Samsung LE32R87BD BN41-00813B Bordeaux PSU

[HawkMk165]

Greetings all:

Have been following the forum with regard to the early Samsung LCD TV's - in particular those that utilise the motherboard part No BN41-00813B - Bordeaux.

I've been having problems with my particular Samsung TV (model LE32R87BD) constantly switching itself on and off. In view of this, I took the advice from the forum regarding replacing various (SMD type) capacitors on the motherboard, etc.

But for all of the effort involved have been to no avail, I.e. I cannot seem to fix the problem - c'est la vie, sigh ........!

This being the case, I have seen some of the above motherboards (BN41-00813B - Bordeaux) for sale on EBAY and at reasonable prices, However there appears to be some debate regarding these motherboards.

Basically that the part number (BN41-00813B) isn't a "one fits all" solution, I.e. if I purchased one, it may not work within my particular TV - even though it is a "Bordeaux" type, BN41-00813B and looks identical to the one that I currently have?? I can only surmise that there must be an eprom device on the board which must be programmed for particular models?

Could I ask if anyone can confirm this, or is it just a ploy from the supplier's to inflate the prices?

Look forward to all constructive responses.

Cheers

Chris D

[nomoresonys]

Re: Samsung LE32R87BD BN41-00813B Bordeaux PSU

Can you list all the numbers on the usually white sticker on your mainboard?

[dick_barton]

Re: Samsung LE32R87BD BN41-00813B Bordeaux PSU

Have you seen this video https://www.youtube.com/watch?v=E9hU7qyAHUI

[budm]

Re: Samsung LE32R87BD BN41-00813B Bordeaux PSU

BN41-XXXXX is the part number for the blank PCB which can be stuffed to make many PCBA (PCB Assembly) for the required model TV as needed.
You need to match PCBA number on the stickers as suggested.

[HawkMk165]

Re: Samsung LE32R87BD BN41-00813B Bordeaux PSU

Have you seen this video https://www.youtube.com/watch?v=E9hU7qyAHUI

Thanks for the response.

I have seen the video, but the problem shown within said video is not what I’m experiencing, I.e. my TV does start without any problem. The issue is that it switches itself off after a few minutes and then goes into continuous a switch on/switch off loop.

I did change the capacitors on the board (within the shielded cage area) as shown specifically within the video and other capacitors as directed by the various related threads on the forum.

Admittedly I didn't change for the four 82uf capacitors - I didn't have any available at the time I performed the remedial action. Anyway, I've ordered some and will fit these when they arrive - hopefully changing these also will have the desired effect.

Cheers

Chris D

[HawkMk165]

Re: Samsung LE32R87BD BN41-00813B Bordeaux PSU

BN41-XXXXX is the part number for the blank PCB which can be stuffed to make many PCBA (PCB Assembly) for the required model TV as needed.
You need to match PCBA number on the stickers as suggested.

Thanks for the response and that of Dick Barton also.

Yeah it is as I suspected, the part number is for a "blank" pcb which requires programming for the particular TV - makes sense.

The boards I have seen for sale don't match my particular TV - so it was a good job I asked the question.

Thanks again

Cheers

Chris D

[cheeky2]

Re: Samsung LE32R87BD BN41-00813B Bordeaux PSU

It can be the eeprom and other capacitors on the board that fail as well!
The only way to check is to get an ESR meter and check them all!
Ensure that your power supply doesn't have any defective capacitors as well!