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Won't power up

I have a problem with my tv, when you hit the power button it just clicks,and won't turn on, I sent in the main boards and had them rebuilt, and it still does the same thing the standby light flashes 6 times, any help at all would be greatly appreciated!!!

Posted by christi gammon on

  • the waco kid Nov 04, 2007

    When you hit the power, the light flashes 3 long and 7 short flashes. Then it flashes 6 flashes. This is repeated for as long as the supply is there. I have replaced a cap that appeared to be going out to no avail.



1 Answer

marco amezcua

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Well this sounds like your power supply check fuses and horizontal transistor check to see if all connections are good get back to me

Posted on Nov 02, 2007


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Have a Lg tv when I plug it in I hear a clicking noise from the main board and the power light blinks. I can press the reset button and the clicking will stop but tv still won’t come on. Is the main board...

Depending on the model maybe. Tv's like all electronic items use multiple circuits that are interconnected. So if you have a problem like you described it can be any interconnected board. I experienced problems like you described many times. Use your eyes and nose. Turn off the power, remove all boards and visually inspect. While boards are out sniff each board. Look on both sides of each board. If nothing is found I would start with the power supply and replace it. You can check the output voltage where the power supply connects the the main board. It is harder to check the main board function because the signals pulsing thru the main board require specialized equipment.

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Samsung plasma won't turn on

Here's is what you need to look for when describing a problem for troubleshooting purposes:

0) What model is the TV (you've covered that)

1) Does the TV respond to command to turn on?
(yes - continue; no - 70% bad power, 30% bad main board)

2) Once it responds (clicks), does a front LED or other indication show that it turns on? It's OK if there's no display.

(that can be model specific and is not certain indication for anything until known what is specific for the model)

3) If such an indication comes up does it remain on until you act or does it go off by itself?
(Stays on - power supply likely good; turns off - power supply *may* be good, but not certain)

4) If the power indication stays on by itself can you make it go off by pressing the power button or do you have to disconnect from AC power?
(responds to power off - 90% power supply likely OK and 90% OK main board; does not respond to power off - 90% bad main board)

Here is a link for test/repair of the power supply of your TV, hope it would help:

1990 panasonic tv model# CTM-2783S won't turn on

the tv need for servicing, the cause is either bad regulator transistor in the power supply section or shorted horizontal output transistor. that is why the main circuit board doesn't get to turn on. to do the repair just ensure you have knowledge in repairing tv.

Power button won't turn tv on. light keeps blinking on and off

Main board to your TV is faulty. Check the chroma and video processing section. In most cases, it will be due to an IC fault.

HDMI/ DVI inputs failed approx. one month after connection of Denon home theater receiver with HDMI pass-through feature "on." Gear successfully re-connected via component video...

hi welcome to fixya
i want to clarify first the problem sir so as of now the problem with your tv won't power on then you are using again the old main board is that right ? when you use the new replacement main board the tv is functioning will the only problem is that the HDMI / DVI inputs doesn't work. and now you encountered power supply problem like won't start up or something that cut the supply in which the stand by indicator is turn off so as my idea it has a problem with the old board. but before you come up with the board making sure all the connectors coming from the power supply is properly connected to the main board as will as flexible and lvds cable for the T-con board is properly inserted.just let me know if is that what you are asking for so i can give you additional solution thanks for consulting the fixya.

The tv just suddenly stopped projecting video and sound. Now can't get tv to come on. When I unplug it from the wall and plug it back in the green light at the bottom is on and when I hit the power button...

1.You have a power supply issue on the main board of the TV.
Your TV will need service.
2.the inline protection fuse or the rectifier circuit has malfunctioned ( weak or bad) component and need replacement parts.
3. the clicking sound is the start up circuit but the voltage signal sent to the next circuit is not received therefore the system in not activated.

Polaroid tlx-3210b tv will not turn on the red light comes on and the blue light comes on when you hit the power button but still no picture or sound have to unplug tv to turn off blue light. contacted...

Symptom shows that Mani Board is bad in your TLX-03210B Polaroid TV and need to be replaced. I do not see problem of capacitors in power supply board. Problem seems in system control section of TV that is located on main board.
Click Shop Jimmy as it is best source to obtain boards of LCD TVs.
Please call Shop Jimmy for main board availability as currently its out of stock.

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