Samsung LCD TV 32" fullHD won't turn on

[TBoneit]

Hi, I'm going to suggest going to here: http://www.badcaps.net/forum/forumdisplay.php?f=31 Which is Troubleshooting for TV sets and they may be able to help you. Possible you can find your exact model unfortunately not all Capacitors fail visibly. The fact that the failure is sporadic sounds as if one or more capacitors is failing and changing value beyond where the set will work.

Good Luck

[earthairfire]

Hi TBoneit and thanks for the reply.
I got a bunch of new capacitors today and replaced them all but the smallest one (the ones you see in my pic).
Nothing, nada. The TV still turns on, but no image appears and the power led blinks in a very high frequency (as per my video).

Other than the capacitors, what else could cause that?

Thanks,
Earth

[TBoneit]

That was why I suggested going there. there are several specs on capacitors beyond Capacitance and voltage.

The other reason was that there may be someone there now or in the past that has faced this problem and the resolution to it.

Interesting reading how many there have bought broke sets cheap and fixed them also.

Good Luck

[earthairfire]

Hi TBoneit,
I went to the website and got the capacitor specs from there before I bought them. So now I'm not too sure what to do.

What else can be replaced? Is there a light bulb or something that might be faulty?

Cheers,

[TBoneit]

Did you ask for any help with the error you are seeing, The flashing red light? There seem to be some knowledgeable people there.

[turk690]

Hi all,
As many of you, I started having issues with my Samsung LCD 40".

The TV set has been working fine for the past 2 years, but since I came back from abroad after 15 days off, I am able to turn it on sporadically only.

Upon pressing the on/off switch, the TV makes the clicking noise and the intro song, the screen kinda turns on (but is still black) and no image appears. The on/off led then starts blinking and sound works fine. http://youtu.be/mtYxzxAXroE

I tried to open the TV set to check for popped resistors but apparently everything is fine, which seems to rule out a power supply issue.

If you guys have any ideas I would really appreciate.

Cheers

If the sound works fine that usually means the power supply is OK. "The screen kinda turns on" seems as if the backlight doesn't turn on. Apart from capacitor/power supply issues, one other gremlin with standard LED TVs is the backlight assembly. When I say "assembly" I mean the whole chain: inverter supply (may or may not be separate from main power supply, with its own capacitor issues), inverter, then fluorescent lamps (CCFL, 2 or 4 depending on model). Depending on the design, when a CCFL becomes bad, the inverter may not turn on at all to prevent further damage. It's also possible for the inverter itself to become defective: the inverter transformers run hot, and if itself is not damaged, its pins may become cold-soldered to the PCB. Also, if not plugged tight, the connectors leading to the CCFL heat up then gradually melt or burn the connector itself.
Of the 100% power that an LCD TV or monitor consumes, some say between 60 to 80% is sucked up just by the backlight. That's why LED backlight has saved the day.

[kayakSteve]

Thanks ChellShock great video and it worked perfectly just be careful you don't use too much solder or you could short out the printed circuit board. Great advice. Best Regards Steve

[jpc2012]

Hi there

I too have a samsung 32 inch that blew tonight. I was watching a movie from my laptop through my tv with a standard hdmi lead plugged into the side port of the tv (think it was hdmi 3). I finished the movie, and shutdown my laptop. I then went to take the hdmi lead out of the tv and when i did the tv went off. i now cant switch it back on, no standby light or nothing. So i plugged the hdmi lead back in ( not plugged into anything the other end) and like magic the tv came back on. I proceeded to putting the tv back on to tv mode by pressing source on the remote. I then took the hdmi lead back out and the tv went off again, no standby light, nothing, and no is dead. I have turned it off at the mains, unplugged it, everything, but no joy. Can anyone help?

[loseoutagain]

Yea, Samsung used junk capacitors and had a class action suit filed against them and settled. Most of the LCD's will be repaired at no cost provided yours is one of those covered. Call 1-888-899-7602 and have your model number and serial number ready to start a claim. As long as it was bullt prior to 12/31/08 it's covered. I have this issue and called and was told I didn't qualify even though my model number (LN52A750) was one using the bad parts, but since mine was built 1/1/09 I lost out!!! ARE YOU KIDDING ME? ONE DAY LATER WHEN THEY WERE STILL USING THE SAME PARTS AND I LOSE OUT? Yea, so much for good will to customers. Any bets if I EVER buy another Samsung product in my lifetime? What do they say about good will? Take care of a customer and he tells 3 people. Screw a customer and he tells 30!!! Guess I won't be only one who loses out on a stupid decision.