Repair to Sigma DS 155 Shredder?

paper detector stops half way through function , have to switch to reverse and back again to every sheet , any answers ?

Mark
October 2012

Had the same problem , blown fuse and reverse motor function on. I found dry joints and broken track on the PCB where the photo transistor plugs in. Repaired the track and resoldered the pins and the unit started to work as normal in auto mode

S Bilkhu
January 2012

Hi, I've got the same problem, but now that I fixed the fuse, the photo transistor (it is in a little black case withe 4 wires and a white number on it) of the paper detector is dead (you can try this: if on revers position the electric motor turns, you got the same problem...) But I don't know which type of photo transistor I have to use...

FAGU
May 2010