my ps2 was acting up with cdr backups (just backups, originals worked fine) so i thought i'd swap out the drive/laser assembly with a spare i had from another ps2 of the same model. i removed the 4 ribbon cables, replaced the drive/laser assembly and reconnected the ribbon cables. i was very careful not to damage any other existing connections.
i reassembled the ps2 and now it does not power up. i get no red light, the switch is on. i removed the 'new' drive/laser assembly and replaced the previous and did exactly as before with the ribbons. i reassembled it and it's the same problem. no power.
so the question is, what could cause this, and how might i fix it?
i thought it might be the power supply so i tried the previous power supply as well (although i don't know if the previous one is 'good') and nothing changed. no power on boot.
and YES the cord is plugged in =)
i've a v4. thanks for any help, i'm lost without my PS2
Check all fuses, Charlie's guides show you where those are on the motherboard. I mostly find the PS1 fuse blown out, (especialy when there's no power led). So check it out. Maybe something caused a little short on the board and that is the reason of your problem.
found out the problem. silly even. the reset / open drive switch was in backwards.
it turns out that the drive/laser assembly from the spare did not work. it would seek and spin the disc but never find anything. i don't know why this is, but maybe it has something to do with the different parts used. i have 2 v4's but so many parts are different from each other (like the reset / open drive switch).
thanks for the feedback.