I have a 32" Samsung Dynaflat HDTV. The picture seemed to drop about 4" so now there is a big black area at the top of the TV. This is the second time it happened. 3 years ago we got it repaired but unless I can do it myself it isn't worth fixing again.
To explain the problem perhaps you can envision the really old TVs. At times the picture would fall and there was a little knob called "vertical hold" that would allow you to move the picture back up. It's the same here except obviously there is no vertical hold button. I have no idea why the picture dropped but as I said the last repair was $400 which isn't even worth the price of the TV anymore.
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Re: Picture has dropped
Hi and welcome to FixYa,
Almost always, your described fault of the TV is the pump capacitor in the vertical section. These capacitors tend to leak due to the heat build-up in that area. Other than that, no other component (to my knowledge) could exhibit the same symptoms. Price wise, component cost should just be a few dollars something making the repair if done by yourself (DIY) worth the effort. This is a relatively easy/quick repair, what would be more challenging is identifying which of the hundreds of capacitor is the one faulty and getting acces underneath the board to perform soldering.
To help you determine which, initially identify which is the vertical section. The vertical IC is often a single in line package with 7 or more pins. This IC would be attached to an aluminum heatsink. It would be very close to a 4 big wires terminal/connector that goes to the yoke. Very very close to the vertical IC would be several capacitors, about 5, certainly not more than 10. Among these capacitors, 1 would be relatively bigger with a value in the neighborhood of 100uF/50V. This is the pump capacitor. Replace it with a similar value readily available from most electronics supply store including Radio Shack. You would need a soldering iron to effect the repairs.
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you wish to get more details, check this link.http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic
/ Time slide, can be selected by the drop-down list, at the top left
of the display window, will make surf easy. You can also do a search, by type in the brand name/model
number/IC used, in the search box at the top right of the display window.
The most i have seen an inverter board go for on a 32 inch tv is about 300$ and that was shipped from japan, not having the actual part number off the board makes it difficult to lookup. I usually charge about 100$ to do this type of replacement. so they do seem a bit overpriced, considering it also may just be a bad capacitor or 2 causing the board to fail, they run about 5$ each. If you have another repair shop in the area i would call them and shop around. If everyone seems to have the same amount of price in mind, it may be just time to get a new tv, with the release of the LED HD tv's the prices for lcd are dropping drasticaly , you should be able to get a much larger one for the same price as you paid for that one .
If the cable was an SVideo, it's possible you might have a broken pin. Losing one of the 4 pins would still give you a picture but it would be in Black and White. Check both ends of the cable and if one is missing, get another SVideo cable.
I believe i have the same problem myself. When my TV is on any of the Component Inputs without my DVD player turned on i usually get the normal green screen. But now that is a dip in the green at the top of the screen from the top left to almost the top right and black pushing down on the dip. Almost like a green curtain was sagging at the top and you can see the black behind it. It does this on every input and distorts every picture you see. The distorted picture has all the green slightly off from where the rest of the picture is and where the dip at the top of the screen is there is somtimes purple instead of black.
I know the basics of how the picture gets onto the screen and its my guess that the Green "gun" for lack of a better term and somhow come loose, or been missaligned to a great extent. I would love to find an answer to this problem, and anyones best guess as to how much a repair man will charge, just so i know the ballpark.
The ticking indicates a feed back on the power supply - most likely the shutdown circuit itself because something up-circuit is shorted. MY first guess would be the HOT (Horizontal Output Transistor) - Second guess the FBT or Flyback Transformer...
I might have the service manual for that, just email me personally and make it clear what you're after. I get nearly 3000 emails a day and I be real lucky to remember what this is all about when I get the mail...
PS Go online and download Pando... It's a free download and the best way to send large and/or multiple large files over the net...
Sharp 42" lcd. TV accessed incorrectly. Resulting in no picture.
Using TV remote, changed from analog 2 to input 4. Turned off TV remote. Returned to satallite remote, turned on TV, turned on satallite, still no picture. We seem to have power but no satallite signal. Ist time users of satallite TV.
Greeeting from Belize you are having a problem either with cold solder or a problem in the power supply those lines are hum bars due to a defected filter cap.resolder your power supply if that does not solve the problem then you replace the power supply you can get a power supply kit from www.dalbani.com in florida.good luck.also make check in the vertical section if you cannot do it your self take it to a qualified tech to resolve your problem this should cost you about $75.00. to get it fix.