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Fixing broken lcd TV myself?
Jebus314
Registered User regular
Registered User regular
So my LG lcd tv has started to lose it's shit. Basically menus are popping up and disappearing randomly and nauseatingly quickly. It's basically like shitty or rather super obvious subliminal messaging of the menus. I've removed all remote batteries to verify that it's the TV and not the remote flipping out. It's a 4ish year old lcd (37LG50 is the model number) so warranty is straight out and anything over $100 dollars is not going to be worth it to save this bad boy. That being said I'd really rather not drop another several hundred right now to have to replace it, especially since I will almost certainly overspend to get something significantly better. So basically I'm wondering if this is worth saving, and if anyone has any ideas about how I could go about saving this.
LG basically told me they can't help and referred me to a local tv repair shop. The local TV shop basically says it will be $60 to diagnose it, and if I decide to repair it that will go towards the repair cost. I'm concerned that no matter how much the parts might cost, labor is going to easy push it over $100 total and make it not worth it. Which means I would essentially be out $60 dollars for them to tell me it's not worth it. Although they apparently will recycle it for you which I have no idea how much that would cost me.
Google, with my limited googling skills, tells me that it could be the main board, which is around $70 or so and looks to be pretty easy to replace myself. However I'd rather not risk breaking anything further until I'm sure I wont find anyone to repair this for decently cheap. Also I'd rather not spend $70 to find out it wasn't the main board and now I'm out $70 for nothing.
tl;dr: My tv broke. I need someone to tell me it's not worth repairing and I should totes buy that sweet Sammy I've been eyeing at best buy.
LG basically told me they can't help and referred me to a local tv repair shop. The local TV shop basically says it will be $60 to diagnose it, and if I decide to repair it that will go towards the repair cost. I'm concerned that no matter how much the parts might cost, labor is going to easy push it over $100 total and make it not worth it. Which means I would essentially be out $60 dollars for them to tell me it's not worth it. Although they apparently will recycle it for you which I have no idea how much that would cost me.
Google, with my limited googling skills, tells me that it could be the main board, which is around $70 or so and looks to be pretty easy to replace myself. However I'd rather not risk breaking anything further until I'm sure I wont find anyone to repair this for decently cheap. Also I'd rather not spend $70 to find out it wasn't the main board and now I'm out $70 for nothing.
tl;dr: My tv broke. I need someone to tell me it's not worth repairing and I should totes buy that sweet Sammy I've been eyeing at best buy.
"The world is a mess, and I just need to rule it" - Dr Horrible
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You could maybe took a look at the main board and see if you notice any blown capacitors, as that's most likely what has gone wrong. But even if you do see some, and then either replace the caps (fi you have some soldering skill), or the entire mainboard. There is no guarantee that was the only problem.
So your comparing a $100(if you can do the work yourself)-$300 repair vs. a brand new similar spec'd and sized tv for $300-350.
Also, depending on your state you can probably recycle it for cheap if free if you haul it to the right place.
fuck up once and you break your thumb / if you're happy at all then you're god damn dumb
that's right we're on a fucked up cruise / God is dead but at least we have booze
bad things happen, no one knows why / the sun burns out and everyone dies
that's why we call it the struggle, you're supposed to sweat
You should be able to "fix" it as long as its a standard build, whip the back off. Find the buttons they should be mounted on their own PCB. They should have a lead going to the much larger main PCB (computer board). If you can unplug it and confirm that your TV is no longer going nuts?
Either find a replacement board or leave it unplugged (If the IR receiver is on the same PCB things are a little more tricky. You have to trace back the IR sensors tracks and cut all but those.)
This totally worked, thanks a bunch! I couldn't seem to get the pcb board for the buttons off to try and replace it, but honestly I never use the buttons anyway so I just disconnected it and left it. Now I can save up and buy a better TV on black friday and relegate this one to the spare room or something. Thanks again.
While we have you here, I'd like your input. Did you have to do a lot of repair on Samsungs or Sharps or are they pretty solid? I have a samsung but im thinking up upgrading, and I'm trying to decide between the two brands.
Samsungs used to suffer from bad capacitors in the Power PCB, but any monkey with a soldering iron could fix them. Keep it cool and you'll be ok. They make nice screens though. Avoid samsung DVD/Homecinema/Blueray players like the plague though! I used to have a huge list of people I'd visit twice a year to replace the optics. So much so we kept stacks of spares in the workshop.
Sharps were a pig to repair/get parts for when they went wrong but had no real reoccurring issue.
Hope that helps.