(Topic ID: 280998)

Stern RBION not booting

By Adams_Tales

1 year ago

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#1 1 year ago

Dear forum
I got a RBION a couple of months ago and just finished shopping it - after I have been playing it for a while.

Now, when I try to turn it on it simply won’t boot. Symptoms are that the screen is not turning on and the relay + L204 on the power driver board is clicking (see picture) and with it the GI and all lamps too.

When I seek info it seems to be a well known issue.

I measured 5.03V on both power driver and CPU boards. I checked fuses and flat cable as well. Also I measured CN2 and VR 1 & 2. All as it is supposed to be.

I am better at mechanics than electronics and also I am way more experienced with Bally/Williams. So now I am stuck.

Any suggestions where to go from here?

I saw advice that other boards may drag voltage down but I am not sure exactly what to disconnect in order to isolate the problem.

Thanks in advance


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