Question about Insignia IS-LCDTV32 32 in. Television

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Insignia ns-lcd15 no picture


My model number is ns-lcd15, it is a small 15 inch lcd tv i bought it from best buy, and not 3 months later it quit working. Rather then trying to fix it i just went and bought another tv ( i had money then). However that tv broke as well, so in an effort to swear off tv's ( i was mainly using them as computer monitors, and only rarely actualy watched TV) i went and just bought a dell computer monitor. That works fine. however i recently got an xbox 360, and really have no tv to play it on. i do have a tv in the living room, but i have 4 other people living in my house, and can not really tie that tv up all the time with a video game system. So i am indevoring to try and fix my insignia 15 inch tv.

The problem is this. you plug it in, and under the power button the little light comes on showing power is availible. i push the power button and the tv comes on, however the picture just basicaly blinks and then goes to a black screen. if i have say the xbox hooked up to is, you get the sound as if it was working correctly however no picture. if i put it on say channel 3 you would normally get static, like all tv's do untill a signal is picked up. this is what it did before it broke, however now you get nothing but a black screen. i thought it might be broke to the extent of no repair. however earlier i was messing around with it, and i pick it up and threw it into the air about 6 inches, and when i caught it everything started working. As soon as i set the tv down it stopped working and when to a black screen again. this leads me to believe there is something loose. if this is the case it should be a simple matter of finding the loose component. however im not a tv repair guy. i am pretty handy, and to understand basic principles. i have fixed many of xbox and playstations, dvd playerss, and so on. so i should be able to fix it if it is a possibility. i have taken the tv apart, i know that voids the warrenty however, i will never buy an insignia tv again, because when it broke they blamed it on me and would not honor there warranty. they said it must have been droped or somthing and that it was my fault. the tv has not been dropped or anything, i bought it came home set it up and that is were it stayed since, untill it broke. niether best buy nor insignia would honor a warranty so void of the warranty isnt an issue.

if you could provide me with a place ot get a rapair manual, or some tips to look for or anything i would greatly appretiate it. i hope i can get it fixed because honestly i do not have the money to buy another tv

i appretiate anything you can do
Justin

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This is the best solution for your problem as a 40 year experience with wires etc. Go to the source of your cable signal connector . Open it and clean the terminals with emery paper , sand the end of the cable shiny clean from corrosion , get a new barrel connectors with gold terminals if possible lengthen the ends of the cable , insert and tighten good, use thick rg-16 or rg 40 cable with good insulation ends crimped professionally with a crimpier or buy ready made , not from dollar store. Get a gold plated professional splitter if you need one or two , it will cost about 15 or more each . Make the cable runs as short as possible, using the thick good cables. If needed get a signal magnifier. From radio shack or the source etc. Connect them good and tight . Ground the splitters . Problem solved , you will get crystal clear channel 2 to 7 including 3 and 4 . Isolate the TV cable from other cables and power wires. Vitally

Posted on Apr 15, 2010

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Definitely sounds like a bad power supply. Especially if it's making any buzzing/hissing noises while it's flickering.
All Insignia products carry a two year manufactures warranty, which Best Buy will gladly service for you. If you're out of warranty, here is a link to a replacement part:
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So the big problem these TVs have is that they are built with generally cheap parts. At the same time, the parts have the potential to be reliable, but little things like poor board design or cheap capacitors ruin them.

For this TV, the likely problem is the power board.

The first thing you should try is to be sure that the TV is still working, even though the screen is black. You can do this by hooking it up to something, like a dvd player and check to make sure it still has sound. If it doesn't, it still may not be a big problem, but it has the potential for being more than just the power board.

If it does still have sound, you need to disconnect everything, open up the TV, and remove the power board (the board with the power plug either on it or connected to it). I would suggest investing in a multimeter with which you can test capacitors, fuses, and circuits in general. At that point, you should check the board for obvious signs of issues.

1) One big one would be noticing if any of the capacitors (cylindrical electrolyte caps being the more likely issue) are blown or bulging out at their top or bottom.

2)You can also check the fuse, although be aware that the fuse may be a microfuse that looks nothing like those you may be familiar with.

3) In general look for areas of burns or darkening or damaged looking parts.

I would replace any fuses or capacitors that you need to replace using a soldering iron and good solder. Be careful not to bridge connections with excess solder, and in general stay away from this unless you spend some time getting acquainted with soldering parts onto a circuit board. You may potentially damage the board further if you don't know what you are doing.

Anyways, check if that fixes the problem. Any thing more than that would likely be both too difficult and too costly to repair, unless of course you manage to get a good deal on a power board. At the same time you should know that the power board might not be the only problem.

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If the power board looks fine or is not the only problem, then:

It is possible that the problem you are experiencing is the result of a bad backlight panel. This can be fixed by either replacing the whole LCD panel or simply the backlight panel - for example you could get your hands on a broken LCD of the same size and switch out the panels, but thats a lot of work. I also know that repairing the backlights themselves is possible and there are tutorials online, but its riskier and more difficult.

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