I have this problem with my barely used v10 PS2 with a matrix infinity modchip . I have modded several ps2 before and this is the first time with this problem but this is my first time at a v10. I also did the romeo mod. When I first modded the ps2 it didnt work, i heard the laser clicking, so I turned it off and rechecked my wires. I didnt solder the I,H,G,B,and A points on the legs properly so I resolder it and changed the gound point. Now it did work. I flashed the chip with firmware 1.38. My orginal ps2 and backup copies worked flawlessly. So I closed she up for the nite, did a final test and went to sleep. Came from school the next day turned she on, she came on. Went the the broswer screen checked my memory card and put a game to load. The ps2 frooze on the reading disc screen. Restarted the ps2 but just got a black screen. Opened she up and saw that one of the wires on the bios chip was loose. Resoldered it and turned she on. Now the ps2 will go into a screen that will display a language screen and when I press X it will take me to the time/zone configuration screen. The disc will not spin nor the red lite in the lens come on. Each time I turn it on it will go into this configuration screen. But I could disable the chip and also go into the configuration screen of the matrix chip. But when I disable the chip and load an orginal ps2 game the game will load, show the PS2 logo and then freeze on black screen. I thought it was the chip so I removed it and replaced the matrix with a Duo 2 S.E. It gave me the same problem by going straight into the same configuration screen. So I completely removed the chip and cleaned up the motherboard. Now it will load the ps2 original games but freeze on a black screen after the ps2 logo. The ps2 will load music cds. It will even freeze with a black screen on loading a dvd movie.
I thougth it was a laser problem so I removed the laser and tried it in a next v10 ps2 and the laser will work flawlessly. Lastly I noticed that when u go to the screen to check the ps2 version and driver version info by pressing triangle I am missing the line at the bottom which tells u the dvd player version.
I really need some help on this one. I really dont know what to do or try again . THANKS