I have a v4 and the tray will not eject, the ba was blown and the fuse for was blown also, The problem is I replaced the chip fuse and bought a new laser and now the drive wont eject, if I take the cover off the drive and place a cd in there it will spin about a half a spin then stop and the laser does emit a red light but nothing else. I bought the same laser that was in the re and I desoldered the static solder on teh bottom of the laser, is it the BA chip down on the bottom left side of the board that is dead. I also bought a new v4 motherboard on ebay and the dude sold me a so called "100% working" board and when I got it I immediately tested all the fuses and the BA . LA chip is fried and the fuse also, paypal wont do crap about it, How can I test the BA on the bottom left to ensure it needs replacing, Thanks

I know I am an installer but I have never had this problem before, also any help would be appreciated,Thanks