Nec/tokin oe128 testing

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • lcdcaps1
    Badcaps Veteran
    • Oct 2011
    • 322
    #1

    Nec/tokin oe128 testing

    Hi
    I am hoping that some one can help me test oe128 capacitor.
    Ideally can this be tested without removing from the pcb

    The oe128 is located on the ps3. The side without the rsx chip.
    I am trouble shooting a YLod ps3 and want to rule out wether this is the culprit or not.

    Please help gurus
    thanks
    Tags: None
    • Ramee
      Badcaps Veteran
      • Jul 2014
      • 218
      • Israel
      #2
      Re: Nec/tokin oe128 testing

      May be you can if parallel, use DMM (Digital multimeter). But you can not test ESR (Equivalent series resistance).

        Comment

        • lcdcaps1
          Badcaps Veteran
          • Oct 2011
          • 322
          #3
          Re: Nec/tokin oe128 testing

          Hi
          Seems like a silly question without the schematics in front of me
          How would i know if they are in parallel

            Comment

            • Condover
              New Member
              • May 2014
              • 2
              • UK
              #4
              Re: Nec/tokin oe128 testing

              I am testing an oe128 in a Toshiba Equiuum A200. Now I know I have a bad un and a good un. the oe128 is essentially two capacitors with a common join in the middle. The good unit measures 13-14mf on my capacitance meter, which has a 20mf maximum scale. For each cap and is the same for both caps and both polarities. On my now confirmed baddie it is only 4mf (4000uf) but it was hard to see this by resistance alone. In fact it looks fine just using a resistance meter. Obviously not shorted! Note I was testing in circuit.

                Comment

                • Djosla
                  Badcaps Veteran
                  • Dec 2012
                  • 246
                  • Montenegro
                  #5
                  Re: Nec/tokin oe128 testing

                  You can not test it properly in circuit...I would not bother with that...Just change it with 330uf capacitors if you have issues...There is bih topic here about that...Test cpu vcore voltage with scope ,you will have small oscillating when it`s bad...

                    Comment

                    Previous template Next

                    Related Topics

                    Collapse
                    • jkucukov
                      PS3 FAT NEC/TOKIN Resistance Testing, need help interpreting values
                      by jkucukov
                      I'm in process of diagnosing the yellow light of death symptom on my PS3 FAT console CECHG01, in process of getting the Arduino gadget to be able to access Syscon and be able to read fault codes. In the meantime, I'm trying to measure resistance of the NEC/Tokins while still attached to the board. I took the Ohm readings from each of the NEC/Tokins from front and back of the board (4 from the RSX and 4 from the CPU chips).

                      What I gathered in the attached pictures are values from the CPU NEC/Tokins are consistently measuring 1.6 Ohms while on the RSX they measure 3.4 Ohms except for...
                      10-03-2025, 03:20 PM
                    • Chaks
                      NEC TOKIN 0E907 Fault in Toshiba L510 Laptop - Can I use any of these caps
                      by Chaks
                      Hi,
                      My old Toshiba L510 Laptop which was working fine with Ubuntu 22 Server till couple of days back. But suddenly I got a blank screen with fan spinning and no HDD activity. I tried all options and zeroed to a suspected/faulty NEC TOKIN.
                      So I removed the faulty NEC TOKIN 0E907 and want to know if I can use the capacitors I have salvaged from old Motherboard. These caps are from old Mackbook Pro Motherboard and I am not sure if any of these caps will work.
                      Can anyone please guide me....
                      09-12-2024, 12:06 PM
                    • sam_sam_sam
                      I found this video when looking for something else but this is how to use a phone charger for testing LED light bulbs
                      by sam_sam_sam
                      Here is the website link for this project that I plan on making

                      https://www.youtube.com/watch?v=atLERDZx0Q8

                      But I going to use a different enclosure for this project and make it more professional looking and use safety features that was not used in this video

                      I have some 24 volt switching power supply from my battery testing machine that I modified for a different switching power supply that is more suited for my new application and new purpose for testing BMS protection boards

                      If can find one that I can modify the voltage output on I have a...
                      09-09-2024, 04:47 AM
                    • sam_sam_sam
                      Some New Preliminary testing of 21700 Tool battery cells to 2.00
                      by sam_sam_sam
                      I decided to try a new approach to testing unbalanced battery cells with my battery testing machine that has more graph curve information and it looks like if you discharge them to 2.00 volts if the battery voltage does not come back to over 3.something volts you have some kind of issue with that battery cell

                      I going to do more testing and see if is the case or not

                      More to come later
                      05-04-2023, 05:11 AM
                    • Woodsworth
                      PS3 CECHC03 60GB YLOD Troubleshooting
                      by Woodsworth
                      I have a post on psx-place for this but thought I'd try here as well in case anyone has experience or the schematics or any kind of help. Here's the original post from psx-place:
                      START
                      Hi, so I bought a YLOD Fat PS3 as I wanted a repair project and thought it would be a good way to get experience. I was able to solder to the RX, TX and Diag pads on the COK-002 motherboard and was able to get external access and retrieved the codes. I haven't powered it on beforehand so these should be the last ones. I did try to get internal access immediately after but kept getting scopen response...
                      03-19-2024, 07:58 AM
                    • Loading...
                    • No more items.
                    Working...