Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
SOURCE: Power on problem for My Syntax Olevia LCD TV 23"
I have a 24" Olevia LCD TV. Same symptoms (Stdby LED is on, press power and it flashes off, then back on). The USB cable to the Service Port also worked. But being of sound technical mind, I figured this means that the PC is supplying the +5v to the circuit. What I did was disassebled the TV, carefully disconnected all the cables, and opened it up to reveal the circuitry. I looked over the circuit and noticed the 1000uf/16v capacitor at position CS21 was failed and bulging. I removed the cap, tested it and verified that it was indeed failed. I went to a local Radio Shack and picked up a 1000uf/35v electrolytic, after all, the value is what mainly matters as long as it's not lower voltage than the original. I replaced the new CS21 capacitor back in the circuit (it is polarity sensitive, so pay attention to what the original mounting position is). I reassembled the TV and Viola! Works! No need for the USB cable to the Service Port!
I hope this helps someone!
-Matt
SOURCE: Olevia 32" LCD HD TV model 232-S13
I have had the same problem with my daughters Olevia...232-S13 out of the blue ti just decides to not turn on...blue light lit where the on/off button located but no sound and no picture....i guess the saying "you get what you pay for" stands clear here.......very upsetting.....
SOURCE: my 32" Olevia lcd when
you may have a back light inverter board bad.
undo the back and check the power supply for bad caps in the inverter area , or check the inverter board
SOURCE: My 42 inch olevia 242fhd-t11 tv just shut off and
I just repaired this identical problem on the same model TV. You have a bad power supply (also known as an SMPS). The board is model FSP271-4F02, and is about $75. Unlike the main board for this TV, you can find the power board relatively easily. Try shopjimmy, for example. Replacing the board isn't too difficult if you have a reasonable mechanical ability, have some tools, and are careful.
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