Monaco Gp Cabaret Graphics Problems

[glstar]

Hi.
Yesterday i've received a nice Monaco Gp Cabaret.
The problem is that i have weird graphical glitches but i don't know how to fix it...
Here you can see a video of the problem:

Please help me....

[maldoror68]

seems complex ,cause all the Monaco Gp pcb is full analog logic 
(and still not emulated in Mame)

the cars and other things are ok, only the background seems to be "out of bounds"

the good thing, is that there are a LOT of capacitors on the PCB rack (i don't remember ,there was a lot of pcb layer in my memory.....)
so it maybe only need a "capkit" 

the manual may be essential for you...

isn't any "test mode" in this amazing game? 

[glstar]

seems complex ,cause all the Monaco Gp pcb is full analog logic 
(and still not emulated in Mame)

the cars and other things are ok, only the background seems to be "out of bounds"

the good thing, is that there are a LOT of capacitors on the PCB rack (i don't remember ,there was a lot of pcb layer in my memory.....)
so it maybe only need a "capkit" 

the manual may be essential for you...

isn't any "test mode" in this amazing game? 

Thank you for your help.
I don't know if this have some test switch or something similar....
It's the first time i see a so old "monster" 

[Runik]

You can check the schematics here 

[glstar]

You can check the schematics here 

Thank you.