Question about Sharp Aqous LC-26D5U Television

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The Tv wont turn on when plugged in and switched on

The tv is plugged in and switched on at the wall and when the power button on the tv is touched it won't power on.

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  • Contributor
  • 19 Answers

You need a new TV

Posted on Oct 31, 2012

6 Suggested Answers

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Posted on Jan 02, 2017

circuitworld
  • 335 Answers

SOURCE: The power button on my sharp LC32sb24u tv is

is the OPC light blinking also if it is the tv neds to be reset by a certified shop. OPC is an engineering flaw from Sharp and conflicts with other software in the tv.

Posted on Jul 10, 2009

  • 102 Answers

SOURCE: my sharp tv wont stay on, it flashes green

Hi i have seen this before sharp hdtv's are known for having the internal power supply go faulty

Posted on Feb 01, 2010

bbl242003
  • 1637 Answers

SOURCE: I have a sharp Aquos

Do you get any sound at all?
Solution

I had a similar problem. I had a 52" RCArear projection tv. It would do this when I initially turned on the television, but then after a few "on/off, on/off, on/off" cycles it would stay on. Eventually it started doing it more; until finally there was a spark and that was it. The tv was dead.The bloggers called it "the blinking green light of death" (because of green light on the panel).The power board is going out.ALSO holding down the Input and Menu buttons afterward will give you some diagnostic information via 2 sets of blinking indicator lights.

You may very well have issues with capacitors on this set being that it is or very similar to the V26 chassis. Since I have spare test lamps laying around, I would normally try that first. If the lamp still would not stay lit, I would then suspect the electrical chassis (capacitors). When I suspect the chassis, I can usually verify it by pulling it out and partially disassemble it and find blown capacitors

Posted on Jan 12, 2011

ladywinn
  • 5138 Answers

SOURCE: My tv won't turn on, it will if i hold in the

Bad capacitors on power supply board they will be vented or swollen on Top. 1000uf 2200uf 10v 3300uf 10v

Posted on May 31, 2011

ronaldo_ross
  • 1056 Answers

SOURCE: TV wont turn on. No sound or backlight. The OPC

There is a problem with the standby section of the power supply. A flashing standby light indicate an overload which is caused by a shorted semiconductor in that circuit. It's fairly simple for a technician and should not cost much. You can't do that yourself it is electronic takes a long time to grasp.

Posted on Jun 04, 2011

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1 Answer

My tv won't switch on?


Sometimes this procedure will get an electronic device to turn back on. First check that your power cable is seated in the back - remove it and plug it back in if you can just to be sure. Then unplug the power cord from the wall. Press and hold the power button on the TV (don't use the remote) for 15 seconds. Plug it back in and try turning on the TV using the power button (not the remote).

If that doesn't work - try leaving the TV unplugged for an hour or so then plug it back in and try it again.

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Well, there could a be few issues. First thing is to verify the breaker that gives power to that wall has not tripped off in the home's break power panel. If it is not tripped then verify the wall outlet that the TV is plugged into has a reset button, like a GFI (ground fault interrupt) If it does then verify that it has not tripped. If the GFI on the wall plug is tripped simply push the reset button back in and then try plugging in your TV power plug again. Then if that checks out or does not have a GFI outlet, verify that the power plug going into the back of the TV is not loose. Unplug and replug power plug that plugs into the back of the TV in and verify it is securely connected. Lastly, the power supply in the TV might have gone out.

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Could be a number of things but I would first suggest that you check the plug (from the TV) for wires touching inside ie: neutral and/or earth touching the phase terminal and/or damaged cable.

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Please check if the power cord is connected properly in the wall outlet and in the TV. Check the wall outlet. Has it got power? Check if there is red light when the power is switched on at the wall outlet. If there is red light then press the power button. Does the TV turn on? If not then your power button is defective and requires replacement as it is not making contact. Also please try to start your TV WITH THE REMOTE CONTROL. At times it helps.

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most problems like you descripe are the power button on the tv is switched off, or the power cable is not getting connection from the mains, make sure the cable is tight to the TV and the wall.
If that dosent work then there is a possibility that you need to get an expert to open your TV.

Jan 02, 2011 | Televison & Video

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2 Answers

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Instead of just unplugging the TV, perform a power drain:
1. Unplug the product's power cable so the device is not grounded to the house. 2. Press and HOLD the product's own power button for 1 minute to drain the capacitors. 3. Plug the product back into a wall outlet and try to turn it on.
Note: This procedure works with battery operated devices as well so remove the batteries and hold down it's power button.  Electricity can remain in capacitors and on circuit boards enough to prevent normal functionality. By clearing the residue electricity, your product will have a fresh start and many times this will resolve a buggy or non-responsive device that appears to be dead.
If the TV still won't turn on, then it appears something is wrong with it's mainboard since the TV is still receiving power because the standby light is still coming on.  The cost of fixing an older TV's mainboard could be costly or impossible if the part is discontinued.

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I had the same problem and took it apart. Before the repair there was no "click" when I pushed the button, a clue to the problem. The on-off button on the front pushes a weakly made angle piece of plastic inside which had broken. The plastic piece in turn is supposed to push an internal switch which is offset to one side.

I used epoxy (Araldite) to repair the broken plastic angle piece, but it still looks weak to me so I switch the tv off at the wall and leave the on-off button alone (though it does work now).

Opening the case requires some knowledge and care, and can be dangerous. It may void the warranty so be careful or give it to a qualified repair person.

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