Question about Panasonic TH-42PD50U 42 in. Plasma EDTV
The color on the screen began to shift to black and white; now it's only black and white. Also, prior to that, the screen seemed to zoom in, but now I wonder if it was switching between widescreen and normal modes. Any ideas? I tried checking for loose connections, but no luck.
This may be part of the power supply distribution to one of the circuit areas. If it is a power loss, it may be from the secondary side of the flyback transformer power supply distribution.
The areas of concern would be in the scan generator, and in the colour demodulator circuits.
You will have to take the set to an experienced service tech to troubleshoot for the exact fault and change the defective components.
Posted on Apr 30, 2008
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Posted on Jan 02, 2017
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