Slow bootup with R-Type Laser on V5

[darklegion]

Hello people,this problem has been mentioned around here before but never solved so I would like to hear if anyone has figured it out.Basically what happens is that the spindle of the laser will spin slightly on bootup,in a few slight turns and then sit at the browser screen.Around a minute later it suddenly spins up and boots normally both with backups and originals and on 2 different modded r-type motherboards.To me it seems like it may be the cable running from the spindle,it is slightly bent near the end,although you would think that it would not work at all in that case rather than only after a minute.Any other ideas? I hope it is not the cable as that will be a real pain in the arse to fix....I could easily just swap the laser into another assembly although thats a good waste of a perfectly fine assembly.

DL

[T07N]

Hello people,this problem has been mentioned around here before but never solved so I would like to hear if anyone has figured it out.Basically what happens is that the spindle of the laser will spin slightly on bootup,in a few slight turns and then sit at the browser screen.Around a minute later it suddenly spins up and boots normally both with backups and originals and on 2 different modded r-type motherboards.To me it seems like it may be the cable running from the spindle,it is slightly bent near the end,although you would think that it would not work at all in that case rather than only after a minute.Any other ideas? I hope it is not the cable as that will be a real pain in the arse to fix....I could easily just swap the laser into another assembly although thats a good waste of a perfectly fine assembly.

DL

Slow reading means that the laser is worn out. V5 is pretty old... Couple years of use is probably the lifetime of the laser. Not to mention those lasers are bad anyways.

[darklegion]

Okay here are some more things I have tried that haven't fixed it:
Tried swapping in C-Type Laser on a seperate assembly(to eliminate possible problems with spindle and motor or the cables) and the behaviour is pretty much the same although dvds obviously won't boot without the c > r modification.PS1 games seem to take a lot longer to boot too,3 minutes around.Next I tried swapping in another power supply and changing the power cable...didn't help.
That leaves either a coincidential problem on both mainboards or both dvd-drives
I'm leaning towards something on the mainboards because the drives work perfectly fine once they boot.One cause could be that I the heat pads on the ba65 chip lost their adhesive(on both of them) and so I had to tape them down with electrical tape,however I left plenty of the pad bare so I would think that it wouldn't be affectings that much.....also this would cause issues after it has heated up rather than bootup.
Another idea is that the one of the points on both chips was badly soldered,and If so I should be looking at the vias on the bottom of the board,correct? (One has a duo and the other has a magic 3.1)

Any other ideas?

[Fatman514]

Try out my laser repair guide...
http://ps2newz.net/forums/showthread.php?t=25854

[darklegion]

I've seen it mate and please stop replying to every post with it,we all know it is there now...perhaps a sticky with links to repair related sites would be useful .That guide only really applies to < V3 lasers too,as the cog is not used on the later model lasers.Later today I will scope out the boards and try and figure this out,haven't had any time last few days.

[T07N]

No picture guide? Boo...

I think shadowknight already brought something better to the table:

http://www.cyber-mag.com/station/laserPS2.htm

[darklegion]

Okay now I have tried removing the modchip on one of the motherboards and swapping in a 3rd laser,neither of which have helped anything.If the problem is motherboard based,I assume I would be looking at the BA chips,does anyone know what standard voltages are for each pins so I can test them with a multimeter? (better yet would be specific pins I should be looking for) On the laser side I am going to try a 3rd assembly and see if that does anything although again it seems unlikely.I'm also going to try wiring up an external PC power supply to eliminate any slight chance that it is the PSU.I am also getting in some more ps2 parts to test and hopefully I'll be able to narrow it down then.Oh and BTW in case this information is of any use,the spindle spins a few revolutions when there are no discs in the tray which suggests to me that it is some issue between communication between the motherboard and laser rather than spindle or motor issues.Any other ideas would be greatly appreciated.

Thanks

[T07N]

Don't bother with the power supply, you're just gonna waste time in my opinion.

What modchip are you using anyways? I think it's the modchip.