Hi, a few weeks ago i came here trying to make a JDM programmer works on my desktop pc, i received help from some ppl (and i appreciate it), however i was unable to make the programmer works, i then tried the simple jdm and some more and i finally gave up on jdm, so now im building the p16pro40 programmer but im having some problems >.<, i first built the programmer on my breadboard, when i finished i powered it with a 20v dc power supply, i instantly noticed that both red leds turned on(i dont think theyr suposed to be on when i just pluged the programmer w/o a pic inserted), and the green(wich its suposed to be the "power on" as far as i know) also turned on but very dim compared to the red leds, my first step was to check the regulators, so i tested both regulators separately, they were both working (+5v and +8v), then i conected them as shown in the p16pro40 schematic, and checked the voltages again, i noticed that once conected like that, the output of the 7805 goes from 5v to 5.9-6.2v, and the output of the 7808 goes to around 13.8v, are those voltages suposed to be like that on the programmer?, the datashets for the 7405 gates recomend to not exced the vcc from 5.25v.
BTW, im using a C3 at 220:mu: F at 50v, and 78M regulators.
BTW, im using a C3 at 220:mu: F at 50v, and 78M regulators.