Cov txheej txheem:
- Kauj Ruam 1: Qhib Xbox Chaw Taws Teeb - Txheeb Xyuas IC thiab Txheeb Xyuas Electrolytic Zoo
- Kauj Ruam 2: Tau Cov Cheeb Tsam - Nrhiav Cov Capacitor Ntxiv rau Siv thiab Qee Cov Hlau
- Kauj Ruam 3: Ntxiv Cov Capacitor Ntxiv rau IC
- Kauj Ruam 4: Tiav Tawm - Ntxuav, Xeem thiab Sib Sau Ua Ke
Video: Yuav Kho Li Cas Xbox Kev Tswj Chaw Taws Teeb - Decoupling Capacitor Fix: 4 Cov Kauj Ruam (nrog Duab)
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26
Cov lus qhia no tau sau ua lus teb kom muaj qhov tawg Xbox Chaw Taws Teeb.
Cov tsos mob yog tias cov chaw taws teeb zoo li tua hluav taws OK. Thaum kuv taw tes rau cov chaw taws teeb ntawm lub TV txais tsuas yog rau lub hom phiaj ntsuas, Kuv tuaj yeem pom lub teeb liab liab ci ntawm lub teeb tau txais tab sis thaum taw cov chaw taws teeb mus rau Xbox tus txais tsis muaj lus teb rau ib lub pob nyem. Yog li ib pliag dhau los kuv tau rhuav tshem cov chaw taws teeb thiab txuas nrog Infrared tso zis rau Oscilloscope. Lub teeb liab los ntawm qhov muaj txiaj ntsig tshwj xeeb tshaj yog lub tsheb ciav hlau suab nrov yog li kuv xav tias qhov kev txiav tawm tsis zoo ntawm PCB. Qhov sib ntxiv ntawm qhov me me saum lub tshuab hluav taws xob nyob ze rau tus pin fais fab uas lub roj teeb hluav taws xob tau muab rau IC kho qhov teeb meem. Koj tuaj yeem khaws lub capacitor los ntawm lub xov tooj qub LOS YOG USB lo raws li kuv tus piv txwv. Koj tuaj yeem pom cov khoom siv hluav taws xob ntxiv hauv daim duab hauv qab no. Nws tau sawv ntsug ntawm lub hwj chim tus pin ntawm IC. Cov xaim ntsuab ntxiv txuas nrog 0V (Hauv av) ntawm PCB. Kuv xav tias qhov teeb meem tiag tiag yog nrog kev xaiv tsis zoo ntawm kev txiav cov capacitors. Xbox tswj chaw taws teeb tsuas muaj Electrolytic uas nquag xau thiab tseem tsis nyob ze txaus rau IC vim yog lub tshuab ua haujlwm ntawm kev sib dhos ua ib sab PCB. Yog li ntawm no yog kuv cov kauj ruam txhawm rau kho cov chaw taws teeb LOSSIS koj tuaj yeem saib hauv youtube https://www.youtube.com/embed/CKqQZv4i4x0Note, qhov kev txhim kho no tuaj yeem ua haujlwm zoo rau lwm cov chaw taws teeb uas muaj qhov tsis zoo los yog lub tshuab hluav taws xob xau.
Kauj Ruam 1: Qhib Xbox Chaw Taws Teeb - Txheeb Xyuas IC thiab Txheeb Xyuas Electrolytic Zoo
Koj yuav xav tau tus ntswj ntsia hlau thiab rab riam los qhib lub chaw tswj hwm yas chaw taws teeb.
Muaj ob qhov chaw ntawm ob sab ntawm cov chaw taws teeb kom ntxig cov ntsia hlau ntsia hlau. (Saib duab). Thaum koj tau nyem qhib lub yas ob sab koj yuav xav tau rab riam los ua haujlwm nrog txhua sab ntawm cov yas kom tso thiab sib cais ua ke cov yas sib dhos. Nrog Lub Rooj Sib Tham qhib nws yog lub sijhawm zoo los tshuaj xyuas tus lej IC. Kuv vam tias qhov no yog IC nkaus xwb uas Xbox cov neeg tau ua tab sis koj tuaj yeem tshawb xyuas nws ntawm no. Tus lej IC tus lej yuav tsum zoo ib yam sib nrug ntawm kev tsim cov lej thiab cov nyiaj hnub tim. Ib zaug ntxiv saib daim duab uas IC nyob hauv qab lub tsom iav. Tam sim no tseem yog lub sijhawm zoo los tshuaj xyuas lub xeev Electrolytic Capacitor (Tus Nqi - 47uF 25V). Txheeb xyuas rab phom/cov tshuaj ua kua hauv qab. ib ncig ntawm cov ceg tivthaiv. Kuv lub capacitor tau ua tsis tiav tab sis kuv tau tso nws tseg thiab tsuas yog ntxiv cov capacitor ntxiv. Daim duab nrog lub hau ntswj taub hau taw rau lub capacitor qhia koj tias nws yog leej twg. Koj tuaj yeem hloov Electrolytic Capacitor tab sis nws feem ntau yuav tsis rov ua dua. Kev txhim kho saum npoo capacitor kho peb yuav ntxiv tsis muaj teeb meem to.
Kauj Ruam 2: Tau Cov Cheeb Tsam - Nrhiav Cov Capacitor Ntxiv rau Siv thiab Qee Cov Hlau
Lub tshuab hluav taws xob rau Xbox thaj chaw deb kuv tau siv yog qhov saum npoo.
Kuv pom kuv lub xov tooj qub tab sis tawg USB lo yog qhov zoo vim tias lawv muaj ob peb lub decoupling capacitors ze rau IC's ntawm PCB uas yooj yim txheeb xyuas thiab tshem tawm. Cov duab nrog cov kauj ruam no qhia txog lub capacitors los ntawm tus qub USB lo taw qhia los ntawm rab riam hniav. Tsis txhob txhawj xeeb ntau txog qhov tseeb ntawm tus nqi hluav taws xob no. Tus nqi zoo tshaj yuav nyob ib puag ncig 100nF tab sis feem ntau ntawm cov khoom siv tso rau ib puag ncig IC's yuav tsum nyob ze rau tus nqi ntawd. Nco ntsoov koj lub capacitor yog qhov ntxiv rau Electrolytic uas twb muaj lawm. Cov khoom siv hluav taws xob ntxiv nyob ze rau ntawm ceg ntawm IC yuav txhim kho kev txiav tawm. Txhawm rau kom lub capacitors tawm koj yuav tsum tso cov hlau txuas hla ob qho kawg ntawm lub capacitor kom koj sov ob hnub kawg ib txhij. Raws li cov laug yaj, koj yuav xaus nrog lub tshuab ntxhua khaub ncaws rau cov hlau txuas thiab koj tuaj yeem so nws tawm ntawm qhov taub nrog tus ntsia hlau lossis rab riam. Nrog lub Capacitor nqa kos tsis muaj cov laug txuas txuas nyob nruab nrab ntawm ob qho kawg ntawm lub capacitor. Koj tuaj yeem tuav lub Capacitor nrog tweasers thiab maj mam rov ua dua cov kab laug sab laug ntawm lub capacitor tsuas yog kom lawv huv. Tam sim no koj yuav tsum muaj koj lub capacitor ntxiv. Cov hlau ntsuab me me siv tsis muaj dab tsi tshwj xeeb. Tsuas yog cov xaim hluav taws xob zoo yuav ua uas tuaj yeem khaws tau los ntawm lwm yam khoom siv hluav taws xob tawg.
Kauj Ruam 3: Ntxiv Cov Capacitor Ntxiv rau IC
Tam sim no koj yuav ntxiv lub capacitor rau IC raws li daim duab.
Koj tuaj yeem pom cov kev sib txuas hluav taws xob koj tab tom ua los ntawm cov ntawv yooj yim daim duab schematic. Ib qho kawg ntawm lub tshuab hluav taws xob tau muab txuas rau tus pin/ ceg 6 ntawm IC thiab lwm qhov kawg ntawm lub capacitor yog txuas rov qab rau xoom volts/ hauv av ntawm PCB. Thaum tuav lub capacitor nrog tweasers, tus pin kub/ceg 6 ntawm IC nrog cov hlau txuas thiab thawb ib kawg ntawm lub capacitor rau IC ceg thiab tom qab ntawd tshem cov hlau thiab tso kom txias. Lub capacitor yuav tsum sawv ntsug ntawm ceg ntawm IC. Tam sim no sov lwm qhov kawg ntawm lub tshuab hluav taws xob thiab ntsaws cov kab hluav taws xob me me rau nws thiab txuas rau lwm qhov kawg raws li daim duab. Nov yog xaim ntsuab nyob hauv cov duab. Tam sim no koj yuav tsum tau nruab lub capacitor. Yog tias koj muaj lub multimeter koj tuaj yeem ua qee qhov txuas txuas txuas ntawm kev sib txuas. Koj kuj tseem tuaj yeem ua kua nplaum rau lub tshuab hluav taws xob thiab xaim kom muab nws qee yam kev ruaj ntseg yog tias tsim nyog.
Kauj Ruam 4: Tiav Tawm - Ntxuav, Xeem thiab Sib Sau Ua Ke
Ua ntej ua tiav kev sib dhos nws yog qhov zoo los ntxuav cov PCB hloov pauv ntawm PCB.
Koj tuaj yeem so cov no nrog me ntsis ntawm tus ntsuj plig (methylated lossis dawb) ntawm paj rwb ntaub plaub. Ua siab mos siab muag nrog cov neeg no raws li lawv tsuas yog muab tso rau hauv! (Saib Daim Duab ntawm kev sib chwv sib txuas) Cov roj hmab keypad thiab cov yas sib dhos yog tias qias neeg tuaj yeem ntxuav hauv cov xab npum sov nrog txhuam txhuam qub thiab sab laug kom qhuav. Xyuas kom cov keypad qhuav tag ua ntej kuaj thiab rov sib sau ua ke. Tam sim no sim tawm koj qhov kev hloov pauv nrog kev sib dhos ib nrab. So cov PCB hauv qab yas los ua ke thiab tso roj teeb rov los. Tam sim no nyob ib ntus nrhiav cov roj hmab khawm khawm hla ntawm PCB khawm sab los tsuas yog so cov yas yas sib dhos saum toj kawg nkaus. Nias cov nyees khawm thiab tshawb xyuas cov lus teb ntawm Xbox. Vam tias raws li cov ntsiab lus no koj yuav muaj chaw ua haujlwm nyob deb thiab koj tuaj yeem rov sib sau ua ke dua. Yog tias tsis rov qab mus thiab txheeb xyuas koj cov laug txuas yog qhov raug thiab zoo. Kuj xyuas cov roj teeb yog tias cov chaw taws teeb tau pw ib puag ncig ntev. Nco tseg, qhov kev txhim kho no tuaj yeem ua haujlwm tau zoo nrog lwm qhov ua yuam kev deb tab sis koj yuav tsum thim rov qab tus kws tsim khoom sib txuas ntawm lub roj teeb xa mus rau IC kom paub qhov twg ntxiv cov capacitor. Ib txwm tsom mus tso lub capacitor kom ze rau IC li sai tau yam tsis cuam tshuam nrog ib qho ntawm cov yas sib dhos. Yog li tsis txhob tso lub chaw deb ntawd tam sim no …… mus !! Tsaug rau saib.
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