Power supply problem smr4 filter board

mmmh maybe you could help…i have a big problem with the power supply of
the smr4 board. the voltage before the diode is -9v and after its nearly
-0,2v. i used already three differnet types of diodes with the same results, so the diode is functional. the voltage on the feet 5 of the lt1054 is -0,3 and on the red and green testing point is no voltage. it seems something should really wrong.
you know what the reason for it?

Is the power supply center tip positive?

really. it was the problem. it works.i didnt know there are different types of power supply. i guessed is always the same,but it isnt so.