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Arkanoid help heeded

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RayB:
When you say you replaced the PCB are you talking about the GAME pcb or the small "optic" PCB on the spinner controller?

Have you cleaned out the spinner optics (if dirty)?

Entropy42:
I replaced the GAME pcb, and I've never thought to try cleaning the optics on the controller.

For the monitor slanting problem, i mean that the screen is messed up, not that the monitor is physically misplaced.  I'll look and see if mine has any knobs on it to adjust the position.

Thanks for all the suggestions guys!  Now I've got more things to try than I have time to try them :-)  

MonitorGuru:
I've seen the spinners only go one direction when:

1) One of the 4 wires is disconnected or has a short
2) The harness is connected backwards to the optic board
3) The harness is connected one pin off on the optic board.


I have 4 different arkanoid boards and know a bit about arkanoid, feel free to post pics and more details and I can try to help

RayB:
PS: The monitor slant: It likely needs a cap kit.

MonitorGuru:
Another couple of thoughts.

Spinners:
If the optic board is tilted or off to the side or not entirely centered over the optical cutout disc, this can affect the dark/light patterns being detected correctly and can skew the readings one way or another. Check this  and or post pics and I might be able to spot if it looks off.


Slant:
You may have magnetism by the tube or frame in that corner, though typically you'd see a discoloration as well

You may also have extraneous wires "hanging" by the yoke that are affecting the deflection. Clear out any wires, especially AC from the back of the tube area (like if the cord running to power the monitor is wraped upward and laying against the side of the tube

You could have a twisted yoke but that would show as a perfectly square "twisted" screen, not one corner "drug"

You could have lost the little magnetic tabs that are stuck on the back of the tube to bend the electrons better to a corner. These look like white plastic flat sticks usually with a red end painted on where the magnet is.

Someone may have done a tube and or yoke swap...yokes not specifically made for a chassis will give weird geometic distortions like this.

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