the latest v12 fix revision

[summ0ne]

After lots of testing i came to the following conclusions:

You have 3 types of laser lens burnouts:
A) The DVD diode burnout
B) The mechacon crash coil burnout
C) The tracking coil burnout during slow reading



A) The DVD diode burnout:
is the result of a manufacturing fault - the laser diode simply goes bad after too short of a time of operation. Some believe this can be delayed/prevented by decreasing the intensity of the diode - increasing the pot on the laser head.

B) The mechacon crash coil burnout:
When the mechacon crashes during patching of the bus by a modchip (bit error during patching) the laser lens driver chip outputs maximum possible voltage on the coils and melts the lens.

C) The tracking coil burnout during slow reading:
As the lens seeks and reads sectors, it does it by:
1) moving inside the laserhead (current flows thru tracking coils)
2) by moving the whole head (current flows thru the spiral motor)
During normal reading around the disc, the current varies thru the tracking couls and they should be able to take it.
But suppose there is a bad surface on the disc, where the lens takes longer to read it. If the tracking coil current in that position is great, it will flow long enough to melt the lens.





AND...
We have 2 types of fixes:
A) the current limiting fixes which limit on the input of the driver chip. examples: diode, zenner, summ0ne
B) the shutdown fixes which shut down the current completely either by shutting down the ps2 (matrix PIC, comsoft) or by just shutting down the driver chip (subzero)


What fix to use against which type of burnout?
- The DVD diode burnout - trim the pots on the laser head (not worth the trouble imo)
- The mechacon crash coil burnout - use a fast shutdown fix (comsoft, subzero) or a strong limiting fix (summ0ne) or any of the 2 types in conjunction (diodes, PIC, ...)
- The tracking coil burnout during slow reading - use a good limiting fix on tracking (summ0ne tracking part / zenner tracking part)

Possible fix bad side effects despite saving your ps2:
- summ0ne focus part (very picky on media brands)

A full solution with full safety, best performance and media brand compatibility:
- comsoft or subzero fix in conjunction with summ0ne/zenner tracking fix.



Lately this one is my top pick (i updated the install instructions according to my above latest theory):
http://subzero-chip.com/szX.jpg

[cakcetin]

Good explain Summ0ne,thank you....
About increasing dvd trimpot a little cannot save wide lens.I test it and failed.Picking disc not problem because after increasing dvd trimpot I wish pstwo stoped read crappy media,but it still trying read this crappy media and dvd diode burned again...All dvd trimpot have different value so I think increasing not usefull.Maybe we have a chance for straight dvd trimpot value???
I must report I see dvd diode problem in pvr802 lens too...
Sorry for crappy english;
Regards.

[ingsebastian]

Good explain Summ0ne,thank you....
About increasing dvd trimpot a little cannot save wide lens.I test it and failed.Picking disc not problem because after increasing dvd trimpot I wish pstwo stoped read crappy media,but it still trying read this crappy media and dvd diode burned again...

How much time the DVD diode was reading before die?

Tnx

[jpno1]

is the diode fix still working on newest ps2 with 100K res?

[cakcetin]

If you have any pic fix after 2-3 times shutdown dvd diode will die.

[Parisno]

The subzero fix includes a resistor for the tracking coils with 683 and 303 SMD's but nothing for 01d SMD resistor, and no protection for focus coils at all? Should I be fitting aditional resistors?

[summ0ne]

it does have a focus coil resistor - but i dont apply it

with the shutdown function there is no need to apply 4.7k or above :-)

it is better that way performance wise - and there are still no returns!

[SDU101]

If you have any pic fix after 2-3 times shutdown dvd diode will die.

I don't understand how PIC fixes that shut off the power can kill the laser diode? I thought the whole point is to shut down the power to everything, including power to the laser diode?

[robotpig]

So what kind of protection are we gonna get if just installing the subzero fix and nothing else?

[summ0ne]

If you just use the 3 point shutdown part - you get mechacon crash protection, but still susceptible to the tracking burnout.

BUT
if you use the pcb according to this diagram:
http://subzero-chip.com/szX.jpg

you get:
"A full solution with full safety, best performance and media brand compatibility:
- comsoft or subzero fix in conjunction with summ0ne/zenner tracking fix."
meaning:
- protection for crashes, for tracking burnouts and NO trouble related to focus channel limiting

[robotpig]

Anyone got a CLEARER pic as to what track I am meant to cut please? :)

[EspeN]

Yes the picture was a little unclear.

Im pretty confident its the point ive marked with a red dot (99% sure)
If im wrong, correct me.

Reason i say this is because i measure with ohm meter to the point at bottom left on subzero diagrams and it has full connection.

Also, the point is same as u cut on the comsoft solution (but then u cut at the other point).

[comsoft]

good explenation..

i also did my own test, and by using comsoft fix with diodes on wide lens and it saved the lens during crash.

in my opinion the combination of comsoft fix or subzero fix with summone fix is a good solution to wide lens.

[foreverjojo]

If i cut the track shown above and do not have subzero fix or comsoft fix, will my PS2 still function?

and will cutting the track save the dvd diode burnout?

Thx

[EspeN]

If i cut the track shown above and do not have subzero fix or comsoft fix, will my PS2 still function?

and will cutting the track save the dvd diode burnout?

Thx

Nope, if u cut the track the dvd will not spin at all.
After you cut the track and IF you solder a wire from the point on the picture bottom corner left on the subzero diagram to the red dot in my picture it will function again.

So you dont "destroy" your ps2 by cutting it since you can solder it back on by doing that. Same goes for comsoft fix.

[comsoft]

on my pesonal ps2 i had more then 6 crashes and it didn't die.

until now from all the ps2s i sold , not even one return.

i only had one return of someone i've modified hes ps2 and he had a wide lens.

since then i'm using combination of diodes and comsoft fix and it's working perfectly.

this combination is good solution for wide lens.

[foreverjojo]

Nope, if u cut the track the dvd will not spin at all.
After you cut the track and IF you solder a wire from the point on the picture bottom corner left on the subzero diagram to the red dot in my picture it will function again.

So you dont "destroy" your ps2 by cutting it since you can solder it back on by doing that. Same goes for comsoft fix.

Ok, so that means in order to prevent the diode burn out, I must apply either subzero fix or comsoft fix rite.

Its time to order these fix in.

thanks for the help :)

[NIGHTHAWK]

Summone:
In the diagrams it says "prepare via".. If i prepare it what should be the used i do for it ??..because there´s no link to other point with this via.
Regards.

[Parisno]

Summone:
In the diagrams it says "prepare via".. If i prepare it what should be the used i do for it ??..because there´s no link to other point with this via.
Regards.
You solder directly to the PCB, no wire!

[summ0ne]

it means you strip off the green enamel, cover the via with solder and wipe off any remaining flux :)

[cakcetin]

After I install both resistor turned back 4 wide lens in last two month.
Both resistor(560 ohm&4K7 Ohm) cannot save wide lens.Today I post picture of wide lens turned back with summone fix.
I hope Comsoft+diode or Summ0ne find certain solution for this crappy wide lens...

[summ0ne]

i applied subzero fix and has not come back.....

thenagain it was just 1 ps2 - not many wide lenses here:( ...or better yet:D

[masoud23]

hey summone wuts up... with all these new fixes and stuff... will your old summ0ne fix still work with the 1.8k ohm / 4.7 k resistors? on a pstwo? or do we need these new fixes?

[cakcetin]

Left side lens:Only worked a month if you look carefully can you see lens fall down slowly.This laser read media with high noise,sometime clicking and scratched many disc, sometime cannot read even original media.Coil value: 4.2 & 3.2 ohm
Right side lens:After two month with Summ0ne; can you see lens is fall down compeletly...Coil value: 4.0 & 2.7 ohm.
In the other picture I take off only lens(because I have 20 unit dead dvd diode lens) but shit, this lens have a milimetric spring adjusment and I cannot find complete value for change it with other lens.
I can say this;crappy media certain kill wide lens.So be carefull guys.
Note I see all system have mars pro chip(SE,SL) I have only 9 dead dvd diode with original MI+pic fix and a few system with MI SE.
Sorry for crappy English.
Regards.

[summ0ne]

hey summone wuts up... with all these new fixes and stuff... will your old summ0ne fix still work with the 1.8k ohm / 4.7 k resistors? on a pstwo? or do we need these new fixes?

sure, the classic summ0ne fix works 100%

But if you want more performance, then the new fix is better.

The bottom line.... i wanted to state that the resistor fix is still 100% safe.
But that the comsoft/subzero which do have better performance are not safe without the resistor fix on tracking. And that the resistor fix on tracking does not decrease performance significantly :-) thus the newest combo is the one that has both - safety and great reading performance

[playcmer]

summone, can you upload a clear installation diagram？

[EspeN]

Do the subzero fix have resistor fix on tracking ??
Or is that a own resistor you add?? (like the somm0ne fix?)

[summ0ne]

resize the picture to its full size, dont look at it in your small browser window - it is clear.

it does have the resistors onboard

[EspeN]

No offence, but the subzero fix diagrams is very very confusing.. And yes, i have resized it to full size. Four people in this thread has allready questions about the diagrams.. I will probably make a new one for my customers in hi-res when i get these fixes in this weekend.

You should reconsider making a better diagram, its easy for you since you know how it works, but stuff isnt so obvious for the rest of us.

[robotpig]

The picture is terrible. I even ZOOMED in using paint program and its no better either. Thank you very much for the picture you provided EspeN, it worked perfectly. The installation guide for the subzero fix needs work, its not what I or any of my customers would call user friendly.

[summ0ne]

well guys....

i am sorry for any inconvenience you had in following the diagram... personally i see the diagram as clear enough for looking up the exact points once you roughly know the idea behind it.
I just wanted to make it short and sweet as opposed to describing every move along with the basics of soldering on there:(

If anyone wants to have the honor of writing a dummy step by step tutorial, be so kind and share it here ;-)

[EspeN]

Yes, i will do that for my customers like I did with the "how-to-unscrew-gamecube-guide" in norwegian. I will make the subzero in english though.

The gamecube guide can be watched here (http://spillchip.com/gamecube/) (but it is in norwegian)

Ill post link to it as soon as it is done.

[summ0ne]

nice work EspeN and nice TV btw.

in the meanwhile i made the short version a bit less tacky http://subzero-chip.com/szX.jpg (removed all the confusing arrows and lines and made a frame around the text)

looking forward to your tutorial

[EspeN]

Thanks summ0ne. Im really happy with the pictures the camera provide, and its just a normal little camera.. its this one actually.. But i bet all digital camera's is good these days.

[EspeN]

summ0ne.

10D is what i have, so i dont solder any of the two first and dont close any jumpers.

How about those two solder that looks like part of summ0ne fix. Can i solder them to motherboard? They are not on your diagram.

[summ0ne]

the focus resistor you do not need.
and if the resistor on the mobo is 01d you do not need the tracking either

[EspeN]

the focus resistor you do not need.
and if the resistor on the mobo is 01d you do not need the tracking either

If i dont need tracking or focus, whats the fix for then?
I solder the focus though. Does it hurt to solder the focus resistor on ur fix?

Yes, i have 01d

[villasg]

A little question.
I have install big QTY of subzero fix ( no return) :)
But in some consoles after the install in the first or scond test ith dvd-r BLOW the PS11 fuse.
I replace with a little biger and all works like a charm .
Any info for this

[summ0ne]

A little question.
I have install big QTY of subzero fix ( no return) :)
But in some consoles after the install in the first or scond test ith dvd-r BLOW the PS11 fuse.
I replace with a little biger and all works like a charm .
Any info for this
Maybe you heat it for too long as you apply the fix. That may make it blow for no reason.


If i dont need tracking or focus, whats the fix for then?
I solder the focus though. Does it hurt to solder the focus resistor on ur fix?

Yes, i have 01d
The trick is in the 3 solder points that dont involve the "summ0ne fix" part.
Because it shuts down the CD/DVD driver as a crash occurs you do not need a fix with 4.7k. If you do not apply the focus resistor, the ps2 reads better and the other part of the fix still protects it.

[wmb88]

the focus resistor you do not need.
and if the resistor on the mobo is 01d you do not need the tracking either

I think we just simply replace the 303/683 with 100k resistor instead of adding 560ohm/2k on tracking coil?

[netriones]

Does summone fix protect against the DVD diode burnout ?

[vincentw56]

I installed this PCB board and checked everything. I did a test with the multimeter and everything is connected properly, but the DVD drive is dead. What's up with that? Any suggestions? Thanks.

[danwood76]

This is probably caused by the /INT wire
Check it and check that you havent burnt the resistor that the wire solders on to

regards,
Danny

[danwood76]

Maybe you heat it for too long as you apply the fix. That may make it blow for no reason.


Summ0ne I had the exact same problem
but it occured after around 45 mins

I replaced the fuse and all works fine
The replacement was a different fuse of the same value

I used a 63 instead of the 252

not sure if that has anything to do with it??

regards,
Danny

[vincentw56]

This is probably caused by the /INT wire
Check it and check that you havent burnt the resistor that the wire solders on to

regards,
Danny

Not sure what it was, but it is working now. The only thing I did was lift the motherboard off the work table while powering it up. It works like a dream that way. I am not sure what it is because the table has a mat on it for working on electronics so it is not shorting out. Ah, well, I will get it working.

Thanks,
Vincent

[summ0ne]

Summ0ne I had the exact same problem
but it occured after around 45 mins

I replaced the fuse and all works fine
The replacement was a different fuse of the same value

I used a 63 instead of the 252

not sure if that has anything to do with it??

regards,
Danny

you have dameged the fuse by heating it for too long while soldering to it.
nothing to fear here, just replace/bridge it with a thin piece of wire

[Phe0nix]

subzero fix in conjunction with summ0ne/zenner tracking fix.

http://subzero-chip.com/szX.jpg


Q1. Just purchased the Subzero fix and i was going to simply make my install
look exactly like szX.jpg you attached. By doing that will i have also done
the summOne/zenner tracking fix?

Q2.And to test the Subzero fix installation all i need to do is just not connect the green wire in your install picture and close all lid switches and if the laser
head doesn't move and it shines red then i can install the green wire and i'm
all done?

Q3. All i ever do with my meter is check for continunity. In the attached picture could you tell me what to set my particular meter on when doing
checks for 303,683 & 01d?

mine is separated into 4 sections

"DCV" ( 200m/2/20/200/600 )

"ACV" ( 200/600 )

"DCmA" ( 2/20/200 )

"horseshoe icon" ( 200/2K/20K/200K/2M/20M )


Thankyou !!

[summ0ne]

Q1. Just purchased the Subzero fix and i was going to simply make my install
look exactly like szX.jpg you attached. By doing that will i have also done
the summOne/zenner tracking fix?
yes, the summ0ne on tracking

Q2.And to test the Subzero fix installation all i need to do is just not connect the green wire in your install picture and close all lid switches and if the laser
head doesn't move and it shines red then i can install the green wire and i'm
all done?
yes, by doing that you have made sure that the track is really cut. another way to test is to use a continuity meter

Q3. All i ever do with my meter is check for continunity. In the attached picture could you tell me what to set my particular meter on when doing
checks for 303,683 & 01d?

mine is separated into 4 sections

"DCV" ( 200m/2/20/200/600 )

"ACV" ( 200/600 )

"DCmA" ( 2/20/200 )

"horseshoe icon" ( 200/2K/20K/200K/2M/20M )


Thankyou !!
you have to measure resistance (horseshoe=omega :P)
303=30k
683=68k
01d=100k
so that would be the 200k horseshoe section

or just use a magnifying glass and read what is written on the [???] component in the diagram

[Phe0nix]

Well worth the wait for your response. Thankyou for taking the time to answer all my questions. I have the continunity part down, so i'll verify i have the trace cut and check for continunity, thats a great peice of info as well all the other info. I'll be installing your fix tommorow. I've been waiting for a quality fix for quite some time now. The fix i was looking at kept going up in versions so i decided to stay away. Thankyou for all your research and for sharing a quality fix with all of us.

:dance:

[GeToChKn]

I have a couple of quick questions about the subzero fix as I'm doing my first v12 today.

1. In the attached image, we don't have to solder any of these points or bridge the connection in the middle (the ones with the red boxes around them)

2. In the instructions for testing where it says, close lid switches, what does that mean? If I put the lid on I can't see if the head doesn't move or the laser comes on too well. Do I use the toothpick trick like on the PS1's and if so, does any one have an image of where I should put something into to 'close the lid switches'.

I'm pretty confident I can do it no problem, I just like to get all the info before I start.

Thanks for any help.

[GeToChKn]

Ok, I think I answered my own questions.

1. The other points are for the resistor fix for the other coils which isn't really needed now for best compatibility.

2. This is to test and make sure the trace is cut. I can also do the same thing by using my multimeter between the two cut points.

Now here is my next question. I have cut the trace, and when I use my multimeter, i get a very very small reading. Now I don't have a continuity test on my multimeter, but I use the ohm testing section to see of there is a connection, ie when I touch both ends of the multimeter together, the needle floors it, meaning there is a connection.

When i test the cut trace, It gives a small reading on the multimeter on the lowest ohm setting, but does not floor it. Does this mean the trace IS cut and the small reading on the meter is just from where they are connected elsewhere through other traces on the board, or is there just a small bit of the trace that's not cut.

Also, does anyone have a picture of the lid sensors so I can test it that way if my multimeter reading can't answer one way or the other for sure.

[summ0ne]

one is on the mobo where the hinges of the lid are on the case, the other is on the little pcb with the power button and red/green led.

If you cut the trace, the ohmmeter must show the same as when you dont touch anything with either probe. if you didnt cut it, it will show the same as when you touch the probes with oneanother.

[EspeN]

Ok, I think I answered my own questions.

1. The other points are for the resistor fix for the other coils which isn't really needed now for best compatibility.

2. This is to test and make sure the trace is cut. I can also do the same thing by using my multimeter between the two cut points.

Now here is my next question. I have cut the trace, and when I use my multimeter, i get a very very small reading. Now I don't have a continuity test on my multimeter, but I use the ohm testing section to see of there is a connection, ie when I touch both ends of the multimeter together, the needle floors it, meaning there is a connection.

When i test the cut trace, It gives a small reading on the multimeter on the lowest ohm setting, but does not floor it. Does this mean the trace IS cut and the small reading on the meter is just from where they are connected elsewhere through other traces on the board, or is there just a small bit of the trace that's not cut.

Also, does anyone have a picture of the lid sensors so I can test it that way if my multimeter reading can't answer one way or the other for sure.

I get same as you.

When its cut its just small readings. Thats normal.
Put any point on the ps2 board with any other point and u still get small reading. So its not gonna show nothing, thats not normal.

So, yeah, its cut!

U can also try put the multimeter in the "cut" and u will see u get full connection again

[GeToChKn]

Ok, thanks. That's what I figured. Now my problem is that I get no movement from the dvd tray or the laser at all. I attached the wire, etc but I get no red light from the laser and when I attached the wire, same thing. It doesn't spin and I get no red light. :( Any ideas?

[GeToChKn]

Ok, small update. I have the subzero fix in, the wire is attached. I haven't put the modchip in yet. Now if I turn it on and press both the hinges, the laser assembly moves into position, the laser itself moves a bit, it shines red for a second and than stops. That seems normal when there is no disc in. If I put a disc in though, it doesn't spin at all. Anyone know what could be causing this???

[summ0ne]

either a dead spintle motor or a fuse (check ps11 and ps13)

[ivandiz]

Everytime I try to access the subzero link it comes up with CANNOT FIND SERVER. Is the site still up?

[GeToChKn]

I just clicked on both links in sumMone's tag and they both worked fine for me. Wish I could say the same about my pstwo. I don't think the motor should be dead, it worked minutes before I put the subzero fix in, and I haven't modded it yet. I thought I checked all fuses, but I'll check again.

[ivandiz]

It works now!! So where can I get one of those Sub-Zero fix boards at?
I don't know if you're allowed to post it, but if anybody could PM me a link or info, I'd appreciate it.

[ivandiz]

Wow, don't everyone start sending me those PMs all at once now. LOL
I went to Modchip.ca & saw a FXii board for sale. Is that the same board as the Sub-Zero board? C'mon people, throw me a bone!! (That's my best Dr.Evil impression......it's sad......sigh)

[dungbeetle46]

You can buy them directly from summOne as he produces them or divineo.cn or affiliates depending where you are. they are cheap too, I have installed around 30 and not a single problem yet except for the time I forgot to connect the wire and spent ages wondering WTF was going on. I also use the h2o mod now by summOne which already has the fix on the chip.

[summ0ne]

Everytime I try to access the subzero link it comes up with CANNOT FIND SERVER. Is the site still up?
try http://d-vices.com/subzero/

[GeToChKn]

Can someone help me understand why my drive won't spin? Fuses are fine, laser works, but the spindle won't spin. The drive worked right before I installed the summone fix and I haven't put the modchip in it yet. I may try uninstalling the summone fix and rebuild the trace wire that was cut to see if I can get it back to stock, I just hate trying to desolder. :S

[EspeN]

Can someone help me understand why my drive won't spin? Fuses are fine, laser works, but the spindle won't spin. The drive worked right before I installed the summone fix and I haven't put the modchip in it yet. I may try uninstalling the summone fix and rebuild the trace wire that was cut to see if I can get it back to stock, I just hate trying to desolder. :S

Been there, done that. You prob fucked up the smd resistors.
Search for my name in simular threads and u will find answers.

[dungbeetle46]

Can someone help me understand why my drive won't spin? Fuses are fine, laser works, but the spindle won't spin. The drive worked right before I installed the summone fix and I haven't put the modchip in it yet. I may try uninstalling the summone fix and rebuild the trace wire that was cut to see if I can get it back to stock, I just hate trying to desolder. :S
did you install summ0ne fix or subzero fix
if subzero did you connect the wire
if subzero or summ0ne check all resistors
sorry just reread you cut the track so must be subzero you dont cut it with summ0ne fix
check fuse that you soldered to and check you have all the right ohms on smds and the wire

[discorocity]

I installed the fix and it reads audio cd's and ps1 cd's. The load times are pretty slow. It however does not read any dvd media. The laser also sounds like it is hitting the physical disc. Any ideas. Thanks

[GeToChKn]

Well I'm going to try and take off the subzero fix and see if thats my problem with it not spinning. If i did fry the smd resistors, i was going to replace them but my Radio Shack did not have 30k resistors. The color should be orange-black-orange, but the only ones they had were 33k resistors, orange-orange-orange. This is going to be too much. Can I add a combo or two resistors to obtain it? Radio Shack (Now The Source by Citcuit City) is the only place in my city that even sells resistors, so i'm sorta stuck with what I can buy. I got a crapload of other ps2 boards that I could probally find some 303 resistors on but I haven't had good luck resolding smd resistors back into place.

[discorocity]

got myself going. I didnt have the track cut all the way. Its deeper than i thought.

[EspeN]

oh. Didnt u measure with multimeter ?

[EspeN]

If u manage to fuck up the point to the subzero fix that you solder directly to the subzero pcb (that is linked to the trace u cut) here is a alternative point. I fucked it up and measure with multimeter and found this point on other side of the board. Might be easier to connect to this.

[pstwo4u]

I was thinking about all the fixes:

slimfix V3 -> not available anymore
slimfix V4 -> annoying blinking blue led , which stays always on

The best combination I think is:

V12 with 303 resistor :
- Subzero fix
- Summone fix with 560 Ohm for tracking coil
- Summone fix with 4700 Ohm for focus coil (not really necessary)

V12 with 683 resistor :
- Subzero fix
- Summone fix with (560 + 1500) Ohm for tracking coil
- Summone fix with 4700 Ohm for focus coil (not really necessary)

V12 with 01D resistor :
- Subzero fix
- Summone fix with 4700 Ohm for tracking coil (taken from the Subzero + Summone PCB fix, which is acutally ment for the focus coil. I connect it with 2 extra wires.)

The SPU Sanyo lens in the V12, I always replace it with lenschanger by the PVR lens.

Summone, can you or someone else respond on this.

Regards,

Ed
pstwo4u

[summ0ne]

I use the subzero fix + tracking only on 303 and 683.
lenschanger is fine :-) for sins from the past

now that i clean the resistors after i solder to them - no burnouts at all!

[kahnazhu]

While installing the summ0ne fix I lost the smd on the mobo where the wirre connects to. From what I can see there are no values marked on the smd, can anyone tell me what is is please? (pic included)

[Spajk]

what resistor to use for V14/15 someones laser fix ? and how to connect ?
thanx
spajk