Khaws Qhov Chaw Nto Mount: 6 Cov Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:30

Kuv yuav qhia koj li cas kuv cawm cov khoom siv los ntawm cov laug cam qub thiab khaws cia rau rov siv dua. Ib lub rooj tsavxwm los ntawm lub qub (tseem tshiab, uas yog) hard disk drive yuav tsum tau ua piv txwv. Daim duab (thaij siv kuv lub tshuab luam ntawv) qhia txog ib lub rooj tsavxwm, tom qab kuv tshem tus IDE txuas.

Kauj ruam 1: Desoldering

Kuv muaj cov yeeb yaj kiab qhia txog kuv tus txheej txheem. Kuv tab tom tawm tsam lub tantalum capacitor hauv cov vis dis aus, tab sis cov txheej txheem tib yam ua haujlwm rau txhua lwm yam khoom siv ib yam.

Ua ntej khoov ib daim ntawm tooj liab tuab (lossis lwm yam hlau uas tuaj yeem yaj tau) xaim kom haum ib puag ncig tivthaiv, thiab tiv tauj txhua yam nws cov ntaub qhwv. Muab nws tso rau hauv qhov chaw. Qhov no yog ua kom muaj kev sib cuag nrog cua sov. Tom qab ntawd ua kom sov cov xaim ntawm qhov chaw nruab nrab nrog koj cov hlau txuas, thiab nqa cov khoom tiv thaiv tam sim nrog tus tweezers. Los yog thawb nws tam sim ntawd siv tus pas txhuam hniav ntoo. Tsuas yog tsis txhob mob siab rau nrog lub laub lossis nws yuav ya hla chav thiab ploj mus ib txhis hauv cov crud uas npog (hauv kuv qhov xwm txheej li cas) hauv pem teb. Cov no yog qhov zoo tshaj plaws khaws rau hauv cov txiav ua npuas ncauj hauv lub thawv rau khaub ncaws. Tej yam me me, tau kawg.

Kauj Ruam 2: Tantalum Capacitors

Cov no yog cov electrolytic capacitors feem ntau pom ntawm cov laug cam saum npoo av. Lawv yuav tsum tau txuas nrog txoj kev puag ncig. Lub davhlau ya nyob twg zoo yog cim nrog cov qhab. Yog tias muaj ob tus lej ntawm nws, ib tus yog qhov ntsuas hluav taws xob thiab lwm qhov yog lub peev xwm.

Kuv thov txim, Kuv tsis muaj cov ntaub ntawv ntxiv ntawm kev txheeb xyuas lawv lwm yam tshaj li txheeb xyuas lawv hauv lub multimeter uas muaj ntau yam peev xwm. Lawv feem ntau zoo li cov cib me me nrog cov kab hlau nthuav tawm los ntawm lawv qhov kawg, quav hla hauv qab. Ntawm sab laug ntawm daim duab yog cov khoom siv hluav taws xob ceramic - MLCs - luv rau Multi Layer Ceramic - feem ntau lawv yog xim xim av, txawm tias kuv tau pom dub thiab dawb, thiab qhov kawg zoo li yog dipped hauv hlau. Feem ntau tsis muaj cov cim rau txhua qhov, yog li ntsuas tsuas yog txoj hauv kev cais lawv.

Kauj Ruam 3: Cov Khoom Siv Hluav Taws Xob

Ceramic Capacitors zoo li cov cib dipped hauv hlau ntawm qhov kawg. Cov xim ib txwm yog xim av.

Ferrite hlaws (lossis inductors) saib yuav luag zoo ib yam, zam tias cov no muaj qhov txuas ntxiv thiab sib nqus. Thiab dub. Daim duab qhia pom ib pawg ntawm cov khoom siv hluav taws xob, thiab ob peb inductors (sab laug sab laug). Yog tias koj tsis nkag siab lawm, tseem muaj ntau ntxiv tuaj.

Kauj ruam 4: Resistors

Nyob rau hauv sib piv rau capacitors, resistors yog ib qho yooj yim. Lawv feem ntau yog dawb nyob rau hauv qab, dub nyob rau sab saum toj thiab muaj tus nqi luam tawm ntawm lawv. Tus lej kawg yog tus lej zeroes. Thawj ob lossis peb tus lej yog cov lej ua ntej xoom. Hauv ohms. 560 txhais tau tias yog tsib caug rau ohms. 561 yuav yog tsib puas rau caum ohms. 564 yuav yog tsib puas rau caum Kilohms, lossis, ntau dua, qhia tsib tsib rau Meg. Cov no kuj tseem pom raws li arrays, ua piv txwv ntawm no yog 33 ohm arrays kuv tau siv ua ke vim kuv tsis pom muaj kev siv rau lawv. Thaum khaws cia hauv lub thawv, lawv zoo li ua raws Murphy txoj cai thiab txhua tus ntawm lawv yuav zais sab dawb. Thiab qhov koj xav tau yog qhov koj tig los zaum kawg. Vim tias thaum koj pom tus uas koj xav tau koj tsis txhob saib.

Kauj Ruam 5: Khaws Cov Tiv Thaiv

Yog li txoj hauv kev yooj yim tshaj plaws ntawm khaws cov resistors nti yog qhov no, uas kuv tau tsim tom qab kev sim ntau.

Thiab suav tsis txheeb lub sijhawm sib ntaus tawm tsam qhov xav kom yaug ntau hauv chav dej thiab tsis nco qab txog nws thiab ua qee yam muaj txiaj ntsig, zoo li ywg dej cov nroj tsuag. Thiab hais nyob zoo rau tus poj niam thiab menyuam. Nqa ib daim yas pob tshab, npaj me ntsis buggers ntsej muag rau ntawm nws thiab, tam sim ntawd, thaum lawv tsawg kawg xav kom nws, tso ib daim nplaum nplaum rau lawv. Qhov no tuav lawv tsis txav chaw thiab koj tuaj yeem saib xyuas lawv yooj yim dua, txheeb xyuas qhov koj xav tau, tom qab ntawd tev daim kab xev rov qab thiab tshem tawm qhov ntawd nrog tus txhuam. Lwm tus yuav nyob twj ywm rau daim kab xev.

Kauj Ruam 6: Diodes, Transistors thiab ICs

Diodes thiab transistors feem ntau tuaj ntim hauv pob SOT. Qhov no yog "pob ntawv me me transistor" pob, nrog peb tus coj.

Yog li cov cuab yeej nrog peb tus coj zaum ntawm lub rooj zaum yuav yog diode. Nws yuav yog transistor. Los yog nws yuav yog kev sib koom ua ke, zoo li peb lub davhlau ya nyob twg qhov ntsuas hluav taws xob. Kev soj ntsuam me ntsis nrog lub ntsuas ntsuas (tuav qhov khoom nrog lub croc clip) feem ntau yuav qhia koj seb nws puas yog diode, lossis npn lossis pnp transistor. Cov kaus poom me me tuaj yeem siv los khaws cia. Ib yam uas muaj ntau ceg yog feem ntau yog kev sib koom ua ke. Los yog ib qho resistor array. Kuv pom tias siv lub vintage IC cuam tshuam nrog poring dua cov ntawv txheeb, nrhiav cov khoom, thiab tsim ntau yam ua haujlwm, thiab qhov kawg tshwm sim yog qee qhov gizmo uas ua qee txoj haujlwm qub tsis zoo, uas yog vim li cas pawg thawj coj ntawd tau xaus rau hauv cov khoom pov tseg. Kev rau siab tsuas yog tsis tsim nyog nws. Tab sis kuv khaws cov uas kuv tshem tawm, vim tias lawv tuaj yeem ua haujlwm tau ib hnub - los tsim ua cov duab puab. Yog li - pib desoldering, thiab muaj kev lom zem.