Willem EPROM Programmer PCB 5.0E Problems

[REDACTED] · July 2013

So my Willem has not been cooperating with me this whole day and throwing errors at me when I try to program a M27C801 with a Star Fox 2 rom and It doesn't seem to even program, verify or blank check the EPROM Chip at all.

--Errors I get--

Blank Test: Device is NOT Empty ($000000)

Information Comparison (Verifying): Error at 0x000000 Chip = 0x00 buffer = 0x15/0xC2

Programming a chip: Error at 0x000006 Chip = 0x00 buffer = 0xC2

fatalfuryspecial · July 2013

is the chip in the right way? the writing on mine is usually at the bottom.

dra600n · July 2013

Chip is in backwards from the looks of it.

Moothead2 · July 2013

Chip is upside down.

[REDACTED] · July 2013

I tried either ways, it still throws me errors and I UV Erased the chip lots of times.

sazyario · July 2013

Are you using a parallel port on the computer?

Or are you using a USB/Parallel adapter?

[REDACTED] · July 2013

I'm using a parallel LPT port.

removed04092017 · July 2013

Try a ROM that wasn't probably destroyed by putting it in backwards.

[REDACTED] · July 2013

I'm buying a new EPROM, so no worries.

Willem EPROM Programmer PCB 5.0E Problems

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