Question about Samsung SPN4235 42 in. Plasma HDTV

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My Samsung SPN-4235 had the picture go out several months ago. When the power button is pushed, it just flashed on and off. It wouldn't power on for 6-7 weeks, came back on for a few days, then started to go in and out while watching a movie. It's had no picture for several months, not sure what to do. It has sound, and very low hours of use, but no picture at all. I pulled the back panel off, checked for swollen caps, but didn't see that was a problem. There is a small green light flashing inside on one of the boards behind all the inputs and power supply and all, which flashed when I have powered on the set.

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The flashing led is on the logic board and it indicates communication from the main bd to the logic bd via the lvds cable --your problem would best be analyzed by verifying the va - vs - ve - vset -and vsc voltages - then if all are good it could possibly be the y-main or the x main bds

Posted on Feb 06, 2010

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Posted on Jan 02, 2017

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SOURCE: Screen is green with no picture.

The only simple fix fix for that may be an "ac boot", otherwise known as "unplugging for 1 minute, the plugging it back in.
Sometimes the internal microprocessor gets scrambled and this *might* help. If not, there is an internal fault which needs attention from qualified personnel.

www.mcveyelectronics.com

Posted on May 03, 2009

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