How to repair a consumed electronic board (صيانة دايو)
This time I'm demonstrating how I repaired an electronic load up that appeared to be inconceivable, having consumed the printed
circuit, harming a few copper tracks and even the fiberglass of the PCB.
This plate is very straightforward. It doesn't have numerous parts, and they are additionally simple to get.
It was additionally simple to get a substitution plate, on the grounds that the manufacturer of the machine is about 80km away.
Likewise, they are able individuals and they improve machines than certain Germans.
However, the machine needed to deliver, so it was justified, despite all the trouble to repair it with the goal that it would work again in a brief span.
Another motivation to attempt is that my spirit breaks when I see such a small plate in the waste can ??
Repairing a consumed electronic board
The appearance is very terrible, and the smell far more atrocious, yet don't stress, since regardless it has arrangement.
How about we do it
The initial step is to desolder the triac, despite the fact that the welds were not in any case unmistakable.
Likewise, tin set aside a long effort to soften, in light of the fact that the charcoal layer used to make protection between the tip of the
welding iron and the patch.
The perfect for this situation is to apply a decent drop of tin.
The most noticeably awful that can happen is that you consume the segment or the printed circuit ??
Repairing a consumed electronic board
By expelling the triac, the profundity of the consume is better valued.
You can see the texture of the fiberglass, the spirit of the printed circuit.
Repairing a consumed electronic board
The two circuits are singed.
Repairing a consumed electronic board
Both have an estimation of 6A, and are associated in arrangement with the two current info wires.
Repairing a consumed electronic board (صيانة غسالات دايو)
One of the gaps to weld the triac was stopped up, so I attempted to clean it with a punch.
As the fiberglass had lost its plastic layer, the texture was fixed, leaving a pleasant gap. Along these lines, it is better
ventilated ??
A typical expert would have just surrendered, however I'm too freaky to even think about leaving now.
Repairing a consumed electronic board
Another outcome of the blast that was not seen with the triac mounted is the consume of the connectors.
Repairing a consumed electronic board
To more readily observe every one of the damages, a great cleaning is important.
What's more, the stains are not simply the result of smoke. There are additionally metal particles that have softened and anticipated
onto the plate, making a conductive track that could cause numerous issues.
With a paper impregnated in isopropyl liquor, I cleaned the plate altogether.
I additionally connected the liquor with the sprayer, liberally, to drag all the free particles.
Repairing a consumed electronic board
Presently even the cut copper tracks were better valued.
Repairing a consumed electronic board
With the multimeter in the most elevated range position (2MO), I quantified the opposition between the connector terminals.
Between two of them there were about 100kO. Awful news, in light of the fact that these tracks were cut, so that was the protection obstruction of the circuit. next blog