MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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T O P I C    R E V I E W
D@nno Posted - 01/16/2008 : 09:57:32
Hello, I'm having some strange voltage issues from my dual powered programmer. As per the tests in the forum:

vpp-26.6, 32.1, 45.7, 54.1
vcc-10.1

All pins have 8.6 except for following:

27-5.9
22-7.7

13,14,15,17,18,19,20,21,24,25,29 all have 0

The programmer is messing up my bins when programming, I'm always getting verify error with the chip not matching the buffer.

Any idea what is going on here?

Thanks, Dan
3   L A T E S T    R E P L I E S    (Newest First)
ZLM Posted - 01/21/2008 : 10:00:52
Those chip should be fine. But it to be confirmed with a good working programmer.

D@nno Posted - 01/16/2008 : 14:28:30
My multimeter is working and those values were with usb power only. Will the chips I tried programming still be good?

Thanks for the reply, Dan
ZLM Posted - 01/16/2008 : 14:00:11
If the voltage is that high, then the programmer is broken. Do not program any chip.
Make sure your voltage meter is working correctly.

Use USB power only and test again.

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