Is it a part that changes or is it really complex?The SP485 is dead.
ok it is located or on the motherboard it is necessary to disassemble everything to change it?It can be changed, look at the board; it's a 1€ chip.
Probably it’s a dead COM controller chip on the motherboard unfortunately, the games hook to COM 3 port on the motherboard for JVS to workbon j'ai envoyé la carte esif (verte) pour changer le sp485 et c'est malheureusement toujours le même 3-1 I/O ERROR 1 y a t'il un système pour passer le jvs ou autre car je suis dans une impasse
yes I think it must be a chip on the CM to com 3 which is dead but to find which one is dead it is better to change the motherboard?Probably it’s a dead COM controller chip on the motherboard unfortunately, the games hook to COM 3 port on the motherboard for JVS to work