Problem with a Hyundai HQP421 HR Plasma TV

It's time for a new TV Jeff, parts will be almost impossible to find and if you are lucky to find expensive.

the back lights are overheating and shutting off. replace the board

LCD TV Repair Tutorial - LCD TV Parts Overview, Common ...

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https://www.youtube.com/watch?v=tS4sIpdajVw
Aug 23, 2013 - Uploaded by ShopJimmy.com
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Panasonic Plasma TV Repair - Understanding 14 Blink ...

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https://www.youtube.com/watch?v=iHBIiRxhe0w
Sep 26, 2014 - Uploaded by ShopJimmy.com
Panasonic Plasma 14 Blink Code Explained with Repair Info How to ... I guess I'll try the SC board and if that does not work simply save up for a new ... The red power led was flashing 12 timespause a few seconds then flash 12 again. ... It powers up and shows the green power light is on, but there's no ...

The power light keeps flashing and the tv wont turn on - TV ...

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Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
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Better get assistance from the authorized service center. Before that, check whether you have pressed the mute switch!

your lamp is going out, they last around 2 years, on the average, this is easily replaced by you, door is on the right side of the tv, you can take the lamp out, if it has a bubble on it, it is getting ready to go out

solder issue at the flyback. try resoldering the flyback

The set most probably has cracked solder joints in one of the deflection circuits, which is pretty common. The picture tube and major components are fine. A good tech can quickly resolder the main board and that should not cost too much. If your set came into my shop I would charge about $50 but ask around, the shops in your area will vary.