After many hours of cleaning and checking I can't find the problem.
When I switch the user interface cables from front to back and from back to front I get at startup four red LEDs blinking and shuts down.
What the hell can be the problem...? All this is without the cover plate and wheels.
Is there nobody who knows more in diagnosing a Segway or know how to measure the cu board by using the test points on it??
The front CU board get blinking green LEDs but the back CU board nothing.. I can't fourteen the cost of a new CU board....
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