Vertical Adjustment On A Nanao KB240331D/MC2000-S?

[TheBelly]

Hi All,

Please excuse my ignorance, I am fairly new to the world of arcade machines.

I recently picked up an old arcade cabinet and have got most of the issues sorted out apart from the vertical adjustment on the monitor.  I have installed a Jamma 60 in 1 board which is working fine.  The cabinet has a Nanao KB240331D/MC2000-s chassis which is working but I dare say could do with a cap kit.  I need to reduce the vertical size of the picture but the vertical H pot has a totally different looking pot on it and I am wary about fiddling around with it until I get some guidance.

How do you adjust the vertical height on this type of chassis?  Is there a special little tool required, do you simply put a screwdriver up into the tube or is there no adjustment possible?

Thanks in advance.

[grantspain]

do you mean horizontal size coil,if so you need a plastic hex trim tool

best post a photo of what you talking about

[TheBelly]

do you mean horizontal size coil,if so you need a plastic hex trim tool

best post a photo of what you talking about

Yep I am pretty sure that sounds right.  It is more of a cylinder which is several cm's long as opposed to the regular white pots for all of the other adjustments.  Now to source one here in Australia.

Thanks very much!

[TheBelly]

Anyone have any idea where I could get one of the plastic hex trim tool please?  It would need to be posted to Australia.

Thanks.

[PL1]

If Mouser or another electronic supplier doesn't have them, you might be able to 3D-print one like this. (not sure if the size is right  )


Scott