Hey I got a v4 ps2. It has the 400b laser. Im trying to adjust the pots. I got the cd pot at 700 ohms because I read somewhere thats where it works the best. It works fine on cd. I got the dvd at 850 ohms and its not working. All it does is spend for 30 seconds or more to tell me its a disc read error. Please someone help me. Do I have the dvd pots off? What should they be?