Jl Cooper CS10 Crazy Horse Odyssey

[r2d2]

Hey to All

some day ago the Jl Cooper CS10  (midi version)
that worked fine for years

start to do the "crazy horse" ,
i supposed the issue was about old caps (50v - 4,7pf)

but after the caps replacement and voltage regulator check
unfortunately nothing changed  :-\

still "crazy horse"  :-\

the other strange thing is that the transport section placed in the "main"pcb
where midi connectors, power connector + the on-off switch , power voltage regulator and most of capacitors, cpu , firmware rom are placed too,
work fine

seem that problem is only on the faders , switches , pots , leds status , and the numerical 2 slots,
"secondary" pcb section.

in the attached image some more detail about

any help about is welcome as always
thanks in advance about.

ps:
do not tell me to contact jl cooper support !!!
i just know them , and their answers.....
that never help me !

 

[r2d2]

here attached the image that show  the "main" pcb
with Ics info .

 

[r2d2]

here the image about "secondary" pcb with Ics info

 

[r2d2]

and more the image with replaced caps position