Television Repair

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Television Repair

Post by alvinquimbo on Wed Apr 30, 2014 2:56 am

Hi sa mga master sa tV..bago lang ko dito pero nagrerepair na ako ng mga tv..ask lang sana ako kung pincushion yung problem ng tv saan ang problema yan..?

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Re: Television Repair

Post by Hertz on Wed Apr 30, 2014 1:12 pm

kong sexy body o vow ang image ay focus sa pincushion circuit.

ano pala ang model yan inaayos mo?


Last edited by Hertz on Wed Apr 30, 2014 1:13 pm; edited 1 time in total

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Re: Television Repair

Post by Hertz on Wed Apr 30, 2014 1:13 pm

sa ibang mga modelo. madali lang matukoy ang pincushion circuit, hanapin mo lang ang pin amp JRC4558. o kong wala naman ay hanapin mo ang - side ng horizontal deflection yoke at mararating mo ang pin amp

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Re: Television Repair

Post by alvinquimbo on Wed Apr 30, 2014 9:49 pm

ah ok mga master,di pa ako nakaranas ng ganyan trouble,bale nag ask lang ako baka maka encounter ako yan..bale mostly po ba sa may horizontal side po pala yan..

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Re: Television Repair

Post by Hertz on Thu May 01, 2014 12:09 am

tama ka. madalas ganito ang epekto




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Re: Television Repair

Post by alvinquimbo on Thu May 01, 2014 8:07 pm

master hertz tanong ko lang po,nakaranas po ako ng trouble sa tv,bale ganito po ang nangyari, sharp po ito 14" nakalimutan ko ang model. Unang trouble nya ay deadset, tapos nasolve ko po. Pangalawang trouble nya ay bigla po syang nagzigzag ang image,parang binagyo,pero may channel at sounds po sya,lahat normal liban lang sa kanyang picture. pag pinatay ko naman at i-on ay bumabalik sa normal pero mga 30 minutes later babalik say sa dati nyang sakit..di ko po nasolve nyong problem,ano kaya ang dahilan nito?suspetsa ko po sa may jungle section,yung input ng vertical at saka horizontal di nag sync..tama po ba ako sa analysis ko?

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Re: Television Repair

Post by alvinquimbo on Thu May 01, 2014 8:10 pm

@master hertz & @master ultra, mga master may bibilhin ako na e-book na SMPS repair guide galing kay Jestine Yong. Ok po ba ito na e-book?at least po may guide ako sa trouble shooting lalo na sa mga SMPS..more power and godbless..

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Re: Television Repair

Post by Hertz on Fri May 02, 2014 7:03 pm

alvinquimbo wrote:@master hertz & @master ultra, mga master may bibilhin ako na e-book na SMPS repair guide galing kay Jestine Yong. Ok po ba ito na e-book?at least po may guide ako sa trouble shooting lalo na sa mga SMPS..more power and godbless..

yes. maganda ang lebrong iyan.

alvinquimbo wrote:master hertz tanong ko lang po,nakaranas po ako ng trouble sa tv,bale ganito po ang nangyari, sharp po ito 14" nakalimutan ko ang model. Unang trouble nya ay deadset, tapos nasolve ko po. Pangalawang trouble nya ay bigla po syang nagzigzag ang image,parang binagyo,pero may channel at sounds po sya,lahat normal liban lang sa kanyang picture. pag pinatay ko naman at i-on ay bumabalik sa normal pero mga 30 minutes later babalik say sa dati nyang sakit..di ko po nasolve nyong problem,ano kaya ang dahilan nito?suspetsa ko po sa may jungle section,yung input ng vertical at saka horizontal di nag sync..tama po ba ako sa analysis ko?

out of sync ka siguro. o AGC problem.

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Re: Television Repair

Post by ultrasonic™ on Sat May 03, 2014 6:52 pm

^ super agreed ako jan..  pwde ngang weak agc o out of sync yan kigz... for weak agc.. try adjust the agc IFT's.. o kng wla ang ganyang model. try kalikutin sa S.mode...
for out of sync nmn.. try check xtal oscillator 3.58/4.43mhz & 503mhz... double check din ang mga peripheral parts around jungle area specially may knalaman sa agc at oscillation

abwt nmn sa book nya.. Yes npaka very nice nyan kigz...
meron din nga xang mga books dito...

http://aelexian.4rumer.com/t1190-troubleshooting-ebooks

npakasarap basahin  ^_^

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Re: Television Repair

Post by alvinquimbo on Sat May 03, 2014 7:29 pm

dex salamat sa reply..sayang kung alam kulang sana naayos ko sana ang tv na yun.dex ask lang ako,may inaayos akong tv ngayon panasonic 14" walang model na nakalagay..deadset tapos check ko ang primary caps ay nag eestor sya ng volts after i unplug..tapos no oscillation kasi walang out sa flyback as in walang reading sa primary ng flyback..ngayon hinahanap ko pa ang salarin,ano kaya ang probs nito??ang sure ko lang ay nasa primary side ang problema..

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Re: Television Repair

Post by Ahmadiloz on Sat May 03, 2014 8:55 pm

hang mo muna h-out master..
bka shorted yan
 Very Happy

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Re: Television Repair

Post by alvinquimbo on Sat May 03, 2014 11:52 pm

cge try ko pero test ko yung h-out ok naman ang resistance reading nya..salamat..try ko muna i hang baka lumabas yung supply nya..

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Re: Television Repair

Post by alvinquimbo on Sun May 04, 2014 5:14 pm

ala pa rin nangyari ng hinang ko ang h-out..no voltage output parin..try ko pang suyurin..

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Re: Television Repair

Post by ultrasonic™ on Mon May 05, 2014 10:30 am

kng nag eestored ng V ang primary/main cap... meaning ana wa naga oscillate ang power regulator... so dapat gawin mo.. check mo kng ang 310VDC pumapasok sa power regulator. pg wla o meron ka mang masukat jan ay double check ka ngayon sa lahat ng peripheral parts ng Regulator specially ang mga high value resistor.. "madalas may mga open jan" pg ok naman ang mga yan isunod mo ngayon ang mga ecaps at zener diode sa paligid nya... then pg yan tatlong nabanggit ay ok... ay SOP ka ng mgpalit ng iba/bagong regulator

xa nga pala.. kng masxadong kabisado ang unit.. try mo silipin sa mga diag natin dito..

http://aelexian.4rumer.com/f14p50-television-schematic-diagram

baka my kapareho

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Re: Television Repair

Post by alvinquimbo on Tue May 06, 2014 7:53 am

dex ask ko lang, hanggang saan ang sakop ng hot ground? by the way dex, sa inaayos ko ngayon may nakita akong short na diode,transistor type kasi ang regulator nito dex,hindi xa IC type..try ko muna palitan baka gumana..salamat..

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Re: Television Repair

Post by alvinquimbo on Tue May 06, 2014 7:57 am

Reply with quote

Panasonic TV ( Chassis PX1 ) E.board TNP4PC008,dex ito ang model nya,katulad nito pero iba lang value ng regulator nya..

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Re: Television Repair

Post by Hertz on Tue May 06, 2014 2:27 pm

alvinquimbo wrote:dex ask ko lang, hanggang saan ang sakop ng hot ground? by the way dex, sa inaayos ko ngayon may nakita akong short na diode,transistor type kasi ang regulator nito dex,hindi xa IC type..try ko muna palitan baka gumana..salamat..

ipagpaumanhin kong ako ang sasagot. sa pagkakaalam ko sakop ng hot ground ang entrada ng ac hanggang sa input ng bridge rectifier diode. cold ground naman ang sinasakop ng + at - pin niya hanggang cboard.

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Re: Television Repair

Post by alvinquimbo on Tue May 06, 2014 6:04 pm

salamt master hertz,ganun ba yun master hertz,kasi may nakita ako sa mga pic dito na ang hot gorund ay hanggang sa may chopper input at ang secondary ng chopper ay ang cold ground. Ok lang master hertz na ikaw ang sumagot at least maliwanagn ako. salamt master hertz.

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Re: Television Repair

Post by ultrasonic™ on Wed May 07, 2014 5:58 pm

technically yan kasi ang nakagisnan natin.. na ang HOT side..... is the hot line galing main line ng outlet.. kya naging HOT SIDE ang tawag.. pero kong based natin sa mga eboard... gini-group ang hOT side sa primary side ng SMPT at isolated sa secondary para matukoy at mas mkita natin na separated ang bawat ground ng dlawa.. lalo na sa model na inayos mo ngyon vin.. dpat dun ka sa - side mismo ng secondary ecaps mgtetest ng B+

abwt sa reg.. kng C4804 ang reg nyan. pwde pamalit ang C5253 jan.

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Re: Television Repair

Post by Electro on Mon May 12, 2014 10:53 am


check mo master alvin ang damper diode baka shorted

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Re: Television Repair

Post by alvinquimbo on Mon May 12, 2014 10:56 pm

@electro nacheck ko na ang damper electro,shorted nga xa pero pinalitan ko na, ang mahal pala nito P50 ang isa,pero wala parin.hindi pako nakabili ng regulator kasi ala pang pera.hehehe..update ko lang kasi sahod na ngayon 15 at bibili na ako ng reg. salamat electro for reply.. Very Happy 

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Re: Television Repair

Post by ultrasonic™ on Wed May 14, 2014 2:28 pm

wait nlng kami sa update

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Re: Television Repair

Post by alvinquimbo on Wed May 14, 2014 10:55 pm

wait lang dex...bibili ako tom ng regulator.sweldo na tom..hehehe...post ko lang pag ok na..

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Re: Television Repair

Post by alvinquimbo on Fri May 16, 2014 11:43 pm

Mga master na ok napo ang tv na panasonic..pinalitan ko po ng regulator pero wala pa rin,pero kalaunan ng sinuyud ko ulit may isang tranny pala na sira na di ko nacheck, A1512 ang tranny na yun..ngayon ok na ang unit at maganda ang video image nya..salamt sa mga tumulong at nag advice..

lesson learn:
Kelangan talaga na itest dapat ang mga peripheral na may kinalaman na kung bakit ayaw gumana ang regulator..Sipag at tiyaga talaga dapat..  Very Happy Very Happy Very Happy 

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Re: Television Repair

Post by Hertz on Sat May 17, 2014 11:09 am

ultrasonic™ wrote:technically yan kasi ang nakagisnan natin.. na ang HOT side..... is the hot line galing main line ng outlet.. kya naging HOT SIDE ang tawag.. pero kong based natin sa mga eboard... gini-group ang hOT side sa primary side ng SMPT at isolated sa secondary para matukoy at mas mkita natin na separated ang bawat ground ng dlawa.. lalo na sa model na inayos mo ngyon vin.. dpat dun ka sa - side mismo ng secondary ecaps mgtetest ng B+

sige. makikiagree ako dyan sir. pero sa usaping adaptation lang.

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Re: Television Repair

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