Dynex TV power supply

[whaase]

Re: Dynex TV power supply

I assume your meaning these caps? They confused me a bit. I am ordering off http://www.digikey.ca/

Can you point me to a replacement for these? I have all the rest of the caps on their way to replace everything.

Thanks, Walter

[newtothis]

Re: Dynex TV power supply

On about the BIG cap, Usually on a PFC they are 450v but yours is a 250v. Can you take a few photos around that big cap please... One directly above, and one angled at each quarter point (like North East South West) orientation so we can see around 'especially' so we can clearly see what is mounted to the heatsinks.

[budm]

Re: Dynex TV power supply

Please also upload good clear pictures of the bottom side of the board.

[whaase]

Re: Dynex TV power supply

Hope these are ok

Walter

[newtothis]

Re: Dynex TV power supply

Good clear one of the bottom of the board too please so we can trace the circuit.

Cheers

[whaase]

Re: Dynex TV power supply

Sorry, forgot that one.

I also included the service manual on post 7. It has the layout as well.

[newtothis]

Re: Dynex TV power supply

These joints look terrible.

Looks as if leaded solder is sitting on top of unleaded and they haven't been heated enough to allow the alloys to flow.

Some of them look like they are barely holding the leads.

I would suggest redoing them all, Make sure they get hot enough for them to flow properly.... Also some look like they need more solder added

[budm]

Re: Dynex TV power supply

I also wonder what kind of DCV between the two legs of that main filter 680uF 250VDC is.

[whaase]

Re: Dynex TV power supply

I'll let you know when all my new caps arrive.