help po about voltage

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help po about voltage

Post by fire on Thu Nov 10, 2011 11:18 am

mga master sukat ko po primary cap.307v. ang secondary ko po B+ ay -neg 3.15V.anu po kaya sira nito?help po

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Re: help po about voltage

Post by ultrasonic™ on Thu Nov 10, 2011 1:18 pm



panasonic ba iyan ? try mu nga ilipat ang black probe sa - terminal ng secondary cap

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Re: help po about voltage

Post by fire on Thu Nov 10, 2011 1:56 pm

master ultra 43.3v lng po tpos may katabi na 2 varistor 1 diode .polytron po itong tv

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Re: help po about voltage

Post by ultrasonic™ on Thu Nov 10, 2011 2:25 pm



so hndi na negative ang nasusukat mu ngayon ?
try mu ngang palitan ang secondary caps ng ibang capacitor with the value ha.... (direct sub na agad tapos sukatan mu ulit.. baka pumapalya ka lng...

then update ka ulit

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Re: help po about voltage

Post by fire on Thu Nov 10, 2011 2:49 pm

ty master ultra.ask ko lng po pano kng mababa p rin po ung b+ ko pag pinalitan ko?pwede ko ba palitan 220u 160v to 220u to 200v?

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Re: help po about voltage

Post by ultrasonic™ on Thu Nov 10, 2011 3:53 pm

mas maganda sana sakto.. pero pwede yan... try mu.. di nmn yan puputok. ecept kng baliktad ang polarity

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Re: help po about voltage

Post by fire on Thu Nov 10, 2011 4:59 pm

master ultra mababa p rin nakuha ko 34.3v nmn.

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Re: help po about voltage

Post by ultrasonic™ on Thu Nov 10, 2011 6:26 pm



hhmmm.. nakapagdududa ang reading mu... para di accurate... DMM ba gamit mu ? wala ka bang ibang tester pa conclude lng (^_^)


try mu nga disable muna ang hor. sect.. float mu ang B+ pin ng FBT.. isunod mu nmn i hinang ang pin8 ng EEPROM..

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Re: help po about voltage

Post by fire on Thu Nov 10, 2011 9:37 pm

hehehe DMM nga po Smile .na test ko n po sa analogue wala nga B+ range to 250 and 1000dcv no reading Shocked .pero na check ko n po mosfet ok nmn. Cool

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Re: help po about voltage

Post by ultrasonic™ on Fri Nov 11, 2011 1:23 pm

teka teka so may isa sa mga tester mu ang sinungaling or out of accuracy.. try mu ng a compare ang dalawang magsimula ka nga sa primary caps.. compare mu ang reading ng dalawang tester.. kng saan ang nakakabasa ng matino... o hiram nlng muna ng 100% functional tester (^_^

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Re: help po about voltage

Post by fire on Fri Nov 11, 2011 1:52 pm

master kaya pla may na read na -neg ung dmm kc nka mV hehehe wala po tla B+ anu po next na gawin ko?

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Re: help po about voltage

Post by ultrasonic™ on Fri Nov 11, 2011 2:14 pm

super laughping ok lng yan.. charge experience yan sau.
ganito muna ang gawin mu... check mu ulit ang tester mu sa primary caps.. diba may 300+ V DC kang nasusukat ?
try mung wag tanggalin ang test probe ng tester mot at tanggalin ang AC plug ng TV unit mu sa wall outlet,.... then observe mung babagsak ba ang reading mu.. then update ka ulit

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