bought a paslode portable framing nail gun at a good price from a friend. he said it worked when he got it but it has been sitting for awhile. Battery was beyond charging, I replaced it. bought a new gas cylinder for it and some nails. It has a led in the handle that is supposed to light up when you plug in the battery but is does not come on. I have tried to clean the terminals but they are hard to get to. I am thinking the electronics part has gone bad but no way to test that I know of. I can get the part online, $40 dollars or more. between the cost of the battery and what I paid for it($50) I have $70 in not including the gas cylinder and the nails. Has anyone had any experience repairing one of these? If I buy the part and that fixes it then I will have a portable framing nailer for about $100. I am not a carpenter, I am 65 and have lung cancer so I am never going back to work. I do have a degree in electronic engineering (aas), but would like to have this working. If I get working it will eventually go to my son. Any advise is greatly appreciated in advance.