Posted: 9/28/2015 6:23:16 PM EDT
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We have an 9 or 10 yr old Hitachi Ultravision 42 tv.
Lately it has taken it upon itself to start turning itself on and off. Sometimes it only does it after being on for several hours, sometimes only after an hour or two. It doesn't do it every time we use it, nor has this occurred when it's just off. The only way to get it out of this cycle is to cut the power to it for awhile. Is it time for a new tv? |
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My Samsung has a similar issue except it will take 2-3 minutes to turn on. Just keeps clicking like it's trying to turn on until it finally does. Works fine otherwise. Found out it was an issue with the older LCD's, they ran a recall but that was years ago. I'm just waiting to replace it now, they are so cheap there's really no value in trying to repair them at 2-300 bucks.
I'd say replace it. I've seen 65 inch TV's at Walmart for under $1000. If I were you I'd just suffer until black friday and get one then. |
| Probably a few bad capacitors on the power board. If you open it up and look at it you'll likely see several of them that are bulged out or swollen up. If you can get the board out and can do basic soldering, or know someone that can, you can probably fix it yourself for a few dollars in parts. If you can't do that, I'd just buy another TV, as paying someone to do it just wouldn't be worth it imo as cheap as TVs are now. |
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you might be able to buy a used powersupply sub board and swap it in search ebay for the model number |
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I've replaced capacitors on several TV's over the last few years. Easy fix. Soldering iron, solder, and a solder sucker. Saves you from buying a new TV.
I'm a big believer in fixing things, instead of throwing it away and buying a new one. It is not a fire hazard. |
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There's no guarantee that it is bad caps, but that's a place to start. Bad caps are likely to have raised or even split tops. They are scored at the top to help prevent in some instances catastrophic failure (explosion). The damage is often easy to spot and identify, but not always. The cap can also look good but have a bad ESR (equivalent series resistance). Failed caps can also leak some somewhat caustic fluid.
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