I have a Sharp LL-T15A4-S LCD monitor. Here's the symptom: The screen is 12" wide. Draw a vertical line 2" from the left side. To the left of the line, the picture is perfect. To the right of the line, every other horizontal line is missing. Alternate horizontal lines are perfect on the right of the line.
I can't think of a panel defect that could cause this. Gotta be some addressing problem in the control chip.
I've been looking for information on the CK1659 MASCOT V chip and the CS8528N chip in between the MASCOT V and the panel.
I tried setting up a white screen, triggering on the vertical sync and recording a few horizontal lines. Instead of a clean signal, I see a LOT of noise and maybe some places there's no signal, but it doesn't correlate to the missing lines on the screen. Shouldn't I expect clean digital signals to the panel?
Any info on how the MASCOT V works or FREE schematics of this particular monitor? I did find a schematic of another monitor with the MASCOT V chip and the signal names suggest something about even and odd. But only part of the odd horizontal lines have a problem.
I have lots of time and a desire to learn about this, but I'm not willing to spend money on it.
Ideas? Thanks, mike