Marble madness Rom error

[Body pop]

Hi guys ,
Could anyone point in the direction of what the problem is here on marble madness board
Roms were previously replaced ,I’ve also reseated them all but still getting this on screen
It says
Rom at xxxxxx error u
Thanks

 

[Bods]

Is that booting Normal or in test mode?

not that I know what I'm talking about much but Have you read through the manual, I find Atari I quite good and it tells you Rom at U are 13E, 14E, 15E, 16E but shows 100000, 180000, 200000 or 2800000

Tried another Cartridge to check Mainboard?

 

[Body pop]

Is that booting Normal or in test mode?

not that I know what I'm talking about much but Have you read through the manual, I find Atari I quite good and it tells you Rom at U are 13E, 14E, 15E, 16E but shows 100000, 180000, 200000 or 2800000

Tried another Cartridge to check Mainboard?

That’s it booting normal ,the mainboard works with my roadblasters ok
Thanks I have manuals for the roadblasters I’ll have a look at

 

[Ace`]

When I had it, it came up with that error once but after reseating the rom board / motherboard it worked fine for hours after that and several boot ups. I did clean the contacts and spray the edge connector with contact cleaner but maybe it needs another clean.

 

[Body pop]

Gave it another couple of going overs with de-oxit .still the same thing .