Insignia NS-L42Q-10A with no power/dead

[tom66]

Re: Insignia NS-L42Q-10A with no power/dead

Yeah. From each outer pin of the bridge to each cap leg.

[budm]

Re: Insignia NS-L42Q-10A with no power/dead

Can you please post good,clear pictures so I can trace out the connection and be able to read the part designators.
Since this PS has PFC circuits, the Bridge + output will not be connected directly to the caps +, it should have a blocking Diode between the two connections.

[tom66]

Re: Insignia NS-L42Q-10A with no power/dead

That's a good point... instead of continuity, there should be one diode drop one way. Could be an open PFC diode. It's a fairly fundamental problem, it's likely a single component in series with the mains somewhere.

[budm]

Re: Insignia NS-L42Q-10A with no power/dead

This looks like it has two PFC chokes, but I really need good pictures to verify things.

[tom66]

Re: Insignia NS-L42Q-10A with no power/dead

It is more common nowadays, use two chokes to get a higher current and higher inductance instead of one larger choke. Seems strange to me, though. Twice the winding and assembly effort...

[waitery]

Re: Insignia NS-L42Q-10A with no power/dead

Sorry for being gone the past few days. I had to run out of town for work and I needed to get a better camera in order to get the detail that you are looking for. Here are some more focused shots of the board that you requested. Please let me know what I can do to help troubleshoot this and thank you for your time!

[Ls1ftw]

Re: Insignia NS-L42Q-10A with no power/dead

Bringing post from dead any luck on this?