NEC - 42" Commercial Plasma Screen ****(no TV Tuner) Multimedia Projector "monitor model px" Questions

...model pdp 4294lv1 has sound and i can switch the tv channels, but the color is blurrier Same Problem and cannot find any xrepair manuals or much documentation on this tv. I am from Philippines and I ...

...monitor, this plasma goes off with in 1 Minute, pls. give solution thanks pramod I have a laptop connected via VGA 15pin cable to a Plasma TV Model no NEC/PX-50XM3GU. Worked perfect until recently. ...