Schema for BN94-00700A (Samsung LE46M)

[Gustaf]

Hi

Im new to this forum and it seems like a placering for me.

Om looking for schema to a powerboard BN94-00700A located on a Samsung LE46M. I have located 2 bad caps and replaced them but it seem to be something more, i dont get all the different voltage in place.

Tanks in advance
Gustaf

[gilly1984]

Re: Schema for BN94-00700A (Samsung LE46M)

Struggling to find it here.

Say Hi to Ghostrider for me

[tom66]

Re: Schema for BN94-00700A (Samsung LE46M)

BN94 is the PCB code. The assembly (actual components) should be BN44 something, do you see stickers like that?

[Gustaf]

Re: Schema for BN94-00700A (Samsung LE46M)

Hi

Tanks for the quick response.

The nummer BN94-00700A is on a sticker, there is another code printed on the bord BN41-00542A

[tom66]

Re: Schema for BN94-00700A (Samsung LE46M)

Hmm, no luck myself with that number either - Perhaps we can help you debug the problem if you post some pictures of the power supply.

[Gustaf]

Re: Schema for BN94-00700A (Samsung LE46M)

ok, thanks. Here are some pictures. I wrote down the volt written on the board and the ones i got at the moment. The blue marked caps are the one i replaced.

Any ideas?

[tom66]

Re: Schema for BN94-00700A (Samsung LE46M)

Hmm, I would expect something to be damaged if 13V was actually 24V; are you certain you're probing the right point? Does the TV standby indicator come on, can you turn the TV on and off, do you get a backlight? Budm had one of these with no picture - was a blown fuse on the T-con, nice easy fix.

[Gustaf]

Re: Schema for BN94-00700A (Samsung LE46M)

Yes its the right point. The tv turns on, the start up melody sounds and the backlight turns on. Where is the t-con located?

[tom66]

Re: Schema for BN94-00700A (Samsung LE46M)

https://www.badcaps.net/forum/showthread.php?t=20871

Fuse marked "CP" on the board.

[gilly1984]

Re: Schema for BN94-00700A (Samsung LE46M)

I googled the tv, and tried a few variants of the psu but came up with nothing. Does samsung not want it out and about?

[Gustaf]

Re: Schema for BN94-00700A (Samsung LE46M)

Hi

Seems like a hard one to get hold off.
Thanks for help anyway.

The search will go on :-)