possible red blinking light code, no power on samsung led tv

[pctektgg]

I have a samsung led model un40d6000sfxza, that as of last night it simply turn off on its own and now it has no power and seems likes its trying to tell me something with blinking red light code.

The sequence goes like this: on, on, very slight pause, on, on, very slight pause, on, on, very slight pause, on, on, very slight pause, on, on, after this 10th count it goes to a longer pause like its starting all over with the 2 at a time blinks sequence up to 10 counts again and starts all over.

I removed back panel and visually the power board looks good, I see no burnt components, no leaking/bulging caps but thats all I currently know what to do. Im not a tv tech but I can solder and swap boards and take tv's and electronics apart just not alot experience in electronics in terms of testing parts with a meter and such. I do have a volt meter btw.

But with directions from someone maybe I can follow if told how too. Anyone know what the blinking lights mean or know whats up? thanks

[sordids999]

Re: possible red blinking light code, no power on samsung led tv

Posting pictures of the back of your tv showing the boards with clear pictures may help you more with fixing your problem

[pctektgg]

Re: possible red blinking light code, no power on samsung led tv

Ok doing that now thanks....

heres the pictures there's 2 each for the power and main board, and one for that tcon cable I think that's what its called.

Also got a question about fuses I see typically in tvs like this those cartridge white ceramic type fuses like this power board has how would you know if they are bad it will have a burnt black appearance to it right? It wont be mighty white right? Thanks

[newtothis]

Re: possible red blinking light code, no power on samsung led tv

Have a multimeter to hand?

[pctektgg]

Re: possible red blinking light code, no power on samsung led tv

Have a multimeter to hand?

Yes I do.

I was just readying another post on here a guy last year has same model as mine and his fix was the main board and not the power board.

[newtothis]

Re: possible red blinking light code, no power on samsung led tv

Well we will go through diagnosis of the PSU first anyway.

As to testing fuses you would use ohm setting and check by testing across the fuse, >1ohm bad and <1ohm a good fuse.

Ok set your DMM to DCV and test each pin on connector CN1. List the results like this :

STB - 0v
5vS - 5v

etc
etc

[newtothis]

Re: possible red blinking light code, no power on samsung led tv

Sorry forgot to say, Black probe to chassis (screw will do) and red probe to each pin in turn

[pctektgg]

Re: possible red blinking light code, no power on samsung led tv

Well we will go through diagnosis of the PSU first anyway.

As to testing fuses you would use ohm setting and check by testing across the fuse, >1ohm bad and <1ohm a good fuse.

Ok set your DMM to DCV and test each pin on connector CN1. List the results like this :

STB - 0v
5vS - 5v

etc
etc

Hmm so Im looking for a component on the power board that says cn1 right? I don't think I see one

[newtothis]

Re: possible red blinking light code, no power on samsung led tv

Outlined

[pctektgg]

Re: possible red blinking light code, no power on samsung led tv

Outlined

Sorry the tv has to be plugged in and with the red front lights flashing right? btw the picture you posted is not the board i have not sure if your helping someone else and you thought I was them.

In the picture you gave me I see a similar connector on this board but it doesn't say cn1 says another number and in writing it has voltage readings of 1,3,5,7 etc pins it should be reading Im assuming, nothing that says stb like you said.

[budm]

Re: possible red blinking light code, no power on samsung led tv

https://www.badcaps.net/forum/attach...2&d=1429748154
Connector CNM803A.
The exposed pins on top are ODD number pins, the EVEN number pins are on the bottom side of the board. The white triangle is pin 1.
The list of the pin names are printed on the board.

[pctektgg]

Re: possible red blinking light code, no power on samsung led tv

https://www.badcaps.net/forum/attach...2&d=1429748154
Connector CNM803A.
The exposed pins on top are ODD number pins, the EVEN number pins are on the bottom side of the board. The white triangle is pin 1.
The list of the pin names are printed on the board.

Yeah I figure thats the connector he was trying to say. So i have to remove the board from tv and test all this without power and out of tv right?

[pctektgg]

Re: possible red blinking light code, no power on samsung led tv

Check out this video same exact model code I have and same symptoms with the lights flash sequence, the fix in the video was a new led backlight part, one of the led's was burnt. Does one single burnt led cause it to not turn on?

https://www.youtube.com/watch?v=xsQQuiP3KAE

[newtothis]

Re: possible red blinking light code, no power on samsung led tv

Sorry yes I was dealing with other threads too.

No it has to be in the tv connected and powered on

[newtothis]

Re: possible red blinking light code, no power on samsung led tv

Check out this video same exact model code I have and same symptoms with the lights flash sequence, the fix in the video was a new led backlight part, one of the led's was burnt. Does one single burnt led cause it to not turn on?

https://www.youtube.com/watch?v=xsQQuiP3KAE

Yes it can if its failed open.

We can figure it out from voltage outputs etc

[pctektgg]

Re: possible red blinking light code, no power on samsung led tv

Yes it can if its failed open.

We can figure it out from voltage outputs etc

Ok but the pins underneath the board do we need to test those too only the top are exposed?

[newtothis]

Re: possible red blinking light code, no power on samsung led tv

I use a pin in the connector itself at the side of each wire then test against that

[pctektgg]

Re: possible red blinking light code, no power on samsung led tv

Anyone here live can continue in helping find out what component is messed up on my tv....

[newtothis]

Re: possible red blinking light code, no power on samsung led tv

Yes when we get those voltages off the connector

[pctektgg]

Re: possible red blinking light code, no power on samsung led tv

OK so I have to plug in and turn on the tv right? actually tv wont necessary turn on because right away from plugging it in the red light bottom right corner of the tv will start the light code sequence but maybe that's enough to test.

The black probe I put against a metal screw or chassis right then touch each pin and write down the readings right?