So I've been trying to put together my own rgb cable for my ps2 and I've been having some problems. The monitor I'm trying to connect to is a wells gardner d9500 arcade monitor. It uses a 15pin dsub connector as any normal crt monitor would. It can automatically sync between 15, 25, and 31 khz. Playing mame games at native res is no problem.
Now, when I made the cable, I followed the standard lm1881n type circuit minus the 220uf caps on RBG. Now, if I leave pin 3 from the lm1881n disconnected from pin 14 on the dsub connector I get some output, but the picture is rolling on the screen horizontally with a "no sync" message from the monitor. If I connect this, I get a blank screen. I had hoped that the screen was just dim, but I can't see ANYTHING on the screen. Not even the slightest. Also, when playing games at 15khz through mame the monitor makes a certain high pitched noise that I definitely don't hear when I get the blank screen through the ps2 cable.
By all rights, this should work. I just don't know what I'm doing wrong. Can anyone lend a hand? I'm about to give up and send ultimarc a ton of money to make the problem go away...lol.
Thanks
Buy an Extron RGB interface off of ebay:
http://cgi.ebay.com/Extron-RGB-202-Univers...1QQcmdZViewItem (http://cgi.ebay.com/Extron-RGB-202-Universal-Analog-TTL-ECL-Interface_W0QQitemZ180054503691QQihZ008QQcategoryZ3319QQrdZ1QQcmdZViewItem)
Wire it up, and BOOM, you're done! B)
I had built an RGB cable for my PSOne, worked great for that console. I had hopes that it would work just fine for the PSTwo, but it had some serious issues.
Instead of using a LM1881N in the cable, I modified the PSOne mainboard to output the sync signal to the A/V connector. This is why the cable would not work on the PSTwo and I had to include the LM1881N and atleast one capacitor to the cable (green line).
Now the cable works great on any of the Playstation consoles I throw it at!