I had the same prob, but found out that the problem with the Olevia lcd tv's on most models not powering up is because of failure of capacitors on the power supply board that I do believe is due to excessive heat and lack of ventilation.
I took the tv apart and got access to the main board and just by looking at the capacitors I could tell which one were the bad ones..
I will show some pics that I borrowed during my repair, hope it helps as reference as it did to me.
I replaced the bad caps with new ones that I bought at a computer parts store.
Now I got my lcd tv back ON but this time I added a internal cooling fan for better air flow that will reduce this malfunction from happening again.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Well, at least the standby 5vdc circuit is still working but the problem can be in the controller board is not sending the signal to turn on the main power supply sections, or the power supply itself is bad. Look at the power supply first for burnt parts, bad capacitors. http://en.wikipedia.org/wiki/Capacitor_plague
What did you try so far? The main power supply MUST have at least the 5V standby supply section working. This 5v is used by the main control board to send out the command to turn on the main power supply section which will power up the rest of the TV circuits when the power switch is activated either by the power button of remote or on the TV powern button. Look for this 5v first.
You only have 5v standby voltage circuit working. The problem can be i nte main power supply or the main control board that send the signal to the main power supply to turn on. Those are the two place to look for. http://en.wikipedia.org/wiki/Capacitor_plague
Olevia LCD 542I - Had the same issue for a week until the tv would not turn on anymore, after several attempts it came back on. A few days later the tv turned off then only the standby light was on, then lost the standby light as well. After researching the problem it could be in two areas, either the power supply or main board. Removed the back and found the power supply had several capacitors that were bulging on the top and appeared the fluid was leaking, all signs of a failed part, removed the PS and replaced four capacitorst that had shown some issues. If you can removed the PS and check for a number on the board, mine was FSP271-4F02, and find someone who has some electronic circuit capablilty, the issue may be resolved at a fraction on the cost of a new power supply.
I think this model has a timer on it, it seems to go when the warranty runs out, not proven but Mine went out about a month ago. My only fix is to plug my tv (via the service port which is COVERED) to the usb port on my computer using my BlackBerry usb cable, in other words the Mini USB. Seemingly I must be logged on to do so and wait for the Chime form my pc, a balloon will pop up for new hardware not recognized (vista) then press the power button and then it turns on, unplug the usb cable and make sure the source is set to tv / video or else it will power back off and you will have to start all over. Theres NOT A PERMANENT fix yet but this is what I do every time I want to use the TV, I have a laptop so I use it as the Monitor just to watch movies. If you have a desktop I recommend keeping the cable handy BUT DO NOT LEAVE THE USB CABLE IN FOR LONG USES. THE SERVICE PORT IS COVERED FOR A REASON!!!