Category: Test procedures
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Determining the mainboard assembly number from outside the case
Determine the Commodore 64 motherboard revision without opening the case
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Testing Commodore 64 power supplies
Commodore 64 power suppliers should be tested before being sold off. In this article, I discuss test procedures, acceptance criteria and some of the concerns that call for awareness when using old power supplies connected directly to the power grid.
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Testing a Commodore 64
Before listing a Commodore 64, I conduct a series of tests. In this article, I explain my test procedures and equipment, and I take a deeper look at the acceptance criteria when testing products that were first released in 1982.
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Testing software
While cassette games usually still work even today, disk games have a considerable error margin. Original games vary greatly in price, meaning that the effort put into testing needs to have be reasonable. Here is what you can expect when I sell software. Disk games Disk games tend to be increasingly valuable but unfortunately also…
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Testing datasettes
Given the price tag, there is a limit to the amount of time you can spend on datasettes. Annoyingly, many of them come with minor issues like incorrect azimuth settings, dirty tape heads or defect drive belts, which mostly are easily fixed. But mostly isn’t the same as always. What “working” should mean In my…
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Testing floppy drives
Commodore’s 1541-family of floppy drives went out of sales decades ago. The drives that remain in working condition have surpassed their life expectancy multiple times. In this post, I share my thoughts on what constitutes a proper test before listing a drive for sale. A few notes about Commodore’s design Before we discuss test procedures,…
Categories
- buying and selling
- Computers
- dansk
- Datasettes
- Floppy drives
- Joysticks
- Not categorized
- Power supplies
- Repair Notes
- Test procedures
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1530 1531 1540 1541 1570 1571 assembly number azimuth; black screen Commodore commodore 64 commodre computer datasette disks drivebelt drive belt drive head hardware joysticks køb og salg mainboard power supplies r/w head refurbishing repair notes reselling retro retro-computing retrocomputere retro computers selling tapes testing original games test procedure warranties