Well the new laser units came in the mail yesterday. Forgive me, I know I should probably understand this by now but I've read so much the last few days, and I've never really tried this on my own. But I removed the anti-static solder blob and installed one of the new lasers in a 39001 to test, and nothing.
I did use lenschanger and create a backup eeprom file of the stock open face HD7 laser unit. I changed the laser eeprom setting to KHS-400C and proceeded to test a few cds and dvds, no results yet. It seems to try to boot some of the discs but hangs indefinitely where the PS1/PS2 boot screen should show.
I am guessing that I need to use a multimeter and follow this a few steps at a time:http://ps2parts.com/laser_adjustment.html
forgive my noobish-ness in this matter, probably been reading too much in this late hour.
Thanks all in advance,