help pce duo recap not detecting hue cart only reads cd games

[mario_pic]

ok got a pce duo on ebay not to long  ago got around to recapping unit  come time to test it found im only able to play cd games and for hue card cames system just gives me colored screen  was wondering where the hue card slot traces go to what ic on the pcb so i can check connections

[thesteve]

the cd system runs across the cart pins, so likely not it
also cd uses all the chips, where cart uses half
look for dirty or damaged cart slot and check card region vs system region
also check for region mods as they could have been done badly or simply in the wrong mode