Flanders CM250 repair shop and rental shop?

I have a Flanders CM250. Last night I turned it off for minute, and turned it back on, and the SDI signal disappeared. Just a black screen. It seems to start up almost the same. The yellow bar at the top turns on, the red power button lights up. In the past, when the video signal did appear, just before I would see it, there would be almost a glitch like quarter screen green neon thing. That happened every time I turned it on in the past. Flanders' said that was normal. That no longer occurs, but I do see I hint of something on screen when it turns on before going black.

The monitor is passing the SDI signal through the loop out to the scopes. I see the SDI signal in the scopes. So I know the SDI signal is going in and out of the Flanders. It almost feels like a short or loose component to the video board or something.

Of course it happened Friday night, and Flanders isn't open until Monday, and their in Georgia.

Does anyone know I good monitor repair tech in LA, and or a good place to rent a calibrated Flanders?

Thanks!