Question about Sharp Aquos LC-42D62U 42 in. LCD HDTV
I am having trouble with no sound coming out of the tv. I purchased this tv through shopnbc 2 years ago. What can I do?
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.
Posted on Dec 12, 2008
yes and no. That particular tv you have is done for, but if you just purchased it 6 months ago, you are still within you 1 year warranty with sharp. they will ask you to take it to a authorized service center and you need to follow through with the process. about a week or 2 will pass and the service center will deem the unit unrepairable and sharp will replace it if they cant solve the problem. give em call..good luck 2u
Posted on Feb 19, 2009
SOURCE: LC-37AF3X Sharp Aquos KCD TV
If the TV goes in standby, then it is in protection mode.
Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
Try first leaving the TV power cord unplugged for some times, let say one hour or so.
The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.
1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.
2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.
If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.
If you are in situation 2 , then there is an internal fault.
If under warranty contact the manufacturer ringing the number on the user manual
If you want to repair at your own expenses, just locate any good qualified repairer.
If you want to DIY you find parts here,
All: Appliance parts, electronics parts & more from PartStore.com
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LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |
On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem
On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.
On Rear Projection : check lamp, lamp ballast, power board, and convergence.
On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.
Posted on May 05, 2009
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