Yuav ua li cas yuav ua rau ib tug laser los ntawm ib tug DVD?

Tej zaum tag nrho ib tug me nyuam los mus kawm txog cov hav zoov ntawm cov laser, pib ua npau suav ntawm lawv tus kheej, muaj peev xwm mus txiav txhua yam nyob rau hauv nws txoj kev: ntoo, pob zeb thiab hlau. Ntawm cov hoob kawm, qhov npau suav no yuav tsis tau pom tau hais, vim hais tias cov high-power lasers yog heev txaus ntshai rau raug tso cai mus rau hauv lub ob txhais tes ntawm cov pejxeem. Tam sim no, txawm li cas los, thaum txoj kev loj hlob ntawm computer technology, leej twg yuav txaus siab rau qhov npau suav no tsawg kawg yog rau ib co raws li.

Lub laser ntawm DVD - tus dais no yog muaj rau tag nrho cov uas muaj pliaj (tab sis tseem ua hauj lwm) tsav. Ntawm cov hoob kawm, tau txais lub "riam phom" yuav tsis ua mob nyuaj cov ntaub ntawv, tab sis daim ntawv, cov duab los qhia thiab yas yuav txawm nws yog heev muaj peev xwm.

Mus ua ib tug laser los ntawm ib tug DVD nrog nws tus kheej txhais tes, nws yog tsim nyog tsis yog li ntawd ntau npaum li cas: khiav (yuav tsum tau burner) tsav voltage capacitors, thaiv, txawb lub xov tooj roj teeb, multimeter, ib tug resistor, ib tug soldering hlau, pointer, LED teeb nyem. Thiab, ntawm chav kawm, muaj siab, dawb lub sij hawm thiab soldering txawj.

Mus ua ib tug laser los ntawm ib tug DVD-tsav, nws yog tsim nyog los lauj nws. Nws yuav tsum tau recalled hais tias nyob rau hauv thiaj li yuav tsim haum xwb sau ntawv tsav, yog li lwm tus neeg tsis muaj hwj huam txaus.

Dismantling tus tsav, koj yuav tau mus nrhiav nyob rau hauv nws ib tug laser diode. Nws yuav tsum tau nco ntsoov tias twb nyob rau hauv tej tsav ob ntawm lawv: ib tsis muaj zog (IR diode), lwm hwj chim (laser-liab). Paub qhov txawv nruab nrab ntawm lawv yog ib qhov nyuaj, tab sis tau: qhov ntau haib diode, uas yog yuav tsum tau rau qhov siv thiab ua cov laser yog nyob rau hauv lub tsav carriage thiab muaj ib tug loj radiator.

Nco ntsoov tias ua ntej tshem cov laser diode yog pom zoo kom hnav lub dab teg pluaj, txij li thaum nws (diode) yog heev "ntshai" ntawm static hluav taws xob, uas muaj peev xwm ua kom puas nws. Nyob rau hauv cov ntaub ntawv uas, yog hais tias tus saws tes yog tsis thiab nws yog tsis yooj yim sua kom tau, koj yuav tsum qhwv ib nyias hlau laser cov lus xaus.

Tom qab diode tsav tsheb yuav tsum solder tshem tawm. Yog tsis muaj nws, cov laser ntawm cov DVD yuav tsis tau txais khoom noj khoom haus, koj yuav tsum mus ua hauj lwm. Rau cov neeg tsav tsheb yuav tsum tau ob tug voltages ntawm lub capacitor 100 0.1 microfarad thiab ib tug resistor, tam sim no lub dag lub zog uas yog xaiv nyob ntawm seb tus tsav ceev (250, 300, 400, 450 thiab 500 MA, ntsig txog, rau 16x, 18x, 20 x, 22x thiab 24x).

Thaum soldering cov ntsiab thiab tso zis ntawm tej kom plus thiab rho tawm yog ib qho tseem ceeb heev tsis mus rov qab rau polarity, txwv tsis pub lub laser yuav deteriorate sai li sai tau.

Faiv fab tso lub ntaus ntawv yuav siv lub roj teeb ntawm ib tug xov tooj txawb muaj peev xwm los ntawm 200 mus rau 300 ma. Txawm li cas los, tej zaum nws yuav tsim nyog thiab ib tug loj muaj peev xwm rau ib co lasers.

Tsis tas li ntawd raws li lub hwj chim qhov twg los yuav siv tau AA roj teeb.

Nyob rau hauv thiaj li yuav xyuas seb tus neeg tsav tsheb yog soldered kom raug, koj yuav tsum tau txuas mus rau lub thib ob (tsis muaj zog) diode ntawm tus tsav, thiab nrog ib tug multimeter ntsuas lub dag lub zog ntawm qhov tam sim no.

Yog hais tias ua kom raug, koj yuav thaum kawg sau cov laser los ntawm ib tug DVD thiab muab tso rau nws mus rau hauv cov yam vaj tse nyob. Rau cov ntaus ntawv mus rau ntev, nws yog pom zoo kom txhim kho tag nrho cov ntsiab nyob rau hauv qhov chaw nrog kua nplaum thiab muab lawv.

Koj laser ntawm DVD yog yooj yim txaus, tab sis thaum ua hauj lwm nrog nws yuav tsum tau ceev faj. Nws yuav tsum tau nco ntsoov hais tias hais tias nws yuav ua kev puas tsuaj, ces nws yuav tsis tau raws kev coj kom tsiaj los yog tib neeg. Qhov muag laser yuav ua tau kom lub deterioration thiab txawm tsis pom.