Sw 1200 switcher

Re: Sw 1200 switcher

Postby jmass » Sat Feb 23, 2019 6:55 pm

Thanks for the good advice. I don't have a voltmeter so what I did was took the screws out on the board and lifted board as much as I could without disconnecting it. I had enough room to make contact with the contacts to the front of the loco that contact the bottom of the board and when I did it moved forward. So it seems as suggested the problem is either the DC chip or something on the board.
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Re: Sw 1200 switcher

Postby krokodil » Sun Feb 24, 2019 2:32 am

I takk to my friend, who run a service for model trains, and told me, that this is typical errir on the earlier MTB boards, some cheap diodes on the main board are underdimensioned.
Try to find somebody in your area with electronic experiences he can fix the problem in few minutes.
Greetings from Austria
E.T.
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