[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Will it break my AppleII?
mores_p@hotmail.com wrote:
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.)
Machael:
Thanks a lot! That perfectly explain why my drive was like half
functioning and there was nothing on screen. But in this case, will it
break my drive or monitor?
This is not an experiment I have done, or would recommend.
You have done it involuntarily, and have had no ill effects.
That's good--be happy--and try not to do it again. ;-)
PZ:
According to your maintenance procedures, if i have 2 apple ii and 1
monitor, and i pull and plug the video jack between the 2 machines
(while all of them are on), is this action considered proper? It will
be inconvenient for me to have to turn off monitor and apple ii
everytime i need to switch the monitor to the other machine.
There is no problem of any kind in switching the video output while
the system(s) are on.
There is, however, a mechanical weakness in the design of the Apple II
video connector that causes the center conductor to break at the PC
board if an RCA plug is twisted when it is inserted or removed more
than a certain number of times.
This is unfortunate, because that is *exactly* the recommended way of
inserting an RCA plug for best contact. In the case of Apple II's,
just push it in and pull it out without rotation for longest life of
the main board connector.
If you plan on lots of connections/disconnections, use a switchbox
to save wear and tear (a "passive" one designed for audio is fine).
-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."