Re: Apple ][+ trouble shooting question....

[karl@hpcts.corp.hp.com (Karl Schricker)]

Mark Manning (mark@trillian.jsc.nasa.gov) wrote:
: At this point, if it doesn't boot, then one or more of the chips are
: bad.  Since the monitor shows a checkerboard on and doesn't boot I'd
: have to say that it sounds like either a video ram chip or one of the
: monitor rom chips are bad.

I just turned my old ][+ on for the first time in a couple of years,
and I got exactly the same result as the original poster (the lo-res
graphics checkerboard), except that my machine beeps.

I remember substituting a custom EPROM chip with lower-case fonts way
back in college, and from what you say above, it looks like that little
bugger could be what's causing my troubles.

I'll get the ole vacuum cleaner out though, just in case.  :-)

Any other ideas?


Karl