Yadda ake duba firikwensin bugun
Abubuwa
Tambayar ita ce yadda ake duba firikwensin bugun (daga nan DD), yana damuwa da yawancin masu ababen hawa, wato, waɗanda suka ci karo da kurakuran DD. A gaskiya ma, akwai hanyoyi guda biyu na gwaji - inji da kuma amfani da multimeter. Zaɓin ɗayan ko wata hanya ya dogara, a tsakanin sauran abubuwa, akan nau'in firikwensin; suna da resonant da broadband. Saboda haka, algorithm na tabbatarwa zai bambanta. Don na'urori masu auna firikwensin, ta amfani da multimeter, auna ƙimar juriya ko ƙarfin lantarki. ƙarin dubawa tare da oscilloscope kuma yana yiwuwa, wanda ke ba ka damar duba dalla-dalla akan tsarin haifar da firikwensin.
Na'urar da ka'idar aiki na firikwensin firikwensin
Resonant knock firikwensin na'urar
Akwai nau'ikan firikwensin ƙwanƙwasa iri biyu - resonant da broadband. A halin yanzu ana ɗaukar waɗanda aka yi amfani da su a matsayin waɗanda aka daina amfani da su (ana kiran su “tsofaffin”) kuma ba a amfani da su a cikin sabbin motoci. Suna da lamba ɗaya na fitarwa kuma suna da siffa kamar ganga. Na'urar firikwensin resonant ana kunna shi zuwa wani mitar sauti, wanda yayi daidai da ƙananan fashe-fashe a cikin injin konewa na ciki (fashewar mai). Duk da haka, ga kowane injin konewa na ciki, wannan mita ya bambanta, tun da yake ya dogara da ƙirarsa, diamita na piston, da sauransu.
Na'urar firikwensin ƙwanƙwasa, a gefe guda, yana ba da bayanai game da sautuna zuwa injin konewa na ciki a cikin kewayon daga 6 Hz zuwa 15 kHz (kimanin, yana iya bambanta ga firikwensin daban-daban). Wato, ECU ta riga ta yanke shawarar ko takamaiman sautin ƙaramar fashewa ne ko a'a. Irin wannan firikwensin yana da fitarwa guda biyu kuma galibi ana sanya shi akan motocin zamani.
Nau'ikan firikwensin guda biyu
Tushen ƙira na firikwensin ƙwanƙwasa na faɗaɗa shine nau'in piezoelectric, wanda ke canza aikin injiniyan da aka ɗora akan shi zuwa wutar lantarki tare da wasu sigogi (yawanci, canjin ƙarfin lantarki da aka ba da naúrar sarrafa lantarki na injin konewa na ciki, ECU shine yawanci karanta). Ana kuma haɗa abin da ake kira ma'aunin nauyi a cikin ƙirar firikwensin, wanda ya wajaba don ƙara tasirin injin.
Na'urar firikwensin watsa shirye-shiryen yana da lambobin fitarwa guda biyu, wanda, a zahiri, ana ba da ma'aunin ƙarfin lantarki daga nau'in piezoelectric. Ana ba da ƙimar wannan ƙarfin lantarki zuwa kwamfutar kuma, bisa ga shi, sashin sarrafawa yana yanke shawarar ko fashewar ta faru a wannan lokacin ko a'a. Ƙarƙashin wasu sharuɗɗa, kuskuren firikwensin na iya faruwa, wanda ECU ke sanar da direba game da shi ta kunna fitilar faɗakarwar Injin Duba akan dashboard. Akwai hanyoyi guda biyu na asali don bincika firikwensin ƙwanƙwasa, kuma ana iya yin hakan duka tare da tarwatsewa kuma ba tare da cire firikwensin daga wurin shigarwa akan toshe injin ba.
Ma'aunin wutar lantarki
Yana da matukar tasiri don duba firikwensin bugun ICE tare da multimeter (wani suna shine gwajin lantarki, yana iya zama ko dai na lantarki ko na inji). Ana iya yin wannan rajistan ta hanyar cire firikwensin daga wurin zama ko ta duba shi daidai a wurin, duk da haka, zai zama mafi dacewa don aiki tare da rushewa. Don haka, don bincika, kuna buƙatar sanya multimeter a cikin yanayin ma'auni na ƙarfin lantarki kai tsaye (DC) a cikin kewayon kusan 200 mV (ko ƙasa da haka). Bayan haka, haɗa binciken na'urar zuwa tashoshin lantarki na firikwensin. Yi ƙoƙarin yin hulɗa mai kyau, kamar yadda ingancin gwajin zai dogara da wannan, saboda wasu ƙananan ƙananan hankali (mai rahusa) multimeters bazai gane wani ɗan canji a cikin ƙarfin lantarki ba!
to sai a dauki screwdriver (ko wani abu mai karfi na silindi) a saka shi cikin tsakiyar rami na firikwensin, sannan a yi aiki da karaya ta yadda wani karfi ya taso a zoben karfe na ciki (kar a wuce gona da iri, gidan firikwensin filastik ne kuma yana iya fashe!). A wannan yanayin, kuna buƙatar kula da karatun multimeter. Ba tare da aikin injiniya ba akan firikwensin ƙwanƙwasa, ƙimar ƙarfin lantarki daga gare ta za ta zama sifili. Kuma yayin da ƙarfin da ake amfani da shi ya karu, ƙarfin fitarwa zai karu. Ga daban-daban na'urori masu auna firikwensin, yana iya zama daban-daban, amma yawanci darajar daga sifili zuwa 20 ... 30 mV tare da ƙaramin ko matsakaici na jiki.
Ana iya yin irin wannan hanya ba tare da tarwatsa firikwensin daga wurin zama ba. Don yin wannan, kana buƙatar cire haɗin lambobin sadarwa (guntu) kuma haka ma haɗa masu binciken multimeter zuwa gare su (kuma suna samar da lamba mai inganci). sannan, da taimakon kowane abu, a danna shi ko kuma a buga da wani karfe kusa da wurin da aka sanya shi. A wannan yanayin, ƙimar ƙarfin lantarki akan multimeter yakamata ya ƙaru yayin da ƙarfin da ake amfani da shi ya karu. Idan a lokacin irin wannan duba ƙimar ƙarfin fitarwar ba ta canzawa, mai yiwuwa firikwensin ba ya aiki kuma dole ne a maye gurbinsa (wadannan nodes ba za a iya gyara su ba). Koyaya, yana da daraja yin ƙarin rajistan.
Hakanan ana iya bincika ƙimar ƙarfin fitarwa daga firikwensin bugun ta hanyar sanya shi akan wani ƙarfe na ƙarfe (ko wani, amma don ya gudanar da igiyoyin sauti da kyau, wato, fashewa) sannan a buga shi da wani ƙarfe a ciki. kusanci tare da firikwensin (ku yi hankali kada ku lalata na'urar!). Mai firikwensin aiki ya kamata ya amsa wannan ta hanyar canza ƙarfin fitarwa, wanda za a nuna kai tsaye akan allon multimeter.
Hakazalika, zaku iya duba firikwensin ƙwanƙwasa resonant ("tsohuwar"). Gabaɗaya, hanyar tana kama da, kuna buƙatar haɗa ɗaya bincike zuwa lambar fitarwa, kuma na biyu zuwa jikinsa ("ƙasa"). Bayan haka, kuna buƙatar buga jikin firikwensin tare da maƙarƙashiya ko wani abu mai nauyi. Idan na'urar tana aiki, ƙimar ƙarfin fitarwa akan allon multimeter zai canza na ɗan gajeren lokaci. In ba haka ba, mai yiwuwa, na'urar firikwensin ba ta da tsari. Duk da haka, yana da daraja a bincika juriya kuma, tun da ƙarancin ƙarfin lantarki na iya zama ƙanƙanta, kuma wasu multimeter na iya kama shi kawai.
Akwai na'urori masu auna firikwensin da ke da lambobi masu fitarwa (chips ɗin fitarwa). Ana gudanar da duba su ta irin wannan hanya, don haka kuna buƙatar auna ƙimar ƙarfin fitarwa tsakanin lambobin sadarwa guda biyu. Dangane da ƙirar injin konewa na musamman na ciki, dole ne a tarwatsa firikwensin don wannan ko kuma ana iya duba shi daidai nan take.
Lura cewa bayan tasirin, ƙãra wutar lantarki dole ne ya dawo zuwa ainihin ƙimarsa. Wasu na'urori masu ƙwanƙwasa kuskure, lokacin da aka kunna su (buga su ko kusa da su), suna ƙara ƙimar ƙarfin fitarwa, amma matsalar ita ce bayan bayyanar su, ƙarfin lantarki ya kasance mai girma. Haɗarin wannan yanayin shine ECU ba ta tantance cewa firikwensin ya yi kuskure ba kuma baya kunna hasken Injin Dubawa. Amma a gaskiya, daidai da bayanin da ke fitowa daga firikwensin, sashin kulawa yana canza kusurwar wuta kuma injin konewa na ciki zai iya aiki a cikin yanayin da ba shi da kyau ga mota, wato, tare da marigayi wuta. Wannan na iya bayyana kanta a cikin ƙara yawan man fetur, asarar aiki mai ƙarfi, matsaloli lokacin fara injin konewa na ciki (musamman a yanayin sanyi) da sauran ƙananan matsaloli. Irin wannan rushewar na iya haifar da dalilai daban-daban, kuma wani lokacin yana da matukar wahala a fahimci cewa an haifar da su daidai ta hanyar rashin aiki na firikwensin ƙwanƙwasa.
Ma'aunin juriya
Ana iya bincika na'urori masu auna firikwensin bugawa, duka masu resonant da broadband, ta hanyar auna canjin juriya na ciki a yanayin aiki mai ƙarfi, wato, a yayin aikinsu. Hanyar aunawa da yanayi sun yi kama da ma'aunin ƙarfin lantarki da aka kwatanta a sama.
Bambancin kawai shine cewa ana kunna multimeter ba a cikin yanayin auna wutar lantarki ba, amma a yanayin auna ƙimar juriya ta lantarki. Matsakaicin ma'auni ya kai kusan 1000 ohms (1 kOhm). A cikin yanayin kwantar da hankali (ba fashewa), ƙimar juriya na lantarki za su kasance kusan 400 ... 500 Ohms (madaidaicin ƙimar zai bambanta ga duk na'urori masu auna firikwensin, har ma waɗanda suke daidai a cikin ƙirar). Dole ne a yi ma'auni na firikwensin firikwensin ta hanyar haɗa na'urorin multimeter zuwa firikwensin firikwensin. sai a buga ko dai a kan firikwensin da kansa ko kuma a kusa da shi (a wurin da aka makala a cikin injin konewar ciki, ko kuma, idan ya wargaje, sai a sanya shi a kan wani karfen karfe a buga shi). A lokaci guda, a hankali kula da karatun mai gwadawa. A lokacin ƙwanƙwasawa, ƙimar juriya za ta ƙaru kaɗan kuma ta dawo baya. Yawanci, juriya yana ƙaruwa zuwa 1 ... 2 kOhm.
Kamar yadda yake a yanayin auna wutar lantarki, kuna buƙatar tabbatar da cewa ƙimar juriya ta dawo zuwa ƙimar ta ta asali, kuma ba ta daskare ba. Idan wannan bai faru ba kuma juriya ta kasance babba, to, firikwensin ƙwanƙwasa kuskure ne kuma yakamata a canza shi.
Amma ga tsohon resonant knock firikwensin, ma'aunin juriya iri ɗaya ne. Dole ne a haɗa bincike ɗaya zuwa tashar fitarwa, ɗayan kuma zuwa dutsen shigarwa. Tabbata samar da ingancin lamba! sannan, ta amfani da maƙarƙashiya ko ƙaramar guduma, kuna buƙatar buga jikin firikwensin da sauƙi (“ganga”) kuma a cikin layi daya duba karatun gwajin gwaji. Su karu su koma ga asalin darajarsu.
Yana da kyau a lura cewa wasu injiniyoyi na atomatik suna la'akari da auna ƙimar juriya don zama fifiko mafi girma fiye da auna ƙimar wutar lantarki lokacin gano firikwensin bugun. Kamar yadda aka ambata a sama, canjin wutar lantarki a lokacin aikin firikwensin yana da ƙanƙanta kuma ya kai a zahiri ƴan millivolts, yayin da ana auna canjin juriya a cikin duka ohms. Saboda haka, ba kowane multimeter ba ne zai iya yin rikodin irin wannan ƙaramin ƙarfin lantarki, amma kusan kowane canji na juriya. Amma, gabaɗaya, ba kome ba kuma kuna iya yin gwaje-gwaje biyu a jere.
Duba firikwensin ƙwanƙwasa akan toshewar lantarki
Hakanan akwai hanya ɗaya don bincika firikwensin bugun ba tare da cire shi daga wurin zama ba. Don yin wannan, kuna buƙatar amfani da filogin ECU. Duk da haka, da rikitarwa na wannan cak ne cewa kana bukatar ka san abin da soket a cikin toshe dace da firikwensin, domin kowane mota model yana da wani mutum lantarki kewaye. Don haka, wannan bayanin (filin da / ko lambar kushin) yana buƙatar ƙarin fayyace a cikin littafin jagora ko kan albarkatu na musamman akan Intanet.
Kuna buƙatar haɗi zuwa sanannun fil akan toshe
Ma'anar gwajin shine auna ƙimar siginar da firikwensin ke bayarwa, da kuma duba amincin da'irar lantarki / siginar zuwa sashin sarrafawa. Don yin wannan, da farko, kuna buƙatar cire toshe daga sashin kula da injin. A kan toshe kuna buƙatar nemo lambobi biyu da ake so waɗanda kuke buƙatar haɗa na'urorin multimeter (idan binciken bai dace ba, to, zaku iya amfani da igiyoyin "extension" a cikin nau'ikan wayoyi masu sassauƙa, babban abu shine tabbatar da mai kyau da karfi lamba). A kan na'urar kanta, kuna buƙatar kunna yanayin don auna wutar lantarki kai tsaye tare da iyaka na 200 mV. to, kamar hanyar da aka bayyana a sama, kuna buƙatar buga wani wuri a cikin kusancin firikwensin. A wannan yanayin, akan allon na'urar aunawa, za'a iya ganin cewa darajar ƙarfin wutar lantarki ya canza ba zato ba tsammani. Wani ƙarin fa'ida na amfani da wannan hanyar shine idan an gano canjin wutar lantarki, to ana iya tabbatar da cewa wayoyi daga ECU zuwa firikwensin za su kasance cikakke (babu karyewa ko lalacewa ga rufin), kuma lambobin suna cikin tsari.
Hakanan yana da kyau a duba yanayin ƙyalli na garkuwar siginar / wayar wutar lantarki da ke fitowa daga kwamfutar zuwa firikwensin ƙwanƙwasa. Gaskiyar ita ce, a tsawon lokaci ko ƙarƙashin rinjayar inji, yana iya lalacewa, kuma tasirinsa, saboda haka, zai ragu. Don haka, masu jituwa na iya bayyana a cikin wayoyi, waɗanda ba a samar da su ta hanyar firikwensin ba, amma suna bayyana ƙarƙashin tasirin filayen lantarki da na maganadisu. Kuma wannan na iya haifar da karɓar yanke shawara na ƙarya ta hanyar sarrafawa, bi da bi, injin konewa na ciki ba zai yi aiki a cikin mafi kyawun yanayin ba.
Lura cewa hanyoyin da aka kwatanta a sama tare da ƙarfin lantarki da ma'aunin juriya kawai suna nuna cewa firikwensin yana aiki. Duk da haka, a wasu lokuta, ba kasancewar waɗannan tsalle-tsalle masu mahimmanci ba ne, amma ƙarin sigogin su.
Yadda za a gano ɓarna ta amfani da na'urar daukar hoto
A cikin halin da ake ciki inda aka lura da alamun gazawar firikwensin ƙwanƙwasa kuma hasken ingin konewa na ciki yana kunne, yana da ɗan sauƙi don gano ainihin dalilin, ya isa ya karanta lambar kuskure. Idan akwai matsaloli a cikin da'irar wutar lantarki, kuskuren P0325 yana gyarawa, kuma idan wayar siginar ta lalace, P0332. Idan na'urar firikwensin ya gajarta ko ɗaurin sa bai da kyau, ana iya saita wasu lambobi. Kuma don ganowa, ya isa ya sami na yau da kullun, har ma da na'urar daukar hotan takardu ta kasar Sin tare da guntu 8-bit da dacewa tare da mota (wanda bazai kasance koyaushe ba).
Lokacin da akwai fashewa, raguwa a cikin wutar lantarki, aiki marar ƙarfi a lokacin haɓakawa, to, yana yiwuwa a ƙayyade ko irin waɗannan matsalolin sun taso da gaske saboda rushewar DD kawai tare da taimakon na'urar daukar hotan takardu na OBD-II wanda ke iya karanta aikin. na tsarin firikwensin a cikin ainihin lokaci. Kyakkyawan zaɓi don irin wannan aikin shine Scan Tool Pro Black Edition.
Lokacin duba aikin firikwensin ƙwanƙwasa tare da na'urar daukar hotan takardu, kuna buƙatar duba alamun game da ɓarna, tsawon lokacin allura, saurin injin, zazzabi, ƙarfin firikwensin da lokacin kunnawa. Ta hanyar kwatanta waɗannan bayanan tare da waɗanda yakamata su kasance akan motar da za'a iya amfani da ita, yana yiwuwa a yanke shawarar ko ECU ta canza kusurwa kuma saita shi a ƙarshen don duk yanayin aiki na ICE. UOZ ya bambanta dangane da yanayin aiki, man da aka yi amfani da shi, injin konewa na ciki na motar, amma babban ma'auni shine kada ya kasance yana da tsalle-tsalle masu kaifi.
UOS na aiki
UOZ a 2000 rpm
Duba firikwensin ƙwanƙwasa tare da oscilloscope
Hakanan akwai hanya ɗaya don bincika DD - ta amfani da oscilloscope. A wannan yanayin, yana da wuya cewa zai yiwu a duba aikin ba tare da tarwatsawa ba, tun da yawanci oscilloscope shine na'urar tsaye kuma ba koyaushe yana da daraja ɗaukar shi zuwa gareji ba. Akasin haka, cire firikwensin ƙwanƙwasa daga injin konewa na ciki ba shi da wahala sosai kuma yana ɗaukar mintuna da yawa.
Chek a cikin wannan yanayin yayi kama da waɗanda aka bayyana a sama. Don yin wannan, kuna buƙatar haɗa na'urorin oscilloscope guda biyu zuwa abubuwan firikwensin daidai (ya fi dacewa don bincika firikwensin faɗaɗa, firikwensin fitarwa biyu). kara, bayan zaɓar yanayin aiki na oscilloscope, za ka iya amfani da shi don duba siffar girman siginar da ke fitowa daga firikwensin da aka gano. A cikin yanayin shiru, zai zama madaidaiciyar layi. Amma idan an yi amfani da girgizar injiniya a kan firikwensin (ba mai ƙarfi sosai ba, don kada ya lalata shi), to, maimakon layi madaidaiciya, na'urar za ta nuna fashewa. Kuma mafi karfi da bugun, mafi girma da amplitude.
A zahiri, idan girman siginar bai canza ba yayin tasirin, to wataƙila firikwensin ya fita daga tsari. Duk da haka, yana da kyau a gano shi bugu da žari ta hanyar auna ƙarfin fitarwa da juriya. Hakanan ku tuna cewa girman girman ya kamata ya zama ɗan gajeren lokaci, bayan haka an rage girman girman zuwa sifili (za a sami madaidaiciyar layi akan allon oscilloscope).
Kuna buƙatar kula da siffar siginar daga firikwensin
Duk da haka, ko da ƙwanƙwasa firikwensin ya yi aiki kuma ya ba da wani nau'i na sigina, to a kan oscilloscope kuna buƙatar nazarin siffarsa a hankali. Da kyau, ya kamata ya kasance a cikin nau'i na allura mai kauri tare da kaifi ɗaya, ƙarshen magana, kuma gaba (bangaren) ya kamata ya zama santsi, ba tare da ƙima ba. Idan hoton ya kasance haka, to, firikwensin yana cikin tsari mai kyau. Idan bugun jini yana da kololuwa da yawa, kuma gabansa yana da ƙima, to yana da kyau a maye gurbin irin wannan firikwensin. Gaskiyar ita ce, mafi mahimmanci, nau'in piezoelectric ya riga ya tsufa sosai a ciki kuma yana haifar da siginar da ba daidai ba. Bayan haka, wannan yanki mai mahimmanci na firikwensin a hankali yana kasawa a kan lokaci kuma a ƙarƙashin rinjayar rawar jiki da yanayin zafi.
Don haka, ganewar firikwensin ƙwanƙwasa tare da oscilloscope shine mafi aminci kuma cikakke, yana ba da cikakken hoto game da yanayin fasaha na na'urar.
Yadda za a duba DD
Hakanan akwai hanya ɗaya, mai sauƙi mai sauƙi, don bincika firikwensin ƙwanƙwasa. Ya ta'allaka ne a cikin gaskiyar cewa lokacin da injin konewa na ciki yana raguwa a cikin saurin kusan 2000 rpm ko kaɗan kaɗan, ta amfani da wuƙa ko ƙaramin guduma, suna buga wani wuri a cikin kusancin firikwensin (duk da haka, ba shi da daraja. bugawa kai tsaye a kan shingen Silinda, don kada ya lalata shi). Na'urar firikwensin yana fahimtar wannan tasirin azaman fashewa kuma yana watsa madaidaicin bayanin zuwa ECU. Na'urar sarrafawa, ta biyun, tana rage saurin injin konewa na ciki, wanda kunne zai iya ji cikin sauƙi. Duk da haka, tuna cewa wannan hanyar tabbatarwa ba koyaushe take aiki ba! Don haka, idan a cikin irin wannan yanayin saurin ya ragu, to, firikwensin yana cikin tsari kuma ana iya barin ƙarin tabbaci. Amma idan saurin ya kasance a matakin ɗaya, kuna buƙatar gudanar da ƙarin bincike ta amfani da ɗayan hanyoyin da ke sama.
A kan wasu motocin, ƙwanƙwasa firikwensin algorithm yana da alaƙa da bayani game da matsayi na crankshaft. Wato DD baya aiki akai-akai, amma kawai lokacin da crankshaft yana cikin wani matsayi. Wani lokaci wannan ka'idar aiki tana haifar da matsaloli wajen gano yanayin yanayin firikwensin. Wannan shine ɗayan dalilan da RPMs ba za su faɗo a zaman banza ba saboda an buga firikwensin ko kusa da shi. Bugu da ƙari, ECU ta yanke shawara game da fashewar da ta faru, ba kawai bisa bayanai daga firikwensin ba, har ma da la'akari da ƙarin abubuwan waje, irin su zafin jiki na injin konewa na ciki, saurinsa, saurin abin hawa, da kuma abubuwan da suka faru. wasu kuma. Duk waɗannan suna cikin shirye-shiryen da ECU ke aiki da su.
A irin waɗannan lokuta, zaku iya duba firikwensin ƙwanƙwasa kamar haka ... Don wannan, kuna buƙatar stroboscope, don amfani da shi a kan injin gudu don cimma matsayin "tsaye" na bel na lokaci. A cikin wannan matsayi ne aka kunna firikwensin. sa'an nan tare da maƙarƙashiya ko guduma (don dacewa kuma don kada ya lalata firikwensin, zaka iya amfani da sandar katako) don amfani da dan kadan ga firikwensin. Idan DD yana aiki, bel ɗin zai ɗan ɗanɗana. Idan wannan bai faru ba, na'urar firikwensin ya fi dacewa da kuskure, dole ne a yi ƙarin bincike (ma'auni na ƙarfin lantarki da juriya, kasancewar gajeren kewaye).
Har ila yau, a cikin wasu motocin zamani akwai abin da ake kira "ƙananan hanya mai wuyar gaske", wanda ke aiki tare da firikwensin ƙwanƙwasa kuma, a ƙarƙashin yanayin da motar ta girgiza sosai, yana sa ya yiwu a cire abubuwan da suka dace na DD. Wato, tare da wasu sigina daga madaidaicin firikwensin hanya, sashin kula da ICE yayi watsi da martani daga firikwensin ƙwanƙwasa bisa ga wani algorithm.
Bugu da ƙari ga nau'in piezoelectric, akwai resistor a cikin gidan firikwensin ƙwanƙwasa. A wasu lokuta, yana iya kasawa (ƙonawa, misali, daga yanayin zafi mai zafi ko ƙarancin siyarwa a masana'anta). Naúrar sarrafa lantarki za ta tsinkayi wannan azaman karya waya ko gajeriyar kewayawa a cikin kewaye. A ka'ida, ana iya gyara wannan yanayin ta hanyar siyar da resistor mai irin wannan halayen fasaha kusa da kwamfutar. Dole ne a sayar da lamba ɗaya zuwa ainihin siginar, kuma na biyu zuwa ƙasa. Duk da haka, matsalar a cikin wannan harka shi ne cewa juriya dabi'u na resistor ba ko da yaushe aka sani, kuma soldering ba sosai dace, idan ba zai yiwu ba. Don haka, hanya mafi sauƙi ita ce siyan sabon firikwensin kuma shigar da shi maimakon na'urar da ta gaza. Hakanan ta hanyar siyar da ƙarin juriya, zaku iya canza karatun firikwensin kuma shigar da analog daga wata mota maimakon na'urar da masana'anta suka ba da shawarar. Koyaya, kamar yadda aikin ya nuna, yana da kyau kada ku shiga cikin irin wannan wasan kwaikwayon mai son!
Sakamakon ƙarshe
A ƙarshe, 'yan kalmomi game da shigar da firikwensin bayan duba shi. Ka tuna cewa saman ƙarfe na firikwensin dole ne ya kasance mai tsabta kuma ba shi da tarkace da/ko tsatsa. Tsaftace wannan farfajiya kafin shigarwa. Hakazalika tare da saman kan wurin zama na firikwensin a jikin injin konewa na ciki. yana kuma bukatar a tsaftace shi. Hakanan ana iya mai da lambobin firikwensin da WD-40 ko makamancinsa don dalilai na rigakafi. Kuma a maimakon kullin gargajiya wanda na'urar firikwensin ke haɗe zuwa toshe injin, yana da kyau a yi amfani da ingarma mafi aminci. Yana amintar da firikwensin da ƙarfi, baya raunana ɗorawa kuma baya kwancewa akan lokaci a ƙarƙashin rinjayar girgiza.
