bonxer
New Member
I just made an El Cheapo programmer with the board supplied with Myke Predko's PIC book. I've tested for continuity and accidental bridges, and everything seems to check out. When I plug in a 16.8v 300mA supply, the output of the 7812 regulator comes out anywhere between 10.5 to 11.3 volts. :shock: This seems to be the opposite effect that should be occurring, the two diodes should be causing the voltage to rise UP to 13 or above. All of the components (resistors, caps, regulator) become extremely hot to the touch within seconds of plugging it in. I have not yet connected it to a computer as something seems really wrong.
Anyone ever experienced this? Any suggestions before I go through and desolder all the components to test them individually :?:
Anyone ever experienced this? Any suggestions before I go through and desolder all the components to test them individually :?: