Question Help please, Find the Short

Discussion in 'Wii' started by Nicholas298, Dec 4, 2019 at 12:21 AM.

  1. Nicholas298 .

    Joined:
    Sep 8, 2019
    Messages:
    39
    Likes Received:
    24
    Location:
    Louisiana
    Portables:
    0
    Ok so I’ve been in contact with Gman about this and I wanted to see if anyone else could assist, the wiipms board is 100% working properly. However, when I connect it to the Wii motherboard, the voltage shows up but quickly shuts back off (probably because of a short somewhere). I know it may be almost impossible for y’all to help me figure out exactly where the short is. I measured the resistance in the voltage points on the Wii :
    (3.3v reads 8.6 k Ohms)
    (1.15v reads 45 ohms)
    (1.0v reads 220 ohms).
    Thank you in advance to anyone who can help. upload_2019-12-3_18-17-56.jpeg upload_2019-12-3_18-18-14.jpeg upload_2019-12-3_18-18-32.jpeg upload_2019-12-3_18-18-42.jpeg upload_2019-12-3_18-18-54.jpeg upload_2019-12-3_18-19-4.jpeg upload_2019-12-3_18-18-4.jpeg
     
    Last edited: Dec 4, 2019 at 12:27 AM
  2. jefflongo Broke BitBuilt Staff Member . .

    Joined:
    Dec 15, 2016
    Messages:
    777
    Likes Received:
    1,039
    Location:
    Ventura, CA
    Portables:
    1
    Honestly those resistances sound fine. Are you measuring those with the PMS connected? Also, does the voltage turn off for all the regulators or just one? I would additionally clean up things like this
     

    Attached Files:

  3. Nicholas298 .

    Joined:
    Sep 8, 2019
    Messages:
    39
    Likes Received:
    24
    Location:
    Louisiana
    Portables:
    0
    The resistance was measured without the pms connected

    And the voltage turns off for all WiiPMS regulators yes (even the ones not connected)
    But when the wiipms isn’t connected to the Wii, it reads fine

    cleaning up that spot your mentioned rn
     
  4. xsping .

    Joined:
    Dec 9, 2018
    Messages:
    91
    Likes Received:
    24
    what kind of main power supply you use, if the power supply can not supply enough amp less than 2A, the pms will automatic shut off,i think no shorts on your wii,because the resistance is very correct one
     
  5. xsping .

    Joined:
    Dec 9, 2018
    Messages:
    91
    Likes Received:
    24
    if you use 18650 battery ,it is better to use more than 2 pcs, because some battery can not support more than 3 A
     
  6. Nicholas298 .

    Joined:
    Sep 8, 2019
    Messages:
    39
    Likes Received:
    24
    Location:
    Louisiana
    Portables:
    0
    upload_2019-12-3_20-58-45.jpeg Panasonic HIXON NCR18650B 3.7V 3400mAh 18650 Battery Lipo Rechargeable Batteries)
     
    xsping likes this.
  7. xsping .

    Joined:
    Dec 9, 2018
    Messages:
    91
    Likes Received:
    24
    If the battery is relatively new one, your power supply is enough,i think. if you have 20 ohms -50 ohms resistor, you can connect pms 1v and 1.15v to the resistor , check pms shut down or not
     
    Nicholas298 likes this.
  8. xsping .

    Joined:
    Dec 9, 2018
    Messages:
    91
    Likes Received:
    24
    if you have a lot of time and interest in this project, you had better arrange an adjustable power supply, thus you can check the input amp and votage any time to avoid frying the wii
     
  9. Nicholas298 .

    Joined:
    Sep 8, 2019
    Messages:
    39
    Likes Received:
    24
    Location:
    Louisiana
    Portables:
    0
    Yes! Ok so progress, when I disconnect the 3.3v cable, the 1.5v and 1.0v are outputting the correct voltage. So the wiipms stays on when only connecting 1v and 1.15v. So this means something is wrong with when I connect the pms to the 3.3v? Any ideas?
     
    Last edited: Dec 4, 2019 at 3:27 AM
  10. xsping .

    Joined:
    Dec 9, 2018
    Messages:
    91
    Likes Received:
    24
    your wii 3.3v is 8k, it is impossible to shut down unless pms 3.3v have problem,if c9 of pms 3.3v is not connected to the pms board it can result in voltage drop.
     
    Nicholas298 likes this.
  11. Nicholas298 .

    Joined:
    Sep 8, 2019
    Messages:
    39
    Likes Received:
    24
    Location:
    Louisiana
    Portables:
    0
    Where on the board is C9? I bought this one already assembled
     
  12. cheese the tallest memer in town Staff Member . . .

    Joined:
    Mar 2, 2016
    Messages:
    2,490
    Likes Received:
    2,214
    Location:
    Florida
    What gauge is the wire going from the batteries to the pms and from the pms to the wii?
     
    Nicholas298 likes this.
  13. Nicholas298 .

    Joined:
    Sep 8, 2019
    Messages:
    39
    Likes Received:
    24
    Location:
    Louisiana
    Portables:
    0
    I’m not 100% sure, but I know It’s wire I took from a power cable that can carry 12v to power a screen
     
  14. Nicholas298 .

    Joined:
    Sep 8, 2019
    Messages:
    39
    Likes Received:
    24
    Location:
    Louisiana
    Portables:
    0
    upload_2019-12-3_21-39-26.jpeg Found it and here’s a picture
     
  15. xsping .

    Joined:
    Dec 9, 2018
    Messages:
    91
    Likes Received:
    24
    from outlook,it is no problem,you can check continuity by multimeter
     
  16. Nicholas298 .

    Joined:
    Sep 8, 2019
    Messages:
    39
    Likes Received:
    24
    Location:
    Louisiana
    Portables:
    0
    Ok Just checked the C9, it shows 18.85 mega ohms. What else do you think could be causing the problem? By the way, thank you and thanks Mr Cheese for helping me rn
     
    Last edited: Dec 4, 2019 at 4:15 AM
  17. xsping .

    Joined:
    Dec 9, 2018
    Messages:
    91
    Likes Received:
    24
    my
    my acknowledge about electronic is very limited,my final method for you is to change ground wire to thicker one
     
    Nicholas298 likes this.
  18. cheese the tallest memer in town Staff Member . . .

    Joined:
    Mar 2, 2016
    Messages:
    2,490
    Likes Received:
    2,214
    Location:
    Florida
    I'd say the wires look a little thin, so the pms probably thinks the batteries are dying
     
    Nicholas298 likes this.
  19. Nicholas298 .

    Joined:
    Sep 8, 2019
    Messages:
    39
    Likes Received:
    24
    Location:
    Louisiana
    Portables:
    0
    thanks guys, I’ve got some 22 awg wire on the way I’m going to use instead, I’ll keep y’all updated
     
    Stitches likes this.
  20. Stitches 2 and a Half Dollarydoos Staff Member . .

    Joined:
    Feb 5, 2017
    Messages:
    1,250
    Likes Received:
    1,145
    Location:
    Banana Bender Land, Australia
    Portables:
    6
    Yeah 22awg is the best for power and ground. Anything less can get fucky, we should probably add that to the PMS store page.
     
    cheese and Nicholas298 like this.

Share This Page

Loading...