kpkube
Member
What would be a good list of IC's to have on hand for a Galaxian and Ms Pacman board repairs?
Which ones are the most common ones to fail?
Which ones are the most common ones to fail?
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Z80CPU, 2114 ram, 93422(2101) ram, LM1877, LS161, 7489 ram, sockets, LS245, LS377, LS158, LS159. A good assortment of all the common ttl and ram should be in your tool box if your going to work on pcbs.
Yep, they rarely used those crappy resistor networks on the pac boards. Although some do have them I dont think they take the abuse like they did on galaga because of their location.
For you guys wanting kits I just added a "build your own kit" app on my website. We call it a "shopping cart" !
Yeah eproms are a given especially on pac boards.
How about I come by with about 5 crappy Galaxian boards to your place and Frankenstein one good board that will roam the earth endlessly. Or I can keep you in business for the next year or so just buying parts I may need some day.
Using the list in this thread, i placed my 3rd order in a week with TwistyWrist! Maybe this set will allow me to get a working Galaxian board!
thanks for the detailed list, I've started my 'toolkit' chip collection.
The problem was the 74ls245, replace it and board boots and plays fine.
You don't need to blindly change chips out if you have a logic probe.