I have a 55 inch Seiki tv and when I plug it in the standby light comes on for a couple seconds than goes off and that's it. Does that mean the power unit is bad or the main board?

Hi,

Please disconnect all accessories. Then turn on your tv again. Please make sure that neither the power button on the tv or that on your remote is stuck because this could lead to the issues that you've mentioned. Otherwise, you'd need to factory reset your tv.

Thank you.

try changing input or source if same bad power board

When it turns off is it like it's unplugged or does it show a standby light?

It has a reset button on the lower back right hand corner; push that button.

Usually it is the power board. Try finding a replacement power board it should fix the problem.

I fixed my 55" Samsung with the exact same symptom.

IF power light on front comes on for a second or two and goes off do the self check this set has:

On front of set when power light goes off, press and hold both the Input and Menu buttons at the same time for more than 5 seconds and release both buttons.


Power light should blink a two digit error code like: 2 blinks, 2 blinks, a pause and repeat the code four more times.


If this information helps and you want to know what error code found means rate this solution as very helpful and comment here and I will tell you what it means.

SD TECH

helloFive blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.

shaun