Re: TDS544A with strange display #photo-notice
On Sun, Mar 7, 2021 at 4:02 PM durechenew via groups.io <durechenew=
No, the blue trace is not compromised, but your observation is correct;I beg to differ. Try to switch that particular signal to one of the other
channels, my $0.02 says the trace dropouts will follow the trace color.
Idea of oscillation came to my mind too but I had to abandon it. The blueThe length of the blue stripes clearly follows the amount of white content
on the previous line and/or the line with the stripe.
And it's not oscillation because those would not be synchronized withGood point, I can't explain that.
I don't think there should be anything on the CRT board that follows the
dot clock... I also don't think there's anything on the CRT board that's
per color, other than on the LCD driver board.
I don't know exactly how the raster scan occurs on these screens, but I'd
suspect the full raster is scanned for each color, changing the LCD shutter
between a full frame scan. ... time passes ... It's rather interesting that
there are 12 lines from the LCD driver board to the LCD shutter. It would
be unnecessarily complex and awkward to have an LCD that matches the CRT's
dot pitch - what the hell is going on there? IDK - what is LCS_CLK - it's
brought out to the LCD shutter logic.
My scope has also that possibility to check the colors, but I didn't
discover any possibility to change anything (maybe different scopes withTo bring up the Color menu:
1. Press DISPLAY to show the Display menu.
2. Press Settings in the main menu until you select Color from the pop-up
menu (see Figure 3-4)