3.19.2005

I'm A Steely Eyed Monitor Repair Man - Not Really, But I Feel Like One!

Thanks to some great input from folks in the BYOAC Monitor Forum, KLOV Forums, and Vector List, things are really looking up!

I put the chassis back in and started working through the settings, here are the results -

Blurry Picture


- Duh, adjusted focus got better - Fixed

3 images

- Tweaked vert hold and black - Fixed

Horizontal bleeding

- I started with the black, this helped a bit, then tweaked the drive. I turned the drive all the way in the direction that was helping the problem but bottomed out with bleeding to spare.

- Tried the horiz and vert raster shift pins. There are three pins for each setting, tried each horiz pin, no change. Just to see what it would do, tried verts as well. No change. What do these things do?

- Tried tweaking the vert damp, again a bit off the problem, but trying to see what it does. No change.

- Finally tweaked the Red, Green, and Blue cutoffs. AHA! - Mostly fixed (see below #3 and #4)

Issues outstanding -

1. Upper left corner as the monitor sits on the desk (horizontal orientation) the color, mostly appears to be the blue is a little lighter than the rest of the screen? FYI: I installed a capkit already.

2. Very top of the screen, right 2/3 - there is a thin line with multiple colors. In the Tank game or the cycles, this line is obscured by the playfield frame. Is this a Tron bug?

3. In order to really get the cutoffs set correctly, I am going to need some contact cleaner. The rest of the pots turned smoothly, but these are very jumpy. Will pick that up in the am.

4. Also to get the cutoffs set properly and fine tune the display further, I need to get into test mode. Waiting for the various games to display makes it hard to test. To do this I need to be able to use the trigger and the trigger was removed from the joystick. I have it but it needs to be reinstalled. There is a security torx screw ontop of the joystick and I will need to pick up the right bit in the morning as well. I could hack the trigger input, but since I need the other stuff, now is as good a time as any.

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