Samsung Plasma - PS/Capacitor Repair - AVS Forum
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post #1 of 6 Old 03-01-2012, 09:37 AM - Thread Starter
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I'm attempting to fix my old Samsung HPN5039 Plasma. I had what appears to be the extremely common issue where the display is not getting any power.

First off, I've already learned my lesson and went with a new Panasonic Viera for my main display, liked it so much I bought a second for the bedroom....

That said, I have an old 50" Samsung (I actually won it at a bar during the 2006 World Cup) that the display is no longer working on...the display just went black while watching it.

I'd like to try and fix it to use as my basement TV, which is really only used when we have house guests. I've read a bunch on the Capacitor issues of the Samsungs and took the back off to have a look. There does not appear to be any blown capacitors, they all look fine. I could only fine 2 fuses, and they look fine as well. I'm wondering if it's worth it to just replace the capacitors on the power supply or if there is something else I should look at first.

Here are the symptoms.
-When I plug the power in the red power indicator light comes on.
-When I turn the TV on, the normal power on click occurs and the red power indicator light flashes 5 times then turns off.
-This is the normal behavior for this TV at power up.

I took some pictures if that would help...if it ends up needing a new $100+ board I'll prob. just junk it as I'm mostly trying to fix this for fun.

Any thoughts...can the capacitors go bad without blowing? Will Power Supply Capacitor failure cause the above behavior?
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post #2 of 6 Old 03-01-2012, 02:20 PM
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Quote:


can the capacitors go bad without blowing?

Yes, they very rarely explode.
Look for bulging tops, or leaking electrolyte.
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post #3 of 6 Old 03-01-2012, 02:49 PM - Thread Starter
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I meant can they go bad without showing "bulging tops, or leaking electrolyte."

I looked at them all pretty closely, especially on the power board and did not see any bulging, but it shows all the signs of a capacitor issue...or possibly a fuse, I'm not sure.
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post #4 of 6 Old 03-01-2012, 02:49 PM - Thread Starter
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post #5 of 6 Old 03-01-2012, 02:50 PM - Thread Starter
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post #6 of 6 Old 03-02-2012, 06:18 AM
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Use a multimeter to check the fuses, and the caps...see how fast they charge, it'll gove you a clue as to their 'health'.
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