No Power Hi, Up until last week my TV was working fine. I tried turning it on the other day and the TV was completely dead. No power hetting to it at all. The outlet has power. What's your best advice on this? Thanx in advance. JDS

Does the power light come on? If not, check the power cord and power outlet on the wall. Maybe plug in a table lamp to the wall power outlet to make sure the outlet is working. If the power light is on, check the Mute button on your JBL remote control. Also check the Mute button on your TV if sound and picture go through the TV first.
We had a Harman Kardon soundbar (model SB30) made by the same company as your JBL. It worked great for a few months. Then there were a couple of funny high-pitched sounds that stopped when we turned the soundbar off and back on. Then a day or two later we truned on the soundbar and it was completely dead - no sound at all. Harmon/JBL replaced the soundbar under warranty with a refurbished one which lasted about two weeks and dies the same as the first one. Finally, they replaced the second one with a higher model (the SB35) which is still working, although it occasionally makes a rapid clicking noise for a moment here & there.

i this problem is in pwoer cord u change it try to on it your problem will be sloves

if the poqwer code is ok then chak your tv trnsformer

You might have intermittent ON/OFF switch. Can't think of anything else according to the description of the fault.

Check the main power regulator section circuit.

Take ur tv aparts,where the a/c cord plug in,that ur power supply board.U know basic electronic and soldering?Check for those bad gases leakage capacitors they bulges up it top,or puff up it top.Replaced these bad capacitors will get power back and work.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

capacitors in the power supply, they all should be replaced, before it takes out the rest of the ps. there are companies that rebuild them if your tech is not up on repairing them.

the remote button has change resistance... its a carbon film resistor on board.. cleaning

I would check the line coil and horizontal and low voltage regulator transistors.

look for imperfect contacts on the inside main board.

your tv needs to be repair again power supply problem or circuit.good luck.