I have a Samsung HCM553W rear projection TV that is only showing the picture in red.
I took the screen off and I can see all 3 color guns, Green, Blue and Red.
All 3 are lit up, but only the Red on has a picture in it.
The other 2 are just lit green and blue.
It looks like they are not getting a video signal.
Has anyone ever seen anything like this ?
Thanks in advance.
Bill
direct snipped-for-privacy@hotmail.com
So since all three crts are equal in output but ony the red has a video signal you have red picture content atop a normal raster?
I know of a few Samsung common problems but not this. Doesn't appear to be something that would require anything besides some standard tv repair tools and test instruments and a print with some test signals/voltages at key locations.
What's the video source? External component? Perhaps the G and B cables have come unplugged. Or someone's kid could have been screwing with the DVD remote and cranked the G and B levels to zero.
If its using an internal source (tuner), there could be a loose connector or board inside. Has the set been moved recently?
If its not that, I'd start looking around the color demodulation stage. I find it odd that two channels downstream of that would go bad simultaneously.
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