TV Kho lawv tus kheej txhais tes - yog nws ua tau?

Rau hnub tim, cov kev xaiv ntawm cov ntaub ntawv rau lub npe "TV Kho lawv tus kheej txhais tes" yog loj loj. Nyob rau hauv tas li ntawd, lub Internet yuav nrhiav tau tutorials los yog manuals rau hauv kev kawm.

Needless ua kho LCD TVs nrog lawv tus kheej txhais tes, koj yuav tsum tau yam tsawg ib co txuj ci nyob rau hauv electronics. Nws yog tsim nyog los tshem tawm tej yam uas tej zaum yuav hem koj kev ruaj ntseg thiab kev ruaj ntseg ntawm koj tus hlub.

Txhua TV nws muaj nws tus yam ntxwv, uas yog ib qho tseem ceeb nyob rau hauv nws cov kev kho. Yog li ntawd, cov mus kom ze rau tim nrhiav yog nruj me ntsis tus neeg.

Txiav txim siab thaum nws nyob qhov teeb meem thiab yuav ua li cas nws yog qhia. Tej zaum qhov teeb meem yuav tsum tau rooted nyob rau hauv tsis zoo tso connectors, xov txhaum, tawg, burnt los yog cia li tawg ib feem.

Yuav ua li cas yuav kho lub TV rau koj tus kheej?

Hom kev kawm rau kev nrhiav txhaum

Troubleshoot tau tsis pub dhau feeb, tab sis lawv yog nyuaj mus ntes. Lub hom phiaj ntawm qhov tsab xov xwm no yog rau piav qhia txog lub diagnostic txoj kev niaj hnub TV khoom.

Pib. ... Vim li cas?

Pib qhov twg kho televisions nrog lawv tus kheej ob txhais tes?

Nyob rau hauv cov teeb meem, thaum lub TV yog "tuag" nyob rau hauv tag nrho cov, hais tias yog, nws yuav tsis tau muab, nws yog heev yooj yim mus nrhiav tau txhaum localization. Tab sis peb yuav tsum tau sai li sai tau mus nrhiav cov kev kho raws tau arisen, thiab ces lwm, thiab muab tshem tawm sai li sai tau.

Pib nrog huv si lub TV. Thawj ntxuav lub casing, thiab ces tus nto ntawm lub CRT thiab cov receiver card. Peb ua nws nrog ib tug lub tshuab nqus tsev nqus tsev vacuum thiab txhuam. Abnormality yuav yuav ntes tau ib zaug, yog tias koj nrhiav tau ib tug raug hluav taws chwv resistors, capacitors o, kub tuag tawm daim tawv nyias thiab transistors. Yog hais tias thaum lub sij hawm tu kinescope koj pom dawb es tsis txhob ntawm pob tshab hwj, nws txhais tau tias tsis tau kev nqus.

Kos lub hwj huam mov

Tus thawj tshaj plaws mus xyuas yog lub efficiency ntawm lub hwj huam mov. Yuav ua li cas yuav ua rau nws? Yuav pib rau disconnect tus load thiab txuas ib incandescent teeb. Yog hais tias lub voltage yog nyob rau hauv nws tsawg tshaj li 110 V, nws yog xaus lus tias lub hwj huam mov inoperable. Ces mus saib lub transformer unit, ces tus lim capacitor, uas nws voltage yuav tsum kwv yees li 160 V. Tom qab lub throttle voltage mus rau cov qhov tso zis theem. Nws yog tsim nyog los unsolder caj pas los yog fuse li disconnecting lub hwj huam mov los ntawm cov kab scan. Lub simulator loads siv ib incandescent teeb, uas yog kev cob cog rua nyob rau hauv thaum uas tig mus nrog capacitor.

Yog hais tias tus txhaum yog nyob rau hauv lub audited caij, ib tug filament teeb voltage dauv. Ib yam li ntawd saib lub lim capacitor, tswv yim circuits, thiab cov network rectifier transistor. Yog hais tias lub incandescent teeb noob puv rau hauv thiab tawm, los yog nws yuav dim lub teeb, lub hwj huam mov yog yuav puas. Yog li ntawd tuav rau cov tshev tsis muaj kev siv ntawm incandescent qhov muag teev.

Ces ntsuas lub voltage thoob plaws lub load thaum lub hwj huam mov network. Yog hais tias lub voltage yog saum toj no 130-150 B, yuav tsum tau xa mus los ntawm cov thawj chav tsev Circuit Court. Nco ntsoov lub capacitance. Yog hais tias nws tau poob, lub voltage yuav tsum muaj ntau tshaj rau txoj hauj lwm tus nqi. On qhov tsis tooj, yog hais tias tus voltage yog qis dua li ib txwm, mus saib lub qhov Circuit Court. Yog li ntawd koj nyob nraum rau koj txoj kev ua kho ntawm lub TV nrog nws tus kheej txhais tes.

Cov kauj ruam tom ntej - kab rov tav check

Yog hais tias lub hwj huam mov yog lawv xav tshuaj, xyuas cov qhov tso zis theem ntawm cov kab scan siv cov incandescent teeb. Yog hais tias cov qhov tso zis theem yog cov, nws yuav tsum muaj cai tag nrho cov nyhuv tib yam li lub teeb - nws yuav tsum tau ib tug faint lub teeb los yog puv rau hauv thiab tawm.
Transistor muaj nqis kuaj cia li nyob rau hauv cov ntaub ntawv, yog hais tias tus teeb yog lit thiab extinguished. Yog hais tias nws yog lawv xav tshuaj, thiab cov voltage yog tsawg tsawg, kom paub tseeb tias cov kev tswj pulses rau ntawm qhov chaw. Yog hais tias lub teeb teeb thiab tsis mus tawm thiab lub tsev tsis tig, lub rooj plaub yog yuav nyob rau hauv qis coils. Sim disconnecting lub kauj thiab tig rau lub TV. Yog hais tias nws yog muaj, ces qhov teeb meem yuav tsum tau nrhiav nyob rau hauv lub deflection system. Xyuas kom txhaum deflection system yuav hloov nws nrog ib tug serviceable. Nyob rau hauv cov ntaub ntawv no, lub TV puv rau ib tug luv luv lub sij hawm, thiaj li tsis mus hlawv cov kinescope.

Tus taw tes nyob rau hauv tus ncej scan

Yog hais tias koj pom kab rov tav banding, txoj kab PP nyob rau hauv kev txiav txim. Qhov teeb meem yuav tsum tau nrhiav nyob rau hauv lub neeg. Yuav pib, xyuas qhov tso zis theem thiab ib tug generator. Yog hais tias lawv voltage yog tsawg tshaj li 24, ces qhov ua rau ntawm tus txhaum yuav tsum tau pom nyob rau hauv lawv. Yog hais tias yog cov kev cuam tshuam los yog rhuav tshem ntawm lub rectifier diode yuav tsum tau hloov lub faulty kauj rau lub chaw ua hauj lwm.

Kos lub hwj huam mov Circuit Court ntawm daim duab raj

Yog hais tias qhov kev tshuaj ntsuam tsis ci ntsa iab thaum zoo PP chav tsev thiab lub hwj huam mov, saib kev ncaj ncees ntawm daim duab raj filament xov. Tej zaum clippings yuav raug tshem tawm nrog rau cov kev pab los ntawm kev sib khi.

Yuav ua li cas yuav tsum tau saib rau qhov teeb meem?

Yog hais tias muaj yog tsis muaj duab, tsis muaj suab, qhov teeb meem yog feem ntau yuav nyob rau hauv lub xov tooj cua channel. Yog hais tias muaj yog tsis muaj cov duab, tab sis muaj yog ib lub suab yog vim li cas yuav tsum tau nrhiav nyob rau hauv cov xim thaiv los yog nyob rau hauv cov kev yees duab amplifier. Yog hais tias muaj yog suab tab sis tsis muaj duab, yog vim li cas yog lub tsawg zaus amplifier los yog nyob rau hauv cov kev yees duab. Yog hais tias muaj yog ib lub suab thiab cov duab, saib rau qhov ua rau nyob rau hauv lub tuner los yog nws cov piping.

Kev mloog yuav tsum tau them rau cov kev tswj chav tsev. Los ntsuam xyuas nws, siv cov siv cov ntaub ntawv, los yog schema processor. Lawv yuav tsum tau downloaded ntawm lub chaw tsim tshuaj paus lub website.

Qhov tsab xov xwm muaj tsuas ib tug me me ib feem ntawm lub faults uas yuav daws tau ntawm nws tus kheej.

TV Kho nrog koj txhais tes yog tsis lwj liam thiab lub luag hauj lwm. Thiab yog hais tias koj puas tau ua xyem xyav rau ib tug instant uas yuav tsum tau ua nws tus kheej, nrhiav kev pab.