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Repair guides and support for televisions manufactured by Panasonic.

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My Panasonic tv has a blinking red light.

My Panasonic tv code number (tx40es400b) has a blinking red light. It worked this morning at 4:00am before i left work, returned at 12:30 and this is where my tv wont turn on at all.

I have done the above

Unplugged everything, holding in the power button for resets, iv even taken the back off and there are no visible burn or swollen or blown parts.

How do i fix this as it was working this morning.

In-between me being at work and coming home the tv hasnt been turned on

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@gemmalinds24684 any patterns to that blinking light?

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The green led flashed quickly and then the red is a continuous steady red blink

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@oldturkey03 managed to upload a video

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@gemmalinds24684 so your TV shows 18 green and 5 red blinks but your TV's error codes only goes up to 13 which is an A-board (main board) failure. I guess we need you to post pictures of all of your boards, and you will need a multimeter. That way we can get you to check a few things. 在已经存在的问题里加入图片

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When asked for error code, i looked at some you tube videos to see exactly what i was looking for. In the red sequence it flashes once, and then a long pause, flash once, long pause. Looking for panasonic blink codes for one flash, i found this response:

One Blink: One blink of the facility LED indicates a drag within the inverter circuit located on the LCD panel. The inverter board isn't to be repaired within the field.

Therefore a replacement is required.

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@gemmalinds24684 here is the service manual for your Panasonic. No matter how I look at it, I do not see any of the error codes your TV displays. Error code 1 would be the panel or the P(ower)-board. That should be reasonably quick verified with a multimeter. Panasonic TX 40ES400B Chassis LA75

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Check the connections

Another possible reason for seeing the red light flashing can be faulty HDMI connections. Check to see that your input source is properly plugged into the TV and that any cables used in the process aren't damaged

Regards,

Will

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It flashes with and without any of the cables being connected, the video posted is it being plugged into a different wall socket.

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Just find it so strange, that it worked that morning and then didnt that afternoon

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