Hauv cov txheej txheem ntawm SMT nti ua,luv luvyog ib qho kev ua tsis zoo heev. Lub Circuit Court luv luv PCBA tsis tuaj yeem siv ib txwm. Cov hauv qab no yog ib qho kev tshuaj ntsuam xyuas rau luv luv Circuit Court ntawm PCBA board.

1. Nws raug nquahu kom siv lub ntsuas hluav taws xob luv luv los ntsuas qhov tsis zoo.

2. Nyob rau hauv cov ntaub ntawv ntawm ib tug loj tus naj npawb ntawm luv luv Circuit Court, nws yog pom zoo kom coj ib tug Circuit Court board txiav cov xov hlau, thiab ces lub hwj chim ntawm txhua cheeb tsam los xyuas cov cheeb tsam nrog luv circuits ib tug los ntawm ib tug.

3. Nws raug nquahu kom siv multimeter los xyuas seb qhov tseem ceeb ntawm Circuit Court yog luv luv. Txhua zaus SMT thaj ua kom tiav, IC yuav tsum siv lub tshuab ntsuas ntau los xyuas seb lub hwj chim thiab hauv av puas luv luv.

4. Teeb lub voj voog luv luv rau ntawm daim duab PCB, xyuas qhov chaw ntawm lub rooj tsav xwm Circuit Court qhov twg qhov luv luv Circuit Court feem ntau tshwm sim, thiab ua tib zoo saib seb puas muaj luv luv Circuit Court hauv IC.

5. Nco ntsoov ua tib zoo weld cov khoom me me, txwv tsis pub qhov luv luv ntawm cov khoom siv hluav taws xob thiab hauv av yuav tshwm sim heev.

6. Yog tias muaj BGA chips, vim tias feem ntau ntawm cov pob qij txha tau npog los ntawm cov nti thiab tsis yooj yim pom, thiab lawv yog cov kab hluav taws xob multilayer, nws raug nquahu kom txiav tawm lub zog ntawm txhua lub nti hauv cov txheej txheem tsim. , thiab txuas lawv nrog cov hlaws sib nqus lossis 0 ohm tsis kam. Nyob rau hauv cov ntaub ntawv ntawm luv luv Circuit Court, disconnecting lub magnetic hlaws dai yuav ua rau nws yooj yim mus nrhiav tau lub nti ntawm lub Circuit Court board.