Originally Posted by
In-Tech
I can imagine the frustration you feel, it's like de javu of stuff we lived with in the mid 80's while we were learning :(
If you don't mind, post your 2732(x) .bin file and I will burn to stuff I have here and check. Do you know where the checksum is located in your bin?
I am quite surprised your 2732a shows a 12.5v programming voltage, maybe china bs? I have never seen that in real life with a 2732a. 2732a's are generally 21v for programming. They can be READ with much less voltage but eproms are very picky about programming voltage.