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MI + Laser Fix –
Hope someone can clarify things for me.
Have just (last night) installed a Matrix Infinity (green spot) into my v12 PS2; all working fine so far.
I have now come across (I now know I should have done more investigation before) details of a possible problem with the laser burning out on the v12.
Okay my questions are:
1. The MI is "CD Lens Safe (Avoid CD lens damage by rerouting un-necessary signals)" ; does this negate the need for the laser fix?
2. If I still need the fix, is it a problem because the laser needs more power to read backups or is there another reason??
3. Any recommendations as to which would be the best solution available - they're all quite cheap (I notice some PIC chip versions).
4. Is it worth just ignoring the problem, waiting to see if my PS2 fails and if it burns out, replace with a new drive assembly; which I guess would have a better laser and not require me to mod the PS2 again? (new drive assembly is only 25 pounds or so - a one-off cost would be okay).
You may be getting the idea that now I have the MI going, I'm not over-keen on modding the PS2 further if it's unnecessary - a drive assembly replacement would be simpler. But if I will still have the same problem with the new assembly, then I may as well install the laser mod now.
Hope someone can help.
1) No, it doesn't
2) AFAIK the laser doesn't need more power with a fix
3) Just a PIC isn't enough. Good ones are summone or slimfix
4) Replacing the laser with a new one won't avoid it from burning because the problem isn't just the laser. I know lots of people who already burned more than 1 laser.
I'm using summone fix with 2 resistors in combination with a pic.
If you managed to install the infinity, you should be skilled enough to install a fix.
Great, thanks for the quick reply - I have gone ahead (before seeing your post) and ordered the comsoft slimfix v4 and hopefully that'll be enough to limit the chances of damage..? Saw that diode voltage limiting seemed to mess up CD-R/DVD-R(??) reading (or slowed it down).
Spent ages deciding whether to get neofix, just diodes, resistors, subzero, etc etc.. Hopefully I've made a reasonable (I wish informed) choice. Just annoying as I don't want to chance running the ps2 now till it's installed(!).
From what I read, this will shutdown the laser within 50ms or completely if mech or dsp problem for 200ms... How often is this likely to happen?
I guess if the problem only occurs between 50ms & 200ms, the laser is reenabled and I wouldn't know anything about it??
Sorry, but I like to know about these things :-) and there's so much (probably mis-)information on the internet.
The diode fix is crap. Comsofts slimfix should be a good solution. I'm also planning to use it instead of my summone fix.
The pic fix shuts down your console during mechacon crash, that's right. I can't say how often that happens. I think it depends on your console and used media. For the last 2 years, my console never shut down because of a crash. But maybe it was just luck. The pic is just the "second protection" of the fix. It's just a "worst case" shutdown.
So the comsoft has resistors limiting the voltage to the laser as well as the pic monitoring for dsp/mech crashes?
I see it also checks during boot as that's apparently when the problem is most likely to happen... possibly.
All I want is for the laser to last in terms of years rather than days or weeks
Hopefully this will ensure that (I can handle replacing the laser yearly or more).
I guess the chip slimfix will turn up tomorrow and I can fire up the blowtorch and solder it in. May cover the blue led as that may get quite distracting (by the looks of it on video).
Once all this is sorted, I guess a look at HDconnect is next..?
Thanks again for your help,
Yeah, hd connect is quite good. Also have a look at hdcombo. Looks a bit nicer because you can place the drive into the case.
Check install diagrams and figure out if you are able to solder this one. It's harder than a modchip and has much more soldering points.
Hd-gaming is really nice and increases laser lifetime.
That hdcombo looks very nice; will consider it - just a few more wires to connect on that one!
It's the soldering onto the ends of components and the vias that get me stressed!
Will wait and see how the comsoft fix goes for a while first
Have just realised I have a wide laser and implication from reading on these boards (comsoft posts) is that I need also to install the diode fix...! I'm getting pretty fed up with this(!). Way too much information that appears to contradict itself.
Only other option seems to be to buy the 802 laser assembly and use the laser adjustment cd... etc etc.
Why is this so much more annoying that chipping an xbox
Last edited by kevcal; 01-11-2007 at 06:35 AM.
Okay - decision time...
I'm going to install comsoft slimfix v4 and summone's 2 resistor fix (Rst=560 ohm or 2kohm & Rsf=4.3kohm) - guess this is the best course of action?
Final post on this hopefully -
I have installed comsoft slimfix v4 & it seems to be doing what it should - ie flashing at 1Hz.. so hopefully this'll ensure I get a reasoanable amount of time from the laser. Haven't adjusted the dvd pot as it was already quite high - 1340 ohms..
Have left of the resistor fix as it looks like it could get a pain reading some media; I'll just make sure I use good quality disks - little price difference nowadays.
When/if it fails at some point in the future, I'll replace the wide lens with the 802 assembly as the impression is that the laser is of better quality..
Thanks very much HomerX for the help