train123 |
Posted: Thu Nov 07, 2013 5:57 pm Post subject: |
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I'm not sure what you mean when you say the panel is not getting any power since the panel itself gets all it's signal from the video board.
I'm not familiar with your set but I think the power supply should still follow general guidelines.
24 volts DC is used to power your backlight board. Since you say you have a grey screen and one of your measurements is around 24 volts, I can only assume the backlight works.
5 volts and 12 volts DC are needed to power the video board, which in turn controls the panel.
Since 5 volts is not one of the voltages you measured, I'd start there.
If this set is a few years old, it is possible that some of the filter capacitors have degraded. Look for bulges on the top.
(FYI, the small cylinders with silver tops) |
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