hi all im yassine from morocco i have a small company we fix eye care equipements basicaly autorefractor and lensmeters

i dont know here to post this but i wanted to post here

my issue is we dont find replacement ics and parts and we found some solutions for some autorefractors
like for exemple nikon speedy-k ccd sensor when i doesnt see anymore the solution is basicaly remove all the ccd sensor and boards with it get a new what so ever camera extract sync signals inject them into motherboard to get text back on the screen and then inject new camera video signal back to motherbaord basicaly all autorefractor that have a mesurement sensor beside the ccd camera should wortk with this solution i have other solutions if anyone would like to share informations technicien electronics anything and we can help each others sorry for ma bad english