need help on the 2732

[Rambo55]

I have new 2732 Rom are 21volts I have a Willem Programmer I have program/test ram has Error at 0x000000 chip=0x00 buffer = $000000 0xFF I have Erase for 10 min I have use the same Eraser for the 2764 and the 27512 Rom and Erase them OK but when I Erase the 2732 and do a check Device is not Empty $000000 can any one nelp me I have Done every thing by the book and I Erase the 2732 and new and the Eraser has Erase the 2764 and the 27512 OK

 

[ZASto]

Try to erase the chip for another 10 minutes, and after perform Blank check.

BTW, have you checked the jumpers?