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I cannot use spacer between multi and A board , the upper one. I will try to go back to my 3cm plastic screw spacers just in case

Ok I will order a M72 cap kit

I actually changed the plastic solid spacer (attached with screws) of 3 cm I had, to metal hexagonal ones of 3 cm too, in both cases pcb eprom were not touching the upper pcb b board. Do you think that changing plastic spacers to metal ones can cause problems (even if there is no contact between...

Some varistor orange, are touching the multi on the a board from below. Can it lead to problem ?

View: https://youtu.be/6B3CAdPw3cA?si=IVNcx8csPssRYpUv Any idea about these small glitches ? They don’t always appeared. I tried to reseat the three boards but doesn’t seems to change something. Thanks

2 days ago, I played all the games at least 10 minutes each. All of them worked. I did nt notice any glitch or sound problem. Yesterday I spent 2 hours on dragon breed and 1 hour on r type. Still no issue. It works nicely thanks everyone for your help and advices

I am using the pack from the link you gave me . V2 version. The darksoft apocalypse M72 2020-12-30 . This should not work ?

Ok it s working. I have tested all the games and apparently no glitch so far. Thank you all for your help the problem is found them ! there are many versions of pack, notes etc . Always I found the wrong one. So I am asking confirmation. Anyway it works I t was just the wrong pack I used the...

For jumpers settings is it correct on the pictures ?

This one ? Is it ok ?

I ask our friend ChatGPT

Thanks actually I was wondering if this one was good, In the lab I am working we have UV lamps I will try these first. Do you have an idea of the optimal wave length for eprom erasing?

thanks

Thanks

Where you guys are buying UV eprom stickers ? I found some on Amazon but too small. Usually I need two stickers to cover the eprom windows

What is the optimal UV wavelength for eprom erase ?

Ok I will check it

Takes *

Thanks M72 2020-12-30, is it correct ?

Thanks does the sun light can do the job, I guess yes but it thanks time ?