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Seen this before ? CRT


padgett

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After sitting for a month or two I fired the Reatta up and am only getting a part screen .e.g top 1/4 and bottom quarter are missing & screen seems compressed. Sometimes the top will restore but not the bottom. Does it reform the caps eventually or do I need to dig out a spare ?

 

Missing top and bottom

partscreen.jpg.629d768be148bbb20d389cfaba1a961e.jpg

 

Just missing bottom - pops back and forth but no full scream yet.

 

partscreen2.jpg.e416ee055099c14066d112d6047495ef.jpg

 

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  Looks like a CRT problem but the touch screen is an overlay grid and each touch pad is a programmed location. I suspect the touch

functions still  work right?  

  The CRT electron beam is swept horizontally rapidly until it reaches the bottom and then jumps to the top to begin another vertical sweep. 

Looks like a DC component of the vertical sweep out put has failed. Most likely repairable if a schematic was available.

  A good TV tech could fix it....... oh just find a spare.

DP

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  • 2 weeks later...

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