jvc tv av-21va15 protect problem,heeds help to all masters..

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jvc tv av-21va15 protect problem,heeds help to all masters..

Post by daltanics on Sat Mar 10, 2012 11:40 pm

hi to all masters,pakitulong naman trobol ng jvc mag protect sya pag on ko,4x petik yong relay tapos standby.pro pag e hang ko yong eeprom may osc.sya vertical ang labas ,naisip ko vertical ang sira kaya pinalitan ko,wala paring nangyari.meron naman supply ang vert galing fbt,neg.13 and pos 13v.kaso lang lang wala akong makitan signal galing cpu TDA12062H/N1D00 patungo doon vertical input la78040n, posible kaya cpu ang sira?please advice!thanks in advance...

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Re: jvc tv av-21va15 protect problem,heeds help to all masters..

Post by Electro on Tue Mar 13, 2012 12:04 pm



master di kaya eeprom ang sira niyan ?

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Re: jvc tv av-21va15 protect problem,heeds help to all masters..

Post by daltanics on Tue Mar 13, 2012 11:01 pm

pinalitan ko na rin ng eeprom, doon ako mismo nagkuha ng file sa gumagana kaparehas na model,wala kasi akong makita na pdf sa tda120xx nya,baka meron kayo makita na schematic diagram nito

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Re: jvc tv av-21va15 protect problem,heeds help to all masters..

Post by zandertech on Thu Mar 15, 2012 2:37 pm

Master check m0 mga supplies muh fr0m smps,may nagawa me ganyan,.ang sira sh0rted n diode, rectifier sa smps ewan ko lng kung same yang sira ng say0,

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Re: jvc tv av-21va15 protect problem,heeds help to all masters..

Post by ultrasonicâ„¢ on Thu Mar 15, 2012 4:38 pm


bka CW2 chassis ito ?
sis na try mu na tignan dito ?
http://aelexian.4rumer.com/f14-television-schematic-diagram

on topic:

na check muna sis ang mga LV reg.. 12V, 9V at 5 ?

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Re: jvc tv av-21va15 protect problem,heeds help to all masters..

Post by triac on Thu Mar 15, 2012 4:39 pm

master parang tama si master zandertech bka kc may problema sa regulator paki check daw sa lahat ng mga output voltage kung meron...sana nakatulong...

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Re: jvc tv av-21va15 protect problem,heeds help to all masters..

Post by daltanics on Thu Mar 15, 2012 9:34 pm

to master zandertech:ok naman yong switch mode power supply,ang b+135,to master ultra:meron naman 12v,5v,kumpleto naman lahat voltage sa power supply pag tanggalin ko ang eeprom.thanks to all....

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Re: jvc tv av-21va15 protect problem,heeds help to all masters..

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