Re: My Klyball 600D build
Posted: Tue Mar 26, 2024 8:38 pm
So with it being difficult to describe what I'm currently seeing, I thought it best to provide a video:
https://www.youtube.com/shorts/r9WOA8zI3Sw
Incidentally it also does this on my 5" B&W TV.
The two images also sort of hint at it as you can see the image is flickering meaning a photo captures just a part of the screen:
I have been round every key switch and tested with a multimeter and none appear stuck, however if I hold down each key singly, the screen becomes normal with one exception - REPEAT.
I presume the function is to cause auto repeat of the keys when held down in combination? I have changed the switch, but no different, the same when its removed. However when I hold keys down they do repeat without the need to hold down the REPEAT key.
I am convinced this is a keyboard issue, though what I do find odd is that REPEAT does share rows and columns with other keys that work OK.
I think next I should check all the pull ups for the rows and columns. Any other ideas welcomed.
EDIT: I did find a bad diode, but it didn't help when I replaced it.
https://www.youtube.com/shorts/r9WOA8zI3Sw
Incidentally it also does this on my 5" B&W TV.
The two images also sort of hint at it as you can see the image is flickering meaning a photo captures just a part of the screen:
I have been round every key switch and tested with a multimeter and none appear stuck, however if I hold down each key singly, the screen becomes normal with one exception - REPEAT.
I presume the function is to cause auto repeat of the keys when held down in combination? I have changed the switch, but no different, the same when its removed. However when I hold keys down they do repeat without the need to hold down the REPEAT key.
I am convinced this is a keyboard issue, though what I do find odd is that REPEAT does share rows and columns with other keys that work OK.
I think next I should check all the pull ups for the rows and columns. Any other ideas welcomed.
EDIT: I did find a bad diode, but it didn't help when I replaced it.