The modification:
WILLEPROM PROGRAMMER
MODIFICATION
For PCB SPI 19019900
By 4Z5AY
The modification came after an attempt to read 29F040 Flash.
The results were very strange.
Parts for the modification:
Wire (Wire Wrap or similar).
DIP switches 2 pole.
Special tools:
Sharp knife (To cut the PCB).
New switches positions
For Normal Programmer Operation (as was):
SW 13-OFF
SW 14-ON
For Use With 29F040:
SW 11-ON
SW 12-OFF
SW 13-ON
SW 14-OFF
all other switches stay in the same position.
Have Fun
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