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In their letters, readers often ask us the question: how to eliminate data bus instability when accessing the music coprocessor?
Such a defect is related to the incorrect connection of the music coprocessor to the computer, or rather to the inaccurate addressing of its ports.
Across the vast expanses of our country, there are a great many connection schemes for AY, almost all of them are more or less working, but there are very few that are absolutely reliable.
Below we provide you with a scheme that has been repeatedly reproduced by Moscow radio amateurs and does not lead to side effects like unstable data bus.
This scheme was first published in the program "AY-SCHEME" by the Moscow company MAGICSOFT.
Regardless of whether AY is connected to your computer or not, do not forget that the data bus must be "pulled" to +5V with resistors of not too high a value, usually 4.7-10k.
Contents of the publication: Spectrofon #06
- Экспретиза - Дмитрий Усманов
Review of 'Heroes of the Lance' for ZX Spectrum, focusing on gameplay mechanics, character roles, and the challenges faced by Russian gamers due to faulty localizations.
- Дебют - Дмитрий Усманов
The article reviews two arcade games for ZX Spectrum: 'The Munsters' and 'Star Paws'. 'The Munsters' combines arcade action with adventure elements, focusing on creating Frankenstein, while 'Star Paws' challenges players to hunt cosmic birds with limited resources. Tips on gameplay mechanics and controls are provided.
- Экзамен
Summary of answers to Spectrofon #05 tasks, winners Sergey Semenov and Andrey Shkolnikov. Detailed solutions for 'ROBIN OF SHERWOOD' adventure game tasks. New challenge in 'HEROES OF THE LANCE' awaits responses.
- Обзор
An overview of recent software releases for ZX Spectrum on the Moscow market, discussing Elite-2's protection removal, Hero Quest's save issues, and a comparison of game charts from Moscow and Omsk.
- С миру по биту
Discussion on mail volume, software protection issues, and TR-DOS versions. Challenges in standardizing ZX Spectrum hardware. Invitation for collaboration on standardization.
- Система
Discussion on data bus instability when connecting a music coprocessor and an effective schematic solution from Moscow radio amateurs.
- Реклама
Advertisement for acquiring the SPECTROFON magazine, collaborating with authors and distributors, and purchasing hardware and software for ZX Spectrum.
