Question about Sylvania Flat Panel Televisions

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6632lg hdtv won't turn on

Turned off power strip to go on vacation for a week. Came back and TV won't turn on even after the 30 minute "reset" time. Other components turn on from the power strip but not the TV. I don't even have a standby light. None of the clocks in the house were flashing when we got back so there was no power interruption to the house.

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  • jonesgang06 Jul 02, 2008

    I don't know how helpful yet as I haven't taken the back off the set yet.

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No stanby LED would indicate a power supply problem. check the main fuse and the 4 large diodes next to the fuse. one is common to short out and blow the fuse. i think D603

Hope this helps

Posted on Jul 20, 2009

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Unit does have a main power fuse on the power supply bd. that most likely opened. With no indicator lights at all that is usually all I find wrong. Might be as bad as a failed power supply but most likely just and open fuse.

Posted on Jun 29, 2008

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NO POWER


Need to know how many times the led is blinking.

Try this link for more informationmessage_type_solution.png

Re: tv kdl-55ex620 red light blink 8 times Do a Power Reset. 1. While the TV is off, unplug the power cord of the TV from the electrical outlet. 2. Let the TV remain without power for 60 seconds. 3. Plug the power cord back into the electrical outlet. (If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.) 4. Turn on the TV. 5. When the TV powers on and a picture is displayed, reset the TV to factory default settings.
  • If the Reset message does not appear and the TV turns off and on, begin again from step 5.
  • If the standby light begins blinking eight times, return to step 1.
6. After the Reset message appears, allow the TV to reset. Do not press any buttons on the remote control or on the TV and do not make any other adjustments for 1 minute. 7. Unplug the power cord from the electrical outlet. 8. Allow the TV to remain without power for 10 seconds. 9. Plug the power cord back into the electrical outlet. 10. Turn on the TV.
  • The initial setup screen displays if the above procedures were performed correctly.
11. Follow the on-screen instructions to complete the initial set up. 12. Perform a system software (firmware) update.

Sep 04, 2012 | Sony KDL55EX620 55 inch BRAVIA 1080p LED...

1 Answer

My magnavox hdtv won't turn on no green or red light on the power butten no power at all


Start with the obvious. Is your TV plugged in? If it is on a power strip, does the strip need reset? If all is normal there, then unplug the set and take the back off. Check your fuse to see if it is blown.

May 17, 2012 | Flat Panel Televisions

1 Answer

Had electrical storm last night. Tv shows the Westinghouse symbol, nothing else. This is when it is turned off. When you turn it on (from the tv, remote won't work at all), symbol disappears for 30...


If your TV has a reset switch on the back, use it. If not, Unplug the TV, hold the power button down for 30 seconds, let it go and remain unplugged for another 5 minutes or so.
Plug it back in, and see what happens. Try changing the inputs/channels/etc to see what happens. If you're still having this issue, Take your TV in for repair.

- Sidenote, a $25 power bar with built in protection curcuits are the easiest way to protect your equipment from this kind of thing, and quite a bit cheaper than forking over $300 for a new TV everytime there's thinder and lighting.

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1 Answer

Hello. I got a Lg tv which i brought 3 years ago. After putting it on standby usually the red light falshes 3 times until it turns blue and comes on. since last week the red botton just flashes...


First disconnect all power to the TV for about 30 minutes this gives the filter caps time to discharge as this resets the logic section upon power-up. After 30 min try powering back up if you still have the same problem then there's a problem with the power supply board. You may have some caps with high ESR levels which can cause this kind of fault. But it could other components on the power board causing a similar fault like switching transformers that have shorted, or opened either which can cause EDDY Currents which will cause feedback in opto-couplers and shut the TV down. Let me know what results you get after the 30 minute power-down.

Oct 18, 2010 | LG 37LG30 37 in. LCD HDTV

1 Answer

My tv does not power on and I also have checked the remote/batteries and tried unplugging and plug back in and it still does not work. It is a Sylvania 32inch lcd tv #6632LG


When you press the power button do any front panel lights come on? If so, turn out all lights and then turn on the tv. See if you can barely see a picture or any light in the background. LCD tv's work about the same as conventional flourescent lighting. Each light has a ballast (transformer) and when it completely charges up you have light. When the transformer starts to go bad you get flickering of the light or no light. On LCD tv's you can find capacitors on the power supply that when they charge up the back lights power on which shows the picture. If the capacitors are too weak or shot then the back lights do not come on leaving the screen dark. If this is your problem take it to a repair shop or have a technician come to your house and fix it. Hopefully this is all it is. You can also try to hold your power button in for about five to 15 seconds to see if the tv resets. How old is the tv?

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3 Answers

My 42HDS69 Hitachi has a recurring problem of not turning on. I unplug from outlet for awhile and sometimes it will turn after I plug in outlet, Other times it takes a few hours for TV to turn back on. ...


MY TV KEPT GETTING WORSE EACH DAY ALSO. BUY A CAN OF SPRAY AIR WITH THE EXTENSION SPRAY TUBE. WHEN YOU GET THE TV RUNNING SPRAY THROUGH THE HOLES IN THE BACK RIGHT ONTO THE FAN BLADES OF BOTH FANS. THE DUST WILL FLY OFF THE BLADES. A VACUMM HOSE WILL HELP PULL OUT THE DUST. ALSO SRAY THE POWER SUPPLY BOARD FOR DUST. I APPEARS THE FANS SLOW DOWN WITH DIRT ON THEM AND THE EXTRA HEAT BUILD UP JUST AFTER THE TV IS SHUT DOWN IS CAUSING THE POWER SUPPLY TO BE IN A SHUT DOWN MODE WHEN POWERED UP THE NEXT TIME. BEEN TWO WEEKS NOW AND WORKS PERFECTLY NOW AGAIN.

Dec 17, 2009 | Hitachi 42HDS69 42 in. Plasma Television

1 Answer

Sylvania 6632LG won't turn on.


The power supply may have gone out, that is the first place to look, look for blown fuse, burnt parts, bad capacitors.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

Nov 13, 2009 | Sylvania 6632LG 32 in. LCD HDTV

2 Answers

Green Screen


Turn Tv off by power point unplug even for 30 or 45 minutes then turn back on. that way the tv has time to reset back to normal

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2 Answers

TV does not not turn on


These flat panel tv's all have a problem with bad leaky capacitors. look for any capacitors ( round cylinder shape with a metal top) that have the top rounded over (bulged up) that part would be bad.

Jan 02, 2008 | Sylvania 6632LG 32 in. LCD HDTV

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