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Need main board for Samsung HG40NC690DF

Posted: Fri Oct 31, 2014 11:07 am
by joball70
Hello All,

Was wondering if anyone had a main board for a Samsung HG40NC690DF? I've looked on ebay, but nothing. These are very new tv's. The main board part# is BN94-0746E.

All the tv does, is double blink 5 times, then pauses, then does it again. No picture or sound. I disconnected the thin cable from main board to power board...the backlight pops on. So i am figuring the problem lies with the m.b.

I already tried the eeprom trick, and still only blinks on the power LED....so i'm guessing the m.b. is fried :(

Re: Need main board for Samsung HG40NC690DF

Posted: Sat Nov 01, 2014 3:56 am
by rK1337
Hi, look at your mainboard if it has corrupt electrolytic capacitors. This is the most reason for a blinking Samsung TV.

Take a photo of your mainboard and send it in your thread

rK1337

Re: Need main board for Samsung HG40NC690DF

Posted: Sat Nov 01, 2014 10:11 am
by joball70
Thx for responding rK1337!!

I took some pics of the main board, and also the power and tcon boards.

After some further researching....does this board have 2 eeproms. ic901(s24c51) and ic902(s24c02)?!? I hope i didn't short out the wrong one!!! Why can't samsung label the eeprom chip, with the name "eeprom"...Lol

The only capacitors i saw were on the power board. They looked good to me. I am not sure what the electrolytic capacitors look like, on the main board...

Re: Need main board for Samsung HG40NC690DF

Posted: Sat Nov 01, 2014 10:15 am
by joball70
Here are 5 more pics

Re: Need main board for Samsung HG40NC690DF

Posted: Sat Nov 01, 2014 12:32 pm
by rK1337
Are you hearing a click if you turn on your TV?

Re: Need main board for Samsung HG40NC690DF

Posted: Sat Nov 01, 2014 5:56 pm
by joball70
Nope...No clicking at all.

At first there was the smart tv logo loop, every few seconds. But it hasn't even done that lately.

Re: Need main board for Samsung HG40NC690DF

Posted: Sat Nov 01, 2014 6:00 pm
by zoelechat
Why don't you claim the warranty if it's a brand new TV? Did you steal it? :D

Re: Need main board for Samsung HG40NC690DF

Posted: Sat Nov 01, 2014 6:05 pm
by joball70
Lol...got it off of ebay. That's what i was going to do next, is calling samsung....if i couldn't be able to fix. Btw, what is samsungs warranty #?

Nevermind...samsung most likely will not do warranty, if tv was bought off of ebay!!

Live and learn :\

Re: Need main board for Samsung HG40NC690DF

Posted: Sun Nov 02, 2014 3:29 am
by rK1337
The best option is to buy a new TV, you can get a new 40 Inch from Samsung for 400 - 500 Dollar or Euro