Hello.

I found a nice electronic guy in Denmark, he have worked on my mainboard.

He found those failures (!)

1) Missing connection from D2 / D3 to C50
2) Missing Connection from Power CN1 pin1 through L5 to GND on PCB
3) C/E on Q1 shortcut
4) Connections at the transformer plug wrong!

He found a replace ment for Q1, and there the powersuply is working again!

He recomment to change the tranformer to 2x15v (like jipe said) since the voltage on C50 are very close to 25v !!!!

Latest news, now he got a picture from the mainboard,and running test in two hours now



He try to find a better transformer (15v x 2 instead of the current one!)

So it seems like the good old turbo-r is back to life, thanks god

And he also thinks he solved the problem with the resistor of the ram ic's.

Perfect.............

-Claus-

Wow, that seems a fine and hard job!, congrats!

Nice : are you ready for 1M extend ? ;-)

great!!! Always good to have someone around who *really* knows what he's doing ;-)

JIPE.

Not right now, i dont want to do it my self, maybe some day if i can meet you on one of the msx meetings/fairs - you can do it for me My skills are not for that

-Claus-