Auteur Sujet: Help wanted - gc339 where are you :) - problems with restoring SEGA 400-5117  (Lu 223 fois)

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Hi

I hope that GC339 is still at this board, and might have a hint or two  :)

My issue is that I for the second time has restored two of my powersupplys for my Gloc, but i am unable to get any movement when i test them in my Sega G-loc.

I have one working powersupply, but i need two.

Back in my first post (https://www.gamoover.net/Forums/index.php?topic=36585.msg615688#msg615688) where i also where stuck with no movement,  I for some reason managed to get movement by changing the  ZD6, ZD7 and ZD11 and there where movement.

BUT this time i have tested (no fault), and changed the Z6,ZD7 and ZD11 but still no movement.

All the requried voltages are present. (step 1-4 in https://www.gamoover.net/Forums/index.php?topic=28660.0)
Also all the MOSFETS are OK step 6-8
I have tested all the K422 they are OK

Is there any way that i can narrow it it where the defective component is ?

TOP PCB


Bottom PCB


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Help wanted - gc339 where are you :) - problems with restoring SEGA 400-5117
« Réponse #1 le: Jeudi 28 Juin 2018, 23:31:51 pm »
  • Good afternoon :)

    Hope that someone has some tips...so that i can find the error in my two restored powersupplys.

    I am stuck at the moment.  :(

    I just had tried to restore my thirid power supply, i had hoped that it had worked but no.
    The third one I also have all the correct voltages, but the red LED is not lighting up at this one...?!?  (I have not tested it in the G-loc before i can get a red light)

    I GC339 is reading this post, give me a private message or an email to my address perjmolsen@hotmail.com I am willing to send my three defective powersuppelys to you and some money..