#RB text display problem
3 messages in this thread
Are there any hardware experts out there who can help?
My Rainbow motherboard seems to be developing a problem with the video.
Anything displayed in reverse video blinks about every second, changing to
underlined and then back to reverse video. Also, if I use smooth scroll,
there is text left on the screen when scrolling.
Is there a likelihood that this may be a bad ROM which I might be able to
replace, or am I left with the option of buying a new board? I have a
second board which fails for other reasons that I can use to cannibalize
for chips.
Any ideas? Thanks.
Joe
Pretty amazing symptoms. Before you get more sophisticated help, you DO
know, don't you, that the solution that solves 75% – 85% of ALL Rainbow
motherboard problems is to remove the motherboard, place it on a surface
that supports the board itself (like a blotter or pad on the edge of a
table, with the back mounting hanging off the edge of the table), and
reseating all the socketed chips. Reseating is pressing gently but firmly
on each side of the chip, down into the socket. While you're at it, blow
off all the dust.
Unfortunately, that hasn't solved this problem. I've made it a habit to
periodically (every 6 to 12 months) open up my Rainbow to blow out all the
dust and in the process to reseat the chips on the motherboard as well as
the other boards. I did all that recently when the problems surfaced.
Thanks for the suggestion, though, Willet.