Messiah Red Screens

[cougar689]

I measured the CD and DVD 'pots' and they are both dialled down to 718Ohms so it does look as though it is 'refurbished'. Is there anywhere I 'can' buy a new 400B ? Or will I just have to put up with refurbished items ?

Do you think that the a refurbished laser would still give me the same problem ?

With all the other disks.. when I put one in it spins continuosly until the game starts. But with the PS2 backups the disk goes in, spins for a couple of seconds, stops spinning then the dreaded 'Red Screen' appears. It appears as though (I haven't seen this) this is what would happen on an unchipped machine, ie the machine doesn't recognise the disk so fires up the red screen. Can the 'Chips' fail to work with one type of disk (PS2) ? yet still work with others (PS1 Backups) ? Or could this indicate a specific problem on the chip ? or a wire ?