This sound like the power supply board is failing. The electrolytic capacitors on the board may need to be replaced.
\015\012IF YOU KNOW HOW TO WORK WITH ELECTRONICS REPAIR(soldering )
or have a friend with knowledge/skill you can fix it.
\015\012>Remove the back cover.
\015\012>look at the capacitors
on the power supply board. If the top
of any of them are bulging
up that is the problem.
\015\012>You will have to replace ALL
the electrolytic capacitors except for the large one.
> Use ones with the same farad
\015\012> Use ones with the same or higher
> Use high temperature
> Install one at a time to prevent mixup and keep the polarity correct.
\015\012> Leave a space between the PC board and the bottom of the capacitors for expansion. They heat up.
THIS IS AN INDUSTRY WIDE PROBLEM AFFECTING MANY COMPANIES AND PRODUCTS.
\015\012One source for some good capacitors is NTE. Try nteinc.com for a local outlet.
You can also search for other sources. Some companies even sell pre package kits of capacitors.
\015\012Total price of parts should be \015\012
Suggested Questions/Answers :
It is recommended you read all this kind of situations
TV power wont turn on. At first I would turn it on and I would get the light to come on but no picture, just sound. So I would turn it off then back on again and it would work fine. Now I am not getting any power what so ever.
This sound like the power supply board is failing. The electrolytic capacitors on the board may need to be replaced.\015\012IF YOU KNOW HOW TO WORK WITH ELECTRONICS REPAIR(soldering ) or have a friend with knowledge/skill you can fix it ...
Polaroid FLM-2625 26 in. HD-Ready LCD Television
I have an AOC LCD tv when I hit the power button the light turns blue and then right back to orange, at first it would eventually come on after pressing the power button several dozen times and work fine until it was turned off, now it just goes from orange to blue and back to orange or the light goes out completely. I saw a video that said when it does that it could be the power supply or the main av board, what do you think?
Hi there , sound like it may need output caps replaced in the power supply . ...
AOC L26W861 26 in. LCD TV
TX-p42GT50B I bought this TV just last week and after working fine for about 5 days. I went to turn the TV on to play some xbox 360 this sunday evening and all of a sudden I heard several crackling pop sounds. I jumped in shock and the TV started power cycling on and of and would not get past the smart viera logo before turning back off then on again.
Most of the time the TV power cycles as soon as you turn it on. When it does come on, I am unable to change channel, change to the av/hdmi s
Panasonic Viera TH-42PZ80U Plasma TV
My hisense 32 in hdtv iv had for almost a year has worked totally fine, than today we moved it to a diffrent spot in the room turned it and cable box on for bout 15 mins and come back in room after wiping it down with a paper towl with windex sparayed on towl and it is off and will not turn on or no lights nothing or remote tried fuses n plugs everything on cable box works just not the tv no power. Is there anything I can try or see to do why would out of no where it just die like this! Makes no
Check to see no master power button on rear, other than the cord not being in all the way the set would have to be opened to see if a bad fuse or not...... ...
Flat Panel Televisions
This t.v. was working fine until today i turned it off for 15 minutes then it wouldn't turn back on at all.There is no sign of power what so ever!
Power supply has died. But I will need the model number of the set to assist further because some models actually get the power on command from the main board ...
Flat Panel Televisions
Lg 42lh30 Tv runs well for awhile 20 minutes to an hour, then a click sound comes out of just the right speaker. Then the TV freezes and none of the buttons work on the TV. Once I cycle the main power switch the tv will not turn back on, thought a red light shows that power is available. I did some minor troubleshooting and found when I disconnect the T-Con from the main board, I do not ever get the clicking sound, my buttons always remain functional, and the TV seems to run fine (I can hear the
As per your detailed description, the fault should be of its T'Con itself. Replace it. There is no adjustments to be done after T'Con replacement. If you wish to get more details about how to replace T'Con board to an LCD TV, check the site linked ...
Flat Panel Televisions
My Philips 32PFL5604H TV has had a sound problem for a while. It originally occurred when I the TV was turned off for less than an hour then turned back on the sound would not work. If left for over an hour and then turned back on it would work fine. The problem seems to be happening more frequently now and rarely does the sound come back on. Can it be fixed or is it time for the bin.
Flat Panel Televisions
Sanyo dp50747 TV turned itself on and will not turn on. The green power light located on the front panel lights up and the side panel off/on works but no sound or picture is shown. The front panel green light stays lit. The TV did this again about one month ago but I just turned it back on. Yesterday, it turned itself on and now does not turn on with the sound or picture shown. There is no sounds or odors from the TV. The power outlet works fine and the TV appears to be getting some power
Sounds like a mainboard problem ...
Sanyo DP50747 50 in. Plasma TV
Our humax pvr-9300t keeps cutting out every few minutes & turning itself back on. We did have a power cut last night for a couple of hours but it was working fine this morning. Would be grateful if you had any suggestions, many thanks.
Our Protron PLTV 3250 (32 inch) was working fine when we turned it off off yesterday and would not come back on. Unplugged, tv, statelittle connections, reset power, etc. Any suggestions? Do we need to download a HDTV upgrade? Please help!
Hello\015\012\015\012You have done all thigs except software upgrade. Do that. That is the only way before you. OK. ...
Protron PLTV-32 Television
My name is Anali and I recently purchased a Westinghouse TV from Target.
I had it plugged into the wall and working one evening. The next day when I went to turn it on again the red button would turn on but the screen would not.
I unplugged it for the day, moved it to a different wall socket, and it worked.
Next day I turned I tried to turn it back on again, to it doing the red light when I hit power, but a black screen.
Hi Anali. That sounds like the powersupply is bad. The tv has a one year manufactuers warranty. Take it back to Target and exchange for another one. Hope this helps. ...
Flat Panel Televisions
My apex 3230 tv wont turn on, i stored it a few monthsago when i got a new one,and it was running fine, i was giving it to a friend so before i did, i made sure it worked (just for some reason) and it didnt turn on. i read onlinea little about it and it seems that its usually a fuse, where is the "power" fuse? or is it just a general fuse that runs more than the power? and how much would this fuse cost, where would i get it? (radio shack?) and is it easy to fix if i did it myself ?
thanks a bun
Apex Digital PF3230 32" TV
Sorry that I have not gotten back sooner, have been out of town. Tried your solution worked for one day. Now what happens we have to turn off the power for 10 minutes then turn back on. Sometimes it works for 2-3 days then does the same thing. TV makes a crackle noise, fan goes off, then the tv goes off. Now it will not stay on for more than 2 minutes. Any other suggestions would be appreciated.
I'm sorry to tell you this, but I believe you will need to contact a repair shop. Is the TV still under warranty? Either way, contact Panasonic and select an authorized repair shop. 1-800-211-PANA ...
Panasonic PT-56LCZ70 56" HDTV
My Viewsonic N3752w is not working. First it would not turn off - all of the buttons on the TV, including the power button, would just bring up the start menu. I unplugged the TV, and now it will not turn back on. The red light is lit - indicating power. Any idea what it could be, or what I should try? Thanks!
ViewSonic N3752w 37 in. LCD TV
LC320ss8 shut down
Red led lit - turn on - green led flashes 2 times -
goes back to red led -
power company had been working in area and power would ramdomly go out. At first would power up after unplugging and pluging in.
no obvious burnt parts no caps appear to be bulging or leaking really need info on where to check for what voltages. schematic would be even better
Sylvania LC320SS8 32 in. LCD Television
I have a LC-60LE64OU LED TV - connected it and programmed the Direct TV remote to turn off the TV. Everything seems to work fine until you turn off the TV. The Direct TV receiver resets every time that the TV is turned off (the Direct TV receiver shuts off as well). Even if I use the TV remote and only power off the TV, the Direct TV receiver powers off and then resets when I turn the TV back on (meaning that it takes at least 10 minutes to cycle through every time the TV is turned on). Plea
Sharp LC-60LE640U Aquos 60" Class 1080p Edge-Lit LED HDTV with 120Hz,
Panasonic PT-47WX53 47 in. Rear Projection HDTV Television and the power will not turn on it just worked last night. I left it unplugged for an hour and tried to turn it back on and it stayed on for a minut and then turned off and the power light blinks several times like a code or something. Is this tv saveable i don't mind trying to fix it because it has been a great tv but just don't went to spend a lot on a old tv. Any help would be appreciated, thanks
Panasonic PT-47WX53 47" Rear Projection HDTV
Hi im working on an insignia ns-pdp50hd-09 when i hit the power button or use the remote to turn the tv on the indicator led turns blue and everything shuts down not alloing to be turned back off or anything. i had been told this was a power control board issue, i took it to be tested and repaired and it is fine. any other ideas?
Flat Panel Televisions
TV was working fine. Shut it off, all power went, no red light or any other sign of power. Will not turn back on, as if no power source. Unplugged for 1 hour, plugged back in again, nothing, uplugged over night, plugged it in, still nothing. Tried other outlets. Checked the safety fuse, it is good. This TV is not over used (2 adults), TV is 2 years old.
Hello,ok you have done almost everything you can do with a no power on Tv problem, if you have the tech background you could try using a volt meter to see if the TVs power supply is getting the power it needs or if there is a lose wire on the p ...
Element Electronics FLX3711B 37 in. LCD TV
The audio and picture on my vizio vt470m are scrambling and then the whole tv locks up and turns itself off. tried fixing with the "unplug everything, hold power button for 30 sec, and turn back on fix" that the vizio customer service people suggested but that is no longer working. this problem first appeared about two months ago and was fine until a few days ago. now the tv is turning istelf off and back on and there is no picture or sound. what do i need to do to fix it? or should i just
You could have Bad Capacitors on the Power supply board they will be vented or swollow on Top\0121000uf 16v 2200uf 10v 3300uf 10v.\012PTS they rebuilt boards 1-800-844-7871 ...
Vizio VT470M 47 in. TV
No power. Electricity has gone off several times this winter. Power went off Firday due to high winds. WHen I came home, tv would not come on. Was plugged into a surge protector with Bose stereo and Dish Network. They both work but not the TV. I turned off the surge protector and turned in back on, and the green light on front of tv flickers for a couple of minutes but then goes out and still no power to the tv. Any ideas
Is sounds like the power supply has been spiked by high voltage from the power reset it may be possible to fix by replacing the power supply if you have some electronics skills such as soldering and reading wiring digrams ...
Mitsubishi WT-46809 46" Rear Projection Television
The picture will come on when you first turn it on but after 15 minutes or so it fades away. The sound still comes out but no picture. Sometimes it will come back on on its own after a while and then go out again. If you turn it back off for 15 minutes or so it usually comes back on. We already bought a new tv and that one works fine so its not the cable box but I would like to put the old tv in my room.
Sharp 32L-S400 32" TV
I have a 50ml6200 magnavox. I have changed the bulb twice and tv had worked fine. Recently had our floors done and had to move tv out to shed for a couple of days. Brought tv in worked fine. Needed to move back to tv stand and when we turned on there was blue halos around everything. Now the picture is almost completely blue with only tints if rd and green. Please any advice would be great.
The tv got dust when placed out say u need to clean the inside of the light engine, the lamp too but be careful u must use only methylated spirit with a new soft dry bristle brush caution if u touch the lamp with your hands u will shorten its life. ...
I have a ten year old 37" Sony XBR TV that works fine until you turn it off and then go to turn it back on. The picture does not come back, but sound does. The only way to solve this is leave it off for 30-45 minutes, although this time period seems to be getting longer. Any suggestions would be greatly appreciated. Thank you.
Most likely it needs repiars, (replacement of capacitors in the power-supply.)primary and secondary side.\012Or loose conections (dry joints) ...
Sony KV-27V22 TV
Hello i have a 56hm66 , the tv was work fine sometimes the lighting would dim just a little then brighten back up it would do this several times then stop. well i turned tv off came back several hours later, blue light black screen no sound, switched through inputs and ant 1 got blue pink green screeen. thanks for your help
Hi.From your description the TV looks faulty and should be tested by a technician.Problems that can be seen are a fault concerning source inputs and a problem related with voltage to the lamp.The first think that s ...
Toshiba 56HM66 56" Projection HDTV