Cov khoom siv khoos phis tawj siv tus nqi kwv yees li US $ 30, tab sis cov khoom siv hluav taws xob tuaj yeem ua haujlwm koj $ 100 lossis ntau dua! Txuag nyiaj los ntawm kev hloov pauv ATX cov khoom siv hluav taws xob pheej yig uas tuaj yeem pom hauv txhua lub computer uas raug pov tseg. Qhov haujlwm DIY no yuav muab lub hwj chim rau koj uas ua rau +3.3V, +5V, thiab +12V tam sim no, nrog rau qee qhov kev xyaum sib sau ua ke cov khoom siv hluav taws xob yooj yim. Nws yuav tsis tsim lub zog zoo ib yam uas tus qauv ntsuas hluav taws xob yuav siv, tab sis nws yuav txaus rau kev sim thiab siv cov khoom siv hluav taws xob yooj yim. Qhov wikiHow qhia koj yuav hloov pauv ATX fais fab mov rau hauv lub chaw tso khoom siv fais fab lab.
Cov kauj ruam
Ntu 1 ntawm 2: Npaj Lub Hwj Huam
Kauj Ruam 1. Tau txais ATX lub computer fais fab mov
Saib hauv online lossis ntawm koj lub khoos phis tawj hauv koj cheeb tsam rau ATX khoos phis tawj siv hluav taws xob. Xwb, koj tuaj yeem rhuav tshem lub khoos phis tawj qub thiab tshem lub hwj chim los ntawm rooj plaub. Qee cov qauv ATX qub suav nrog ntxiv -5 V kab. Qee lub vev xaib online koj tuaj yeem yuav ATX lub zog xa khoom suav nrog cov hauv qab no:
- Newegg.com
- Amazon
- www.atxpowersupplies.com
Kauj Ruam 2. Tshem lub hwj huam hluav taws xob los ntawm lub hwj chim thiab tua
Tsis yog txhua lub zog siv hluav taws xob muaj lub zog hloov pauv, tab sis nws feem ntau pom nyob tom qab. Tsis tas li, nco ntsoov tias koj tsis tau tsaws av kom qhov hluav taws xob tseem tshuav tsis ntws los ntawm koj mus rau hauv av.
Kauj Ruam 3. Tshem tawm lub hwj chim los ntawm lub khoos phis tawj
Ua ntej tshaj, tshem cov ntsia hlau uas txuas lub hwj chim rau lub khoos phis tawj computer. Tshem cov xov hlau los ntawm lub motherboard thiab lwm yam khoom siv hauv computer. Tom qab ntawd tshem tawm cov khoom siv hluav taws xob.
Kauj Ruam 4. Tshem tawm lub hwj chim los ntawm kev tso nws zaum tsis txuas rau ob peb hnub
Qee tus neeg hais kom txuas 10 ohm resistor ntawm cov xaim dub thiab liab (los ntawm cov xov hluav taws xob ntawm sab tso tawm), txawm li cas los xij qhov no tsuas yog lav kom tso cov hluav taws xob qis hluav taws xob tso tawm ntawm qhov tso tawm - uas tsis txaus ntshai pib nrog! Nws tuaj yeem tawm ntawm lub tshuab hluav taws xob hluav taws xob tau them ntau, ua rau muaj xwm txheej txaus ntshai - lossis tseem ua rau tuag taus - qhov xwm txheej.
Yog tias koj xav tias lub zog fais fab puas lawm, tsis ua siv nws! Yog tias nws puas lawm, kev tiv thaiv hluav taws xob yuav tsis ua haujlwm. Feem ntau, kev tiv thaiv hluav taws xob yuav maj mam tso tawm cov hluav taws xob hluav taws xob siab - tab sis yog tias cov khoom siv txuas nrog 240V thaum teeb tsa ntawm 120V (piv txwv), kev tiv thaiv kev tiv thaiv tej zaum yuav raug puas tsuaj. Yog tias yog, lub zog siv hluav taws xob yuav tsis kaw thaum nws dhau los lossis thaum nws pib ua tsis tiav.
Kauj Ruam 5. Sau cov ntu koj xav tau:
Txhawm rau tsim qhov no, koj yuav xav tau cov khoom hauv qab no:.
- 6 Kev khi kab lus (cov davhlau ya nyob twg).
- Lub zog tiv thaiv (10 ohms).
- 2 LED (pom zoo ib qho ntsuab thiab ib qho liab).
- 2 poob resistors (330 ohms).
- SPST hloov.
- Laum
- Ib tug Soldering hlau
- Hlau txiav
- Thaum tshav kub kub ntsws tubing
Kauj Ruam 6. Qhib chav fais fab
Tshem cov ntsia hlau txuas sab saum toj thiab hauv qab ntawm rooj plaub PSU.
- Ua tib zoo saib ib puag ncig lub kaus mom dub thiab txhua lub xov hlau ua rau lawv. Lawv tuaj yeem tso tawm hluav taws xob muaj zog.
-
Ceeb toom:
Qhov no yuav tsis muaj qhov lees paub uas koj tuaj yeem muaj ntawm Chav Khoom Siv Hluav Taws Xob.
- Tsis txhob tshem daim phiaj hluav taws xob tshwj tsis yog tias koj yuav tsum tau ua. Cov kab thiab kab laug sab ntawm sab hauv qab tseem tuaj yeem muaj hluav taws xob siab rau lawv yog tias koj tsis tso PSU zaum ntev txaus. Yog tias koj yuav tsum tshem nws tawm, siv lub ntsuas ntsuas los ntsuas qhov hluav taws xob ntawm cov pins ntawm cov khoom loj tshaj plaws. Thaum koj hloov lub rooj tsavxwm, xyuas kom tseeb tias daim ntawv yas rov qab los hauv qab lub rooj tsavxwm. Tsuas yog cov kws kho hluav taws xob yuav tsum sim qhov no.
- Txhua yam uas siab dua 30 milliamps/volts tuaj yeem tua koj, lossis tsawg kawg, ua rau koj poob siab. Nco ntsoov tias koj tau tshem lub hwj huam qaum ua ntej ua qhov hloov pauv thiab tau tso lub capacitors tso tawm los ntawm kev tso nws so ob peb hnub. Yog tias tsis ntseeg, siv lub multimeter.
Kauj Ruam 7. Txiav cov hlua txuas ntawm cov xov hlau
Cov khoom txuas yog cov khoom yas uas txuas rau lub khoos phis tawj lub motherboard thiab lwm yam khoom siv hauv computer. Tawm ob peb ntiv tes ntawm cov xaim txuas kom koj tuaj yeem siv lawv tom qab rau lwm txoj haujlwm.
Kauj Ruam 8. Muab cov xov hlau uas muaj xim tib yam ua ke
Qee lub zog siv hluav taws xob tuaj yeem muaj xim ntxiv, xws li xim av. Cov xim xim rau cov xov hlau yog raws li hauv qab no:
- Liab = +5V.
- Daj = +12V.
- Xiav = -12V.
- Txiv kab ntxwv = +3.3V.
- Dawb = -5V (cov khoom siv fais fab qub xwb).
- Ntshav = +5V Standby.
- Dub = av (0V),
- Grey = lub zog nyob ntawm (tso tawm).
- Ntsuab = PS_ON# (qhib DC los ntawm luv mus rau hauv av).
Kauj Ruam 9. Kos rau qhov chaw uas yuav mus rau ntawm lub hwj huam khoom casing
Siv tus cim ruaj khov los cim qhov twg txhua ntu yuav mus rau sab ntawm lub zog siv hluav taws xob uas tsis muaj lub qhov cua, kiv cua, lossis lwm yam khoom siv. Kos rau qhov chaw uas koj xav muab txhua txoj hlua khi thiab qhov hluav taws xob nws sib haum rau. Kuj cim rau qhov chaw koj xav tso cov LEDs, hloov thiab lwm yam khoom ntxiv uas koj xav siv.
Txhawm rau kom tau txais chav ntau dua koj tuaj yeem tso lub kiv cua nyob sab nraud ntawm PSU rooj plaub lossis tshem tawm nws. Koj tseem tuaj yeem txuas cov kiv cua ntau dua yog tias koj siv lub zog-wattage siab. Yog tias koj tsis muaj chav txaus sab hauv lub zog siv hluav taws xob, koj tuaj yeem txhim kho tag nrho cov khoom siv mus rau pawg tswj hwm cais sab nraum lub zog siv hluav taws xob
Kauj Ruam 10. Laum qhov nyob hauv ib cheeb tsam dawb ntawm rooj plaub fais fab
Siv Dremel txhawm rau txhawm rau pib qhov ua raws los ntawm txhais tes reamer txhawm rau txhawm rau lub qhov kom txog thaum lawv loj txaus kom haum koj cov ntawv cog lus. Tsis tas li, laum qhov rau lub zog ON LED, Standby LED, thiab hloov.
- Nco ntsoov tias koj tsis tso ib qhov twg qhov kab lus sib dhos yuav kov tau ib yam dab tsi nyob sab hauv ntawm lub zog siv.
- Ceev faj kom tsis txhob tso cov hlau los yog cov khib nyiab sab hauv lub tshuab hluav taws xob.
Kauj Ruam 11. Laum qhov rau lub teeb ci LED
Siv lub laum los laum qhov loj txaus rau lub teeb LED kom haum.
Kauj Ruam 12. Txiav qhov rau qhov hloov thiab lwm yam khoom ntxiv
Yog tias koj tsis muaj cov cuab yeej los txiav txoj kab ncaj ncaj los ntawm cov hlau, koj tuaj yeem siv lub laum txhawm rau txhawm rau txhawm rau txhua qhov raws qhov kev txiav uas koj xav ua. Tom qab ntawd siv cov hlau txiav los txiav qhov chaw nruab nrab ntawm txhua lub qhov. Tom qab ntawd koj yuav tsum tau ua cov npoo ntawm lub qhov kom ua rau lawv du.
Ntu 2 ntawm 2: Txuas Txhua Lub Cheeb Tsam
Kauj Ruam 1. Txuas cov kab lus txuas rau lub qhov
Ntsia cov kab ntawv sib dhos rau hauv lawv qhov sib xws thiab muab cov txiv ntoo nyob tom qab. Xyuas kom lawv tsis kov dab tsi hauv lub hwj chim.
Kauj Ruam 2. Txuas 10 ohm load resistor
Txuas ib qho ntawm cov xov hlau liab mus rau lub zog tiv thaiv thiab ib qho xaim dub mus rau lwm qhov kawg ntawm 10 ohm lub zog tiv thaiv. Qhov no ua raws li lub nra, uas lub zog fais fab xav tau los ua haujlwm kom raug. Lub hwj chim tiv thaiv yuav muab cua sov ntau heev thiab yuav tsum tau teeb tsa ntawm cov phab ntsa hlau kom txias kom zoo (lossis lub dab dej kub). Xyuas kom nws tsis luv Circuit Court dab tsi.
- Koj tseem tuaj yeem txiav txim siab siv lub teeb pom kev 12v, uas yuav ua raws li lub nra tsim nyog los qhib lub hwj chim.
- Yog tias koj tsis ntshai ntawm qee qhov soldering, koj tuaj yeem hloov 10w lub zog tiv thaiv nrog lub kiv cua txias uas yog thawj zaug hauv PSU, ua tib zoo nrog lub ntsej muag txawm tias - sib phim cov kab liab thiab dub rau ib leeg.
Kauj Ruam 3. Txuas tus tes hloov qhov
Txuas ib lub ntsuab (PS_ON) xaim mus rau ib qho kawg ntawm SPST hloov. Txuas lwm qhov kawg ntawm qhov hloov mus rau xaim av dub.
- Qee qhov khoom siv hluav taws xob xav tau qhov grey thiab ntsuab los txuas ua ke txhawm rau khiav.
- Yog tias koj tsis xav siv qhov hloov pauv ntxiv, tsuas yog txuas lub ntsuab thiab xaim dub ua ke. PSU yuav raug tswj los ntawm kev hloov tom qab, yog tias muaj. Koj kuj tsis xav tau LED, tsuas yog tsis quav ntsej cov xaim grey. Txiav nws luv thiab insulate nws los ntawm tus so.
Kauj Ruam 4. Txuas Lub Hwj Huam-On LED
Txuas cov grey (Lub Hwj Chim On) xaim rau anode (ntev kawg) mus rau LED liab. Qhov no yuav yog koj lub zog-rau lub teeb.
Kauj Ruam 5. Txuas lub Power-On LED mus rau 330 ohm resistor
Txuas cov cathode (qhov kawg luv) ntawm LED mus rau anode ntawm ib qho ntawm 330 ohm poob qhov tiv thaiv. Tom qab ntawd txuas lub cathode ntawm cov tshuaj tiv thaiv poob mus rau cov xaim av dub. Thaum cov LED txuas nrog, koj tuaj yeem siv cov kua nplaum kub los yog super kua nplaum los teeb LED hauv nws qhov chaw. Koj tuaj yeem txuas cov xov hlau ncaj qha mus rau anodes thiab cathodes ntawm LEDs thiab cov tiv thaiv. Npog cov xov hlau nrog cov raj cua sov. Koj tuaj yeem npog cov resistors nrog cov cua sov ntsws ua rau ib yam nkaus.
Kauj Ruam 6. Txuas lub Standby LED
Txuas cov xaim hluav taws xob (tos tos) xaim rau anode (ntev kawg) mus rau LED ntsuab. Qhov no yuav yog koj lub teeb pom kev.
Txoj kab +5VSB yog +5V tos (yog li lub motherboard lub zog khawm, Ua rau ntawm LAN, thiab lwm yam ua haujlwm). Qhov no feem ntau muab 500-1000 mA ntawm tam sim no, txawm tias thaum lub ntsiab DC tso tawm "tawm". Nws yuav muaj txiaj ntsig los tsav lub LED los ntawm qhov no yog qhov qhia tau tias lub hauv paus tseem nyob
Kauj Ruam 7. Txuas lub Standby LED mus rau 330 ohm resistor
Txuas cov cathode (qhov luv luv) ntawm LED mus rau anode ntawm ib qho ntawm 330 ohm poob qhov tiv thaiv. Txuas lub cathode ntawm tus tiv thaiv mus rau xaim av dub. Npog cov xov hlau nrog cov raj cua sov. Koj tuaj yeem npog cov neeg tiv thaiv nrog cov cua sov ntsws ib yam nkaus.
Kauj Ruam 8. Txuas cov xim dawb rau -5V txoj hlua khi (yog tias muaj)
-5V kab tsuas yog siv rau cov khoom siv ATX qub zog. Txuas cov xaim dawb mus rau -5V txoj hlua khi, yog tias koj muaj. Nco ntsoov tias cov xov hlau tau npog nrog cov raj cua sov (pom zoo) lossis kab xev hluav taws xob.
Saib rau ATX cov khoom siv fais fab nrog 20-tus pin txuas, 20+4-tus pin txuas, lossis AT fais fab mov yog tias koj xav tau -5V
Kauj Ruam 9. Txuas cov xov hlau liab ntxiv rau +5V txoj hlua khi
Seem tag nrho cov xov hlau liab kom xaim liab liab tau nthuav tawm ntawm qhov kawg ntawm cov xov hlau liab. Tom qab ntawd txhuam lawv tag nrho ua ke thiab muab lawv tso rau ntawm +5V txoj hlua khi. Nco ntsoov tias cov xov hlau tau npog nrog cov cua sov ntsws.
Yog tias koj tsuas muaj peb lub xov tooj liab, lwm lub xov hlau (qee zaum liab) yuav tsum txuas nrog lawv
Kauj Ruam 10. Txuas cov xov hlau daj mus rau +12V txoj hlua khi
Seem tag nrho cov xov hlau daj kom xaim liab tau nthuav tawm ntawm qhov kawg ntawm cov xov hlau daj. Tom qab ntawd txhuam lawv tag nrho ua ke thiab muab lawv tso rau ntawm +12V txoj hlua khi. Nco ntsoov tias cov xov hlau tau npog nrog cov cua sov ntsws.
Kauj Ruam 11. Txuas cov kab xev txiv kab ntxwv mus rau 3.3V txoj hlua khi
Sawb tag nrho cov xov tooj liab kab xev kom xaim liab liab tau nthuav tawm qhov kawg ntawm cov xov tooj liab. Tom qab ntawd txhuam lawv tag nrho ua ke thiab muab tshuaj txhuam lawv rau +3.3V txoj hlua khi. Nco ntsoov tias cov xov hlau tau npog nrog cov cua sov ntsws.
- Nco tseg tias qee qhov khoom siv hluav taws xob tuaj yeem muaj cov xim grey lossis xim av los sawv cev rau "lub zog zoo"/"lub zog ok". (Feem ntau PSU's muaj cov kab xev liab me me uas tau siv rau kev nkag siab- 3.3V- thiab cov xaim no feem ntau ua khub ntawm qhov txuas mus rau lwm cov kab xev txiv kab ntxwv. Tsis txhob nyob twj ywm.) Cov xaim no yuav tsum txuas nrog ib qho xaim txiv kab ntxwv (+3.3V) lossis xaim liab (+5V) rau lub zog siv los ua haujlwm. Thaum tsis ntseeg, sim qis qis ua ntej (+3.3V).
- Qee qhov khoom siv hluav taws xob tshiab yuav muaj "kev nkag siab zoo" cov xov hlau uas xav tau txuas nrog cov xov hluav taws xob tiag tiag rau kev ua haujlwm kom raug. Yog tias koj tsuas muaj ob lossis tsawg kab liab kab xev, koj yuav tsum muaj xaim xim av uas yuav tsum txuas nrog txiv kab ntxwv.
Kauj Ruam 12. Txuas cov xov hlau dub uas tseem tshuav mus rau hauv qab txoj hlua khi
Seem tag nrho cov xaim dub kom xaim liab tau nthuav tawm ntawm qhov kawg ntawm cov xov dub. Tom qab ntawd txhuam lawv tag nrho ua ke thiab muab lawv txuas rau +3.3V khi ncej. Nco ntsoov tias cov xov hlau tau npog nrog cov cua sov ntsws.
- Txheeb xyuas cov kev sib txuas xoob los ntawm kev maj mam rub rau lawv. Txheeb xyuas cov xaim liab qab, thiab npog nws kom tiv thaiv kab mob luv.
- Yog tias koj tsis xav tias zoo li cuaj lub xov hlau txuas ua ke rau ib txoj hlua khi (ib yam li cov xov hlau hauv av) koj tuaj yeem hla lawv ntawm PCB. 1-3 xov hlau yuav tsum zoo. Qhov no suav nrog txiav cov xov hlau uas koj tsis tau npaj rau siv.
Kauj Ruam 13. Ntsuas lub hwj chim
Txuas lub hwj huam hluav taws xob rau sab nraum qab ntawm lub hwj chim thiab mus rau hauv lub qhov (socket) AC. Tig qhov hloov pauv tseem ceeb ntawm PSU yog tias muaj ib qho. Txheeb xyuas seb lub teeb pom kev LED teeb tuaj. Tom qab ntawd tig mus hloov thiab xyuas kom tseeb tias Lub Hwj Chim Ntawm LED los. Siv lub ntsuas hluav taws xob digital los ntsuas txhua qhov ntawm cov lus sib dhos. Xyuas kom koj tsis txhob xaim xov hlau tawm. Nws yuav tsum saib zoo thiab ua haujlwm zoo li ntxim nyiam!
Kauj Ruam 14. Txuas tus casing rov qab
Thaum txhua yam ua haujlwm, koj tuaj yeem mus tom ntej thiab rov txuas cov ntaub ntawv nrog txhua qhov kev khi lus, hloov thiab LEDs mus rau qhov seem ntawm lub zog fais fab.
Cov hluav taws xob uas tuaj yeem tsim tawm los ntawm chav tsev no yog 24v (+12, -12), 17v (+5, -12), 12v (+12, GND), 10v (+5, -5), 7v (+12, +5), 5v (+5, GND) uas yuav tsum txaus rau feem ntau ntsuas hluav taws xob
Lub tswv yim
- Yog tias koj tsis paub meej txog lub hwj chim, sim nws hauv computer ua ntej koj sau qoob. Lub computer puas qhib? Puas yog PSU tus kiv cua tuaj? Koj tuaj yeem tso koj lub voltmeter coj mus rau qhov ntsaws ntxiv (rau lub tshuab tsav). Nws yuav tsum nyeem ze rau 5V (ntawm cov xov liab thiab dub). Cov khoom siv uas koj tau rub yuav zoo li tuag vim tias nws tsis muaj lub nra rau nws cov txiaj ntsig thiab qhov ua haujlwm tso tawm yuav tsis muaj hauv av (xaim ntsuab).
- Koj tuaj yeem ua kom zoo dua ntawm lub qhov sab laug los ntawm lub zog txuas hluav taws xob, txhawm rau txhawm rau txuas cov luam yeeb. Txoj kev ntawd, koj tuaj yeem txuas cov cuab yeej siv tsheb mus rau koj lub zog siv.
- Yog tias lub zog hluav taws xob tsis ua haujlwm, uas yog, tsis muaj lub teeb ci LED, tshawb xyuas seb lub kiv cua puas tuaj. Yog tias lub kiv cua nyob hauv lub hwj chim tau qhib, tom qab ntawd LED yuav tau xaim tsis raug (qhov ua tau zoo thiab tsis zoo ntawm LED yuav raug hloov). Qhib lub rooj fais fab thiab ntxeev cov xov paj liab los yog txho ntawm LED ib puag ncig (xyuas kom tseeb tias koj tsis txhob hla tus LED resistor).
- Koj tuaj yeem siv koj lub zog muab 12V tso tawm ua lub roj teeb tsheb them lub tsheb! Ua tib zoo saib, txawm li cas los xij: yog tias koj lub roj teeb dhau lawm, lub zog tiv thaiv luv Circuit Court tiv thaiv yuav ua rau. Hauv qhov xwm txheej ntawd, nws zoo dua tso 10 Ohm, 10/20 Watts resistor hauv koob nrog 12 V tso tawm, txhawm rau kom tsis txhob dhau lub zog siv. Thaum lub roj teeb nyob ze 12V them nyiaj (koj tuaj yeem siv lub ntsuas ntsuas los txheeb xyuas qhov ntawd), koj tuaj yeem tshem tawm tus tiv thaiv, txhawm rau them lub roj teeb uas seem. Qhov no tuaj yeem txuag koj yog tias koj lub tsheb muaj lub roj teeb qub, yog lub caij ntuj no thiab koj lub tsheb tsis xav qhib, lossis yog koj tso lub teeb lossis xov tooj cua tsis raug rau ib teev thiab teev.
- Tus kiv cua ntawm PSU tuaj yeem nrov nrov; nws tau tsim los kom txias me ntsis hnyav dua PSU ntxiv rau lub khoos phis tawj. Muaj qhov ua tau ntawm tsuas yog clipping tus kiv cua tab sis tsis yog lub tswv yim zoo. Ib txoj haujlwm nyob ib puag ncig yog txiav cov hlau liab mus rau lub kiv cua (12V) thiab txuas nws mus rau cov hlau liab tawm ntawm PSU (5V). Koj tus kiv cua yuav tam sim no tig qeeb qeeb thiab yog li nyob ntsiag to, tab sis tseem muab qee qhov txias. Yog tias koj npaj yuav kos ntau qhov tam sim no los ntawm PSU qhov no yuav yog lub tswv yim tsis zoo, yog koj tus kheej txiav txim siab thiab saib seb qhov khoom kub npaum li cas. Koj tseem tuaj yeem tshem tawm cov kiv cua hauv Tshuag thiab hloov nws nrog tus qauv ntsiag to (yuav muaj kev sib tsoo los ua.)
- Txhawm rau siv nrog cov khoom uas muaj lub siab pib thauj khoom xws li 12VV lub tub yees nrog lub peev xwm txuas lub roj teeb 12V tsim nyog kom tsis txhob PSU los ntawm kev poob.
Lus ceeb toom
- Tsis txhob kov ib txoj kab uas ua rau lub capacitors. Cov capacitors yog thooj voos kheej kheej, qhwv rau hauv hnab yas nyias, nrog cov hlau nthuav tawm rau saum nrog a + lossis K feem ntau. Cov khoom siv hauv lub xeev tau luv dua, qhov dav me ntsis, thiab tsis muaj yas yas. Lawv khaws tus nqi ntau npaum li cov roj teeb ua, tab sis tsis zoo li cov roj teeb, lawv tuaj yeem tso tawm sai heev. Txawm hais tias koj tau tshem tawm chav tsev, koj yuav tsum zam qhov kov txhua lub ntsiab lus ntawm lub rooj tsavxwm tshwj tsis yog qhov tsim nyog. Siv qhov kev sojntsuam los txuas txhua yam uas koj tuaj yeem kov rau hauv av ua ntej pib ua haujlwm.
- Lub zog tsim hluav taws xob yuav muab lub zog tso zis siab. Nws yuav tshwm sim koj tsim hluav taws xob hluav taws xob ntawm qhov hluav taws xob qis los yog kib lub Circuit Court koj tab tom ua haujlwm, yog tias koj ua yuam kev. Lab PSUs muaj kev txwv tam sim no rau qhov laj thawj.
- Xyuas kom tseeb tias koj tso cov capacitors. Txuas lub hwj huam hluav taws xob, qhib lub zog (luv Lub Hwj Chim (ntsuab) xaim rau hauv av, tom qab ntawd tshem lub hwj chim kom txog thaum lub kiv cua nres.
- Xyuas kom tseeb tias koj tsis yog lub hauv paus thaum ua haujlwm ntawm cov khoom siv fais fab kom lub zog tsis ntws los ntawm koj mus rau hauv av.
