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I have a 60" plasma tv that recently has suddenly gotten fuzzy with color distortion. It was turning itself off, so I replaced a couple capacitors on the sub power board and it worked great. A few days later it went fuzzy with color distortion. I have tested the x and y sustains and the Voltages check fine. The fuses are good. Is it possible it could be a capacitor? They all physically look ok? The only thing I haven't done is isolate the control board. But the board has five small green lights that go on when tv is plugged in. One of the green lights went out after this problem occured. Is it telling me there is a short somewhere? Please advise if you can.

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Your cannot look at a capacitor and determine by its outside look (unless it obviously looks discolored), if it is truly good.

Posted on Nov 25, 2014

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Posted on Jan 02, 2017

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SOURCE: LG plasma have an amber light when turning on then green then red

After all the research I found out that the IC on the Z board is bad and new board was ordered and replaced. The plasma work fine after that and picture is excellent with the new board. This forum is great, without this I couldn't fix it myself. Thank you.

Posted on Oct 21, 2009

SOURCE: Sanyo DP50710 50'' plasma TV turns on power light then turns off/ on on its own. No picture. After checking all fuses and capacitors, we installed rand new power supply board. Still the sa

The set will need to be professionally diagnosed. There could be a # of things causing your problem. Playing the guessing game can get quite expensive.

Posted on Sep 24, 2012

SD Tech
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SOURCE: Lg 50pc55 plasma- has sound but no display??

Quite possible-----replace all bad ones and also if possible the voltages coming out of that board need to be tested---to be honest other than the caps it sounds like a main board issue. The set may have been run too long with the bad caps.

Posted on Dec 08, 2012

gopakumarg43
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SOURCE: I have a 65" lg plasma tv and I recently replaced

Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
After replacement of the power board, Va&VS voltages are to be set according to the silk screen; can be located at the display panel, and it is a must for plasma displays.

Posted on Nov 06, 2014

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I have a 65" lg plasma tv and I recently replaced s few capacitors that were bad and the tv worked beautifully, yesteddy morning I was watching and suddenly the tv went dim and fuzzy like snow but I still...


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
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