Question about Sharp Aquos LC-42D62U 42 in. LCD HDTV
My tv is just keeps shutting off on it's own. the power and opc button is blinking. i can't get the tv to stay own. what is the problem?
I too had this problem and, like nater77's posting from Feb 24, it took three new boards (and three trips and six weeks) to get my 46"" Aquos running again. Luckily it was only two months old and under warranty. Wish my pre-purchase research had shown this problem - I sure wouldn't be a Sharp owner now.
Posted on Mar 08, 2008
I contacted Sharp support and told that Power light blinks green twice per second. Immediately, the support person said he needs to order new Power supply which takes about 3 to 4 days. Couple of days later, Sharp support contractor replaced my TV's Power supply and it is now working fine.
Posted on May 08, 2008
I too had the same problem, however, if you have a bad HDMI cable, it will trip the TV into safe mode (blinking power and opc lights). Try switching out the cable or cables before going the service route.
Posted on Mar 31, 2008
My problem was not overheating, it was a circuit board issue. They replaced both main circuit boards and the problem was fixed.
Posted on Mar 28, 2008
SOURCE: Tv keeps shutting off and
I had the same problem with my Phillips 42 in. LCD HD TV.
Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.
Hope this helps
Posted on Dec 09, 2010
Make sure the AC cord is not loose or disconnected. Check to ensure the cord is firmly plugged into the outlet at one end, and firmly connected to your television at the other end. The AC cord connects to the television about midway across the back of the set, near the bottom of the back panel. The hole for the AC connection is shaped like a figure eight. Try powering up the TV with the cords firmly connected.
Check the "Main Power" to ensure it is on. Locate the button on the top of the television among the "Volume" and "Channel" buttons. Press the button to switch the television on. If the "Main Power" button is off the remote will not turn on the television. Wait to see if pressing "Main Power" will activate the TV.
Press "TV Power" on the remote control to power up the TV from stand-by mode. If the power light on the front of the television glows red when you press "TV Power" on the remote, press the "Main Power" button on top of the television to remove the TV from stand-by. If the TV is accidentally in stand-by mode it may not come on when pressing certain buttons.
Check the circuit board. If your set still won't turn on and you hear a clicking noise when you plug it in, you most likely have a defective circuit board.
Posted on Oct 23, 2010
I've read online that upgrading to the latest firmware sometimes resolves this issue. That's kind of shooting in the dark though - I personally would not feel completely confident that a FW flash would actually resolve the issue (as it could still be lurking beneath somewhere, waiting to surface again). If you have no warranty, then the FW flash is not a bad option. It's relatively easy and virtually impossible to screw up!
If you're still under warranty, then I imagine you've figured out by now that you'll need to contact Sharp to fix this issue. Mine was luckily under the extended (15-month) factory warranty when this first happened to me. I was 13+ months out from date of purchase. Sharp support confirmed a tech needed to come out for an all-day appointment to troubleshoot the TV. Thank goodness for the extra 3 month warranty I got when signing up for the Aquos Advantage club! Otherwise, my $3400 investment might have cost me at least $700-$800 to fix - only a year out from purchase!
Posted on Dec 27, 2009
SOURCE: There are two green lights
The tv main logic board known as a tv Tuner signal board it is the causes and the problems.The tv main logic board,the tv Tuner signal board it is shorted and not taking in and sustance power from the tv power supply board anymore that why tv Power and OPC LED lights indication are flashing together.This main logic tv Tuner signal board that the board where that take in the tv incomming broadcasting signal wire plug into it.U must replaced the main logic tv Tuner signal bard to fixed this problems.If U have some mechanicals skills like take things aparts and putting it back together again?Yes,tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish main logic tv Tuner signal board for the replacement.Tries tv unplug,replug it back about an hour later.Tv might work again for awhile though,but to fixed this problems for good the main logic tv Tuner signal board must have to be replace.
Posted on Aug 22, 2011
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