Question about LG 42PX5D 42 in. Plasma HDTV

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Sparkles Hi, I came across this LG 42PX5D 42 in. HDTV Plasma Television question on FixYa.com and thought you might be interested in reading it. Sparkles. My set is around 16 months old & has recently started doing this (appears to be getting worse). it is linked to a Sky HD box. I have several inputs including P.C using-(RGB), SKY -(HDMI), Home Cinema -(AV4) and DVD -(gold plate scart (AV2). The problem is active on all connections/inputs despite checking the connections. Occasionally (very rarely) it disappears for a programme or 2. At first didn't know if it was my sky signal strength but obviously, cant be that, if its active on all inputs. going to try the idea about panel power supply on fixya to see if it works. Regards, jason1

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Call tech ..suggest main power pack..

Posted on Nov 26, 2007

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Posted on Jan 02, 2017

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I am looking for either LCD or Plasma TV 40-47' that is CableCARD slot equip. I found a couple offering the LG 42PX5D claiming it has CableCARD However when I look at LG specs it seems to say it does not....


It is Digital Cable Ready (CableCARD)

I'd stay away from them personally because of the following reasons:
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Are you sure theres no sound, or is there a possibility the unit may be in AV?... Most likely cause is the Y-Sustain board blowing.

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You probably need the 6,2mm size connectors and you can find them at www.BogueEngineering.com
Hope that helps, Gary

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Dec 31, 2008 | LG 42PX5D 42 in. Plasma HDTV

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Unfortunately, that board is the inverter board. And for this model the inverter board is only supplied with the the PDP panel. The panel is quite expensive, here's a link if needed:

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The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main 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. 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.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

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Coloured sparkles appear in dark areas of picture


Sometimes just adjusting the VSCAN voltage inthe set will cure it. Other times it will be a faulty panel. Either case requires a technician to do the repairs.

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change the z-sus panel or control panel

Feb 28, 2008 | LG 42PX5D 42 in. Plasma HDTV

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check all inputs on tv ,also check if menu on tv is working ,make sure lines arent being produce by another source, cable box etcc..If menu and or OSD are affected .Then there is a good chance you have lightning damaged some where in signal section on tv .

Dec 03, 2007 | LG 42PX5D 42 in. Plasma HDTV

7 Answers

Sparkles


Makes you wonder why nobody is taking on the problem, doesn't it?
Well , to the best of my knowledge, it is because nobody really can.
To understand why you have to understand what do they sparkles come from.
They are random electricity discharges coming from capacitors or other components that act like capacitors, but mostly capacitors.
When laymen hear about capacitors they usually associate the word with bulged electrolytic capacitors, which often cause problems in electronics of all kind.
Well this time it isn't about them.
It's about all other capacitors - or other components exposing similar qualities - which are installed on the board. Most of them are small filter capacitors put in parallel to the big ones or to other passive components such as diodes and resistors.
The excessive heat developed by the sustain boards damages those capacitors. It hardens the electrostatic material they are made of and small breaks in it start occurring at voltages that shouldn't otherwise be causing issues.
The trouble is, they can be everywhere. You can't just pinpoint which ones were caught at fault and causing the sparkles.
When it gets REALLY bad eventually the whole capacitor burns and either shorts or, more commonly, just breaks.
Believe it or not I've seen a board that exploded before my very eyes and , after the explosion, started working LIKE A CHARM!
Turned out a small filter capacitor had blown. It as not essential for the board's functionality and after being problematic for so long and causing image deffects it had eventually shorted completely and literally exploded.
Luckily, the short it had created was too short in time and apparently in a circuit that could take the load for a short while without getting damaged.
So after it blew everything worked just great!
it's a real story from my repair experience.
Hope this helps all consumers, DIY enthusiasts and competitors alike :-)
For more you are welcome to visit our site and read our tech repair blog at
http://www.coppelltvrepair.com
and
http://blog.coppelltvrepair.com .
Good luck!

Aug 26, 2007 | LG 42PX5D 42 in. Plasma HDTV

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