Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

[martino]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

I do believe this to be plasma(correct?) so there is no T-con board.
Lot's of 60" and 64" plasma's from samsung suffer from bad solder joints on the power supply.Take a good look at all the components on the heatsinks. Sometimes it's really hard to see if they are cracked or not.

Read post #3 cough cough.

[kyij]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

So far, so good. Thanks everyone for the help. Hopefully I don't have to return to the forums for this tv!

[kyij]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

Next = re-solder QS804,QS802,QM805 and DX852.
Re-test.

I did both of your steps and have the TV playing the movie again; good so far. I would have to say QS804 definitely looked like it needed a touch up. Will update after I let the movie play through and put the back on and retest. Thanks

[Terryfictv]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

Next = re-solder QS804,QS802,QM805 and DX852.
Re-test.

[Terryfictv]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

You are not contending with a short ! An intermittent open connection is more likely.
Next step is to scrape clean the black off the ground connects on the solder side....
The broken circle contacts where the mounting screws hold the PC board in place.
I can clearly see in your pix ! All should be shiny...re-test after you do this step and
if it does not fix, we will go to the next step.

[kyij]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

I hooked the board back in out of curiosity and it's been on for 30+ minutes playing the movie off a USB. Weird that I am technically 2/2 with it working when the back plate is off. I just don't imagine anything could be shorting, plus I would assume a short would mean instant on/off, vs being on for 2 minutes.

--Edit--

Movie finished and it is still on. I may try to screw the back cover and leave it on the ground and see.

[kyij]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

Sorry I meant soldered side! It's been a very long day !

No worries, I was going to upload both sides but forgot too.

[Terryfictv]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

Sorry I meant soldered side! It's been a very long day !

[kyij]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

Attached are each quadrant.

[Terryfictv]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

Pix of component side divided in four quadrants ( half / half = too large )
So, four pix should show with magnifier....

[kyij]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

Not a problem as I know it's hard to tell from just pictures. Took a picture of the front and the back, for comparison. Let me know if you need a closer up picture.

I know there are a lot of repair kits sold online for the Samsung power boards which contain these regulator IC's. Do you think they just need resoldered or replaced? Is there a way to test them without applying a input voltage?

PS: It does look like there is some corrosion on the QS802, think that is the issue?

Thanks

[Terryfictv]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

Ooopps! Evidently the removed blob was not covering the pins of the IC !
Can you take a close-up pix of component side beneath area 2 ?

[Terryfictv]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

Use an old toothbrush and alcohol to clean area.
Pins are two offset rows.....
Take another pix when clean....

[kyij]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

There appears to be components legs going through the power supply board from top to bottom and then connecting to the opto-isolators. The strange thing is I would have thought they would have soldered these components in because other componets on the bottom of the board are left with a very thin copper track to these IC's because of the hole drilled out out the centre of the pads. I think it would be worth doing a continuity check.

I see what you mean. There appears to be a wire on the flip side that connects two of the legs of the opto-isolators. When I was searching more on these, it seems like they should be tested against resistance rather then continuity. The continuity 0's for a few leads but the resistance varies from each pair.

[kyij]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

Remove clear "blob" on the solder side of board ( area #2 )
Leave white blob on component side alone for now !

Yea I should've known you meant the solder side. I am almost done cleaning the area but here is a picture. Although I am not 100% certain which solder joints are for the regulator IC. On other areas of the board, they seem to be denoted with a "Q" but I do not see that in this case. Highlighted is the 3 pins I believe could be for it, but again, not certain.

Edit - now that I look at that region, I am not even sure those are for it, as the upper solder joint of the triangle appears to be connected with the solder joint to the right of it.

[Terryfictv]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

Remove clear "blob" on the solder side of board ( area #2 )
Leave white blob on component side alone for now !

[dick_barton]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

There appears to be components legs going through the power supply board from top to bottom and then connecting to the opto-isolators. The strange thing is I would have thought they would have soldered these components in because other componets on the bottom of the board are left with a very thin copper track to these IC's because of the hole drilled out out the centre of the pads. I think it would be worth doing a continuity check.

[kyij]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

on the BOTTOM of the board

Okay. Working on it now. And sorry for my ignorance, I just only saw a relay, an inductor, the 275v relay. Plus what looks like a green resistor? Did not see what appeared as a regulator IC, hence why I asked.

[Terryfictv]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

on the BOTTOM of the board

[kyij]

Re: Samsung PN60E6000GF 60" Smart TV turns off, red flashing power light

See the silicone "blob" on the bottom of the power supply board ?
Remove it and clean the area with denatured alcohol then
re-solder the pins of the regulator IC.
HTH.

Are you talking about the silicone blob "1" or "2"? Do you think it has to be replaced or just resoldered? Thanks