Chitsulo chizikhala chosalala ndipo chisachite dzimbiri. Kupaka sikuyenera kung'ambika kapena kung'ambika. Chophimba cha pulasitiki chisakhale chofanana, chopanda ming'alu kapena kuwonongeka.Kutsekemera kwa magawo osiyanasiyana opangira magetsi kuyenera kukhala ndi ntchito yamagetsi oyesera ndi pamenepo
palibe punctures pa izo.
90% ya pamwamba idzaphimbidwa ndi solder.Popanda ma deformation a maziko,
akhoza kukwaniritsa makina, ntchito zamagetsi.Kuchita popanda kutsekereza
chodabwitsa, batani amalola kuvala pamwamba