Mukuita kweSMT chip processing,short circuitchinhu chinowanzoitika chisina kunaka chekugadzirisa chiitiko.The pfupi circuited PCBA redunhu bhodhi haigoni kushandiswa zvakajairika.Inotevera ndiyo yakajairika yekuongorora nzira yepfupi dunhu rePCBA board.

1. Inokurudzirwa kushandisa short circuit positioning analyzer kuti utarise mamiriro asina kunaka.

2. Muchiitiko chenhamba yakawanda yezvikamu zviduku, zvinokurudzirwa kutora bhodhi redunhu kuti richeke mawaya, uye ipapo simba pane imwe neimwe nzvimbo kutarisa nzvimbo dzine pfupi pfupi imwe neimwe.

3. Inokurudzirwa kushandisa multimeter kuti uone kana kiyi yedunhu ipfupi inotenderera.Pese painopedzwa SMT chigamba, IC inoda kushandisa multimeter kuona kana magetsi uye pasi zvakapfupika kutenderera.

4. Kuvhenekera kupfupi wedunhu network paPCB dhayagiramu, tarisa chinzvimbo pabhodhi redunhu uko kupfupi kunowanzo kuitika, uye teerera kana paine pfupi pfupi mukati meIC.

5. Iva nechokwadi chekunyatsopinza izvo zviduku capacitive components, zvikasadaro pfupi redunhu pakati pemagetsi uye pasi rinonyanya kuitika.

6. Kana paine BGA chip, nekuti akawanda emasolder majoini akafukidzwa nechip uye hazvisi nyore kuona, uye iwo ari multilayer circuit board, zvinokurudzirwa kugura simba rekupa imwe neimwe chip mukugadzira dhizaini. , uye vabatanidze nemagineti bead kana 0 ohm kuramba.Kana iri pfupi redunhu, kubvisa iyo magineti bead yekuona kuchaita kuti zvive nyore kutsvaga chip pabhodhi redunhu.