Tip & How-To about Televison & Video
Many newer TVs had bad capacitors installed in them from the factory. The most common symptom of this is the never ending "click" noise. Sometimes it starts out taking a few clicks to come on, and eventually clicks forever. Other symptoms can range from a completely "dead" set to different problems like video or sound issues. When a voltage drops a little low, it can cause issues that look like something else, when in fact it can be in the power supply. These capacitors are solder in and can be found easily.
Open up the TV
Look for bad capacitors on the power supply
BULGED CAP - This is a bad cap. A good one is flat on the top
Write down the values of the caps - purchase the new caps with same or larger voltage values from an online distributor. The values will be something like 1000uF @ 16 volt, and if you search this on the internet, you will find them for very cheap and readily available. This type of capacitor is an "electrolytic" and make sure to go for the 105 degree version so it can handle a lot of heat and won't fail again.
Solder in the new caps, and you're done! When you replace them, make sure you get the line on the same side as before as they are "polarized" and won't work (might even blow out) if you put them in backwards.
- If you've never soldering practice, but a kit at radio shack or online and get some experience. Make sure you have a nice hot iron with some substantial wattage (i bought a 15 watt once and it worked horribly, go for 40w or something) and get some solder "wick" or a desoldering pump tot help you unsolder the old ones. You can also heat up the connections and just pull them out if you're in a pinch :) .. Look up Youtube videos to see how its done if you need a little help, soldering can be easy once you get the hang of it, but it can be difficult if you don't get good heat transfer.
Posted by thielectro... on
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