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Re: Will it break my AppleII?



mores_p@hotmail.com wrote:
In my childhood, i owned Apple II+ but really wanted to get a hand on
an Apple IIe to play more advanced games. Finally, 20+ years later, i
can have one, actually many right now. 8)

BTW, do you have any opinion about my first post? Is it possible to
cause a damage to a system??

Having one or more power voltages missing while others are present
*can* cause damage, but if the system is still functional, it's safe
to say that it didn't.

The most dangerous situation for an Apple II is to have +12v present
without the +5v, since there are paths for the +12v to raise the +5v
bus above 5 volts--but this is unlikely, since the +5 bus is pretty
heavily loaded.

It sounds like you had the opposite situation, with all voltages
present *except* +12, which is relatively benign in an Apple II.
(+12v is used for the disk drives and for the video output.)

-michael

Music synthesis for 8-bit Apple II's!
Home page:  http://members.aol.com/MJMahon/

"The wastebasket is our most important design
tool--and it is seriously underused."