Hi, this is my first post, so be gentle ;). I just made myself a JDM programmer, but when I measure everything like = they say=20 on this page (http://www.ucapps.de/mbhp_jdm.html) I get some very funky = readings: MCLR: 8.6V (Off: -5.8V/-0.5V) (Should be: 14V) Vcc: 4.0V (Off: 0.42V) (Should be: 5V) Clock: 11.8V -> -7.7V (keeps lowering) (Off: -0.3V) (Should be: 5V +- = 1V) Data Out: 3.6V/0.1V/... (Off: -2.9V) (Should be: 5V +- 0.5V) Off means when I have the box unchecked in IC-Prog Hardware Test. As you can see everything is way off, sometimes I even get different = results=20 when I turn a signal on/off a few times. This makes absolutely no sense = to me. My PCB layout can be found here: = http://members.lycos.nl/anthonyvh/index.php?page=3Djdm I just checked everything and I can't find any errors. My Eagle files can be found here: = http://members.lycos.nl/anthonyvh/etc/jdm.zip My motherboard is an Abit IT7, so it doesn't have COM ports. I'm using a parallel + dual serial PCI card from VSCom = (http://vscom.de/produkte/vscom_210h_pci.html). I configured IC-Prog as shown on the UCapps site (first link). I'm using = WinXP (no service packs). Does anybody know why I get these readings? Thanks, Anthony Van Herrewege -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics