Hello friends, sorry for the English in your forum but this was the only place I´ve found information about the Delonghi 5450 machine and I just can´t write/read in German.
I´ve found this jewel in a Delonghi service here in Brazil, the technician couldn´t repair the power board and this specific model is not supported by the Brazilian Delonghi, so I cannot have access to it´s repair manual.
I´ve already found the problem of the power board, the usual: LNK364 (shorted), TL431 (defective) and the 47R 3W input resistor, (shorted) apparently the power board is now ok but I´ve no idea how to reconnect the wires and I´m afraid to loose everything trying!

Please, could any of you help me sending the repair/service manual for this model? Or, if not possible, could anyone send me at least the wiring diagram with the pinnout of the power board so that I can reassemble it.
thank you in advance!

Thanks for your answers, yes, it´s a 5450 EX1. Unfortunately almost all the wires were cut by the technician so it´s really difficult to reassemble. In the board there are no names for the devices to be connected (at least not in the model I have). I´ve tried to figure out but I´m afraid to burn something. Everything seems to be ok (cup heater, boiler etc.) I´ve been trying to get it´s repair manual for a couple of days with no success. I´ve found other models service manuals but not this one. I´ve also tried to email Delonghi in Italy but they never repplied.
This forum is awesome! I´ve seen someone repairing a PowerBoard just like mine and discovered a PNP transistor shorted that I could not notice at first.
If someone could help me that would be really kind.
I´ll try to attach some pictures of the powerboard to help you to identify it.
You can see I´ve removed the faulty componentes except the BC807 that I´ve just ordered and a blown 470uF electrolytic capacitor.
Thanks again for any help.
regards,

I don´t have a 3W resistor at this moment, just used this 1/4W to test the board as long as the resistor works as a fuse...

Is there any site where we can download/buy the service manuals of the Delonghi machines?

Thanks Roland11! I´ve already ordered the missing components including a proper 3W resistor [img]https://www.kaffee-welt.net/wcf/images/smilies/emoji/people/1f602.png[/img], just waiting them arrive from China in the next 60 days kkkkkk.

Dear friends, thanks for your time and help, I´ve finally managed to connect all the wires, although I cannot make the machine work because the PIC ucontroler is short circuited.
thanks again and sorry for any problem.
regards!