PS3 Tutorial - NEC/TOKIN Capacitors Replacement - YLOD FIX

Discussion in 'Tutorials & Guides' started by Naked_Snake1995, Jul 15, 2019.

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    ElGris

    ElGris Member

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    @Yugonibblit Yeah, OG tantalums are like a WWII tanks lmao. But they lose capacitance according to my multimeter, it's ok I guess.

    Do you have any BC PS3 that you fixed and ran for several months without issue? I have the feeling that the processors (specially the RSX) are capacitor eaters lol. I have that idea, and I didn't know tantalums could be damaged for "some currents" (maybe that one in the bridge wire?). They seem to be a little weak in that aspect, rather they are cheap or not. https://en.wikipedia.org/wiki/Tantalum_capacitor#Current_surge,_peak_or_pulse_current

    Did anybody know that some high quality tantalums come with a fuse? These boys like to go in short like a group of friends in any Jason movie lol. https://www.ttiinc.com/content/ttii...-o/kemet/products/kemet_tantalum_sm_t496.html
     
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    Sabino Antonucci

    Sabino Antonucci Forum Noob

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    I took the PlayStation to a technician and he added additional tantalum capacitors without removing the original NEC / TOKIN and it seems that since then it has returned to work (for now it is 2 days)
     
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    LeoTW630

    LeoTW630 Member

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    Sorry, I used Google Translate to post
    I hope everyone can understand

    Hi everyone, would you like to ask
    My PS3 60GB also happened to YLOD in 2020/02.
    When the situation happened, I searched the Internet to solve YLDO to find this discussion.
    According to what was written in the discussion, I changed the CELL&RSX NEC/Tokins to 470uF Tantalums
    "One NEC/Tokins for 6 470uF Tantalums"

    After the modification, the PS3 can be turned on. TEST Run GT6 72 hours The status of the PS3 is OK.
    Follow up also play PS2 and PS3 games during this period

    But, when I want to turn it on again on 6/26, YLOD happens again.

    Because I thought it was a problem with the 470uF Tantalums I replaced
    So I replaced 330uF Tantalums again
    "One NEC/Tokins for 8 330uF Tantalums"

    Reboot after replacement but still the same YLOD

    I would like to ask, did I make some mistakes while repairing the place?
    Or is there a solution to the same problem that can be shared?

    After removing the modified capacitors, the impedance of the CELL power supply terminal is 3.2ohm
    The impedance of the RSX power terminal is 2.2ohm

    Not sure if my CELL & RSX has any problems
    Is there a way to measure first to see if my CELL & RSX has any problems?

    I read the article modified by workz_777 and feel that the workz_777 approach is quite reasonable
    When replacing the Tantalums capacitors, the path from the power supply to the CELL&RSX is re-modified so that it feels more reasonable

    If you can't find OE128 to replace it, you will try to modify it according to the modification method of workz_777

    I hope to find a final solution here to save my PS3

    Thank you all
    thank!!!
     
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    aminiani

    aminiani Forum Noob

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    how can we do that?do you any photo of that?
    if somebody has any photo of the adding tantals without removing NEC please upload
     
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    Sabino Antonucci

    Sabino Antonucci Forum Noob

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    at the moment I don't have the console at home yet but it should be a similar thing
     

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    Yugonibblit

    Yugonibblit PSX-Place Supporter

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    Yes I have five that work flawlessly, keep in mind all have been completely delidid and new thermal past also, only one needed reflow, also all were done with 32 tantulum's at 470uf. And solid copper wire at least 14 to 16 gauge for jumper wire.
     
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    squeept

    squeept Member

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    I'll whip something up next time I run in to a bad tokin. I'm just getting back to work after finishing a few weeks of home and garden projects. I tore down the fatties I had waiting here and no dice. Buying more now.

    I'm still sitting at 3 confirmed bad caps out of 80 some systems. Where were you when I needed backup here 6 months ago?!?

    I'll grab that stuff soon so I can let y'all know what the syscon says with a confirmed bad tokin.
     
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    Jack K

    Jack K Forum Noob

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    I ha
    i have four units fixed one ylod after 2 weeks other three running I will be reporting on longevity. Another 5 units waiting for more caps.
     
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    aminiani

    aminiani Forum Noob

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    i guess that every caps are 1000uf..
     
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    Blubberz

    Blubberz Forum Noob

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    Well, I read this topic 7 months ago and did not think much of it. I honestly did not expect this topic would gain so much traction and dramatically shift people's idea of what exactly is wrong. As an engineer working in the Semiconductor field it is very well documented and agreed upon in the academic world that BGA with lead-free solder has some inherent issues (especially around the time they were manufactured). However, that does not mean I am not open minded to the idea that there CAN be an issue with the capacitors. I am more frustrated with the idea that people do not approach this scientifically and treat each Playstation 3 as their own entity and troubleshoot them individually.
     
    Last edited by a moderator: Jun 30, 2020 at 11:27 PM
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    marciolsf

    marciolsf Member

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    It's interesting to hear from someone in that field! Can you tell us more about it?
     
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    wrx884

    wrx884 Member

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    Almost certain squeept and many others have already touched on this at the early stages in the thread so he would just be repeating himself really.
     
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    Deus

    Deus Forum Noob

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    Those are only assumptions, not real studies or research.
     
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    Deus

    Deus Forum Noob

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    @marciolsf and anyone interested, I created a new thread to answer. Not assumptions but real studies.
    "Reballing fix or fiction ?":
    https://www.psx-place.com/threads/reballing-fix-or-fiction.30251/#post-249257
     
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    LSL

    LSL Forum Noob

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    Thank you Workz_777 for idea! This is my version with tantalum chinese only!
    [​IMG]

    I intend to include the bridge this way:
    [​IMG]
     
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    LSL

    LSL Forum Noob

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    Thank you for hint. Before change NEc by tantalum I checked errors by UART, so I decided changed them.
     
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    joe musashi

    joe musashi Member

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    how did u do that can u learn me
     
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    LSL

    LSL Forum Noob

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    Years ago a friend gave me many kits of electronical introduction and each kit have 2 copper strips.
    [​IMG]

    I remove these copper strips and make them straight.
    [​IMG]

    I cut two thin parts and one wider.
    [​IMG]

    I solder the tantalums on this copper strips and finally solder on PS3 board
     
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    aminiani

    aminiani Forum Noob

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    i installed bride wires and continuity checked but still non-instant YLOD
     

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    squeept

    squeept Member

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    That looks like brass to me. Brass can have quite a bit more resistance than copper, and since these are moving so many amps, I'd be concerned about them heating up and burning. I'd at least check out some of it with a multimeter from the same batch you pulled the others from and make sure it's not some garbage pot metal with a resistance of like 40 ohms.
     

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