I think the colors are fixed. Thank you again grantspain for your help and time
. I went transistor-replace-postal and replaced all the transistors on the interface-board. (minus two TR5, TR6). Replaced the transistors on the neckcard in the red lane (TR32, TR33, TR34) and measured the resistors and diode D19. All looked good.
I thought I was ready to go. Hooked up the chassis, no red. That can't be. That's when I thought of the thread in which a guy wiggeld is JAMMA connector. I thought what if the game board has become faulty. It works perfectly in my other cabinet with the MTC 9000.
Luckily I have not sold my other arcade cabinet with a Street Fighter JAMMA board yet. Hooked it up, set it to maintenance mode and voila. See picture. All the colors are there and fully adjustable. Wohoo!
But of course... another problem occured. Where the other game (Knights of the round) is easy to adjust the settings (horizontal/vertical etc) I can't get this game (Streetfighter II) to get stable. Even with a stable picture like the maintenance screen near the white you can see it bending off. In reality it is 'wobbleing/unstable'
- The colors are off. They look a bit like when I turned the little switch on the chassis of the MTC 9000. The colors look like 'in negative' (see picture number 2)
- When I do get it a bit stable when scenes change it becomes blurry/moving again.
- When 'stable' the screen looks wobbly
Could this be a ground issue? If so, should I solder extra wires to the ground points on the PCB and connect them to the chassis? And/or should I connect the DC-COM of the JAMMA powersupply to ground?
The 'negative' colors: should I connect the jumperwires on the chassis to the pins with the - symbol (or is this for vertical monitor orientation?
Could it be a PSU problem?
Does someone know what to do?
Thank you in advance.