Need Info- Pattern Generator Designs

[Choong Keat Yian]

Hi, group. I do industrial electronics repair service and there were
times that I wish to have a pattern being seen on those repaired
controller monitors so I would be glad if anyone know any project out
there to built a monochrome or color pattern generator for my service
needs.

Thanks
Choong

 

[Matt J. McCullar]

Hi, group. I do industrial electronics repair service and there were
times that I wish to have a pattern being seen on those repaired
controller monitors so I would be glad if anyone know any project out
there to built a monochrome or color pattern generator for my service
needs.

I use video pattern generators made by Tenma for this purpose. Many
industrial video monitors use horizontal scan frequencies that aren't used
anywhere else, so commercial pattern generators for them are not common.
Tenma does make them, but they may be hard to find. I found mine on eBay.
Sorry I can't remember their model numbers...