On 3/5/06, Peter Bortas <[EMAIL PROTECTED]> wrote: > On 3/5/06, Dieter <[EMAIL PROTECTED]> wrote: > > You cannot depend on monitors having protection circuits. :-( > > If a monitor does have a protection circuit you cannot depend on > > it actually protecting the CRT. :-( > > You cannot depend on firmware/software doing something sane. :-( > > > > Therefore I recommend that the board have a method to set and lock > > down the mode in hardware. Jumpers and dip switches come to mind. > > I call BS on this. As far as I can tell this almost has myth status. > The only real case I've heard of in the last 10 years is a US TV set > that had to be rebooted after being fed wildly incorrect signals.
TROZ is capable of driving a TV. I designed it to do the interlacing right and everything. But we didn't get everything right the first time we put it in that mode and put out some wild signals. We had it connected to some really crappy TV, and as far as I can tell, when the signal was out of frequency range, the TV simply didn't lock on. It was no different from having no signal at all (static). The PLLs seem to have a very narrow range, and anything outside of that range is just noise, so the PLL just drifts around its default. But I'm doing a lot of guessing here. _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
