Ok I got a brand spanking new PS2 v7/v8. It has a gh-022 mainboard so is it v8? I got a dms3 v2.0 and installed it yesterday. When I went to try it out I got a black screen. When I held eject to boot to stealth mode it booted fine. I then checked all the connections resoldered the power and ground and tried again. It booted up this time and would take a couple seconds for the browser to appear. It played psx backups ps2 originals but no dvd movies or ps2 backups. I messed around with it some more and resolded the dvd cd controller points and bios points. Now it would only give me a black screen again.
I have now demodded the ps2 and removed all the wires cept for the scex one I just put electrical tape on the other end(It looks perfect and I didn't want to mess it up by removing it). I plugged the ps2 back in and powered it up and the browser came up. Now when I restarted and every time after that all I get is a black screen. The power and eject buttons function fine when a disk is inserted it reads it and continues to spin but nothing comes up. I checked all adjacent bios pins with a multimeter in resistance mode to see if there is any solder bridges but I didn't find any. While typing this I have been testing the ps2 to provide an informative post. I just powered it on and got a blank screen I then inserted a gameshark disk and when the tray closed the ps2 browser screen came up it then attempted to boot it but nothing came up. I then removed the game and powered it off. Then i hit power again. Black screen again. This time when I hit eject the browser screen came right up. I've now tried multiple times with different turning on and off techniques with and with out games and all that I get is a black screen. grrr. I hope someone will be able to diagnose my problem.