Question about ESA PDP4294LV1 42 in. EDTV-Ready Plasma TV

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No picture, sound is good, just happened, no symptoms

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The caps (capacitors) in the powerboard are going out. This is a very common problem in all class and price ranges of modern lcd and plasma tv's/ monitor's. I don't know if this problem has been like this for awhile or it just started, but either way, if the tv takes an abnormal amount of time to "warm" up then it most likely will go out all the way sometime in the (near) future. If you have a tiny bit of will and knowledge ypou can open the unit and get to the print board. Examine this for "popped" capacitors, they will have a buldging top instead of a flat one. Im gonna try to include a pic of them here, if i can get it this time, I've tried bfore lol. But you can google image a "popped" or "bad" capacitor and you would be able, with ease, to diagnose if you have any of these. Usually only one or two. Radioshack sells capacitors (couple anyway) for $1.59 each. MAKE SURE the replacement is of the SAME voltage or HIGHER, or you will be right back replacing those 2. Every capacitor has a negative pole marked with an (-) on the side of the capacitor(by one of the "legs", always puit the negative (-) "leg" of the new capacitor in the same hole in the printboard as where the previous negative (-) "leg" of the capacitor was ( a capacitor with the negative and positive "legs" put in backwards will result in the new piece "popping" as sson as you turn it on!!) make sure the "uf" rating (for example the most common popped capacitor is the 1000 uf) is the same as the one you are replacing. I needed 1000 uf, 105 c and 26v (volt) ratings for the 1 capacitor I needed to replace to fix my LG 19" lcd panel monitor I found by the trash that the light came on off, but it didn't come on. I replaced that capacitor with ; 1000uf, 85 c and 36 v (volts0...It works fine eventhough the volts and the temperature rating (36v and 85c) was not the same as the (26v(volt) and 105c ) capacitor I removed !! Further, I've replaced capacitors that had the celcius rating of 105 with the only ones Radioshack had, namely 85 c(celsius) they have been working great, but I'm not sure about any effect, nor have I heard or read (yet?) about that making an urgent difference. Many threads that I've read people have done the same, so we should be ok (my stuff has been running good for a while longer then most brand new ones!.............(all these ratings ; 'uf ' and 'c' etc are on the side of the capacitor you are replacing and on the side of the ones you are replacing them with)...For all this all you need is the cheapest solder gun u can find (I bought one for $7.99 at Radioshack), a camera (to take pictures as you go to remember how to reassemble the unit) and, once you have your materials, 20 minutes to replace 2 or 3 capacitors and you are good to go...Most monitors and tvs (lcd/plasma) I've seen you have to lay flat on the ground/bed/blanket etc, to work on (screen side down). Usually there are 2 or 3 screws (or a few more) to remove, then you will have to carefully (its comes off easily most times)insert a flat screwdriver inbetween the casing and gently pry it up as you go around the whole frame. Sometimes you have to remove the little washer arouind the cable input orso, just be gentle and you cant go wrong. Once insidet here will be a box with wires running to the sides etc...unplug, gently, these wires and open the box. Inside you will find 2 or 3 circuitboards, check them all for "popped" capacitors, replace, reassemble and plug it in....Have fun becoming an overnight tv mechanic lol! If this helped (or not) then please rate, thank you!no picture, sound is good, just happened, no - dd9b50d.jpg

Posted on Feb 04, 2010

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Never a smart idea to downgrade the thermal rating of any component unless you want heat related issues later on.Downright dangerous and ignorant.. Most LG plasma issues are related to Y sustain board and others.

Posted on Feb 15, 2010

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1 Answer

What happen when you have sound and no picture


In flat panel TVs the symptom you describe suggests power supply failure

Apr 01, 2013 | Vizio Televison & Video

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Lg 42 no power


If its dead and no sound what so ever its usually the power board and if so you can usually get replacement boards by contacting the people over at
www.tvrepairworld.com if its not listed they most likely still have it and you can check by hitting the contact us button on their website and letting them know your model number and symptoms and a tech for your model will respond quickly to your problem for free as long as you include your model number and symptoms of the set.

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Lines appear in picture


Sound like a problem with the CCD sensor; this isn't a job that you could solve yourself. Some symptoms of a defective CCD (Charge Coupled Device) include distorted images or abnormal colors, scratchy purple lines, blank or black pictures, and/or black videos with good sound being recorded on the camera's flash card.

When a picture is taken, the CCD is struck by light coming through the camera's lens. Each of the thousands or millions of tiny pixels that make up the CCD convert this light into electrons. The number of electrons, usually described as the pixel's accumulated charge, is measured, then converted to a digital value.

If this defect occurs, the signal is not output from the CCD correctly when in shooting mode, which results in symptoms like the following in captured images. These symptoms can be confirmed on the LCD monitor. The same symptoms may also occur in recorded images.
* images do not appear
* images appear distorted

I suggest check THIS LINK for additional details in this previous solutions for an Defective CCD (Charge Coupled Device) and next contact your Sony service. I strongly suggest (taking into consideration the age of your camera) to evaluate the cost of repair versus the cost of a new camera with similar features, before making a final desicion.

Good luck.

Sep 16, 2011 | Sony Cameras

1 Answer

All of a sudden, my pictures have a pink splotch running vertically across the center of the picture. This is happening more often than not, and I can also see the splotch on the image display when I am...


Some symptoms of a defective CCD include distorted images or abnormal colors, scratchy purple lines, blank or black pictures, and/or black videos with good sound being recorded on the camera's flash card. A problem has been discovered in some of the CCDs used in Panasonic, Fuji, Sony and Canon digital camera and digital video camera products that causes images to appear distorted or not to appear at all. And the says apologize for the considerable inconvenience this represents for your customers. Along with our respectful apology, we would like to advise our customers of the details of this issue and our policy for handling it, which are as follows.

The Malfunction:
Among the CCDs used in the affected products listed above, it has been confirmed that, especially under high-temperature/high-humidity environments, the internal wiring may come undone in some places.

If this defect occurs, the signal is not output from the CCD correctly when in shooting mode, which results in symptoms like the following in captured images. These symptoms can be confirmed on the LCD monitor. The same symptoms may also occur in recorded images:
* images do not appear
* images appear distorted

In order to correct this issue, the repair facility needs to replace the CCD. This is not something you may do on your own; this, isn't a good new, but hope helps to solve it.

Jun 14, 2011 | Panasonic Cameras

1 Answer

TV STAYS ON WITH SOUND AND PICTURE FOR ABOUT 20 SECONDS .THE SOUND AND PICTURE GOES OUT FOR APPROX. MINUTE ,THAN THE SOUND AND PICTURE RETURNS .THIS PROCESS HAPPENS OVER AND OVER


It is symptom of weak lamp that has been reached to end of its working hours life and need to be replaced to solve this problem.
Replace lamp in your tv, procedure is easy and would be written in your tv user manual.
Buy Sony original lamp for good picture in tv.
Thanks.

Nov 21, 2010 | Sony KDF-E60A20 60 in. LCD HDTV

1 Answer

Good picture, no sound


hello, if you have a good picture then your set is serviceble make sure you check all your options and audio set up settings before you go futher, with this symptom your set displaying fine and sound not coming trough it could be a fualty sound board module this board is identified by aquiring a service manual and then using the schematic drawings location the board that controls sound, i would then find this board online at auction or parts site and have it exchanged. hope this helps

Jun 04, 2010 | ESA PDP4294LV1 42 in. EDTV-Ready Plasma TV

1 Answer

My tv screen goes off including sound for about a minute or and then comes back on 10 minutes later it happens again the lamp light does not come on


Hi,
It is symptom of weak lamp in tv.
Please replace lamp, replacement procedure would be written in user manual and its easy. Buy Sony original lamp for good picture in tv.
Let me know if you have additional question.
Thanks.

Apr 22, 2010 | Sony Grand WEGA KF-42SX300 42" LCD TV

2 Answers

Dark Picture


Symptom: NO PICTURE
Cause: DEFECTIVE 3D/YC COMB FILTER
Symptom: DARK PICTURE
Cause: DEFECTIVE 3D/YC COMB FILTER
Symptom: DARK PICTURE
Cause: DEFECTIVE C724

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