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Am I being overly suspicious? |
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#1 |
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Forum Member
Join Date: Nov 2006
Posts: 2,287
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Am I being overly suspicious?
A few months ago my LG 37 started displaying flashing vertical lines rising from the bottom of the screen which, as I described in DS at the time, resembled a multi coloured Bar Code
. A couple of weeks ago, because the fault had started to get worse, I decided have it repaired (if possible). I went on to the internet and Googled LG television repairs (in my area). I found a website in which I had to type in my address, phone number, email addres and a description of the fault in the company's onscreen form. In my description of the fault, I said how the set worked fine for the first 15 minutes after the initial switch on, then the fault began to occur, getting progressively worse for about 10 to 15 minutes, after which the tv settled down and gave no further trouble for the rest of the day. Then I submitted the e-form. A couple of days later, after paying a £70 fee the set was taken for inspection. Cutting a long story short, I was eventually told the power supply and main board were in need of replacing. I didn't feel comfortable about certain things so decided not to have the repair done. When the set was eventually returned. I plugged it into the mains, switched on and - nothing, no indicator light, nothing. Maybe I'm being cycnical, but I can't help wondering if the diagnosis which said the power supply and main board were in need of replacing was a scam to inflate the repair charge, and, when I asked for the set to be returned, was a perfectly good power supply and main board substituted for deffective versions in order to make the diagnosis look correct. I say this because, even though the tv did have a fault when it was taken, it could, at least be switched on, but not now. |
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#2 |
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Forum Member
Join Date: Jun 2003
Location: Cheshire
Posts: 6,462
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Replacing the power supply and main board isn't a two minute job. So installing a broken one isn't something a repair company would do just for the hell of it. The other thing with LG power supplies is that they can cause cascade failures. So replacing the PSU might not fix the problem, and the component failures further down the chain can kill a new power supply.
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#3 |
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Forum Member
Join Date: Apr 2006
Location: North Derbyshire
Posts: 41,794
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Quote:
Replacing the power supply and main board isn't a two minute job.
![]() It's certainly trivial - but what is more likely is that they have left the boards unplugged inside, probably deliberately, to help prevent any further damage. As you suggested, it's 'possible' that the PSU is faulty, and this has caused damage to the main board - leaving it connected could make it worse. |
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#4 |
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Forum Member
Join Date: Jun 2002
Location: bognor regis
Posts: 620
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Not worth getting tvs fixed these days, it's not like the old days where aguy comes and changes a few components. There's 3 parts...screen, power supply and motherboard, all are expensive to replace, always cut your losses and buy a new tv.
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#5 |
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Forum Member
Join Date: Jun 2003
Location: Cheshire
Posts: 6,462
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Quote:
Not worth getting tvs fixed these days, it's not like the old days where aguy comes and changes a few components. There's 3 parts...screen, power supply and motherboard, all are expensive to replace, always cut your losses and buy a new tv.
a) Capacitor faults - They're a common issue, and particularly so on the volume brands. The cost for a DIY fix is pennies. b) Screen driver faults - X-SuS Y-Sus boards. One of the more common problems after bad capacitors. Not as simple a fix as caps, but still relatively achievable for reasonable cost. c) There's more to the circuitry than just the motherboard and PSU. Where I can agree is when it comes to the major cost item; the screen. A TV can still be salvaged but parts bill alone versus the fall in price of new sets often makes this uneconomical via official repair channels. It's a shame the reliability rates aren't weighted to customer experience. It's a strange quirk of statistics. Two products can have the same reliability rate. But if one buys the vastly more popular product, then the number of people likely to experience a failure grows relative to the total group of TV owners. This is one reason why we see so many complaints from Samsung, LG and supermarket brand TV owners. |
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