Continued... Slim PsTwo problems...

[loy]

The other thread was getting to big so this will be the new one...

[tonybangbang]

CHIP OR NOT TO CHIP

man i wish i keeped my old ps2 a v4 chipped with a messiah 2


now i got a v12 and games are costing me a fortune :( i want a chip that works without nukeing my lense

[MajinBuu]

CHIP OR NOT TO CHIP

man i wish i keeped my old ps2 a v4 chipped with a messiah 2


now i got a v12 and games are costing me a fortune :( i want a chip that works without nukeing my lense
Wow did you look anywhere before posting this?

[tonybangbang]

theres just so much talk about the v12 who do you believe ?

and yes i been looking all over theses forums reading up on this subject

[tonybangbang]

i think the summ0ne's fix v12 looks and sounds good but am no expert ive chipped afew ps2's and xbox's been doing it since the old 12c508 days

the v12 looks very easy to mod wot puts me of is all the talk of blowing coils and nukeing lenses

bad enought paying £99 for a ps2 then £40 on a mod just to nuke the bloody thing

[ITMASTER]

I think SONY recocknized problem and they are manufacturing already solved that problem becasue nodays PSTwo's in russia region working ok without fix ..
Also I can't understand reason is for blowing laser moding or it was blowing even without modchip..

[Falkenfluegel]

new pstwo versions are no solution. there are a lot of guys with an old version out there. i have a v12 already modded with matrix pic fix but i can t use it because i m afraid it goes to hell. a friend of mine had exactly the same mod and it s dead already. the pstwo realy sucks with modding.

[Emanuel]

I think it is perfectly normal for modded PS2 consoles to blow more often compared to the unmodded ones. One important reason is because you use backups on modded consoles, and especially game backups. DVD-R movies don't really make any difference. I'll explain why.

I have repaired many lasers, replacing laser diodes or lenses and making all kind of adjustments to the lens position. I have observed that especially on backups the Playstation drives the tracking coil with increased power.

More importantly, there are situations when the tracking coil is driven with continuous current in only one direction for a long period of time and with a relatively high voltage. The tracking motor is not used to help the lens revert to the center position and so to be driven with a low voltage as would be normal.

Also, when the CD or DVD is ejected, it happens that the tracking coil remains biased in one direction with no disk inserted until the Playstation is turned off. This causes the tracking coil to get warm.

On DVD movies, the tracking coil is hardly used because there is a lot less disk seeking than at games. So that's why the unmodded consoles last longer. Simply because the tracking coil is not stressed by game copies.

The solution is to limit the gain factor of the amplifiers that drive the tracking coil. Sony has figured it out and now the tracking coil is safely driven with relatively low voltages.

[wmb88]

Very good analysis ! I'm just wondering is there any burnout from those mobo which have the 68k resistors on tracking channel? Sony has made a big gain drop at tracking channel by increasing resistors from 30k to 68k. So actually much less power was needed to drive the tracking coil! If Sony's fix works, why we need other fixes?

[ITMASTER]

wmb88 I am saying the same because a lot of my customers already installed MAGIC KX from different regions Australia,Russia Gergoia and all saying that NO blows I think this is from PS2 releases first ones was defected and now SONY fixed that because my customers staerted installing just 25days ago and I thing that time SONY shipped new slim pstwo's already fixed in factory..

[Gradius]

So PSTwo with date code 4D (aka october, november or december 2004), were FIXED at last ?

Gradius

[loy]

no

[BST Console]

date code has nothing to do with it

[tjtownz]

BST is correct, and thanks to BST for his help in determining the model of my V12 board, and his efforts to help a fellow member out. I have a date code 4D on the sticker of mine, but it is infact a v12.0 board.

I hooked the power/GND points back onto my chip and took off the someOne fix and put the full Foundmy fix on there and I am happy to say my Slim PSTwo is working great, no problems at all with flashing the chip, and no freezing or browser difficulties.

I think I was having difficulties with it going back to the brouser on my first instal because the Crystal chip was not flashed. I was hesitant to try it again since they did post on their site that a bad batch of Crystal Chips was produced and this chip I have matches that batch, but so far so good. Got 6 hours of continious play on it and its still going strong.

[Gradius]

date code has nothing to do with it

Well, I think this because...

"THE DEVICE - Our V12 Fix

- UPDATE if your PSTWO unit is a 4D model you may not require this, do email us back first! "

@ foundmy

Gradius

[BST Console]

Some are some arent. You have to look at the resistors to tell. I am sure that all of the PStwos that are shipping now are v12.1.

[wmb88]

Some are some arent. You have to look at the resistors to tell. I am sure that all of the PStwos that are shipping now are v12.1.

BST console : Any burnout from those v12.1 with/out fix?

[BST Console]

Ya, fraid so. Out of the 4 that Ive tested with crystal-chip/no fix 3 have issues. Not as bad tho, there is no laser melting, black lense etc. But I do smell it each time it happens. I am guessing that its just enough to coat the laser with a glaze that cant be wiped off. I have tried to clean the laser afterwards with no luck.

I can also say, that the 12.1's that I have tested with magicvkx+/no fix are all up and running still. No issues as of yet.

Every 12.1 that I have applied 1/2 of the foundmy fix to, is still running 100% with CC/Ripper3.1/MagicV/D4lite etc. (about 25 units)

[villasg]

One laser off with MX4 + matrix pic + diode fix.
No black lense but no reading anything

[Gradius]

v12.0? v12.1? Is this a new labeling system? :P

So, 303 is v12.0? and 683 v12.1 ? Now I'm confuse.

Gradius

[Gradius]

I did a search and found out already.

I got an 4D and they are 303 resistors (30k). :(

This is the only one difference between PSTwo until now? 303 (30k) and those with 683 (68k) ?

Gradius

[tickford]

This is the only one difference between PSTwo until now? 303 (30k) and those with 683 (68k) ?

As far as people can see,yes.

I would still do a fix(like the summone fix) on the V12.2(or whatever people call them now) to get the power going to the tracking coils the same as a V12.1 with a sommone fix. ;)

[Takashiii]

I have a couple of PStwos dated "4D". I just fried two of them with Someone's fix. I believe I've done something wrong or that the 4D Version does not incorporate with someone's fix. However I still believe that someone's fix works as I can't deny all the success that everyone's having with Someone's fix.

Here's my case:

PStwo dated 4D with 683.
PStwo dated 4D with 303.

Not being smart by reading thru the entire thread I rushed into installing a 560R resister on the 683 unit and boom it fried the lens. I took off the mod and someone's fix and nothing would load. The lens does not look black nor it looked foggy. (White lens). However I did find that fuse (PS14) was blown. So this is totally my fault.

With the other unit I have. Also dated 4D but with a 303 cap I decided to put a brand new 560R resistor in after reading the entire thread and only to find it did the exact same thing. Nothing loads now with no chip or fix in the system. Notice both incidents occur for only about 5-8 seconds hence I don't think I have completely killed the lens yet.

I'm a little lost on what to do next. I have another machine now dated 4D with a 683cap and I'm temped to try it with a 1.8k cap. :(

Also, I made sure the resistors had the correct color pattern. And I know how to tell if the system was 12.1 or 12.2 (By the difference of 303 and 683) but these machines you guys spoke of are all dated 3C and 3D. Has anyone with a 4D machine with success while using someone's fix? :(

[BST Console]

As far as Im concerned, there is a v12 and a v12.1
v12 being 303
v12.1 being 683

Can we all please agree on this

[GTZ]

Yeah, I dunno where the 12.2 came from, but as far as I'm concerned there's only a 12 and 12.1 (303 and 683) that use 560R and 1.8K resistors respectively for the summOne fix. I'd also like to add that I've had 2 PSTwo's running with Crystals, a 12 and 12.1 for 8 days and 4 days, both with summOne fix, no problems.

Cheers,
GTZ

[PitaBread]

I have a couple of PStwos dated "4D". I just fried two of them with Someone's fix. I believe I've done something wrong or that the 4D Version does not incorporate with someone's fix. However I still believe that someone's fix works as I can't deny all the success that everyone's having with Someone's fix.

Here's my case:

PStwo dated 4D with 683.
PStwo dated 4D with 303.

Not being smart by reading thru the entire thread I rushed into installing a 560R resister on the 683 unit and boom it fried the lens. I took off the mod and someone's fix and nothing would load. The lens does not look black nor it looked foggy. (White lens). However I did find that fuse (PS14) was blown. So this is totally my fault.

With the other unit I have. Also dated 4D but with a 303 cap I decided to put a brand new 560R resistor in after reading the entire thread and only to find it did the exact same thing. Nothing loads now with no chip or fix in the system. Notice both incidents occur for only about 5-8 seconds hence I don't think I have completely killed the lens yet.

I'm a little lost on what to do next. I have another machine now dated 4D with a 683cap and I'm temped to try it with a 1.8k cap. :(

Also, I made sure the resistors had the correct color pattern. And I know how to tell if the system was 12.1 or 12.2 (By the difference of 303 and 683) but these machines you guys spoke of are all dated 3C and 3D. Has anyone with a 4D machine with success while using someone's fix? :(

did u put tape around the contacts so it doesn't touch any other metal such as ground? i heard it's really easy to touch some other metal contact and boom there goes ur laser.

[Takashiii]

I fail to mention that I'm using NH9 and Modbo on these systems. I thought that was an issue, but I thought I should try a brand new system with no mods with only someone's fix to see if someone's fix is working. So yet my 3rd dated 4D machine with GH-xxx-71 mobo on and the caps read 683. So automatically I decided to apply the 1.8k resistor on. Keep in mind, no modchips installed whatsoever. I turned on the system. spinned funny for about 5 seconds. Then right away I knew it doesn't look right. So I took off the fix and tried again. Nope. Dead lens. And oh ya, I was wrong about the dead PS14s. They're fine.

And yes, I do have tape around the contacts of the resistor. I mean I made sure it wasn't touching ground or anything like that.

There goes my 3rd ps2. :( Really could use some help now.

[Gradius]

My model is 70012 and the laser is a KHM-430 model.

Can someone read me the values on variable resistors for CD and DVD ?

Mine is:

CD: 345 ohms
DVD: 912 ohms

To me is DAMN lower compared with any PS2 model (was around 1.2k to 1.5k).

Gradius

[Gradius]

Very weird, the MAX values possible are:

CD: 1950 ohms
DVD: 2150 ohms

PLEASE, someone check ours CD & DVD values. I need to confirm if my values are fine (345 & 912) or not.

Gradius

[Gradius]

Both coils are exaclty 5 ohms, so I think is normal that lower new values, if this is true and confirmed, no wonder it fry so easily now.

Gradius

[tjtownz]

I think he may have stated if you have date code 4D to contact him because it may be a different version. But if its the previous, its probably most likely a v12.0.

[ShadowKnyght]

My model is 70012 and the laser is a KHM-430 model.

Can someone read me the values on variable resistors for CD and DVD ?

Mine is:

CD: 345 ohms
DVD: 912 ohms

To me is DAMN lower compared with any PS2 model (was around 1.2k to 1.5k).

Gradius

Might be worth while adjusting an unmodded V12 higher and seeing if it will still read at higher pot settings - if so that may help...

But I doubt it - the circuit that the pots work in may just be different - same was seen in reverse with V9's and V10's with the open face lasers - i.e. 1500 to 1800 ohms factory settings compared to as low as 600 with the V3 400B lasers!

Just a thought - all these people using a programmed PIC to monitor the voltage / current level... any one thought of doing this using a simple cheap OPAMP? (no need to program)

i.e. http://home.maine.rr.com/randylinscott/OPAMP2.GIF

Using the Inverting comparator configuration. Cut the track you are trying to limit - attach one side to V+ which will effectively become "High", the output to the other end of the cut track...

Connect Vin to a reference rail - i.e. find a voltage rail sitting at a level you don't want the line to exceed. Then connect Vref back to the same place you connected V+ to.

This will monitor the voltage level and when it exceeds the chosen cut off level it will shut down the output. Could use it to switch a transistor, relay or fet if the current required exceeds the output capability of the opamp.

Whilst it is below the cut off level it will put on the out put the normal signal. You could also monitor current instead of voltage by using a resistor and measuring the voltage drop acorss it to determine current flow....

Only problem with this is that it will cut off the output completely and not just limit or clamp the level to a maximum... but this is what the PIC does from memory anyway...

Disclaimer: - Again (like with the Zener diode idea) I am just tossing up an idea so please read my dribble at your own risk etc etc... :(

[Gradius]

ShadowKnyght, yes, I remember that about v3 and olders models. But still, I'm wondering what's the CD and DVD values on pots just to compare (from another PSTwo of course).

Gradius

[dfect]

Does anyone know if the vanDrunen fix does work in "test mode", as the orginal Matrix Fix, connect pin 4 to GND instead of point K?

[ideas_man69]

yeah it does. thats what im using

[Drap]

anyone tried Ripper IV Chip on pstwo?

[ddzc]

So is anyone having any problems with a modded slim? if not, what was your method on fixing it?
There's quite a few modded ones out there with no problems..

[tjtownz]

I have one with the foundmy fix and a crystal chip and its working fine with no problems. Im doing another this week with the same fix and same chip.

[ddzc]

Where is the foundmy fix?

thanks

[NEWCASTLEmodchi]

huh? www.foundmy.com

[ideas_man69]

just use the summ0ne fix.. you cant go wrong.

[OttawaMods.com]

its also quite a bit cheaper (2bux vs 2cents ;))

[mollar]

I use the Crystal and the just the sommone fix.

works like a charm

[SDU101]

I don't know if this has to do with anything, but are all v12 boards all GH-035?
I just picked up a new UK PAL slimline (finally in stock), opened it up and the board says GH032? Well the resisters are "683" so I will go ahead and apply a 1.8k resister for the some0ne's fix. I've already took a picture of the mainboard but my flashcard reader is at my brothers place so I will upload when I get it back.

[anarchy2007]

I have done about 20 of the new slim-line (K Chassis) consoles with the Matrix Infinity and Matrix PIC12 fix. Not once could I get any of these consoles to turn off or to crash so that the Pic turns it off. I ran 1 console for over 35 Hours and changed disks very frequently, with another console I reset it about 100 times within 1 hour and still nothing. I have tried every thing and every way until today.

I accidently swapped point W with T and R with Q and what do you know every time I close the lid to read a disk (CD or DVD) the console turns off within a second. I tried with another console and it does the same. This could be a nice way to test all the diffirent v12 fixes that are out there, I can say for certain that the Matrix PIC12 fix does work very well.

[qwm]

I have done several tests of protections and fixes... the most reliable that I could test is this one showed in the pic.
I don´t do the switch-fix because I think it doesn´t work. The laser unit do not burn only with resets, I have one case that the laser burned in-game.

[Gladiator]

I have done several tests of protections and fixes... the most reliable that I could test is this one showed in the pic.
I don´t do the switch-fix because I think it doesn´t work. The laser unit do not burn only with resets, I have one case that the laser burned in-game.

Just out of curiosity that in-game case burnout had which fix installed?

[qwm]

With just the diodos... without pic.... maybe if this little fellar had the pic installed, the laser unit could be safe.... ah, fortunaly isn´t one of my install .... I'm lucky until now...

[mikearama]

@ gwm... interesting job on the S wire in the picture. I see it's not connected to the S contact on the chip. Can I ask the rational behind your placement?

[qwm]

ops... the S wire it´s always the last one I connect... I take this picture before solder this point....

[ivandiz]

I have a v12 with Infinity v1.38 installed & SummOne's 1.8k resistor fix (12.1 unit). My originals play fine & CD-R backups work fine. However, my DVD-R backup games (that work fine in my v9 PS2) are not working. They'll get past the Playstation2 logo screen & then either freeze at a loading screen or just have a black screen.
Any advise would be appreciated. Thanks in advance.

[summ0ne]

Even unmodded pstwo have trouble with DVDR.

Just use a new burner (below 1000DVDs), find which media works for you and burn at 4x if its a new burner and at 2x if it has a history

[villasg]

Ritek G-04 G-05 ( maximum 4x)
Works very goot

[qwm]

I have a v12 with Infinity v1.38 installed & SummOne's 1.8k resistor fix (12.1 unit). My originals play fine & CD-R backups work fine. However, my DVD-R backup games (that work fine in my v9 PS2) are not working. They'll get past the Playstation2 logo screen & then either freeze at a loading screen or just have a black screen.
Any advise would be appreciated. Thanks in advance.


One of tests I always do, before any install, it's run movies recorded in dvd-r or dvd-rw media. Some psTwo (about + - 8%), show read retrys and lags in this test and I send the console back to Sony without even opened then. It's a good way to know if your problem happens before or after you implement the fixes.
About the medias, I can recomend these:
TDK
Pioneer
Verbatim Datalife
Ritek G04/G05

[villasg]

About the medias, I can recomend these:
TDK
Pioneer
Verbatim Datalife
Ritek G04/G05

For TDK only the 4x works good

The new 8x dont work in ps2 and xbox

[AnubisTCP]

Well I got my V12 on 1-3-05 and used a friends swap disc and stress tested the system with various backup I had. The ones on crappy media would play...for a little while and then they's appear to lockup. The good media would play flawlessly. So did this for almost two weeks, until my Magic KX chip came in. Modded it yesterday, so far so good, no burnouts. It still freezes on crappy media but no burnouts. So time will tell if all is good.

[ideas_man69]

id put the resistor in to make sure.. dont wanna blow the laser for the fun of it.

[spacebob]

ok I have a 70011 4D model and the resistance says 303 on it, with matrix infinity installed but not botted yet, waiting to install the fix. I have bought the neo-fix xii and wanted to know if it was any good before installing it?

Thx!

[NEWCASTLEmodchi]

i wonder if people read all these pages of information before posting :s

IMO it is ok, but you should ignore it and go with the Summ0ne fix instead - it's MUCH better

[just wondering]

hi , i've done 4 of the new u.k slimline ps2's theres two board model number 32 and 35, the two 32 boards , no problems , but the two 35 boards , just instantly stopped working as soon as the machine was switched on with the mod and sommeones fix.

but the two 32's where fine ? the two 35's gave a smell of burning ......i've use apple 70k chips , any help ? i used the correct resistors.

[loy]

not properly insullated?

[TRABEL]

well .... after waiting so much for a solution .... and i dont see it coming , i have bought the slim for testing .
i got a ripper chip with this fix atached.
i have talked with someone who installing the rippers with this fix , with np ater 20 consoles...
also i see that sommeones fix is working very nice , but i dont understand how ps2 get burned without chip and only the fix for testing ???
isnt that fix should only take to much power from the lens ?why whould it kill the ps2 without a chip ?
well , i hope all will goes well , im thinking about installinmg this fix and sommeones fix .
anyone tried this fix ?

[TRABEL]

hi again
i have installed the ripper iv , with sommeones fix . both 560 and 4.7k resistors.
all work fine for now.... will test more tonight with gta and few more games , will let the little one to work ;)
hope all will be good i'll repost after testing

[Vanquiz]

Mine is Crystalized PSTwo 70012CB/97003, with the fix from XMODD, I'm not sure what kind of fix they applied, total of playing hours less than 10 hours, with 2 hours max per session, the laser burnt, now I sent it back to them, which they claim now they have a better fix than the previous one. Only time will tell how long this one gonna lasts...

[loy]

from wat i've heard they used is they used the foundmy fix

[TRABEL]

well , we have now chiped slim pstwo imported from jap selling around.
they are chiped with M-7 chip and diode fix .
from what i hear they selling for more then 2 weeks , and still no returns ...
also , the importer gives year of warrenty ......
i wonder from where he got the confidence to give a year....

[tickford]

The diode fix don't help much at all.....I've had fried coils with didoe fix.:(
As for 1 yr warranty,they must be nuts :crazy:

[Robot]

Got a brunt laser back today. This machine had matrix pic fix :(

I tested the fix chip before i installed the chip too. Has anyone had a dead machine with a neofix chip yet ?

[loy]

yes the neo fix is jsut basically a matrix pic plus diode

[iuli_psx]

hi everyone! i have a theory who work to me. i have a v12 with ripper IV+fix1+diodes. i moded from the begining of decembre. every time when i want to play a game or watch divx movie, turo on console with cdrom cover open. after 2 sec i close the cover and all is fine. i make this even i want to reset console, firs i open cover, reset and after 2 sec close cover. most lens burn when you start or reset console. maybe some guys are interested to test my ideea and tell everybody if is good.

[TRABEL]

well , we have now chiped slim pstwo imported from jap selling around.
they are chiped with M-7 chip and diode fix .
from what i hear they selling for more then 2 weeks , and still no returns ...
also , the importer gives year of warrenty ......
i wonder from where he got the confidence to give a year....

well from what i hear , this supplyer sold over 500 ps2's , only 1 got back ,prob was non spining disk , but not due to laser burned.

i dont realy know what to say... only time will tell

[ps2modder]

lol....it is kind of funny that i bought the PStwo just in case my hybrid v4 breaks. I was also looking at the PStwo manual and apparently there are now two versions of the slim-line version. SCPH-70011 and the SCPH-70012.

[DS-1]

I have tons of problems with my "new" pstwo.I putted my demo in and it worked fine.The first "surprise" was when I opened it yesterday (i've bought it on saturday,so i supposed it was the last motherboard release),i had this "bad" surprise: it was a GH-032-11. I talked to my friend who mod the console and he never saw this motherboard code (his first v12 mod was in november). So,we start to add the DMS4 PRO, it was done very well,we turned it on (without fix,just to see if it worked),but it won't read the demo disc:the lens worked,the spin worked, but the discs didn't boot. We could only boot one time Pro Evolution Soccer 2 (original) that,after a reset,the green turned red (it was the PS3 fuse). We changed it (we took a 63 from my old v7 board) and we tried another boot,this time without chip.Result:the same.The discs turned but won't boot,and after some resets the fuse was done again. I dunno what to think now,but i wouldn't spend anymore 150euros for another v12. Does anyone know why this fuse goes broken so easily?Can anyone help me?Thanks a lot.

[BST Console]

I just brought home a case of PStwos with datecode 5A. They have 303 resistors.

[DaMacFunkin]

How do you know if your laser i burned out on a v12? i have only had this 2 weeks, chipped it myself with a Matrix mxl 4 as per the instructions on their web site and it worked fine with every game put in it. I havn't really played on it just used it for testing, then today a lad brought a disk round that didn't work on his ps2 tried it in my v12 it didn't boot just went to memory card screen, reseted a few times and no result... when i came to turn the system of it wouldn't turn off, so unplugged the power cord, now it doesn't recognise any disk, checked all the wires and they are fine??? The lens makes a clicking noise when i insert a disk, but very rarly trys to spin it up... help please.
Thanks.

[wmb88]

sounds like a machcon crash has fxxxed the laser. Did you install laser fix?

[DaMacFunkin]

There is no mention of a laser fix on the install diagram, infact this chip sells as, and i quote... "CD Lens Safe (Avoid CD lens damage by sending un-necessary signal to the Drive Controller)"

[DaMacFunkin]

Heres a link tro the page for anybody wanting to know
http://www.infinitymod.com/cgi-bin/matrix/site.pl?page=chip_mx4

[anti-hu]

hi there. i'm an experienced xbox modder and also a proud owner of a vipergc in my cube and said what the hell so bought a ps2 slim and a dms4 lite off the net. after doing some reading i've discovered that sony does not know how to make consoles. i've read somewhere that if you have a slim with a date code of 4d i might not need a fix (i have a mfd fix that was sent with my chip)

i have a slim ps2 with a date code of 5a and was wondering if i still need to install a fix to protect the coils.

[BST Console]

Ive been testing a 5A for 2 days now without a fix and a CC installed. No problems yet, but we all know that might change. I would recomend that you apply the Summ0ne fix to it. It wont hurt.

[ShadowKnyght]

The dms4 lite is false ecconomy - it wont run the toxicOS or what ever the latest firmware is and as such is a pretty large step down from the Pro from what I have been told - never installed either myself...

BTW - the Summ0ne fix is so simple that you might as well appl it just to be safe.

[anti-hu]

dont want to try the summone fix because of someone in this forum mentioning that he has fried 3 gh-035-71 boards. i also have one of these boards and allthough many have had great sucess with summones fix im not willing to risk it. does the ver7 ps2 require a fix, a friend of mine has one and im considering trading him....but these slims are just so freakin cool

[moja]

dont want to try the summone fix because of someone in this forum mentioning that he has fried 3 gh-035-71 boards. i also have one of these boards and allthough many have had great sucess with summones fix im not willing to risk it. does the ver7 ps2 require a fix, a friend of mine has one and im considering trading him....but these slims are just so freakin cool

If you are an experienced xbox modder (as I also am) as claimed, one thing you should realize is the PS2 is sensitive to botched soldering 'skills'. If you don't feel comfortable soldering the legs of a 1/4W resistor to a small point, then by all means be worried of another's 3 bad mobos. Otherwise understand by the multitude of pages in this thread that this effort is somewhat worth it. :chinscrat

[b2kmods]

OK ive got my first GH-035-71 & GH-035-61 motherboard in today. Have ppl had success wif the summone's on these boards? (PAL, AUstralia)

[ShadowKnyght]

All of mine have been GH-032-1 1

[b2kmods]

same shadowknyght wif a few GH-032 to GH-035 -21 to 31's thrown in for good measure. The laser in these GH-035-61(71) are both PVR's..

[b2kmods]

Best i could find on these boards was this

"Most are the GH-032-11 board ( with seperate EE and GS chips) except for customers from sydney they all seem to get the GH-035-61 boards"

I guess us Perth guys are starting to get them now

[tickford]

Most are the GH-032-11 board ( with seperate EE and GS chips) except for customers from sydney they all seem to get the GH-035-61 boards"

I get both...just pot luck i guess.:)

[loy]

umm just got a few new pstwos in today i must check if i get ones wiht single chip

[letsmod]

I am getting GH-035-71 boards in and crystal seems to have a problem with ACTEL date code 435 and 436 on them, MI works great

[b2kmods]

ive done 4 of the GH-035-61(71) wif modbo chips now, no issues..

[BST Console]

So are there any thoughts about the New 032-12 PStwos popping up in the US?
Im seeing a different MOBO layout with the cxm chip in the back corner. What is this chip = cxm4015r ?

[Robot]

got the same consoles in today looks like they changed the lense

I aplied 1 resistor to the 303 resistors and its working fine

[samino]

I have 2 V12 both with D**4 Lite, after install and applying the fix "summones fix" so I removed the fix and tried neoii fix and I get the same reaction. it will spin then stop, spint then stop it does this about ten times then says disc cant be read. I measured coils and both are around 5.2 and 5.6 ohms. What can this BE!!!

These mobo's are GH-035-31
And Date Code 4D

Am I screwed?

Oh yea and the lasers are not fried!!!

[MaximusDK]

I have a GH-032-11 board dont know what date code (is it important?) and it has the wide laser.
with this information, can someone tell me what fix i should go for? is SummOne's fix the only thing i need or should i do more?
i know that it isen't saving everyone...
is this worth the risk or should i just sell it? I'm planing on installing a Crystal chip.

Regards MaximusDK

[qwm]

I have a gh-035-21 dc 5A... after install the sommone-fix + PIC (matrix-fix), my pstwo turn itself off after a few minutes (the reset led goes off too), even raising the PIC resistor to 3K, the same thing happen (without modchip yet), this happens to anynone here? I wonder if I can raise the pic resistor value safely yet....

[cakcetin]

I have same problem so I remove pic fix then I test it by many reset in 6 hour. After this test I give pstwo (summone fix+modchip) to customer before 6 day no return....
I hope all pstwo not return.

[MaximusDK]

do we only have to make the summone's fix then? if the pic fix is just F***ING the system up!?

Regards MaximusDK

[anarchy2007]

I have had this problem twice with Crystal chip. It seems that some of the crystal chips can not drive enough current on pins A-I (v9-12) to patch the Buss this then causes the Mechon to lock up and the pic to turn the console off. Normally when you install a Crystal chip with this problem it will not update at all, but I installed it in v7 first, updated it and the re-installed it in v12.

I doubt that it is the Pic that is causing the problem, unless it was programmed wrong or installed wrong. I have installed many Infinity, Crystal and MX4 with pic fix, and not one burnt lens coil.

[villasg]

I have a gh-035-21 dc 5A... after install the sommone-fix + PIC (matrix-fix), my pstwo turn itself off after a few minutes (the reset led goes off too), even raising the PIC resistor to 3K, the same thing happen (without modchip yet), this happens to anynone here? I wonder if I can raise the pic resistor value safely yet....

I have the same problem with a NH9 (modbo) .
I fixit with supplying the mod with +5v.

[summ0ne]

I have the same problem with a NH9 (modbo) .
I fixit with supplying the mod with +5v.

HAHAHA!!:D

who says 3v chips are safer then 5v chips :p

[GTZ]

LMAO! :lol:

[qwm]

I have the same problem with a NH9 (modbo) .
I fixit with supplying the mod with +5v.


The problem happens with an unmodded psTwo... so is something with the PIC and the board version....
supplying the mod with 5v, all you do is kill the psTwo....

[summ0ne]

and how many pstwos has that killed.... i installed 150 5V chips in pstwos and NONE died.

AM I DOING SOMETHING WRONG???

[mrod]

Well, I think this because...

"THE DEVICE - Our V12 Fix

- UPDATE if your PSTWO unit is a 4D model you may not require this, do email us back first! "

@ foundmy

Gradius
MY DATE CODE IS 5A DOES THIS MEAN I HAVE A GOOD PS2?

[Asswiper]

Ok I have Nuked the Laser and then replaced it... but still the Disk dont spin up... any Ideas

[nirbeltran]

i have installed a mgic kx on a pstwo v12.0 with the summone fix ( thanks summone ) , after a couple of days it stopped working , the disk wont spin !!! not an inch !!
i have tested the focus and tracking coils they are both on 4.0 ,
any ideas ??? maybe a fuse or something ?
thanks

[Flying Scotsman]

I had the same problem with a matrix infinity, Installed it, and it worked fine, then the disc stopped spinning. I removed the tracking and focusing smd's and replaced with 30 0hm resistors and voila, all was well again. However the disc read error is still there so I think I may have cooked the laser, unless anyone else has any other idea.

I started console up after replacing the 303's without the top lid on and the disc spins up, laser moves and lights up. One funny thing I did notice is the boot screen on another slimline with 683's . On the one that works the spinning graphics on the browser screen on the working console stop moving where as the other one the little circles continue to spin. I'm not sure but I think there may be a modchip issue as opposed to a soldering fault. :banghead:

Could this be a problem with the infinity, does anyone have this knowledge?

Cheers In advance

keith

[cakcetin]

On the mobo you don't have 30 ohm resistor be carefull it's 30K....Isolate your resistor fix from mobo before its grounded and don't use smd resistor for fix please use carbon resistor with %1 tolarance.
Sorry for my english
Regards.

[GTZ]

I've used quite a few SMD resistors for summOne fix?
Could you explain why I shouldn't be using them?

Cheers,
GTZ

[cakcetin]

If I wrong correct me; you can see all reported disc not spin and laser frying with summone fix generally say "we are use smd resistor"
When resistor grounded 303 or 683 resistor can blow easyly.
Regards.

[wmb88]

If one of the shoulders of the SMD resistors shorted to GND, then your install has terribly failed. So it's better to stick insulation tape before soldering. Those 303/683 are very delicate you must be quick otherwise they can be burnt out easily then the disc won't spin as the result. I suggest, if you have a diode fix board, then remove all diodes and solder 560ohm and 4.3k ( see the attachment ).
This way you will have less trouble.

[GTZ]

Crystal diode board switched to SMD.

Cheers,
GTZ

[sacroligous]

Y not get a premod? Ive sold many premoded PStwo's in my day... with the lazer correction thing... anyways... never had one bad one since launch...

Cheers

[DIPLOMAT]

i have yet to put a fix in my v12 and dont plan to either, its been running for over 2 weeks now plus i even use cheap crappy media to really give the laser a real work out but its stilkl running strong, maybe some of u guys got defective units, just wondering....

[DIPLOMAT]

i normaly use, tdk, sony, and ridata dvd+r's

[iLLNESS]

i applied the summ0ne fix to my v12 (683's).. dono if it works till i get my mod this weekend :o

either way the loading is just the same for retails

[ShadowKnyght]

On the one that works the spinning graphics on the browser screen on the working console stop moving where as the other one the little circles continue to spin. I'm not sure but I think there may be a modchip issue as opposed to a soldering fault. :banghead:

Could this be a problem with the infinity, does anyone have this knowledge?

Cheers In advance

keith

no the spinning graphics are tied into the clock being set - if you pull off the battery wen doing the mod then your system settings are lost and the spinning lights will not spin only a ball will appear - if you set the clock etc again they will spin on next boot - this is not related to the problem.

[Ferid]

Had a pstwo to repair this weekend. Disc wouldn't spin. I didn't trust the install. Long wires. I moved the mod (MI) and shortened the wires. After this the pstwo was ok. It did not have any protection.
I tested it a few times -> ok
After that my brother played with it. When I got back in my room I saw the pstwo had frozen. My brother was trying to reset the console -> nothing. I quickly realised it had locked and removed the power. After putting back the power the console was oke. Laser had not fried :D

[wind]

hi ppl. i juz bought a new ps2 slim which was modded. loading games wasn't a problem, but after about 15 mins or more, after resetting and reinserting the same or another game, the screen will juz shows "pls insert a ps or ps2 game". and i have to wait for a couple of mins before i can play the game(s) again. Is this a modchip or lens problem? any experts encounter such problems b4? many thanks

[tickford]

Probably more so a modchip problem.If the laser was faulty,it would just go to the browser menu.:)

[bordeaux]

hi.. i'm hoping someone can figure this one out since it has been giving me a lot of headaches.

After modding a v12 with a matrix mx4 i applied 2 fixes at once;
and unfortunately in both fixes I made a stupid mistake.

First mistake using SummOne's fix;
http://www.forumconsolas.com/forum/attachment.php?attachmentid=3
I placed a 1.8kΩ on a 303 ( instead of a 560Ω )

Second mistake using Van Drunen fix
I applied the board as such;
http://www.forumconsolas.com/forum/attachment.php?attachmentid=26
but forgot to remove the fuse as such;
http://www.forumconsolas.com/forum/attachment.php?attachmentid=27

Result -> drives spins up but doesn't recognize anything (original or backup).

So I re-did the SummOne fix and removed the fuse for the vanDrunen fix.
Result -> drives spins up but doesn't recognize anything (original or backup).

So I removed all connections to the mx4 chip,
just to see if it would run unmodded with original disc.
Result -> drives spins up but doesn't recognize anything (original or backup).

I've now got no idea except that I probably fried something.
So i tested the lens -> which works perfect in a different unit.

conclusion;
I know what I did wrong :banghead: :banghead: :banghead:
And yes, it was a VERY stupid thing to do.. 8 years of modding should have taught me something.. but I have zero clues on fixing it.

Does anyone have an idea on what I could do to fix this problem?

[tickford]

Did u check the 303(30Kohm) resistors????And fuses around the mobo.....that would be a start.:)

[bordeaux]

Did u check the 303(30Kohm) resistors????And fuses around the mobo.....that would be a start.:)
hi tickford,
yup.. just double checked the 303's to be double sure.

i've now physically stripped all wires and even cleaned all solder points with litze (sorry don't know the english word for litze.. the copper colored weaved wire to remove solder) etc.

oh yeah, naturally removed fixes, replaced fuse, remeasured.. it all seems fine.

Still.. the drive spins up normal but doesnt see the info on original ps2 discs.

strange uh?

Any ideas.. anyone?

[summ0ne]

try replacing the 303 resistors with hot air, even if they look fine

[JBHELL]

Hi All,

I have some diode fix boards (just diodes with no pic) and recently I have been installing them with summone fix resistor on the tracking coil. I have had no complaints so far but I was just wondering whether this is a good idea?

[qortizone]

Sounds like you've blown the equivalent of the LA6508 (whatever that might be on a V12)

[DIPLOMAT]

man yall really should give up on these fixes, my ps2 has not died yet, maybe i'll try a matrix chip next since it got good ratings in my poll

[comsoft]

try replacing the 303 resistors with hot air, even if they look fine

if thay show 30k then thay alright, why replacing them?

[bordeaux]

Sounds like you've blown the equivalent of the LA6508 (whatever that might be on a V12)

yes that is what i fear aswell..
oh well.. spent enough hours on the damn board..
only solution i can think of is just putting it in storage and hope i'll forget i own that machine for a couple of years now.. hehe ;)

[Ruddicz]

go get another console, reapply the fixes correctly with the chip and instal the laser from that machine into yours. then if it works you know you bombed your laser. If it don't work then its most likely an onboard chip.

[Robot]

man yall really should give up on these fixes, my ps2 has not died yet, maybe i'll try a matrix chip next since it got good ratings in my poll

You should realize that its not all pstwo's that will die. The pstwo's come with 2 laser types, and its the units with the PVR laser that are giving the problems.( This laser is a peice of shit) :crazy:

So saying all that we can only try all the fixes and combinations of them to see what will be the best prevention from this crap PVR laser from dying. :banghead:

[anarchy2007]

I have done close to 80 of these v12 consoles so far with Matrix inf, Matrix MX4 and Crystal chips. I use the Matrix pic12 fix with 1K5 1/4 Watt resistor and the Matrix diode fix that comes with the Crystal chip. I have not had one dead v12 lens up to date. Not even 1 that doesn't want to read DVDs any more.

Just a thought could it not maybe have something to do with the installation. I do all my installs the same way that I used to do the D*M*S*3 all wires flat on MB and no wires crossing. Maybe this could be part of the solution???

[anarchy2007]

I had to go and say it!!!! I got my fisrt one back about 3 hours later. It doesn't read DVDs anymore. CDs are still fine, atleast the coils are not burnt.

[Robot]

syndrome no2 :(

[demir2]

Hello all,

in the last time i have problems whit the PSTwo Laser Modell SPU3710 (wide laser).

It returns 2 PStwo whit this laser and all are not working whit DVD`s (CD`s are working well)

I read in this forum that the summOne Fix not working whit this laser, it is so???

What is the problem??

I hope anyone can help me?!

[loy]

please used the search button

[demir2]

I use the search button but i found not the right?!?

[plazma]

Hello all,

in the last time i have problems whit the PSTwo Laser Modell SPU3710 (wide laser).

It returns 2 PStwo whit this laser and all are not working whit DVD`s (CD`s are working well)

I read in this forum that the summOne Fix not working whit this laser, it is so???

What is the problem??

I hope anyone can help me?!

I got the same problem with four units (all got SPU3710).
Do anyone have a solution?

I removed Summ0ne fix and modchip but it still doesn't read DVD. CD are ok.

[kima]

I have the same with one PSTwo. Moved the laser to a brand new PSTwo, and still the same. So the problem is the laser.!

Kim A

[cakcetin]

So for wide laser summone fix failed; can you confirm this certain guys?
I have 5 dead wide laser with slimline fix v3.
Regards.

[cakcetin]

I can confirm now; summone fix(560 ohm&4K7 ohm) and original MI when you put scratched disc or when mechacon crash happen on wide laser after shutdown pstwo cannot read dvd or dvd-r....
I tryed summone fix(both resistor)and matrix fix same problem happen.
Finally now I have dead 7 wide laser
This is too bad.

[Lord Van Nagash]

I can confirm now; summone fix(560 ohm&4K7 ohm) and original MI when you put scratched disc or when mechacon crash happen on wide laser after shutdown pstwo cannot read dvd or dvd-r....
I tryed summone fix(both resistor)and matrix fix same problem happen.
Finally now I have dead 7 wide laser
This is too bad.


I already said about problem betwen summ0ne fix and wide laser

Lucky for me the pstwo was able to read all media after removing the fix
please note both tracking and focusing coil had 3 ohms in this model

[sunny]

Where's the link for the picture showing difference between the 2 lasers...?
+ is there a known cure for it...?
Thanks.

[cakcetin]

So Lord Van Nagash you give pstwo without any fix?And for both tracking and focus coil 4.6 ohm.

[MaximusDK]

i have a ps2 with a wide laser, im about to mod with a prodigy 2.5 witch incl. a pic fix and a diode fix and was advised to not install the diode but the summones fix insted.
what should i do?

[mjh74]

Hi all,

Is there a way of telling which laser your PSTWO has by just looking at it with the lid open? If so are there any pictures on the net with comparison pictures of the different lasers?

TIA..

[MaximusDK]

Well heres a shot of my ps two and im almost sure its a wide laser!

http://img74.echo.cx/img74/9702/widelaser5jz.jpg

[mjh74]

This is mine from an SCPH70003 (UK)

http://img159.echo.cx/img159/1258/pstwolaser7gn.jpg

[ShadowKnyght]

The wide lasers (SPU 3170 G) have like the first shot a metal cover plate with the lens and another metal plate inside that is attached with two dobs of white hot glue.

https://www.ps2repairs.co.uk/catalog/images/pstwo_laser.jpg

The short one (PVR802) is like the second picture where it is just one complete cover plate:

http://www.divineo.cn/divineo/images/products/ps2-pvr802.jpg

[sunny]

Cheers shadow.....

Have you had any problems with wide laser...ie SummOne fix apparently not working on it...?

Thanks.

[ShadowKnyght]

Yes - I am not sure if my other stations where wide or not but only this one with a wide laser using both resistors instead of just one has come back.

Fault was open circuit coil not shorted coil... I am hoping that no other chip was damaged based on the fact that the stations till boots to browser and the new narrow laser lights and slides back and forth up and down - just does not boot games...

[MaximusDK]

well is the comsoft V4 fix the only thing we can use for the Wide lasers then? :chinscrat

Regards MaximusDK

[summ0ne]

;-)

http://www.ps2-scene.org/forums/showthread.php?t=33887

[scarab]

I've just fitted a Matrix Infinity to my V12. I reassembled it and it worked fine. I then dismantled and fitted the summ0ne fix. Reassembled. Found that it was now not reading any disks. Dismantled and found that one of the coils is open (as measured from main PCB). Aaaarrrrgggghhhhhh.
Checked this forum. Discovered that I have a wide type laser. Swore a lot. Typed this message.
Has this happened to anyone else?

[sunny]

Where can we get the subzero fix from SummOne...the link above has only info on it...?
and I'm assuming there is no problem with the wide laser...?
Cheers.

[ShadowKnyght]

SCARAB - I had one die exactly that way - one coil open!

The other was a little low - around 3.6 ohms. Wide laser... but mine did work for a week or so before the customer complained it had stopped.

[mjh74]

So are we saying that the summ0ne resistor fix and slimfix v3 PCB isn't saving the wide lasered PSTWO's then? How about slimfix v4?

[Flying Scotsman]

Yes Scarab, I hade a wide lens fail on me too, had both resistors in with MI, I updated the infinity and with a week the laser was gone, took out the chip and left the Summ0ne fixes in and its still going strong 2 months on. :)

[comsoft]

So are we saying that the summ0ne resistor fix and slimfix v3 PCB isn't saving the wide lasered PSTWO's then? How about slimfix v4?

i explained more then once, whats so diffecult to understand.
both fixes are to save the coils agains the MECHACON crash ,not the diods which are dieing duo to bad media use/burn and/or factory falier in production of those lens!!!

[mjh74]

That's fair enough for the odd unit but people here are talking 10's of units with wide lasers failing in some way or another. They can't all be using bad media surely?

[cakcetin]

Yes bad media , crappy scratched media (like princo burned 4x or 8x)) certain kill dvd diode....
But strange I gived to customer before 3 day 4 unit pstwo with MI;summone fix(both resistors) no return and I hope not return because I hate from turned back wide lens.

[scarab]

Are the wide and slim laser direcrtly interchangable?

[cakcetin]

if use diode protection you can change direct wide lens-->pvr 802 ; but if you need apply summone fix you must change eeprom

[GTZ]

Are the wide and slim laser direcrtly interchangable?
And I think you have to swap the entire drive assembly as the rail width is not the same for both lasers.
Correct me if I'm wrong.

Cheers,
GTZ

[top1]

I've installed 2 resistors (summ0ne - 560 ohm, 4.7 k), then installed Subzero fix - 33k resistor, 2.2 uF capacitor and diode, cut track and...

After I pressed power on, I can see, that eye in the laser is going down (probably full power on the tracking coil)...

Maybe sony detects resistor, raises power on the coil, and without hanging console, burns coils ???

(without any chip...)

[summ0ne]

the only advantage of the subzero fix is that you do not solder anything to the opamp input. if any flux flows under the resistors on the mobo your head will do that with the summ0ne fix.

If youre having trouble with that, remove the resistors you soldered to, clean the mobo and them, then hot air them back. the subzero fix also works great by itself, and as long as you have 100% cut that track - you win :D

[eug900]

so wat should i do if my pstwo with a 303 doesn;t read cd's but reads dvd's perfectly? i put in a 4.7k on focus and 560 on tracking. its a wide laser btw.

[MaximusDK]

well im kind of confused right now! :chinscrat but i have a ps two with the "slim" laser, and i have a prodigy 2.5 so i guess i will make the summones fix and using the intergrated pic fix from the prodigy but not using the diode fix.... or is this a bad choise of doing this? what do you think?
is there something about that i cant open the lid before the ps two is shutdown or else it will burn the laser? hope someone could advice me abit here :)

Regrads MaximusDK

[Housh]

Anyone have experience using the newest Apple7 chip on the pstwo? Is it any good or should I use another chip.

[blade47167]

Been a member for awhile but never posted. Anyway I'm wanting to mod my slim-line ps2 but I'm worriede about this laser thing. I bought mine in December I think. How do you find out if you have a good laser or not do you have to open it to see the number or is there a way to tell from your serial or bar code. All I know is my model no is SCPH-70012. Thanks for any help. Oh ya I was thinking about getting the DMS4 Pro chip. Is it a pretty good one if I am going to be able to mod. Also I don't have a problem getting one of those extra add ons to fix the problem like the subzero fix or which ever one would be best.

[skuzi]

Hi PStwo experts out there,

I have a strange problem with a V12 I modded. The mod I used is a Matrix Infinity. When I just modded it, no problem, all copies worked just fine.
After about 2 months, the owner returned the PStwo cause it acted strange.
I have the following behaviour:
It plays all originals fine, but won 't play any copies anymore (checked all the wires, still connected very well)
Furthermore, when a game gets inserted and the lid closed, the lens wants to move to the front of the console further than it is possible to go.
Gives a sound like a little machine gun.
I measured the laser coils, but they are fine (both around 5,6 Ohm)
I Inspected the laser, first thought it was maybe the little switch which tells the laser to stop at the end but it is also just fine
I also mesaured the pots, which have readings as they should.
I doublechecked the wires of the Matrix mod, all still connected very well.
I used the FIX (zener diodes + PIC with resistor), but then I can 't read anything anymore, and the little machine gun sound is still there.

Please help me out, I am getting crazy here.... :( :(

[cakcetin]

I'm not pstwo expert but first do you check ribbon cable?
Your infinity modchip is a original or not?

[skuzi]

Yep, the Modchip is VERY original. It is the Matrix Infinity with the blue dot.
The Ribbon cables have been unplugged and reconnected many times and furthermore the pstwo started behaving strange only after 2 months, not immediately after modding.

[hkfun]

Help With V12-maybe Summone Can Help?
hi summ0ne.thnx for all your great work,on providing a simple fix!I hope that you can help me!

i modded a pstwo(gh032) and applied your fix(like i have done many times before)

Machine booted a backup dvd first time no problems.one retart later.and laser moves to centre,but disc does not spin.i then proceeded to power machine off,and check all fuses-and laser

*ok,laser was blown-focus coil only 2ohms.replaced with new one!
*not one fuse blown?!then removed your fix,and tried again!same problem.then proceeded to test resistors-the ones where your fix was applied to!(303)(the first RSF point in your diag.and that resitor was blown.i then replaced the resistor.No i have some sort of success.disc spins up once twice,then continues to spin(not quite full speed though),but never reconises a disc!actualy stops after a while.

No any ideas from your side?-please say yes!!

[cakcetin]

Skuzi spindle motor is have magnetic property so maybe a small screw sticked between spindle motor and lens???

[GTZ]

Hi PStwo experts out there,

I have a strange problem with a V12 I modded. The mod I used is a Matrix Infinity. When I just modded it, no problem, all copies worked just fine.
After about 2 months, the owner returned the PStwo cause it acted strange.
I have the following behaviour:
It plays all originals fine, but won 't play any copies anymore (checked all the wires, still connected very well)
Furthermore, when a game gets inserted and the lid closed, the lens wants to move to the front of the console further than it is possible to go.
Gives a sound like a little machine gun.
I measured the laser coils, but they are fine (both around 5,6 Ohm)
I Inspected the laser, first thought it was maybe the little switch which tells the laser to stop at the end but it is also just fine
I also mesaured the pots, which have readings as they should.
I doublechecked the wires of the Matrix mod, all still connected very well.
I used the FIX (zener diodes + PIC with resistor), but then I can 't read anything anymore, and the little machine gun sound is still there.

Please help me out, I am getting crazy here.... :( :(

Explain what fix you're using....diodes don't do anything to protect the laser.
Remove it and try an original unscratched game and see if it loads.
If it does, install the summOne resistor fix and retry the original and backups.
Is the laser a regular one or wide?

GTZ

[skuzi]

Explain what fix you're using....diodes don't do anything to protect the laser.
Remove it and try an original unscratched game and see if it loads.
If it does, install the summOne resistor fix and retry the original and backups.
Is the laser a regular one or wide?


Hi GTZ,

I am using the Neo Fixii (combination of PIC and diodes on a board).
Well... de diodes DO protect the laser, as the Voltage goes down with 0,6 Volt
for each diode which has been used. So you can consider it as a voltage regulator.
I do agree it is not a good solution because when I use it not even originals want to play.
The SummOne fix is a Current limmiter, what sounds indeed better to me.
As I told before, WITHOUT using the fix it DOES play originals, but doesn 't want to play backups anymore (like it did for 2 months). the problem has nothing to do with a laser protection, but to find the reason why the laser wants to keep moving forward, as if it thinks the discs are bigger then they are and the laser wants to go to the outer ring of this bigger disc. This makes a sound like a machine gun, as the laser keeps on bumping to its limit.
I don 't know if the laser is regular or wide, but it 's still the original one and has good coils (both 5,6 Ohm).
When using Original games, they load (without fix), but I still have this "machine gun" sound....

[davbere]

Skusi check the large white laser ribbon... it may have bent or damadged contacts. This could be the cause of the laser wanting to continue moving forward.
But you probably also have a laser that needs replacing now.

[gerasim]

I have the same problem with wide lens laser.Once I receive a new one with not wide
lens and return one with wide lens and our "nationwide" problem.I changed the bords.
I dont see anymore machine with new not wide laser and "old" bord with Mars chip and
Pic fix.Machine with "new" bord and bad laser I send to garanty shop.

[shyam_2005]

help me i have a v12 ps2 but there is no power .and no power on reset wire i checked all jumper .plese help me.

[EspeN]

help me i have a v12 ps2 but there is no power .and no power on reset wire i checked all jumper .plese help me.

I had same few days ago. Check the White big fuse at the corner on the motherboard near where u attach the eject cable.

Measure it on both sides with ohm meter. I bet it is blown :)

[bodger2uk]

just chipped a slimline with an mx4 & neo fix xii, played originals & gave the dreaded rsod on ps2 backups, turned off double checked all connections all ok,flashed chip no probs,next day turned on & laser didnt spin,backed out of install of both chip & fix, checked resisters (01d's) & readings are 84 & 57, am assuming these resistors are fried, tried laser in another v12 still no spin(carraige moves on rails & eye emits the red beam on power up)laser is the wide one, n e bod got a seller for the 01d resistors ?

bodger