Topic: Vga Cable More Compatible (Read 99 times)

dmx_wyrw · « **on:** May 21, 2007, 02:30:00 PM »

Hey is there a way to make the Vga cable with the sync splitter compatible with more moniters. I have a non sync on green moniter at home and i want to be able to use the same cable on a sync on green at school. But it may not be sync on green. perhaps if i add switches? to by pass the sync splitter.
I am going to school for computer electronics so feel free to be technical.

I'd rather keep it all in the same cable i have a good size box that the splitter rests in.

Thank you

FrostyTheSnowman · « **Reply #1 on:** May 21, 2007, 02:41:00 PM »

The sync-splitting circuit is compatible with both types of monitors, you do not need to 'un-split' the signal.

SOG monitors support both H/V (Sync-splitting) and also SOG signals, so if you build the Sync-splitting circuit, it will work for all monitors.

dmx_wyrw · « **Reply #2 on:** May 21, 2007, 02:54:00 PM »

Thanks for the fast reply. I have built the circuit. the reason i asked was another monitor that i have tried it on didn't work. perphaps it is the resistor. The monitor would flash on and off. and as for the moniter that works 720p is a little dark and 1080 is ghosted

FrostyTheSnowman · « **Reply #3 on:** May 21, 2007, 02:58:00 PM »

QUOTE(dmx_wyrw @ May 21 2007, 03:30 PM)

Thanks for the fast reply. I have built the circuit. the reason i asked was another monitor that i have tried it on didn't work. perphaps it is the resistor. The monitor would flash on and off. and as for the moniter that works 720p is a little dark and 1080 is ghosted

Yeah, the sync-splitting circuit has been known to be incompatible with some monitors, but usually messing with the resistor fixes the problem.

Have you tried a 470k resistor?

And as for the 720p/1080i issue, that would be caused by either wiring or your monitor simply not liking the widescreen resolutions.

Also, are you 100% sure that your monitor at home is not sync-on-green? Because you could actually wire the circuit incorrectly, and sync-on-green monitors would still work, but non-SOG monitors wouldn't... I've seen this happen many times before by people accidentally wiring the LM1881N chip backwards...

dmx_wyrw · « **Reply #4 on:** May 21, 2007, 08:12:00 PM »

That is interesting the monitor that works is quite a few years older than the one that doesn't so i don't think that its S-O-G. yes i am using 470k

FrostyTheSnowman · « **Reply #5 on:** May 21, 2007, 11:01:00 PM »

Have you double-checked you wiring to be sure everything is wired as it should be?

Author Topic: Vga Cable More Compatible (Read 99 times)