hello friends we are in a new article with a microwave oven that presents the classic flaw in some of its keys this is a repetitive failure in all types of microwave Let's do a test we connect the oven to the current and we'll see that some keys do not work yes, yes the start does not nor the stop, stop or restart, here says restart but this is the delete key in other microwave ovens the zero either and some others yes let's proceed to review the membrane in this front part without uncovering the microwave since nothing else is 3 keys apparently is on the right side the zero and the start key which is the most important to be able to detach without problems the membrane layers we will use a hair dryer and we will apply enough heat until the glue softens that binds these layers and we will remove them slowly here we have already raised the he front part with the middle one I separated them and hold them with small ribbons to be able to check the tracks well and effectively here we find a damaged track I will point out with a laser there exactly there we see one and two tracks damaged so let's restore them

I'm going to tell you how we're going to do it let's just cut some small aluminum foil strips and we're going to stick them with tape of this type exactly on the line where it goes, the other side too and we're going to put it back together and do the test before restoring these two remaining lines let's check what that our multimeter is measuring continuity there we see which is measuring continuity and we're going to check that there is no between this line and this it does not measure and … on this side ……. and joining the tips ….. there it is now we to see if I can, because I can not manipulate the cell phone and the tips with just one hand there is we see that they are open we are going to let's restore those last two and we continue to restore those tracks this is a simple method this is a stretch of aluminum foil and we will cut some small strips about the width of the damaged tracks This is a small strip of aluminum and we cut it let's cut the stretch we need and to do it easily without complications we are going to cut a stretch of transparent tape and we will place the aluminum strip on the side that has glue so uniform that is without folds and there we have a small stretch and we can place it already instead we adhere it well we are going to press a little to make good contact and there I am instead we have all the tracks restored before proceeding we will measure continuity again on the restored tracks here we have that the multimeter is marking and we are going now to measure the tracks that we just restored from this point to this there we see that ……

. nor the there is and now from this point to the other track and between this and this one there must also be continuity … there it is now we are going to proceed to assemble and make the test before adhering, we clean the contact points with isopropyl alcohol because the glue can cover them and not make contact let's clean one by one on one side and …………. on the other only at the points where they will contact to remove possible waste of glue now if we remove the tapes with the that we had fastened the front and we re-apply hot air to adhere it again before doing the final test I want make an observation The utmost care must be taken when remove the layers from the membrane and the necessary heat must be applied so that the glue with which these parts are attached It softens well and can be detached without causing damage or more damage to printed carbon lines or tracks these tracks that were damaged surely they were already cracked When they were removed, the small sections that were seen … to detach without in the article and I just tell you that it must be done with hot air since not doing it what will cause more damage to those tracks and then it will be practically impossible to restore them let's continue with the final test well let's do the final test now the oven is connected to the outlet let's put a minute and we're going to give it on the start key which is the one that did not work there we have the oven working let's put a pause restart and well there we have that this is a good method, if not the best to restore the open clues carbon printed on either the membrane or it can also be in the connector of this keyboard that goes to the card well that's all In this article I hope it's useful and see you in the next article remember that I am Jesus Lopez many thanks for your attention