G-LOC Motor Driver boards / SEGA 400-5117 & 400-5117Y

[kroustibat]

messieurs je vous tire mon chapeau 

[fgruat]

du tonnerre surtout que geekvintage m'as trouvé une carte hs pour ma rad mobile

je vait pouvoir la réparer 

[powermax]

il est clair que c'est exellent !!! du beau boulot surtout quand on sait le nombre de cab en panne à cause de ces modules 
et surtout ça fait plaisir d'enfin prendre le temps de discuter un peu, tranquillement autour d'un bon café  ( elles datent un peu, mes dosettes senseo  )

[kaneda56]

Nice!

[DCE]

Je ne tombe que maintenant sur la conclusion positive de ce magnifique topic. Chapeau bas Monsieur gc339 !

[gc339]

Mise à jour du fichier nomenclature des composants : http://www.gamoover.net/gc339/SEGA/Nomenclature.ods

Fil de discussion/Thread associé (élaboration du schéma) : http://www.gamoover.net/Forums/index.php?topic=28406.0

[berty]

I need some help from @gc339 or others with experience.

I've recently rebuilt my SEGA 400-5117Y driver board using gc339's instructions here but I am still having trouble. I am not getting 5v DC at IC8 and I am not getting 12v DC at the fan point. Here is what I have found;

1. I am getting 305V DC the L2 Transformer and R24. (I am using the 100V AC input voltage from an isolation transformer).
2. When I remove D3, D4, D10 and D11 I can get 2.0V DC at the fan point
3. When I put D3, D4, D10 and D11 back in the board, I get 0V DC at the fan point.

ZD01 and ZD02 have tested fine. Here is a link to all of the parts that I have replaced.

https://docs.google.com/spreadsheets/d/1nvmMJfTJugMmD8D6rF05rTHo-9x-n6FYH5TrlbLBnp0/edit?usp=sharing

[pn_jeux]

Bonjour, quelle persévérance!... J'avais tenté d'en dépanner une qui était bien grillée (tentative avec transfos externes.), sans réussir. (beaucoup de conditions et détections de défauts.)

[berty]

I need some help from @gc339 or others with experience.

I've recently rebuilt my SEGA 400-5117Y driver board using gc339's instructions here but I am still having trouble. I am not getting 5v DC at IC8 and I am not getting 12v DC at the fan point. Here is what I have found;

1. I am getting 305V DC the L2 Transformer and R24. (I am using the 100V AC input voltage from an isolation transformer).
2. When I remove D3, D4, D10 and D11 I can get 2.0V DC at the fan point
3. When I put D3, D4, D10 and D11 back in the board, I get 0V DC at the fan point.

ZD01 and ZD02 have tested fine. Here is a link to all of the parts that I have replaced.

https://docs.google.com/spreadsheets/d/1nvmMJfTJugMmD8D6rF05rTHo-9x-n6FYH5TrlbLBnp0/edit?usp=sharing

I fixed the issue. I had the wrong resistor at R24 - It should be 2.2 Ohm, not 220 Ohm.

[sushy18]

Nice !

Thank you for taking the time to come and share the fruits of your labor.