Proof-of-"$ony fixed Laser Coils burning Issue in V13" Test results included with Kit

[dap1mp13]

Anybody have a picture or diagram of where the dvd pot is located?

Thanx....

[comsoft]

As i've got a PStwo V13 last week i saw that $ony changed the PCB layout regarding to the Motor/Driver IC region... They added some semiconductor parts to the Motor IC MUTE line and stuff. Check it out at the picture included in this Kit.
This is the first time $ony ADDED parts and not SAVED parts !...
My first thought was that $ony fixed the Laser Coils burning Issue coz' they only changed this region...but i don't wanted to sit in front of it and press the
RESET Button every 20 seconds...

So i wrote a little assembly code for the PIC 10F206 that Powers ON & OFF
the PStwo automatically in a "REAL ENVIRONMENT" to provoke a Mechacon crash...

First i tested a V12 with a matrix infinity chip but without any laser fix...
The Coils burned after 1 hour...that proofs my stuff is working fine...
You can see it happen in the included video "V12_mechacrash.avi" where the burned Laser is lightning like a Lamp...you can see that the PIC is still working but the PStwo crashes not acting on button press...

The second Video "V13_testing.avi" shows the PIC in Action...i added 2 LEDs to show HIGH and LOW status...LOW means PRESS POWER BUTTON...

The third Video "V13_mechacrash.avi" shows the V13 Mechacon crashes...you can see the PIC's working but PStwo does nothing and Laser is ON...i just plugged OFF & ON power supply and the laser is still alive...$ony fixed it but they did not managed to Power off the PStwo like COMSOFT's fix does ...the video is a bit too short as my digi cam only records 30 sec...

After several crashes my V13 is still working fine and this test's just proofing that for the new V13 there is no need for a Laser fix now !

One of the results off my tests were that there is absolutely no difference
between our 5 Volt ICE Chip and for example the 3.3 Volt matrix infinity
chip regarding to the mechacon crash issue...as some mod teams stated before for promotion reasons...a 5 Volt MCU based Chip cause the PStwo to crash not more or less often than a 3.3 Volt powered FPGA based Chip.
The crash is issued due to a communication error between DSP, mechacon and the modchip...it is related to the authorization process and would need
a long time to fix by a mod team...maybe never...

Another result was that the crash only appears to a PStwo fitted with a modchip...it has also crashed with a modchip booting Original Games ! So the crash has nothing to do with blank media as some guys suggested...

My V13 never crashed without a modchip !
Someone could think that $ony has done that especially for the modchip scene ! thank for it...

It is still not clear and still to test if $ony's fix also protect the laser diode from burning...

UPDATE :

Here is why the diode burns :

The PStwo Laser has an automatic gain control called AGC...the AGC rises the current on bad reading media so the laser can read better...so it does on dvd blanks as they're not so good readible as originals...no matter if you use bad or good quality media...but on bad quality media the laser diode current gets too high in some state...if so it burns...the wide lasers burn more often coz' they're made with very poor quality from a worse chinese manufacturer...

And here is how to fix it : "Works for V12 AND V13 !"

Summ0ne...known for his economical tips ...gave me the plausible tip some weeks ago and it's the BEST way to protect the laser diode...under the laser there are 2 little Pots...just turn the DVD Pot a bit anticlockwise ! In metric i turn it one millimeter...in inches it is 0.040...it limits the maximum current comes from the AGC...from 2 months back i didn't get back any pstwo with a dead laser diode...

you can download the complete package here
scroll down and click on free...

or here

i was the first to say that the wide lens problem can be fixed by addjusting the dvd pot!!!!

read the posts and see!!!

I also was the fist to claim that the chips are the blame to the dead lens and that it's all happend during patching . but i was flamed cose of that. this also can be read on my older post as "XcalibEr".

[cakcetin]

When I see wide lens I increase(like Comsoft sayed) dvd pots aprrox 1500ohm(I made 4 units)and now I wait(Only time will tell)...
I must say for v13; when happened crash I plug off power cord then I touched to the lens(this happened second time on different pstwo console),its warm and I see very very thin smoke...After crash coil value: 5.1-4.9 ohm yes not coil burn; but after how many crash coil can fry???
Sorry for crappy English.
Regards.

[bunghoolio]

Just modded my first v13 today. Modbo1.2 with MI1.4 firmware. NO FIX or DVD Pot adjust. I will be doing another 20 V13's in the next month I hope and will be all the same. No FIX, NO Pot adjust. Will let you all know what happens. ie Australian PAL V13's.

[dungbeetle46]

I modded a slim last week and its already gone back to customer, I applied subzero fix but am now wondering if it was V13, the fuse that subzero gets soldered to was a small one with the number on top like in the automans photo, could it have been v13 or wont subzero line up with v13, and if it was will having the fix applied hurt, BTW it was narrow laser

[eMaNoN]

so whats the best setting for the pots...?
ps2 dvd pots...?
im confuse on adjusting it,
lower the better right, but the laser will have problem reading dvd..?
higher the worst right, its read the dvds but will have laser diode burn out later right...?

can anyone say which setting is would be good for dvd pots..?

[anarchy2007]

I have never realy had to many problems with PVR lenses failing, maybe 2 or 3 during the whole year. Now the wide lenses is a completely different case. I adjusted a v12 with wide lens' pot from 1K2 to 1K4 on Saturday, on Monday the DVD diode was dead and it does not read any DVD formats. Increasing the resistance to much will result in difficult reading and if not now, will later cause issues with reading media. I don't think that adjusting it any higher would have prevented the lens from being damaged.

I would think that clipping the voltage to the DVD diode at a certain voltage or monitoring the gain control on the DVD diode would be the real answer to this problem.

[wmb88]

i did wide laser pot adjustment from956 ohm to 1200ohm, 1300ohm and then 1400ohm. all my dvd-r back up worked fine with above settings (even better with some discs), but dvd+r dl stoped working. i had to turn the pot back to under 1000ohm for the dvd+r dl to work again.

[ShadowKnyght]

hmmm maybe that suggests that DVD+R have a lower reflective index and as such are more likely to wear out your laser, I would tune for -R and just not use your +R disks, would be safer that way. 1000 ohms is about factory setting for the wide lasers so you have not gained much by leaving it there.

1400 was probably a bit high and with a little dust on the lens and variation in quality of DVD-R media you may have eventually started having reading problems and needed to open up again. I would have left it at around 1200 if that worked fine for all media except +R

[flyinonice4]

Sorry im real new to this. I can only burn dvd+r so i want to be able to play them. If i buy a premodded v13 with dms4 modchip and a summ0ne fix with factory settings for the laser, will i be able to play my games? I bring this up because of the inability to play dvd+r when the laser was changed and i would like to know if it would work if it wasnt changed. Sorry for my probably easy and noobie question.