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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by blitz[/i] [br]using a pcb3 according to hte 98ja program, but I don't think that is the model. Mine has all surface mount and a coupl of plcc sockets on the right side of the zif. I have a 12volt supply connected as well as usb and parrell cable. It can read and blank check, also if I move the jumper it wil erase a w27c512 just fine. When I go to program I load my bin and tel it to program, which it says it does... then when it verifys it fails! upon reading the chip and displaying the buffer is see that all the locations 000000-00FFFF have been changed from FF to 00 and not programed with the buffers data that I loaded. any insite as to what is causing this malfuction??\ thank-you blitz [/quote]    Insert an Image File Check here to include your profile signature.