UNITED surplus TV matagal bago mag on mga 15 minutes...may idea po ba kayo?

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UNITED surplus TV matagal bago mag on mga 15 minutes...may idea po ba kayo?

Post by jasperramos94 on Tue May 08, 2012 12:06 am

dinala po sakin to deadset.. nakita ko shorted yung HOT value nya ay BU808DFI pinalitan ko ng C5048 gumana naman kayalang mga 5 minutes bago mag on at sobra ang init ng HOT Transistor na pinalit ko..nag dagdag ako ng heat sink ganon parin kainit ngunit hindi naman nasisira yun pinalit kong HOT transistor kaya lang patagal ng patagal bago mag on ngayon mga 20 minutes na bago mag on..ang napapansin ko wala syang supply sa crt board pag nagka supply na saka sya mag o on..any idea po mga master...

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Re: UNITED surplus TV matagal bago mag on mga 15 minutes...may idea po ba kayo?

Post by triac on Tue May 08, 2012 10:07 am

master jasperramos94 check mo muna b+ kung tama ba,resolder mo na rin ang mga supplies...check mo lahat ng boltahi kung normal ba...suggestion lng po...

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Re: UNITED surplus TV matagal bago mag on mga 15 minutes...may idea po ba kayo?

Post by jasperramos94 on Tue May 08, 2012 10:57 am

salamat master TRIAC....na check ko na master yung output ng power supply at ok naman po,pati po yung B+ 112V..ang napansin ko po pag click ko ng on nag kakaroon ng out put yung isang paa ng flyback ng 14.8 V pero ala pong display yun pong ibang paa ng flyback alang output ngunit pag lipas po ng mga 20 minutes bigla syang mag kakaroon ng display..yung paa ng flyback na kanina ay 14.8V ngayon ay 28V na tapos yung isang paa ng flyback me out put na 200V pag ganon normal na ang tv..ngunit balik nanaman pag pinatay ko at binuhay ay antay nanaman ng mga 20 minutes bago mabuhay..

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Re: UNITED surplus TV matagal bago mag on mga 15 minutes...may idea po ba kayo?

Post by triac on Tue May 08, 2012 12:42 pm

resolder muna lng muna bka lost connection lng po master pati FBT tanggalin mo na pra ma resolder sa loob...

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Re: UNITED surplus TV matagal bago mag on mga 15 minutes...may idea po ba kayo?

Post by ultrasonic™ on Wed May 09, 2012 1:15 pm


masxadong mababa yata 2sc5048 para jan... 29 inches ba ang tv mu ts ?

anu ang vert drive nito ? stv ba o tda ? try mu nga muna paki direct sub... or paki monitor ang dual supply nila kng buo...


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Re: UNITED surplus TV matagal bago mag on mga 15 minutes...may idea po ba kayo?

Post by jasperramos94 on Wed May 09, 2012 3:38 pm

salamat master TRIAC nag resolder na po ako ganun parin....

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Re: UNITED surplus TV matagal bago mag on mga 15 minutes...may idea po ba kayo?

Post by jasperramos94 on Wed May 09, 2012 3:46 pm

21 inches po ito master ULTRA ang pinalit ko po ditong Transistor ay C5048 galing po sa crt monitor...ala po kasing available ng original HOT Transistor d2 samin...siguro dapat po direct replacement muna baka iyon lang ang problema..punta me muna manila...ang vertical po nito ay AN5539....yun po bang matagal mag on ng mga ilang minutes sa karanasan po ninyo ano ang pinakamalapit na problema?

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Re: UNITED surplus TV matagal bago mag on mga 15 minutes...may idea po ba kayo?

Post by ultrasonic™ on Sat May 12, 2012 6:21 pm

marami dhilan iyan sis...
pwde kapos ang secondary supply mu (B+)
pwde my problema ang start-up ng PSU
ng poprotect ang unit.

try mung sampakan ng ibang H-out
then observe ang init..

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Re: UNITED surplus TV matagal bago mag on mga 15 minutes...may idea po ba kayo?

Post by jasperramos94 on Tue May 15, 2012 10:30 am

salamt master ultra..standby lang tong tv na to..ala available na exact hot replacement dito samin...update ko nalang kayo pag binawi na ng me ari..he..he..he..

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Re: UNITED surplus TV matagal bago mag on mga 15 minutes...may idea po ba kayo?

Post by Oscar on Tue May 15, 2012 5:46 pm


master subukan mo d1555

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Re: UNITED surplus TV matagal bago mag on mga 15 minutes...may idea po ba kayo?

Post by Electro on Fri May 18, 2012 6:35 pm


subukan mo ang iba master d1878, d2499

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Re: UNITED surplus TV matagal bago mag on mga 15 minutes...may idea po ba kayo?

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