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Apple //e Upgrade Failed?
- Subject: Apple //e Upgrade Failed?
- From: "Bryan Parkoff" <none@nospam.net>
- Date: Tue, 28 Feb 2006 23:05:33 GMT
- Newsgroups: comp.sys.apple2
- Organization: SBC http://yahoo.sbc.com
- Xref: g2news1.google.com comp.sys.apple2:5207
I have unenhanced Apple //e. The model is A2S2064. The serial number
is 1A2S2-D44 0HDK A2S2064. I replaced from original video ROM chip to new
one which it includes MouseText, but it is still in unenhanced Apple //e.
It is working fine.
I tried to swap from 6502 CPU to 65C02 CPU while CD-EF ROM chips are
still unenhanced Apple //e, but it failed to work. The screen is black
nothing. Also, I tried another 65C02 CPU from Zip Chip to be installed. It
did not work and the screen is still black. It works fine on Apple II+.
Do you have a clue what it is causing? If I get it working correctly, I
will swap CD-EF ROM later to be enhanced Apple //e.
Bryan Parkoff