The solder resist ( which is usually green in color ) seems to have eroded due to sparking. did that cause the short ciruit? do I rejoin the burnt edges?
2006-10-27 18:22:31 · 3 answers · asked by Buman Heing 1 in Science & Mathematics ➔ Engineering
Even the glass epoxy material (G-10), when burned, will be conductive. If the board is made with lesser material (as most consumer products are), they will be conductive.
The only way to fix it, is to take a xacto knife (or very sharpe knife) and scrape it until all the burned layers are gone. Be careful if it is muti-layered board. In those cases, they may not be fixable.
If you end up cutting the traces or find out that traces are melted, then you need to scrape off the resist from good part, then use some small guage wire to join the broken traces.
2006-10-27 18:32:58 · answer #1 · answered by tkquestion 7 · 0⤊ 0⤋
Most likely the short circuit has been caused by a faulty component in the circuit. It is difficult to answer this due to the many variables involved (type of circuit, voltage involved, etc.). If you reconnect the foil that has burned away without first determining what caused the problem, you will be wasting your time, and possibly cause a fire. First look at the trace side of the board closely to see if there are any short circuits there, then begin checking the components for shorts.
2006-10-28 01:47:37 · answer #2 · answered by JD12201 2 · 0⤊ 0⤋
A short circuit on a pcb is not caused by an open circuit.
The sparking and erosion that opened the printed circuit that you can see is a result - not the cause.
Until you find the component or cause of the short circuit, the burned edges you put together will only spark and burn open again - possibly causing further damage to the PCB and other associated components..
2006-10-28 01:34:47 · answer #3 · answered by LeAnne 7 · 1⤊ 0⤋