Rambo55
Banned

I have set the Vpp to 21volts and Erase the 2732 for 2 hours still the TOP853 will not program the IC and the TOP853 is new Programmer and the 2732 are New I have try the Willem Eprom and set the volts for Vpp 21volts and setup and thee message is Device is not Empty at $000000 and I Erase the 2732 for 2 hours
Haow come each time I try to program it come with a Error at address I have Erase it so many time and setup on each Eprom programmer that this happen when I program 27256 or 27512 there are OK but when it come to 2764 and 2732 it so hard to program can any help me I have try every thing by the book and the rom are brand new and the programmer as well
Haow come each time I try to program it come with a Error at address I have Erase it so many time and setup on each Eprom programmer that this happen when I program 27256 or 27512 there are OK but when it come to 2764 and 2732 it so hard to program can any help me I have try every thing by the book and the rom are brand new and the programmer as well
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