Question about Samsung HP-R5072 50 in. Plasma HDTV
When you turn the tv on the button stays on for about 2 seconds and then goes off. The tv screen never comes on.
It's normally a power failure/surge on the main board. Most common with LG tv's of this type. Samsung tv's of this type don't actually turn off, they only go on standby, which is why you can turn the Blue Eye off in the menu. One solution to try (if you haven't already), is to disconnect it from the mains (this is also the only way of actually turning the tv off), leave it for 24 hours, and try again.
Posted on Nov 28, 2008
SOURCE: Sony KDL-32ML130 lcd tv
Not really that tough. Sounds as though the backlight is shutting down, either from a power supply failure, or a failure of the backlight circuit itself. You can verify this by holding a flashlight to the screen in the area where the menu usually appears to see if it displayed on the LCD panel with no backlight. If you can faintly see the menu displayed, your backlight has shut down and the most likely cause is the backlight inverter board, followed by the power supply and the backlights themselves which are part of the LCD panel. If you found this information answered your questions, please be sure to rate it. Thanks!
Posted on Oct 25, 2008
Tips for a great answer:
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Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
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