Thaum kho cov cuab yeej siv, feem ntau nws yuav tsum tau hloov cov microcircuits. Microcircuits tuaj nyob rau hauv cov pob DIP - cov qauv qub thiab SMD - qhov no yog cov pob khoom siv niaj hnub, me dua DIP, rau soldering ncaj qha rau cov kab ntawm cov ntawv luam tawm hauv Circuit Court. Nws tshwm sim hais tias lub microcircuit tsis yog soldered rau cov txiag, tab sis ntxig rau hauv lub qhov tshwj xeeb. Hauv qhov no, nws qhov hloov pauv yog qhov yooj yim heev. Tab sis feem ntau, cov microcircuit tsuas yog soldered nrog cov electrodes rau cov ciav hlau PCB. Tsis tas li ntawd, microcircuits yog qhov muaj zog loj, piv txwv li, 4-channel power amplifier rau lub xov tooj cua tsheb.
Nws yog qhov tsim nyog
soldering hlau, solder, soldering flux, microcircuit tshiab, phau ntawv qhia microcircuit, xaws rab koob
Cov Lus Qhia
Kauj ruam 1
Txhawm rau hloov cov microcircuit, koj yuav tsum xub nrhiav nws hom. Txhawm rau ua qhov no, koj yuav tsum nyeem nws tsim qauv ntawm kis. Muaj qee lub sijhawm ib feem ntawm cov teebmeem yuav kub hnyiab vim muaj ntau dhau lossis tshaj cov khoom siv voltage thiab nws tsis tuaj yeem nyeem lub npe, tom qab ntawd daim duab ntawm lub cuab yeej no xav tau. Yog tias tsis muaj Circuit Court, rau ntawm ib daim ntawv sau kos duab schematic daim duab ntawm kev khi ntawm cov hluav taws xob ntawm lub microcircuit no thiab, siv phau ntawv siv, nrhiav tau cov ntawv ua tau.
Kauj ruam 2
Tam sim no koj yuav tsum tau tshem tawm cov microcircuit qub. Yog tias lub microcircuit uas muaj zog txuas nrog lub rhaub hluav taws xob yog evaporated, tom qab ntawd ua ntej tshem tawm nws los ntawm lub rooj tsavxwm, koj yuav tsum txiav tawm ntawm qhov ua kom sov. Peb nco ntsoov ntawm sab twg tus yuam sij tau nyob ntawm microcircuit thiaj li yuav kho qhov microcircuit tshiab kom raug. Muaj ntau txoj hauv kev los tshem tawm microcircuits los ntawm cov ntawv luam tawm hauv Circuit Court:
-Txoj kev tshem tawm ntawm txhua qhov hluav taws xob nrog daim hlau.
-Txhua txhua qhov electrode cais, cais cov electrode thiab soldering ncoo nrog rab koob koob ntawm lub taub uas tsim nyog. Hauv qhov no, ua ntej, ham yog melted nrog hlau soldering, thiab tom qab ntawd ib rab koob txhaj tshuaj tso rau ntawm qhov electrode. Los ntawm txoj kev maj mam tig lub koob, ntxig rau nws rau hauv qhov taub mounting ntawm PCB. Qhov no ua tiav nrog txhua qhov hluav taws xob ntawm microcircuit.
- Tshem tawm cov cam nrog desolder - tuab cov pob ntawm cov nquag nquag xaim. Lub desolder sau cov quav, tawm qhov tsawg kawg nkaus rau ntawm lub rooj tsavxwm, thiab tom qab ntawd, koj tuaj yeem tshem tawm cov microcircuit ntawm nws qhov chaw ruaj khov. Qhov no yog txoj kev nrov tshaj plaws hauv feem ntau cov neeg siv khoom hluav taws xob kho khw.
-Xaj los ua ib ntu ntawm cov ntawv luam tawm Circuit nrog cov cua kub phom rau cov kub yaj ntawm lub txos, feem ntau 275 degrees.
-Qhov kev pab ntawm lub pob ntseg tshwj xeeb rau cov hlau soldering, uas tso cai rau koj kom sov txhua qhov electrodes ib zaug. Txoj kev no tsis nrov vim yog kev ua haujlwm loj heev ntawm microcircuits nrog ntau qhov sib txawv.
Kauj ruam 3
Txav tawm, txoj hauv kev tsim nyog, microcircuit, koj yuav tsum ua tib zoo soj ntsuam nws cov strapping rau ntawm lub rooj tsavxwm. Saib tsam qee tus lwm feem tsis tawm. Muaj ntau zaus thaum, vim qhov cub tawm me me resistor, thaum muab tua, microcircuit tsis ua haujlwm.
Kauj ruam 4
Tom qab ua kom paub tseeb tias txhua yam yog nyob rau hauv kev txiav txim, lub hwj huam muab hluav taws xob kom raug qhov tseeb, qhov hluav taws xob seem ntawm kev ua haujlwm tau ua haujlwm, koj tuaj yeem teeb lub microcircuit tshiab. Txhawm rau ua qhov no, koj yuav tsum tshem tawm cov seem ntawm cov roj hlawv ntawm cov microcircuit qub, yog tias muaj. lawv muaj conductive nrog ib daim ntaub tais hauv cawv.
Kauj ruam 5
Siv ib rab koob xaws nyias, xyuas cov patency ntawm lub qhov. Peb sov lub qhov tsis muaj qhov txhab nrog hlau uas siv hlau thiab siv ib rab koob los txhawm rau lub qhov hauv lub kav hlau.
Kauj ruam 6
Peb nruab lub microcircuit rau ntawm lub rooj tsavxwm kom tus yuam sij rau sab xis. Yog tias lub microcircuit raug ntsia rau ntawm lub tshuab hluav taws xob, peb ntsia nws rau lub tshuab ntsuas pa.
Kauj Ruam 7
Peb muag txhua electrode nyias. Nyob rau hauv cov ntaub ntawv no, nws yog qhov yuav tsum tau ua kom sov cov lus soldering zoo thiaj li hais tias solder yuav tuav cov electrode thiab lub ntsuas phoo thiab tib lub sijhawm tsis ncu lub microcircuit. Cov sij hawm zoo tshaj plaws cua sov rau cov kab hluav taws xob lam yog 2 vib nas this. Thaum soldering, nws raug nquahu kom siv cov rosin-based flux lossis rosin nws tus kheej. Koj tuaj yeem siv cov hlau cam nrog flux thov rau nws qhov chaw.
