printer hp laser jet pro m15a

[ut-norm]

Hello everyone, as the title suggests, I have this printer that does not turn on.
On the motherboard there are the primary voltages on the rectifier bridge of 320 v and on the double diode of the secondary of 24 v.
The voltages printed on a white background (I don't know if they are legible) of 24 v. , 5.4v and 3.3v are not present. There are no obvious burnt components, the capacitors seem ok. Unfortunately I have no schematic. Any of you know it?
Thanks for the reply
Hello everybody

[Dexter898]

Re: printer hp laser jet pro m15a

The same issue on HP M28a :-(

[Dexter898]

Re: printer hp laser jet pro m15a

If anybody know solution?

[toni31]

Re: printer hp laser jet pro m15a

The problem might be into formatter board. check the 24v on formatter board L2 or L4?
Mine the L2 is missing. I think there is the problem but i don't know the part.

[jejej]

Re: printer hp laser jet pro m15a

I was missing L4. I have put the coil and the printer already works. Thank you very much for your help.

[MHM007]

Re: printer hp laser jet pro m15a

The part L4 is also missing from my bard. What is the name and model of this component? I need this information for buying the component. I will be appreciate it if you could tell me about details of this component.