Thanks Jr Jefyll. I was 13 when I won my first computer, and with 15, at the end of my technical school, I took 100 in microprocessor class because I had already studied previously, in technical and user documentation which came together with computer, the content of discipline. My computer is a TK3000 IIe, a brazilian clone of Apple IIe. You can see one like mine here: (http://www.youtube.com/watch?v=cuIaSV_E7a0). I don´t have in my computer all the interfaces shown in the video, but the monitor and base system are exactly the same. What happened with my machine was only a simple mouse problem: when stored, a mouse actually urinated on the processor chip, and the pins of cpu were eroded due this "incompatible accessory", literally falling apart. This "problematic accessory" also brought me a power cable problem (it chewed the power cable), but luckily the socket and the remainder computer's structure appear to do not have been functionally damaged (everything has been already properly washed); so my hopes yet survived. This machine has an advanced keyboard, compatible with portuguese language (ç, accentuation, etc.) An Z-80 is transparently and exclusively dedicated to control the programable keyboard (we do not have access to it via software). Here you can see its motherboard (https://commons.wikimedia.org/wiki/File ... _MA104.jpg) and here the block diagram: (http://www.tabalabs.com.br/apple/esquem ... igital.gif) and schematics (http://www.tabalabs.com.br/apple/esquem ... igital.gif). Here more about it: documentation (https://archive.org/search.php?query=tk3000); Wikipedia (https://pt.wikipedia.org/wiki/TK3000_IIe). I am happy to know I can find the 65c02. I will find a way to buy it; and restore my computer to work! So, that's why I love 6502 machine. And, sorry about my English: as you can see, it is not my mother's language. Thanks.

Well, there's no accounting for taste. Or maybe s/he mistook it for a 6800! (Just kidding -- 68xx chips are alright, but unexciting except for the 6809.)

In that case, the CPU socket may have been damaged as well. If so, you may be forced to replace the socket.

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In 1988 my 65C02 got six new registers and 44 new full-speed instructions!
https://laughtonelectronics.com/Arcana/ ... mmary.html