Sounds like a bad backlight or inverter board!
SOURCE: Cracked LCD Screen on Sharp Aquos LC37D43U 37-Inch 720p LCD HDTV
Most LCD's just went down in price by around 2-400 dollars. I would suggest buying a new one. The cracked screen might mean that the liquid will ooze out and get worse and worse as it ages. However, it may only have a crack and not get any worse than it is now. If you can live with it and it doesn't get worse, you can view it that way for another 10 years and be fine.
The fact that the LCDs are cheaper now and you only have a 37 inch, you might consider getting a larger one that you have had your eye on for a long time. (Note: even though I am a firm believer in LCD's over Plasma, plasmas are a few hundered dollars cheaper and if you know your children are prone to breaking things... it might be the way to go.)
Replacing the screen is possible, but more costly than the new T.V.
SOURCE: 37 inch LG LCD won't turn on due to power failure
Power failures can cause all types of problems, have you firstly checked the fuse in the mains plug? If that is ok then it may have blown an internal fuse in the power supply board, these are there to protect the rest of the circuit from power surges.
SOURCE: Hi, I have a Philips model 37PF7321d/37, 37 inch
The power board numbers you need to search for on eBay is 310432847531 or 310432838621 - they are compatible according to Philips.
SOURCE: black shadow on screen vizio 37 in lcd hdtv
There is a part inside
the TV that needs to be replaced. If the TV is under warranty—whether
the original warranty from the manufacture or an extended warranty
purchased with the TV—call the company providing the warranty
coverage and they will arrange to have your TV repaired at little, or
no cost to you.
Since some brands will
pay for your repair even if you're out of warranty, especially if
they've heard of your problem before and it's a known issue. You
should always contact the manufacture first for your full range of
options. If they're willing to fix the TV for free, or at a reduced
cost to you, let them!
If the TV is out of
warranty, and you have the experience and you know what you're doing,
you can fix the TV yourself. Purchase the service manual from the
manufacture to get started. However, if you've never done anything
like this type of repair before and you don't know where to start, I
suggest speaking with an experienced TV repair-person.
If you decide to pay for
out of warranty repair by a professional repair shop, the total cost
will likely be a minimum of $200 parts and labor. However, be warned
that the cost could be considerably higher.
I hope I've provided you
useful assistance and that this information allows you to make an
informed decision as to how to proceed from here. Please be sure to
vote on my response. I hope I've earned a good rating from you today!
Please post a
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Testimonial: "it was helpful thank you do you happen to know what this part is?"
SOURCE: Sanyo TV LCD 32 inch about 3 years old. No
the power supply of your tv is bad try to check the fuses if fuse are open try to replace them with the same value..try to power it on but if the fuse blows again replace the power supply board...
good luck plse rate my help.
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