clanggedin
Member
I just bought an LCD for a Toobin I have that the monitor lost its purity rings and is out of convergence. I also purchased an EGA to VGA converter.
For the last few hours I have been trying to get this monitor to sync without any luck. The closest I get is a screen full of garbage. After doing some more reason on the forum it appears that my Toobin uses positive sync whereas the converter board on allows negative.
Is there a way to change the sync on the Toobin board? If not then does anyone know how I can switch the sync to negative? It seems some people have used a 74ls04 chip. Are these still sold at some radio shacks?
Does anyone know how I wire the 74ls04. So it will convert the sync to negative? I can't seem to find any instructions.
For the last few hours I have been trying to get this monitor to sync without any luck. The closest I get is a screen full of garbage. After doing some more reason on the forum it appears that my Toobin uses positive sync whereas the converter board on allows negative.
Is there a way to change the sync on the Toobin board? If not then does anyone know how I can switch the sync to negative? It seems some people have used a 74ls04 chip. Are these still sold at some radio shacks?
Does anyone know how I wire the 74ls04. So it will convert the sync to negative? I can't seem to find any instructions.
