Chikonzero chikuru ndechekuti pane kukwenya pamutsetse wefirimu kana kuvharika pachiratidziro chakavharwa, uye iyo yakafumurwa mhangura pane yakagadzika chinzvimbo cheyakavharidzirwa anti-plating layer inoita kuti PCB iite pfupi-circuit.

Natsiridza nzira:

1. Mafirimu asina kunaka haafaniri kunge ane trachoma, scratches, nezvimwewo. Mushonga wefirimu wepamusoro unofanirwa kutarisa kumusoro kana wakaiswa, uye haufaniri kukweshwa nezvimwe zvinhu. Iyo firimu inofanira kushandiswa yakatarisana nefirimu pamusoro paunenge uchikopa. Ramba uri mubhegi remufirimu.

2. Kana uchibatanidza, firimu rezvinodhaka rinotarisana nePCB board. Paunenge uchitora firimu, shandisa maoko ako kuti uitore diagonally. Usabate zvimwe zvinhu kudzivirira kukwenya firimu pamusoro. Apo imwe neimwe firimu inofananidzwa kune imwe chiyero, unofanira kumisa kurongeka. Tarisa kana kuitsiva nemunhu akakosha, woiisa mubhegi rakakodzera remufirimu mushure mekushandisa.

3. Mushandi haafaniri kupfeka chero zvinhu zvekushongedza zvakadai semhete, zvishongo, nezvimwewo. Misumari inofanira kucheneswa uye ichengetedzwe yakatsetseka, hapana tsvina inofanira kuiswa pamusoro petafura yetafura, uye tafura yefurafura inofanira kuva yakachena uye yakatsetseka.

4. Iyo skrini inofanira kunyatsoongororwa isati yagadzirwa, kuti ive nechokwadi chekuti skrini haina kuvhurwa. Paunenge uchiisa firimu rakanyorova, kazhinji zvinodikanwa kuita ongororo isina kurongeka kuti uone kana paine marara anovharira skrini. Kana pasina kudhindwa kwenguva yakati rebei, chidzitiro chisina chinhu chinofanirwa kudhindwa kakawanda tisati tadhinda, kuitira kuti mutete muinki akwanise kunyungudutsa ingi yakaomeswa kuitira kuti chidzitiro chibude zvakanaka.