I have CNC Lathe Mazak QT-200 , machine can not boot , CRT dark after power on . I have to check 5 VDC at main system FCA635LNYS it's 0 VDC. I try to take off and check component in P.C.B. it's dos not have burn. But I try to used power supply 5 VDC and put in P.C.B. I found ampere is too much approx' 1.5 Amp. So, I think might be some component have something wrong.
Waiting somebody have advice where are brake point.