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Re: Mission: Impossible --> Rescue an rare 42in1 ROM
Posted: Fri Jan 17, 2020 12:30 am
by Carles20vt
krzysiobal wrote: āFri Jan 10, 2020 10:40 am
Take a multimeter and check if PIN1 of this mask-rom shows any voltage drop with reference to other pins, when in diode test mode.
I have done the test and have same result that other pins. Any voltage drops at Pin 1.
Re: Mission: Impossible --> Rescue an rare 42in1 ROM
Posted: Fri Jan 17, 2020 12:33 am
by Carles20vt
NewRisingSun wrote: āSat Jan 11, 2020 5:26 am
Show screenshots and/or a gamelist of the 22-in-1 part. If it is the same as the DY-636-42's, then one might just take that one's 1 MiB ROM and replace the 20-in-1 part with yours.
Hello,
I can't do it because the original NES clone that contained these ROM was destroyed 25 years ago. I kept the ROM apart years and years until now.
Iām using memory and the 22-in-1 part from cartridge part is very close, or the same, that I remember about it.
