27 Jan
2007
27 Jan
'07
12:46 a.m.
Tony Duell wrote:
They don't fry that easily, my comment is that the rest of the logic on a
DZ11 card is even more reliable, so that most of the (few) failures you
get are of the line driver/reciever chips.
So what *is* the correct replacement for line driver chips? Are there
any QBus prototyping boards available?
Gordon
1) 90-odd% of DZ11 failures are defective RS232
driver/receiver chips,
probably damaged by spickes induced on the RS232 cabling
If they fry so
easily, why not change the RS232 driver for something
like max 232?