MCUmall EPROM BIOS Chip Burner Forum
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 Using The Enhanced/Dual power Willem Programmer
 willem PCB5-E VPP problem
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gogos106

2 Posts

Posted - 01/06/2014 :  14:39:13  Show Profile  Reply with Quote
hi....
i have a problem with my willem pcb5-e.....
i set jumpers to 12.5v and then I checked out the voltages...
vpp=15.0v

when i set jumpers to 15v my voltages are
vpp=25.4v

...jumpers to 21v....
vpp=18v
...jumpers to 25v
vpp=29.7

what is going wrong???
Reply #1

ZLM

2926 Posts

Posted - 01/15/2014 :  15:44:33  Show Profile  Reply with Quote
Installed wrong voltage control resistor.
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