                                                          |

| RN1               |  1  | 9-pin bussed 10K resistor array|                                                          |

|                   |  4  | 4x15pin 2.54mm straight headers| Mount on the 4 sides of the module                       |

| U2                |  1  | DIP-40 Z80A CPU                | It's a good idea to socket this                          |

| U3, U14           |  2  | 74LS374 SO-20                  | 5.3x12.6mm                                               |

| U4                |  1  | 74ALS00 SOIC-14                | 3.9x8.7mm                                                |

| U5                |  1  | 74ALS32 SOIC-14                | 3.9x8.7mm                                                |

| U6                |  1  | 74LS245 SO-20                  | 5.3x12.6mm                                               |

| U7                |  1  | 74ALS244 SO-20                 | 5.3x12.6mm                                               |

| U8, U20           |  2  | 74LS283 SOIC-16                | 3.9x9.9mm                                                |

| U10               |  1  | 74LS00 SOIC-14                 | 3.9x8.7mm                                                |

| U11               |  1  | 74LS32 SOIC-14                 | 3.9x8.7mm                                                |

| U12               |  1  | 74LS86 SOIC-14                 | 3.9x8.7mm                                                |

| U13               |  1  | 74LS166 SOIC-16                | 3.9x9.9mm                                                |

| U15               |  1  | 74LS138 SOIC-16                | 3.9x9.9mm                                                |

| U16 - U19         |  4  | 74LS257 SOIC-16                | 3.9x9.9mm                                                |