I am trying to install a additional parts to my car. when i remove the bare PCB with lcd from the head unit. i accidentally grounded the circuit board to the Metal plate, it create a little spark. now the LCD doesn't work. my question are1. is the circuit board fried?2. could it be just a blown fuse?3. after ground the board, could it be just burn resistor?
You fried something. You'd have to check out the board to find out how much. Probably not worth the shop time involved.
concorde develop into only grounded till the subject develop into fastened. in certainty the accident only exceeded off because of the fact a bite of metallic had fallen from yet another airplane. The burst tire hit the gasoline tank, yet that's no longer what brought about the crash. the burst brought about a marvel-wave, and located a weak spot, which develop into yet another place in the gasoline bit. yet yet that wasn't the subject. flames have been considered in the back of the concorde, what set this off? it develop into in certainty slightly the tire excellent the cable of the landing kit. this explains why the landing kit would desire to no longer be raised. the only clarification is the the loose cable striked the gasoline with the sparks, and brought about a hearth. The NTSB cautioned some transformations, and till then all concorde flights have been grounded. the advancements have been thicker rubber on the tires, strengthened landing kit cables, and a bulletproof furl tank. those style of have been easily fastened, yet concorde desperate to stop their corporation, as they have been given much less salary than for it to run. that's a very distinctive count to the 777, in certainty there is not any particular issue with the actually airplane, its hassle-free errors made by utilising the floor team and the flight engineers. i say they might desire to acquire greater coaching.
It is most likely one of the components on the circuit board. Most of these components are 5 or 12 volt parts and easily damaged. Check for a blown fuse but you will probably need the circuit board diagnosed and repaired. ps I am an electrical engineer with over 30 years experience in damaging circuit boards.
