Question about Fujitsu Plasmavision PDS-4209 42 in. Television
Hey everyone =D any help would be greatly appreciated!
this is my problem...
i have this plasmavision it has been working fine since i got it, now all of a sudden the picture will just disappear, as its only a display unit and I'm running my audio thru my home cinema system.
its an intermittent fault but its been progressively getting worse, sometimes a sudden display change will cause it to stop working, a total display loss with no osd... however green light continues and the psu still carries on operating with fans going... until a couple of minutes when it will shut itself down and display an orange light for no input signal.
Ive had the psu out and tested all the connections as i have the service manual but no schematics. when the unit is fully operational all output voltages are correct but a few which maybe a volt lower or higher than stated.
however when the unit stops displaying a picture, the x and y sustain outputs drops its tension... only one connection does this on the CN49 on the Ve pins for both x and y sustains the tension drops from nominal 16v to 4.2v
i have removed the sustain connectors to power up the psu and funny enough... without the sustain boards connected the pin has only a 0.2v output
this is really confusing me now. Its a bit of a bummer too as i have no schematics to follow *puh*
am i right in thinking this is solely a psu problem?... or maybe a faulty digital board?.. seeing that the display shuts itself off due to no signal? or could it be a faulty sustain board?
does anyone know whats going on or had this problem before? kindest regards to all... Jay
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