Nws Yooj Yim Li Cas Los Kho Cov Khoom Siv Hluav Taws Xob ntawm Kuv Lub Tshuab Ntxhua Khaub Ncaws: 5 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:29

Vim li cas?

Vim tias kuv yog Tus Tsim Kuv nyiam kho kuv tus kheej cov khoom, uas qee lub sijhawm muaj teeb meem vim tias lawv tsis ua haujlwm thaum kuv pom qee lub sijhawm los txheeb xyuas lub tswv yim ntawm kev daws teeb meem. Kho ib yam dab tsi feem ntau yog yooj yim thiab lom zem, tab sis nrhiav qhov ua rau muaj teeb meem tuaj yeem yog qhov nyuaj. Cov ntawv qhia no yog rau cov uas xav ua kev lom zem ntawm kev kho cov cuab yeej siv khoom siv tab sis xav tias lawv tsis muaj txuj ci thiab nyuaj heev.

Yog vim li cas los kho qee yam

1. Txuag nyiaj - tsis yog qhov kuv nyiam tshaj vim kuv tau siv sijhawm txuag nyiaj…
2. Tsis muaj pov tseg - Lub sijhawm pos -Ntiaj Teb Tsov Rog Zaum II tau tsim kev lag luam raws li kev ua tsis tiav ntxov, nkim thiab ntau lawm. Thiab peb paub tias nws ua dab tsi rau peb cov neeg ntiaj teb uas tsis muaj zog.
3. Nws lom zem heev thiab peb kawm ntau yam!

Cov cuab yeej los kho

Ntawm qhov xwm txheej no kuv xav tau kho Indesit WD105T tshuab ntxhua khaub ncaws txij xyoo 2001! Thaum kuv pib ntxuav lub tshuab pib ua haujlwm, ntim dej tab sis tam sim ntawd tom qab ntawd pib tso dej tawm thiab lub pob qhov rooj pib tig thiab LED pib ntsais muag tsis tso tseg.

Kauj Ruam 1: Qhib Lub Tshuab thiab Xeem Cheeb Tsam

Ceeb toom

Ua ntej qhib ib qho khoom siv hluav taws xob nco ntsoov tshem tawm los ntawm lub hwj chim tseem ceeb. Xyuas kom koj tau ua haujlwm raws txoj cai kev nyab xeeb kom tsis txhob muaj hluav taws xob raug xwm txheej. Sab hauv txhua lub tshuab hluav taws xob siv los ntawm lub zog AC tseem ceeb muaj cov khoom siv hluav taws xob uas tswj hwm qhov hluav taws xob siab tom qab tshem lub tshuab los ntawm cov khoom tseem ceeb. Ceev faj ntawm kev txheeb xyuas cov peev txheej no thiab xyuas kom lawv raug tso tawm kom nyab xeeb ua ntej pib ua haujlwm.

Qhib lub tshuab thiab kuaj cov khoom

Tom qab qhib lub tshuab, nyob rau sab saum toj thiab nraub qaum, kuv tau sim txhua qhov khoom siv hluav taws xob, txhawm rau txheeb xyuas yog tias lawv nyob qhov twg zoo. Qhov tshuab muaj ntau hom kev tivthaiv:

1. solenoid li qub
2. cua sov resistors
3. lub cav
4. tiv taus qhov kub thiab txias
5. siab hloov

Koj tuaj yeem sim txhua yam ntawm cov khoom no tsuas yog ntsuas qhov tsis kam ntawm cov davhlau ya nyob twg, siv qhov ua haujlwm ohmmeter los ntawm multimeter. Ntawm kuv cov ntaub ntawv txhua qhov khoom siv zoo li yuav zoo thiab tus neeg ua txhaum poob rau ntawm lub rooj tswj hwm hluav taws xob.

Kauj Ruam 2: Txheeb Xyuas Pawg Thawj Coj Hluav Taws Xob

Lub rooj tsav xwm hluav taws xob tau yooj yim rau disassemble thiab tshuaj xyuas tam sim ntawd kuv pom tias ob txoj kab ntawm PCB uas tau yaj. Zoo! Kuv pom qhov teeb meem! Phem! Ib yam dab tsi raug hlawv: (Tom qab ntawd kuv ua raws cov kab ntawv thiab pom cov khoom siv hauv Circuit Court thiab pom "cov khoom dub" (TO-92 hom pob) uas tau tawg.

Qhov ua rau ua tsis tiav

Pawg thawj coj no ua haujlwm tau 12 xyoos, tab sis teeb meem tsim qauv ua rau qhov ua tsis tiav. Ob txoj kab tau ze heev. Qhov kev tshem tawm ntawm ob txoj kab no tsis txaus thiab nrog cov av noo thiab vim tias lub npog ntsej muag ntawm PCB no tsis zoo, cov dej tam sim no ua rau luv Circuit Court ntawm qhov chaw tsis muaj zog. Qhov nthwv dej ua rau ob txoj kab tawg thiab ua rau "dub tivthaiv" ua qhov siab heev tam sim no uas ua rau cov khoom siv ua kom sov sai heev thiab tawg! uas nqus lub zog ntawm cov hluav taws xob tam sim no thiab zam tias cov khoom siv hluav taws xob hlawv hluav taws xob, tshwj xeeb yog IC's uas muaj kev nkag siab ntau dua li lwm cov khoom siv ntse thiab nyuaj rau nrhiav hloov.

Kauj Ruam 3: Txheeb Tus Txheej Txheem Hlawv thiab Kuaj

Feem ntau ib feem tiv thaiv ntawm TO-92 casing yog transistor, tab sis qhov xwm txheej no tom qab saib ze rau lwm cov khoom sib xws hauv pawg thawj coj saib kuv pom qhov siv no: Z0607 Tom qab googling "Z0607 cov ntaub ntawv" Kuv pom daim ntawv no.

Yuav ntsuam xyuas Triac li cas?

Kuaj tus tiv thaiv yog ib qho yooj yim. Koj tsuas yog yuav tsum siv lub ohmmeter muaj nuj nqi ntawm koj lub multimeter los nyeem tus nqi thiab paub meej tias yog raws li cov xim coding kab txaij ntawm cov tivthaiv, tab sis kev xeem "tivthaiv dub" yog qhov nyuaj dua, puas yog? Yooj yim heev. Ntawm qhov xwm txheej no kuv tau muaj hmoo ntawm kev paub cov ntaub ntawv siv thiab pom cov ntaub ntawv nrog pinout. Testing Triac yog qhov yooj yim. Koj tsuas yog yuav tsum ua raws cov theem no.

Kauj Ruam 4: Kho Lub Rooj Tswjhwm Saib Xyuas Hluav Taws Xob

Kuv muaj hmoo heev thiab tsis tas yuav siv nyiaj dime ntawm kev kho:)

Lub Circuit Court uas tau hlawv yog lub teeb liab tso tawm thiab pom tias kuv tsuas yog yuav tsum tau hloov lub Triac tawg, tab sis kuv pom tau tias lub rooj tsavxwm no muaj 6 lub vojvoog zoo sib xws thiab ib qho ntawm lawv tsis tau siv. Qhov no yog hmoov zoo vim kuv tau pom tias lub txuas txuas tau ploj qee cov xov hlau. Ib qho hluav taws xob tso tawm tsis tau siv rau ntawm lub tshuab qauv no!

Ntawm thawj daim duab koj tuaj yeem pom, sab hauv lub thawv liab, cov khoom siv ntawm ib qho channel tso tawm. Los ntawm sab saum toj, koj muaj lub jumper los ntawm IC cov zis digital. Tom qab ntawd muaj ob peb lub polarization resistors, uas txuas nrog lub rooj vag ntawm Triac. Cov tivthaiv xiav yog MOV (Hlau-oxide Varistor) ua ke nrog T1 thiab T2 pins ntawm Triac. Ntawm tus lej thib ob koj tuaj yeem pom tias kuv tau desoldered ib lub jumper thiab hla txuas txuas ntxiv ib qho los siv qhov tso tawm Triac Circuit uas yog tsis xav tau siv. Tom qab ntawd kuv hloov xov hlau ntawm lub txuas rau lub tshuab ntxhua khaub ncaws. Thiab qhov ntawd yog nws! Kuv tau txau cov ntsiab lus soldering nrog cais cov kua roj vanish. Txuas txhua yam, hla tus ntiv tes thiab txhawb lub tshuab thiab nws tau ua haujlwm! Qhov no yog qhov kuv tau kho lub tshuab hluav taws xob ntawm kuv lub tshuab ntxhua khaub ncaws yam tsis siv tus npib tsib xee:)

Kauj Ruam 5: Cov Cuab Yeej Koj Xav Tau

Koj tsis xav tau ntau yam cuab yeej los kho qhov no.

1. Digital Multimeter (Kuv tseem siv kuv thawj lub digital multimeter, Kiotto KT-1990CX nrog 25 xyoos!)
2. Tweezers
3. Soldering Hlau
4. Rho tawm cov kua roj vanish